notebooks/d3graph.ipynb

{
  "nbformat": 4,
  "nbformat_minor": 0,
  "metadata": {
    "colab": {
      "provenance": []
    },
    "kernelspec": {
      "name": "python3",
      "display_name": "Python 3"
    },
    "language_info": {
      "name": "python"
    }
  },
  "cells": [
    {
      "cell_type": "markdown",
      "source": [
        "Welkom to the notebook of **d3graph**!\n",
        "\n",
        "\n",
        "**d3graph**: The Python Library to Create Interactive and Standalone D3js Charts. Create interactive, stand-alone, and visually attractive charts that are built on the graphics of d3 javascript (d3js) but configurable with Python.\n",
        "\n",
        "\n",
        "Visualizing your data can be the key to success in projects because it can reveal hidden insights in the data, and improve understanding. The best way to convince people is by letting them see and interact with their data. Despite many visualization packages being available in Python, it is not always straightforward to make beautiful stand-alone and interactive charts that can also work outside your own machine. The key advantage of D3 is that it works with web standards so you don’t need any other technology than a browser to make use of D3. Importantly, interactive charts can help to not just tell the reader something but let the reader see, engage, and ask questions. In this blog, I will outline how you can build your own stand-alone, interactive force-directed D3 network using Python. Note that the steps are similar to any other D3 chart. \n",
        "\n",
        "\n",
        "\n",
        "**More information:**\n",
        "* [API documentations](https://d3blocks.github.io/d3blocks/)\n",
        "* [Github](https://github.com/d3blocks/d3blocks)\n",
        "* [Medium Blog D3Graph](https://towardsdatascience.com/creating-beautiful-stand-alone-interactive-d3-charts-with-python-804117cb95a7)\n",
        "* [Medium Blog D3Blocks](https://towardsdatascience.com/d3blocks-the-python-library-to-create-interactive-and-standalone-d3js-charts-3dda98ce97d4)\n"
      ],
      "metadata": {
        "id": "aQwYO1M_ReWA"
      }
    },
    {
      "cell_type": "code",
      "execution_count": 4,
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "2eUBGzpRRVu6",
        "outputId": "5b39ebd3-64a9-46e3-d0ec-04f07ab1be69"
      },
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "Looking in indexes: https://pypi.org/simple, https://us-python.pkg.dev/colab-wheels/public/simple/\n",
            "Collecting git+https://github.com/erdogant/d3graph\n",
            "  Cloning https://github.com/erdogant/d3graph to /tmp/pip-req-build-mmhygt14\n",
            "  Running command git clone --filter=blob:none --quiet https://github.com/erdogant/d3graph /tmp/pip-req-build-mmhygt14\n",
            "  Resolved https://github.com/erdogant/d3graph to commit 0f0083e89993550f2275b4b22a9cd60a080d4ec9\n",
            "  Preparing metadata (setup.py) ... \u001b[?25l\u001b[?25hdone\n",
            "Requirement already satisfied: pandas in /usr/local/lib/python3.8/dist-packages (from d3graph==2.4.0) (1.3.5)\n",
            "Requirement already satisfied: numpy in /usr/local/lib/python3.8/dist-packages (from d3graph==2.4.0) (1.21.6)\n",
            "Requirement already satisfied: colourmap in /usr/local/lib/python3.8/dist-packages (from d3graph==2.4.0) (1.1.10)\n",
            "Requirement already satisfied: networkx>2 in /usr/local/lib/python3.8/dist-packages (from d3graph==2.4.0) (2.8.8)\n",
            "Requirement already satisfied: ismember in /usr/local/lib/python3.8/dist-packages (from d3graph==2.4.0) (1.0.2)\n",
            "Requirement already satisfied: jinja2 in /usr/local/lib/python3.8/dist-packages (from d3graph==2.4.0) (2.11.3)\n",
            "Requirement already satisfied: scikit-learn in /usr/local/lib/python3.8/dist-packages (from d3graph==2.4.0) (1.0.2)\n",
            "Requirement already satisfied: packaging in /usr/local/lib/python3.8/dist-packages (from d3graph==2.4.0) (21.3)\n",
            "Requirement already satisfied: markupsafe==2.0.1 in /usr/local/lib/python3.8/dist-packages (from d3graph==2.4.0) (2.0.1)\n",
            "Requirement already satisfied: python-louvain in /usr/local/lib/python3.8/dist-packages (from d3graph==2.4.0) (0.16)\n",
            "Requirement already satisfied: matplotlib in /usr/local/lib/python3.8/dist-packages (from colourmap->d3graph==2.4.0) (3.2.2)\n",
            "Requirement already satisfied: pyparsing!=3.0.5,>=2.0.2 in /usr/local/lib/python3.8/dist-packages (from packaging->d3graph==2.4.0) (3.0.9)\n",
            "Requirement already satisfied: python-dateutil>=2.7.3 in /usr/local/lib/python3.8/dist-packages (from pandas->d3graph==2.4.0) (2.8.2)\n",
            "Requirement already satisfied: pytz>=2017.3 in /usr/local/lib/python3.8/dist-packages (from pandas->d3graph==2.4.0) (2022.7)\n",
            "Requirement already satisfied: threadpoolctl>=2.0.0 in /usr/local/lib/python3.8/dist-packages (from scikit-learn->d3graph==2.4.0) (3.1.0)\n",
            "Requirement already satisfied: joblib>=0.11 in /usr/local/lib/python3.8/dist-packages (from scikit-learn->d3graph==2.4.0) (1.2.0)\n",
            "Requirement already satisfied: scipy>=1.1.0 in /usr/local/lib/python3.8/dist-packages (from scikit-learn->d3graph==2.4.0) (1.7.3)\n",
            "Requirement already satisfied: six>=1.5 in /usr/local/lib/python3.8/dist-packages (from python-dateutil>=2.7.3->pandas->d3graph==2.4.0) (1.15.0)\n",
            "Requirement already satisfied: kiwisolver>=1.0.1 in /usr/local/lib/python3.8/dist-packages (from matplotlib->colourmap->d3graph==2.4.0) (1.4.4)\n",
            "Requirement already satisfied: cycler>=0.10 in /usr/local/lib/python3.8/dist-packages (from matplotlib->colourmap->d3graph==2.4.0) (0.11.0)\n"
          ]
        }
      ],
      "source": [
        "#!pip install -U d3graph\n",
        "!pip install -U git+https://github.com/erdogant/d3graph\n",
        "!pip install -U scipy>=1.8.0"
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "import d3graph\n",
        "print(d3graph.__version__)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "SnuHFkeNSnNK",
        "outputId": "b22cade4-814b-47be-e295-7ce7a6e80abe"
      },
      "execution_count": 5,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "2.4.0\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "from d3graph import d3graph\n",
        "d3 = d3graph()"
      ],
      "metadata": {
        "id": "I-JWgyZKSDLb"
      },
      "execution_count": 1,
      "outputs": []
    },
    {
      "cell_type": "code",
      "source": [
        "adjmat, df = d3.import_example('karate')\n",
        "d3.graph(adjmat, color='cluster')\n",
        "\n",
        "# Create graph in notebook\n",
        "d3.show(filepath=None, notebook=True)\n"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 181
        },
        "id": "bK0Iap5FSVXz",
        "outputId": "628f8852-14ed-4897-b914-43b1629e0669"
      },
      "execution_count": 2,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stderr",
          "text": [
            "/usr/local/lib/python3.8/dist-packages/d3graph/d3graph.py:675: FutureWarning: adjacency_matrix will return a scipy.sparse array instead of a matrix in Networkx 3.0.\n",
            "  adjmat = nx.adjacency_matrix(G).todense()\n",
            "[d3graph] INFO> Set directed=True to see the markers!\n",
            "[d3graph] INFO> Keep only edges with weight>0\n",
            "[d3graph] INFO> Number of unique nodes: 34\n",
            "[d3graph] INFO> Slider range is set to [0, 7]\n",
            "[d3graph] INFO> Display in notebook using IPython.\n"
          ]
        },
        {
          "output_type": "display_data",
          "data": {
            "text/plain": [
              "<IPython.core.display.HTML object>"
            ],
            "text/html": [
              "<!DOCTYPE html>\n",
              "\n",
              "<html lang=\"en\">\n",
              "<head>\n",
              "    <meta charset=\"UTF-8\">\n",
              "    <title>d3graph</title>\n",
              "    <style type=\"text/css\">\n",
              "        .node text {\n",
              "  font-size: 10px;\n",
              "  font-family: \"Helvetica\";\n",
              "  stroke: none;\n",
              "  fill: grey;\n",
              "}\n",
              "\n",
              ".link {\n",
              "  stroke: #999;\n",
              "  stroke-opacity: .6;\n",
              "}\n",
              "\n",
              "h3 {\n",
              "  color: #1ABC9C;\n",
              "  text-align: center;\n",
              "  font-style: italic;\n",
              "  font-size: 14px;\n",
              "  font-family: \"Helvetica\";\n",
              "}\n",
              "    </style>\n",
              "    <script>\n",
              "        !function() {\n",
              "  var d3 = {\n",
              "    version: \"3.5.17\"\n",
              "  };\n",
              "  var d3_arraySlice = [].slice, d3_array = function(list) {\n",
              "    return d3_arraySlice.call(list);\n",
              "  };\n",
              "  var d3_document = this.document;\n",
              "  function d3_documentElement(node) {\n",
              "    return node && (node.ownerDocument || node.document || node).documentElement;\n",
              "  }\n",
              "  function d3_window(node) {\n",
              "    return node && (node.ownerDocument && node.ownerDocument.defaultView || node.document && node || node.defaultView);\n",
              "  }\n",
              "  if (d3_document) {\n",
              "    try {\n",
              "      d3_array(d3_document.documentElement.childNodes)[0].nodeType;\n",
              "    } catch (e) {\n",
              "      d3_array = function(list) {\n",
              "        var i = list.length, array = new Array(i);\n",
              "        while (i--) array[i] = list[i];\n",
              "        return array;\n",
              "      };\n",
              "    }\n",
              "  }\n",
              "  if (!Date.now) Date.now = function() {\n",
              "    return +new Date();\n",
              "  };\n",
              "  if (d3_document) {\n",
              "    try {\n",
              "      d3_document.createElement(\"DIV\").style.setProperty(\"opacity\", 0, \"\");\n",
              "    } catch (error) {\n",
              "      var d3_element_prototype = this.Element.prototype, d3_element_setAttribute = d3_element_prototype.setAttribute, d3_element_setAttributeNS = d3_element_prototype.setAttributeNS, d3_style_prototype = this.CSSStyleDeclaration.prototype, d3_style_setProperty = d3_style_prototype.setProperty;\n",
              "      d3_element_prototype.setAttribute = function(name, value) {\n",
              "        d3_element_setAttribute.call(this, name, value + \"\");\n",
              "      };\n",
              "      d3_element_prototype.setAttributeNS = function(space, local, value) {\n",
              "        d3_element_setAttributeNS.call(this, space, local, value + \"\");\n",
              "      };\n",
              "      d3_style_prototype.setProperty = function(name, value, priority) {\n",
              "        d3_style_setProperty.call(this, name, value + \"\", priority);\n",
              "      };\n",
              "    }\n",
              "  }\n",
              "  d3.ascending = d3_ascending;\n",
              "  function d3_ascending(a, b) {\n",
              "    return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;\n",
              "  }\n",
              "  d3.descending = function(a, b) {\n",
              "    return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;\n",
              "  };\n",
              "  d3.min = function(array, f) {\n",
              "    var i = -1, n = array.length, a, b;\n",
              "    if (arguments.length === 1) {\n",
              "      while (++i < n) if ((b = array[i]) != null && b >= b) {\n",
              "        a = b;\n",
              "        break;\n",
              "      }\n",
              "      while (++i < n) if ((b = array[i]) != null && a > b) a = b;\n",
              "    } else {\n",
              "      while (++i < n) if ((b = f.call(array, array[i], i)) != null && b >= b) {\n",
              "        a = b;\n",
              "        break;\n",
              "      }\n",
              "      while (++i < n) if ((b = f.call(array, array[i], i)) != null && a > b) a = b;\n",
              "    }\n",
              "    return a;\n",
              "  };\n",
              "  d3.max = function(array, f) {\n",
              "    var i = -1, n = array.length, a, b;\n",
              "    if (arguments.length === 1) {\n",
              "      while (++i < n) if ((b = array[i]) != null && b >= b) {\n",
              "        a = b;\n",
              "        break;\n",
              "      }\n",
              "      while (++i < n) if ((b = array[i]) != null && b > a) a = b;\n",
              "    } else {\n",
              "      while (++i < n) if ((b = f.call(array, array[i], i)) != null && b >= b) {\n",
              "        a = b;\n",
              "        break;\n",
              "      }\n",
              "      while (++i < n) if ((b = f.call(array, array[i], i)) != null && b > a) a = b;\n",
              "    }\n",
              "    return a;\n",
              "  };\n",
              "  d3.extent = function(array, f) {\n",
              "    var i = -1, n = array.length, a, b, c;\n",
              "    if (arguments.length === 1) {\n",
              "      while (++i < n) if ((b = array[i]) != null && b >= b) {\n",
              "        a = c = b;\n",
              "        break;\n",
              "      }\n",
              "      while (++i < n) if ((b = array[i]) != null) {\n",
              "        if (a > b) a = b;\n",
              "        if (c < b) c = b;\n",
              "      }\n",
              "    } else {\n",
              "      while (++i < n) if ((b = f.call(array, array[i], i)) != null && b >= b) {\n",
              "        a = c = b;\n",
              "        break;\n",
              "      }\n",
              "      while (++i < n) if ((b = f.call(array, array[i], i)) != null) {\n",
              "        if (a > b) a = b;\n",
              "        if (c < b) c = b;\n",
              "      }\n",
              "    }\n",
              "    return [ a, c ];\n",
              "  };\n",
              "  function d3_number(x) {\n",
              "    return x === null ? NaN : +x;\n",
              "  }\n",
              "  function d3_numeric(x) {\n",
              "    return !isNaN(x);\n",
              "  }\n",
              "  d3.sum = function(array, f) {\n",
              "    var s = 0, n = array.length, a, i = -1;\n",
              "    if (arguments.length === 1) {\n",
              "      while (++i < n) if (d3_numeric(a = +array[i])) s += a;\n",
              "    } else {\n",
              "      while (++i < n) if (d3_numeric(a = +f.call(array, array[i], i))) s += a;\n",
              "    }\n",
              "    return s;\n",
              "  };\n",
              "  d3.mean = function(array, f) {\n",
              "    var s = 0, n = array.length, a, i = -1, j = n;\n",
              "    if (arguments.length === 1) {\n",
              "      while (++i < n) if (d3_numeric(a = d3_number(array[i]))) s += a; else --j;\n",
              "    } else {\n",
              "      while (++i < n) if (d3_numeric(a = d3_number(f.call(array, array[i], i)))) s += a; else --j;\n",
              "    }\n",
              "    if (j) return s / j;\n",
              "  };\n",
              "  d3.quantile = function(values, p) {\n",
              "    var H = (values.length - 1) * p + 1, h = Math.floor(H), v = +values[h - 1], e = H - h;\n",
              "    return e ? v + e * (values[h] - v) : v;\n",
              "  };\n",
              "  d3.median = function(array, f) {\n",
              "    var numbers = [], n = array.length, a, i = -1;\n",
              "    if (arguments.length === 1) {\n",
              "      while (++i < n) if (d3_numeric(a = d3_number(array[i]))) numbers.push(a);\n",
              "    } else {\n",
              "      while (++i < n) if (d3_numeric(a = d3_number(f.call(array, array[i], i)))) numbers.push(a);\n",
              "    }\n",
              "    if (numbers.length) return d3.quantile(numbers.sort(d3_ascending), .5);\n",
              "  };\n",
              "  d3.variance = function(array, f) {\n",
              "    var n = array.length, m = 0, a, d, s = 0, i = -1, j = 0;\n",
              "    if (arguments.length === 1) {\n",
              "      while (++i < n) {\n",
              "        if (d3_numeric(a = d3_number(array[i]))) {\n",
              "          d = a - m;\n",
              "          m += d / ++j;\n",
              "          s += d * (a - m);\n",
              "        }\n",
              "      }\n",
              "    } else {\n",
              "      while (++i < n) {\n",
              "        if (d3_numeric(a = d3_number(f.call(array, array[i], i)))) {\n",
              "          d = a - m;\n",
              "          m += d / ++j;\n",
              "          s += d * (a - m);\n",
              "        }\n",
              "      }\n",
              "    }\n",
              "    if (j > 1) return s / (j - 1);\n",
              "  };\n",
              "  d3.deviation = function() {\n",
              "    var v = d3.variance.apply(this, arguments);\n",
              "    return v ? Math.sqrt(v) : v;\n",
              "  };\n",
              "  function d3_bisector(compare) {\n",
              "    return {\n",
              "      left: function(a, x, lo, hi) {\n",
              "        if (arguments.length < 3) lo = 0;\n",
              "        if (arguments.length < 4) hi = a.length;\n",
              "        while (lo < hi) {\n",
              "          var mid = lo + hi >>> 1;\n",
              "          if (compare(a[mid], x) < 0) lo = mid + 1; else hi = mid;\n",
              "        }\n",
              "        return lo;\n",
              "      },\n",
              "      right: function(a, x, lo, hi) {\n",
              "        if (arguments.length < 3) lo = 0;\n",
              "        if (arguments.length < 4) hi = a.length;\n",
              "        while (lo < hi) {\n",
              "          var mid = lo + hi >>> 1;\n",
              "          if (compare(a[mid], x) > 0) hi = mid; else lo = mid + 1;\n",
              "        }\n",
              "        return lo;\n",
              "      }\n",
              "    };\n",
              "  }\n",
              "  var d3_bisect = d3_bisector(d3_ascending);\n",
              "  d3.bisectLeft = d3_bisect.left;\n",
              "  d3.bisect = d3.bisectRight = d3_bisect.right;\n",
              "  d3.bisector = function(f) {\n",
              "    return d3_bisector(f.length === 1 ? function(d, x) {\n",
              "      return d3_ascending(f(d), x);\n",
              "    } : f);\n",
              "  };\n",
              "  d3.shuffle = function(array, i0, i1) {\n",
              "    if ((m = arguments.length) < 3) {\n",
              "      i1 = array.length;\n",
              "      if (m < 2) i0 = 0;\n",
              "    }\n",
              "    var m = i1 - i0, t, i;\n",
              "    while (m) {\n",
              "      i = Math.random() * m-- | 0;\n",
              "      t = array[m + i0], array[m + i0] = array[i + i0], array[i + i0] = t;\n",
              "    }\n",
              "    return array;\n",
              "  };\n",
              "  d3.permute = function(array, indexes) {\n",
              "    var i = indexes.length, permutes = new Array(i);\n",
              "    while (i--) permutes[i] = array[indexes[i]];\n",
              "    return permutes;\n",
              "  };\n",
              "  d3.pairs = function(array) {\n",
              "    var i = 0, n = array.length - 1, p0, p1 = array[0], pairs = new Array(n < 0 ? 0 : n);\n",
              "    while (i < n) pairs[i] = [ p0 = p1, p1 = array[++i] ];\n",
              "    return pairs;\n",
              "  };\n",
              "  d3.transpose = function(matrix) {\n",
              "    if (!(n = matrix.length)) return [];\n",
              "    for (var i = -1, m = d3.min(matrix, d3_transposeLength), transpose = new Array(m); ++i < m; ) {\n",
              "      for (var j = -1, n, row = transpose[i] = new Array(n); ++j < n; ) {\n",
              "        row[j] = matrix[j][i];\n",
              "      }\n",
              "    }\n",
              "    return transpose;\n",
              "  };\n",
              "  function d3_transposeLength(d) {\n",
              "    return d.length;\n",
              "  }\n",
              "  d3.zip = function() {\n",
              "    return d3.transpose(arguments);\n",
              "  };\n",
              "  d3.keys = function(map) {\n",
              "    var keys = [];\n",
              "    for (var key in map) keys.push(key);\n",
              "    return keys;\n",
              "  };\n",
              "  d3.values = function(map) {\n",
              "    var values = [];\n",
              "    for (var key in map) values.push(map[key]);\n",
              "    return values;\n",
              "  };\n",
              "  d3.entries = function(map) {\n",
              "    var entries = [];\n",
              "    for (var key in map) entries.push({\n",
              "      key: key,\n",
              "      value: map[key]\n",
              "    });\n",
              "    return entries;\n",
              "  };\n",
              "  d3.merge = function(arrays) {\n",
              "    var n = arrays.length, m, i = -1, j = 0, merged, array;\n",
              "    while (++i < n) j += arrays[i].length;\n",
              "    merged = new Array(j);\n",
              "    while (--n >= 0) {\n",
              "      array = arrays[n];\n",
              "      m = array.length;\n",
              "      while (--m >= 0) {\n",
              "        merged[--j] = array[m];\n",
              "      }\n",
              "    }\n",
              "    return merged;\n",
              "  };\n",
              "  var abs = Math.abs;\n",
              "  d3.range = function(start, stop, step) {\n",
              "    if (arguments.length < 3) {\n",
              "      step = 1;\n",
              "      if (arguments.length < 2) {\n",
              "        stop = start;\n",
              "        start = 0;\n",
              "      }\n",
              "    }\n",
              "    if ((stop - start) / step === Infinity) throw new Error(\"infinite range\");\n",
              "    var range = [], k = d3_range_integerScale(abs(step)), i = -1, j;\n",
              "    start *= k, stop *= k, step *= k;\n",
              "    if (step < 0) while ((j = start + step * ++i) > stop) range.push(j / k); else while ((j = start + step * ++i) < stop) range.push(j / k);\n",
              "    return range;\n",
              "  };\n",
              "  function d3_range_integerScale(x) {\n",
              "    var k = 1;\n",
              "    while (x * k % 1) k *= 10;\n",
              "    return k;\n",
              "  }\n",
              "  function d3_class(ctor, properties) {\n",
              "    for (var key in properties) {\n",
              "      Object.defineProperty(ctor.prototype, key, {\n",
              "        value: properties[key],\n",
              "        enumerable: false\n",
              "      });\n",
              "    }\n",
              "  }\n",
              "  d3.map = function(object, f) {\n",
              "    var map = new d3_Map();\n",
              "    if (object instanceof d3_Map) {\n",
              "      object.forEach(function(key, value) {\n",
              "        map.set(key, value);\n",
              "      });\n",
              "    } else if (Array.isArray(object)) {\n",
              "      var i = -1, n = object.length, o;\n",
              "      if (arguments.length === 1) while (++i < n) map.set(i, object[i]); else while (++i < n) map.set(f.call(object, o = object[i], i), o);\n",
              "    } else {\n",
              "      for (var key in object) map.set(key, object[key]);\n",
              "    }\n",
              "    return map;\n",
              "  };\n",
              "  function d3_Map() {\n",
              "    this._ = Object.create(null);\n",
              "  }\n",
              "  var d3_map_proto = \"__proto__\", d3_map_zero = \"\\x00\";\n",
              "  d3_class(d3_Map, {\n",
              "    has: d3_map_has,\n",
              "    get: function(key) {\n",
              "      return this._[d3_map_escape(key)];\n",
              "    },\n",
              "    set: function(key, value) {\n",
              "      return this._[d3_map_escape(key)] = value;\n",
              "    },\n",
              "    remove: d3_map_remove,\n",
              "    keys: d3_map_keys,\n",
              "    values: function() {\n",
              "      var values = [];\n",
              "      for (var key in this._) values.push(this._[key]);\n",
              "      return values;\n",
              "    },\n",
              "    entries: function() {\n",
              "      var entries = [];\n",
              "      for (var key in this._) entries.push({\n",
              "        key: d3_map_unescape(key),\n",
              "        value: this._[key]\n",
              "      });\n",
              "      return entries;\n",
              "    },\n",
              "    size: d3_map_size,\n",
              "    empty: d3_map_empty,\n",
              "    forEach: function(f) {\n",
              "      for (var key in this._) f.call(this, d3_map_unescape(key), this._[key]);\n",
              "    }\n",
              "  });\n",
              "  function d3_map_escape(key) {\n",
              "    return (key += \"\") === d3_map_proto || key[0] === d3_map_zero ? d3_map_zero + key : key;\n",
              "  }\n",
              "  function d3_map_unescape(key) {\n",
              "    return (key += \"\")[0] === d3_map_zero ? key.slice(1) : key;\n",
              "  }\n",
              "  function d3_map_has(key) {\n",
              "    return d3_map_escape(key) in this._;\n",
              "  }\n",
              "  function d3_map_remove(key) {\n",
              "    return (key = d3_map_escape(key)) in this._ && delete this._[key];\n",
              "  }\n",
              "  function d3_map_keys() {\n",
              "    var keys = [];\n",
              "    for (var key in this._) keys.push(d3_map_unescape(key));\n",
              "    return keys;\n",
              "  }\n",
              "  function d3_map_size() {\n",
              "    var size = 0;\n",
              "    for (var key in this._) ++size;\n",
              "    return size;\n",
              "  }\n",
              "  function d3_map_empty() {\n",
              "    for (var key in this._) return false;\n",
              "    return true;\n",
              "  }\n",
              "  d3.nest = function() {\n",
              "    var nest = {}, keys = [], sortKeys = [], sortValues, rollup;\n",
              "    function map(mapType, array, depth) {\n",
              "      if (depth >= keys.length) return rollup ? rollup.call(nest, array) : sortValues ? array.sort(sortValues) : array;\n",
              "      var i = -1, n = array.length, key = keys[depth++], keyValue, object, setter, valuesByKey = new d3_Map(), values;\n",
              "      while (++i < n) {\n",
              "        if (values = valuesByKey.get(keyValue = key(object = array[i]))) {\n",
              "          values.push(object);\n",
              "        } else {\n",
              "          valuesByKey.set(keyValue, [ object ]);\n",
              "        }\n",
              "      }\n",
              "      if (mapType) {\n",
              "        object = mapType();\n",
              "        setter = function(keyValue, values) {\n",
              "          object.set(keyValue, map(mapType, values, depth));\n",
              "        };\n",
              "      } else {\n",
              "        object = {};\n",
              "        setter = function(keyValue, values) {\n",
              "          object[keyValue] = map(mapType, values, depth);\n",
              "        };\n",
              "      }\n",
              "      valuesByKey.forEach(setter);\n",
              "      return object;\n",
              "    }\n",
              "    function entries(map, depth) {\n",
              "      if (depth >= keys.length) return map;\n",
              "      var array = [], sortKey = sortKeys[depth++];\n",
              "      map.forEach(function(key, keyMap) {\n",
              "        array.push({\n",
              "          key: key,\n",
              "          values: entries(keyMap, depth)\n",
              "        });\n",
              "      });\n",
              "      return sortKey ? array.sort(function(a, b) {\n",
              "        return sortKey(a.key, b.key);\n",
              "      }) : array;\n",
              "    }\n",
              "    nest.map = function(array, mapType) {\n",
              "      return map(mapType, array, 0);\n",
              "    };\n",
              "    nest.entries = function(array) {\n",
              "      return entries(map(d3.map, array, 0), 0);\n",
              "    };\n",
              "    nest.key = function(d) {\n",
              "      keys.push(d);\n",
              "      return nest;\n",
              "    };\n",
              "    nest.sortKeys = function(order) {\n",
              "      sortKeys[keys.length - 1] = order;\n",
              "      return nest;\n",
              "    };\n",
              "    nest.sortValues = function(order) {\n",
              "      sortValues = order;\n",
              "      return nest;\n",
              "    };\n",
              "    nest.rollup = function(f) {\n",
              "      rollup = f;\n",
              "      return nest;\n",
              "    };\n",
              "    return nest;\n",
              "  };\n",
              "  d3.set = function(array) {\n",
              "    var set = new d3_Set();\n",
              "    if (array) for (var i = 0, n = array.length; i < n; ++i) set.add(array[i]);\n",
              "    return set;\n",
              "  };\n",
              "  function d3_Set() {\n",
              "    this._ = Object.create(null);\n",
              "  }\n",
              "  d3_class(d3_Set, {\n",
              "    has: d3_map_has,\n",
              "    add: function(key) {\n",
              "      this._[d3_map_escape(key += \"\")] = true;\n",
              "      return key;\n",
              "    },\n",
              "    remove: d3_map_remove,\n",
              "    values: d3_map_keys,\n",
              "    size: d3_map_size,\n",
              "    empty: d3_map_empty,\n",
              "    forEach: function(f) {\n",
              "      for (var key in this._) f.call(this, d3_map_unescape(key));\n",
              "    }\n",
              "  });\n",
              "  d3.behavior = {};\n",
              "  function d3_identity(d) {\n",
              "    return d;\n",
              "  }\n",
              "  d3.rebind = function(target, source) {\n",
              "    var i = 1, n = arguments.length, method;\n",
              "    while (++i < n) target[method = arguments[i]] = d3_rebind(target, source, source[method]);\n",
              "    return target;\n",
              "  };\n",
              "  function d3_rebind(target, source, method) {\n",
              "    return function() {\n",
              "      var value = method.apply(source, arguments);\n",
              "      return value === source ? target : value;\n",
              "    };\n",
              "  }\n",
              "  function d3_vendorSymbol(object, name) {\n",
              "    if (name in object) return name;\n",
              "    name = name.charAt(0).toUpperCase() + name.slice(1);\n",
              "    for (var i = 0, n = d3_vendorPrefixes.length; i < n; ++i) {\n",
              "      var prefixName = d3_vendorPrefixes[i] + name;\n",
              "      if (prefixName in object) return prefixName;\n",
              "    }\n",
              "  }\n",
              "  var d3_vendorPrefixes = [ \"webkit\", \"ms\", \"moz\", \"Moz\", \"o\", \"O\" ];\n",
              "  function d3_noop() {}\n",
              "  d3.dispatch = function() {\n",
              "    var dispatch = new d3_dispatch(), i = -1, n = arguments.length;\n",
              "    while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);\n",
              "    return dispatch;\n",
              "  };\n",
              "  function d3_dispatch() {}\n",
              "  d3_dispatch.prototype.on = function(type, listener) {\n",
              "    var i = type.indexOf(\".\"), name = \"\";\n",
              "    if (i >= 0) {\n",
              "      name = type.slice(i + 1);\n",
              "      type = type.slice(0, i);\n",
              "    }\n",
              "    if (type) return arguments.length < 2 ? this[type].on(name) : this[type].on(name, listener);\n",
              "    if (arguments.length === 2) {\n",
              "      if (listener == null) for (type in this) {\n",
              "        if (this.hasOwnProperty(type)) this[type].on(name, null);\n",
              "      }\n",
              "      return this;\n",
              "    }\n",
              "  };\n",
              "  function d3_dispatch_event(dispatch) {\n",
              "    var listeners = [], listenerByName = new d3_Map();\n",
              "    function event() {\n",
              "      var z = listeners, i = -1, n = z.length, l;\n",
              "      while (++i < n) if (l = z[i].on) l.apply(this, arguments);\n",
              "      return dispatch;\n",
              "    }\n",
              "    event.on = function(name, listener) {\n",
              "      var l = listenerByName.get(name), i;\n",
              "      if (arguments.length < 2) return l && l.on;\n",
              "      if (l) {\n",
              "        l.on = null;\n",
              "        listeners = listeners.slice(0, i = listeners.indexOf(l)).concat(listeners.slice(i + 1));\n",
              "        listenerByName.remove(name);\n",
              "      }\n",
              "      if (listener) listeners.push(listenerByName.set(name, {\n",
              "        on: listener\n",
              "      }));\n",
              "      return dispatch;\n",
              "    };\n",
              "    return event;\n",
              "  }\n",
              "  d3.event = null;\n",
              "  function d3_eventPreventDefault() {\n",
              "    d3.event.preventDefault();\n",
              "  }\n",
              "  function d3_eventSource() {\n",
              "    var e = d3.event, s;\n",
              "    while (s = e.sourceEvent) e = s;\n",
              "    return e;\n",
              "  }\n",
              "  function d3_eventDispatch(target) {\n",
              "    var dispatch = new d3_dispatch(), i = 0, n = arguments.length;\n",
              "    while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);\n",
              "    dispatch.of = function(thiz, argumentz) {\n",
              "      return function(e1) {\n",
              "        try {\n",
              "          var e0 = e1.sourceEvent = d3.event;\n",
              "          e1.target = target;\n",
              "          d3.event = e1;\n",
              "          dispatch[e1.type].apply(thiz, argumentz);\n",
              "        } finally {\n",
              "          d3.event = e0;\n",
              "        }\n",
              "      };\n",
              "    };\n",
              "    return dispatch;\n",
              "  }\n",
              "  d3.requote = function(s) {\n",
              "    return s.replace(d3_requote_re, \"\\\\$&\");\n",
              "  };\n",
              "  var d3_requote_re = /[\\\\\\^\\$\\*\\+\\?\\|\\[\\]\\(\\)\\.\\{\\}]/g;\n",
              "  var d3_subclass = {}.__proto__ ? function(object, prototype) {\n",
              "    object.__proto__ = prototype;\n",
              "  } : function(object, prototype) {\n",
              "    for (var property in prototype) object[property] = prototype[property];\n",
              "  };\n",
              "  function d3_selection(groups) {\n",
              "    d3_subclass(groups, d3_selectionPrototype);\n",
              "    return groups;\n",
              "  }\n",
              "  var d3_select = function(s, n) {\n",
              "    return n.querySelector(s);\n",
              "  }, d3_selectAll = function(s, n) {\n",
              "    return n.querySelectorAll(s);\n",
              "  }, d3_selectMatches = function(n, s) {\n",
              "    var d3_selectMatcher = n.matches || n[d3_vendorSymbol(n, \"matchesSelector\")];\n",
              "    d3_selectMatches = function(n, s) {\n",
              "      return d3_selectMatcher.call(n, s);\n",
              "    };\n",
              "    return d3_selectMatches(n, s);\n",
              "  };\n",
              "  if (typeof Sizzle === \"function\") {\n",
              "    d3_select = function(s, n) {\n",
              "      return Sizzle(s, n)[0] || null;\n",
              "    };\n",
              "    d3_selectAll = Sizzle;\n",
              "    d3_selectMatches = Sizzle.matchesSelector;\n",
              "  }\n",
              "  d3.selection = function() {\n",
              "    return d3.select(d3_document.documentElement);\n",
              "  };\n",
              "  var d3_selectionPrototype = d3.selection.prototype = [];\n",
              "  d3_selectionPrototype.select = function(selector) {\n",
              "    var subgroups = [], subgroup, subnode, group, node;\n",
              "    selector = d3_selection_selector(selector);\n",
              "    for (var j = -1, m = this.length; ++j < m; ) {\n",
              "      subgroups.push(subgroup = []);\n",
              "      subgroup.parentNode = (group = this[j]).parentNode;\n",
              "      for (var i = -1, n = group.length; ++i < n; ) {\n",
              "        if (node = group[i]) {\n",
              "          subgroup.push(subnode = selector.call(node, node.__data__, i, j));\n",
              "          if (subnode && \"__data__\" in node) subnode.__data__ = node.__data__;\n",
              "        } else {\n",
              "          subgroup.push(null);\n",
              "        }\n",
              "      }\n",
              "    }\n",
              "    return d3_selection(subgroups);\n",
              "  };\n",
              "  function d3_selection_selector(selector) {\n",
              "    return typeof selector === \"function\" ? selector : function() {\n",
              "      return d3_select(selector, this);\n",
              "    };\n",
              "  }\n",
              "  d3_selectionPrototype.selectAll = function(selector) {\n",
              "    var subgroups = [], subgroup, node;\n",
              "    selector = d3_selection_selectorAll(selector);\n",
              "    for (var j = -1, m = this.length; ++j < m; ) {\n",
              "      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {\n",
              "        if (node = group[i]) {\n",
              "          subgroups.push(subgroup = d3_array(selector.call(node, node.__data__, i, j)));\n",
              "          subgroup.parentNode = node;\n",
              "        }\n",
              "      }\n",
              "    }\n",
              "    return d3_selection(subgroups);\n",
              "  };\n",
              "  function d3_selection_selectorAll(selector) {\n",
              "    return typeof selector === \"function\" ? selector : function() {\n",
              "      return d3_selectAll(selector, this);\n",
              "    };\n",
              "  }\n",
              "  var d3_nsXhtml = \"http://www.w3.org/1999/xhtml\";\n",
              "  var d3_nsPrefix = {\n",
              "    svg: \"http://www.w3.org/2000/svg\",\n",
              "    xhtml: d3_nsXhtml,\n",
              "    xlink: \"http://www.w3.org/1999/xlink\",\n",
              "    xml: \"http://www.w3.org/XML/1998/namespace\",\n",
              "    xmlns: \"http://www.w3.org/2000/xmlns/\"\n",
              "  };\n",
              "  d3.ns = {\n",
              "    prefix: d3_nsPrefix,\n",
              "    qualify: function(name) {\n",
              "      var i = name.indexOf(\":\"), prefix = name;\n",
              "      if (i >= 0 && (prefix = name.slice(0, i)) !== \"xmlns\") name = name.slice(i + 1);\n",
              "      return d3_nsPrefix.hasOwnProperty(prefix) ? {\n",
              "        space: d3_nsPrefix[prefix],\n",
              "        local: name\n",
              "      } : name;\n",
              "    }\n",
              "  };\n",
              "  d3_selectionPrototype.attr = function(name, value) {\n",
              "    if (arguments.length < 2) {\n",
              "      if (typeof name === \"string\") {\n",
              "        var node = this.node();\n",
              "        name = d3.ns.qualify(name);\n",
              "        return name.local ? node.getAttributeNS(name.space, name.local) : node.getAttribute(name);\n",
              "      }\n",
              "      for (value in name) this.each(d3_selection_attr(value, name[value]));\n",
              "      return this;\n",
              "    }\n",
              "    return this.each(d3_selection_attr(name, value));\n",
              "  };\n",
              "  function d3_selection_attr(name, value) {\n",
              "    name = d3.ns.qualify(name);\n",
              "    function attrNull() {\n",
              "      this.removeAttribute(name);\n",
              "    }\n",
              "    function attrNullNS() {\n",
              "      this.removeAttributeNS(name.space, name.local);\n",
              "    }\n",
              "    function attrConstant() {\n",
              "      this.setAttribute(name, value);\n",
              "    }\n",
              "    function attrConstantNS() {\n",
              "      this.setAttributeNS(name.space, name.local, value);\n",
              "    }\n",
              "    function attrFunction() {\n",
              "      var x = value.apply(this, arguments);\n",
              "      if (x == null) this.removeAttribute(name); else this.setAttribute(name, x);\n",
              "    }\n",
              "    function attrFunctionNS() {\n",
              "      var x = value.apply(this, arguments);\n",
              "      if (x == null) this.removeAttributeNS(name.space, name.local); else this.setAttributeNS(name.space, name.local, x);\n",
              "    }\n",
              "    return value == null ? name.local ? attrNullNS : attrNull : typeof value === \"function\" ? name.local ? attrFunctionNS : attrFunction : name.local ? attrConstantNS : attrConstant;\n",
              "  }\n",
              "  function d3_collapse(s) {\n",
              "    return s.trim().replace(/\\s+/g, \" \");\n",
              "  }\n",
              "  d3_selectionPrototype.classed = function(name, value) {\n",
              "    if (arguments.length < 2) {\n",
              "      if (typeof name === \"string\") {\n",
              "        var node = this.node(), n = (name = d3_selection_classes(name)).length, i = -1;\n",
              "        if (value = node.classList) {\n",
              "          while (++i < n) if (!value.contains(name[i])) return false;\n",
              "        } else {\n",
              "          value = node.getAttribute(\"class\");\n",
              "          while (++i < n) if (!d3_selection_classedRe(name[i]).test(value)) return false;\n",
              "        }\n",
              "        return true;\n",
              "      }\n",
              "      for (value in name) this.each(d3_selection_classed(value, name[value]));\n",
              "      return this;\n",
              "    }\n",
              "    return this.each(d3_selection_classed(name, value));\n",
              "  };\n",
              "  function d3_selection_classedRe(name) {\n",
              "    return new RegExp(\"(?:^|\\\\s+)\" + d3.requote(name) + \"(?:\\\\s+|$)\", \"g\");\n",
              "  }\n",
              "  function d3_selection_classes(name) {\n",
              "    return (name + \"\").trim().split(/^|\\s+/);\n",
              "  }\n",
              "  function d3_selection_classed(name, value) {\n",
              "    name = d3_selection_classes(name).map(d3_selection_classedName);\n",
              "    var n = name.length;\n",
              "    function classedConstant() {\n",
              "      var i = -1;\n",
              "      while (++i < n) name[i](this, value);\n",
              "    }\n",
              "    function classedFunction() {\n",
              "      var i = -1, x = value.apply(this, arguments);\n",
              "      while (++i < n) name[i](this, x);\n",
              "    }\n",
              "    return typeof value === \"function\" ? classedFunction : classedConstant;\n",
              "  }\n",
              "  function d3_selection_classedName(name) {\n",
              "    var re = d3_selection_classedRe(name);\n",
              "    return function(node, value) {\n",
              "      if (c = node.classList) return value ? c.add(name) : c.remove(name);\n",
              "      var c = node.getAttribute(\"class\") || \"\";\n",
              "      if (value) {\n",
              "        re.lastIndex = 0;\n",
              "        if (!re.test(c)) node.setAttribute(\"class\", d3_collapse(c + \" \" + name));\n",
              "      } else {\n",
              "        node.setAttribute(\"class\", d3_collapse(c.replace(re, \" \")));\n",
              "      }\n",
              "    };\n",
              "  }\n",
              "  d3_selectionPrototype.style = function(name, value, priority) {\n",
              "    var n = arguments.length;\n",
              "    if (n < 3) {\n",
              "      if (typeof name !== \"string\") {\n",
              "        if (n < 2) value = \"\";\n",
              "        for (priority in name) this.each(d3_selection_style(priority, name[priority], value));\n",
              "        return this;\n",
              "      }\n",
              "      if (n < 2) {\n",
              "        var node = this.node();\n",
              "        return d3_window(node).getComputedStyle(node, null).getPropertyValue(name);\n",
              "      }\n",
              "      priority = \"\";\n",
              "    }\n",
              "    return this.each(d3_selection_style(name, value, priority));\n",
              "  };\n",
              "  function d3_selection_style(name, value, priority) {\n",
              "    function styleNull() {\n",
              "      this.style.removeProperty(name);\n",
              "    }\n",
              "    function styleConstant() {\n",
              "      this.style.setProperty(name, value, priority);\n",
              "    }\n",
              "    function styleFunction() {\n",
              "      var x = value.apply(this, arguments);\n",
              "      if (x == null) this.style.removeProperty(name); else this.style.setProperty(name, x, priority);\n",
              "    }\n",
              "    return value == null ? styleNull : typeof value === \"function\" ? styleFunction : styleConstant;\n",
              "  }\n",
              "  d3_selectionPrototype.property = function(name, value) {\n",
              "    if (arguments.length < 2) {\n",
              "      if (typeof name === \"string\") return this.node()[name];\n",
              "      for (value in name) this.each(d3_selection_property(value, name[value]));\n",
              "      return this;\n",
              "    }\n",
              "    return this.each(d3_selection_property(name, value));\n",
              "  };\n",
              "  function d3_selection_property(name, value) {\n",
              "    function propertyNull() {\n",
              "      delete this[name];\n",
              "    }\n",
              "    function propertyConstant() {\n",
              "      this[name] = value;\n",
              "    }\n",
              "    function propertyFunction() {\n",
              "      var x = value.apply(this, arguments);\n",
              "      if (x == null) delete this[name]; else this[name] = x;\n",
              "    }\n",
              "    return value == null ? propertyNull : typeof value === \"function\" ? propertyFunction : propertyConstant;\n",
              "  }\n",
              "  d3_selectionPrototype.text = function(value) {\n",
              "    return arguments.length ? this.each(typeof value === \"function\" ? function() {\n",
              "      var v = value.apply(this, arguments);\n",
              "      this.textContent = v == null ? \"\" : v;\n",
              "    } : value == null ? function() {\n",
              "      this.textContent = \"\";\n",
              "    } : function() {\n",
              "      this.textContent = value;\n",
              "    }) : this.node().textContent;\n",
              "  };\n",
              "  d3_selectionPrototype.html = function(value) {\n",
              "    return arguments.length ? this.each(typeof value === \"function\" ? function() {\n",
              "      var v = value.apply(this, arguments);\n",
              "      this.innerHTML = v == null ? \"\" : v;\n",
              "    } : value == null ? function() {\n",
              "      this.innerHTML = \"\";\n",
              "    } : function() {\n",
              "      this.innerHTML = value;\n",
              "    }) : this.node().innerHTML;\n",
              "  };\n",
              "  d3_selectionPrototype.append = function(name) {\n",
              "    name = d3_selection_creator(name);\n",
              "    return this.select(function() {\n",
              "      return this.appendChild(name.apply(this, arguments));\n",
              "    });\n",
              "  };\n",
              "  function d3_selection_creator(name) {\n",
              "    function create() {\n",
              "      var document = this.ownerDocument, namespace = this.namespaceURI;\n",
              "      return namespace === d3_nsXhtml && document.documentElement.namespaceURI === d3_nsXhtml ? document.createElement(name) : document.createElementNS(namespace, name);\n",
              "    }\n",
              "    function createNS() {\n",
              "      return this.ownerDocument.createElementNS(name.space, name.local);\n",
              "    }\n",
              "    return typeof name === \"function\" ? name : (name = d3.ns.qualify(name)).local ? createNS : create;\n",
              "  }\n",
              "  d3_selectionPrototype.insert = function(name, before) {\n",
              "    name = d3_selection_creator(name);\n",
              "    before = d3_selection_selector(before);\n",
              "    return this.select(function() {\n",
              "      return this.insertBefore(name.apply(this, arguments), before.apply(this, arguments) || null);\n",
              "    });\n",
              "  };\n",
              "  d3_selectionPrototype.remove = function() {\n",
              "    return this.each(d3_selectionRemove);\n",
              "  };\n",
              "  function d3_selectionRemove() {\n",
              "    var parent = this.parentNode;\n",
              "    if (parent) parent.removeChild(this);\n",
              "  }\n",
              "  d3_selectionPrototype.data = function(value, key) {\n",
              "    var i = -1, n = this.length, group, node;\n",
              "    if (!arguments.length) {\n",
              "      value = new Array(n = (group = this[0]).length);\n",
              "      while (++i < n) {\n",
              "        if (node = group[i]) {\n",
              "          value[i] = node.__data__;\n",
              "        }\n",
              "      }\n",
              "      return value;\n",
              "    }\n",
              "    function bind(group, groupData) {\n",
              "      var i, n = group.length, m = groupData.length, n0 = Math.min(n, m), updateNodes = new Array(m), enterNodes = new Array(m), exitNodes = new Array(n), node, nodeData;\n",
              "      if (key) {\n",
              "        var nodeByKeyValue = new d3_Map(), keyValues = new Array(n), keyValue;\n",
              "        for (i = -1; ++i < n; ) {\n",
              "          if (node = group[i]) {\n",
              "            if (nodeByKeyValue.has(keyValue = key.call(node, node.__data__, i))) {\n",
              "              exitNodes[i] = node;\n",
              "            } else {\n",
              "              nodeByKeyValue.set(keyValue, node);\n",
              "            }\n",
              "            keyValues[i] = keyValue;\n",
              "          }\n",
              "        }\n",
              "        for (i = -1; ++i < m; ) {\n",
              "          if (!(node = nodeByKeyValue.get(keyValue = key.call(groupData, nodeData = groupData[i], i)))) {\n",
              "            enterNodes[i] = d3_selection_dataNode(nodeData);\n",
              "          } else if (node !== true) {\n",
              "            updateNodes[i] = node;\n",
              "            node.__data__ = nodeData;\n",
              "          }\n",
              "          nodeByKeyValue.set(keyValue, true);\n",
              "        }\n",
              "        for (i = -1; ++i < n; ) {\n",
              "          if (i in keyValues && nodeByKeyValue.get(keyValues[i]) !== true) {\n",
              "            exitNodes[i] = group[i];\n",
              "          }\n",
              "        }\n",
              "      } else {\n",
              "        for (i = -1; ++i < n0; ) {\n",
              "          node = group[i];\n",
              "          nodeData = groupData[i];\n",
              "          if (node) {\n",
              "            node.__data__ = nodeData;\n",
              "            updateNodes[i] = node;\n",
              "          } else {\n",
              "            enterNodes[i] = d3_selection_dataNode(nodeData);\n",
              "          }\n",
              "        }\n",
              "        for (;i < m; ++i) {\n",
              "          enterNodes[i] = d3_selection_dataNode(groupData[i]);\n",
              "        }\n",
              "        for (;i < n; ++i) {\n",
              "          exitNodes[i] = group[i];\n",
              "        }\n",
              "      }\n",
              "      enterNodes.update = updateNodes;\n",
              "      enterNodes.parentNode = updateNodes.parentNode = exitNodes.parentNode = group.parentNode;\n",
              "      enter.push(enterNodes);\n",
              "      update.push(updateNodes);\n",
              "      exit.push(exitNodes);\n",
              "    }\n",
              "    var enter = d3_selection_enter([]), update = d3_selection([]), exit = d3_selection([]);\n",
              "    if (typeof value === \"function\") {\n",
              "      while (++i < n) {\n",
              "        bind(group = this[i], value.call(group, group.parentNode.__data__, i));\n",
              "      }\n",
              "    } else {\n",
              "      while (++i < n) {\n",
              "        bind(group = this[i], value);\n",
              "      }\n",
              "    }\n",
              "    update.enter = function() {\n",
              "      return enter;\n",
              "    };\n",
              "    update.exit = function() {\n",
              "      return exit;\n",
              "    };\n",
              "    return update;\n",
              "  };\n",
              "  function d3_selection_dataNode(data) {\n",
              "    return {\n",
              "      __data__: data\n",
              "    };\n",
              "  }\n",
              "  d3_selectionPrototype.datum = function(value) {\n",
              "    return arguments.length ? this.property(\"__data__\", value) : this.property(\"__data__\");\n",
              "  };\n",
              "  d3_selectionPrototype.filter = function(filter) {\n",
              "    var subgroups = [], subgroup, group, node;\n",
              "    if (typeof filter !== \"function\") filter = d3_selection_filter(filter);\n",
              "    for (var j = 0, m = this.length; j < m; j++) {\n",
              "      subgroups.push(subgroup = []);\n",
              "      subgroup.parentNode = (group = this[j]).parentNode;\n",
              "      for (var i = 0, n = group.length; i < n; i++) {\n",
              "        if ((node = group[i]) && filter.call(node, node.__data__, i, j)) {\n",
              "          subgroup.push(node);\n",
              "        }\n",
              "      }\n",
              "    }\n",
              "    return d3_selection(subgroups);\n",
              "  };\n",
              "  function d3_selection_filter(selector) {\n",
              "    return function() {\n",
              "      return d3_selectMatches(this, selector);\n",
              "    };\n",
              "  }\n",
              "  d3_selectionPrototype.order = function() {\n",
              "    for (var j = -1, m = this.length; ++j < m; ) {\n",
              "      for (var group = this[j], i = group.length - 1, next = group[i], node; --i >= 0; ) {\n",
              "        if (node = group[i]) {\n",
              "          if (next && next !== node.nextSibling) next.parentNode.insertBefore(node, next);\n",
              "          next = node;\n",
              "        }\n",
              "      }\n",
              "    }\n",
              "    return this;\n",
              "  };\n",
              "  d3_selectionPrototype.sort = function(comparator) {\n",
              "    comparator = d3_selection_sortComparator.apply(this, arguments);\n",
              "    for (var j = -1, m = this.length; ++j < m; ) this[j].sort(comparator);\n",
              "    return this.order();\n",
              "  };\n",
              "  function d3_selection_sortComparator(comparator) {\n",
              "    if (!arguments.length) comparator = d3_ascending;\n",
              "    return function(a, b) {\n",
              "      return a && b ? comparator(a.__data__, b.__data__) : !a - !b;\n",
              "    };\n",
              "  }\n",
              "  d3_selectionPrototype.each = function(callback) {\n",
              "    return d3_selection_each(this, function(node, i, j) {\n",
              "      callback.call(node, node.__data__, i, j);\n",
              "    });\n",
              "  };\n",
              "  function d3_selection_each(groups, callback) {\n",
              "    for (var j = 0, m = groups.length; j < m; j++) {\n",
              "      for (var group = groups[j], i = 0, n = group.length, node; i < n; i++) {\n",
              "        if (node = group[i]) callback(node, i, j);\n",
              "      }\n",
              "    }\n",
              "    return groups;\n",
              "  }\n",
              "  d3_selectionPrototype.call = function(callback) {\n",
              "    var args = d3_array(arguments);\n",
              "    callback.apply(args[0] = this, args);\n",
              "    return this;\n",
              "  };\n",
              "  d3_selectionPrototype.empty = function() {\n",
              "    return !this.node();\n",
              "  };\n",
              "  d3_selectionPrototype.node = function() {\n",
              "    for (var j = 0, m = this.length; j < m; j++) {\n",
              "      for (var group = this[j], i = 0, n = group.length; i < n; i++) {\n",
              "        var node = group[i];\n",
              "        if (node) return node;\n",
              "      }\n",
              "    }\n",
              "    return null;\n",
              "  };\n",
              "  d3_selectionPrototype.size = function() {\n",
              "    var n = 0;\n",
              "    d3_selection_each(this, function() {\n",
              "      ++n;\n",
              "    });\n",
              "    return n;\n",
              "  };\n",
              "  function d3_selection_enter(selection) {\n",
              "    d3_subclass(selection, d3_selection_enterPrototype);\n",
              "    return selection;\n",
              "  }\n",
              "  var d3_selection_enterPrototype = [];\n",
              "  d3.selection.enter = d3_selection_enter;\n",
              "  d3.selection.enter.prototype = d3_selection_enterPrototype;\n",
              "  d3_selection_enterPrototype.append = d3_selectionPrototype.append;\n",
              "  d3_selection_enterPrototype.empty = d3_selectionPrototype.empty;\n",
              "  d3_selection_enterPrototype.node = d3_selectionPrototype.node;\n",
              "  d3_selection_enterPrototype.call = d3_selectionPrototype.call;\n",
              "  d3_selection_enterPrototype.size = d3_selectionPrototype.size;\n",
              "  d3_selection_enterPrototype.select = function(selector) {\n",
              "    var subgroups = [], subgroup, subnode, upgroup, group, node;\n",
              "    for (var j = -1, m = this.length; ++j < m; ) {\n",
              "      upgroup = (group = this[j]).update;\n",
              "      subgroups.push(subgroup = []);\n",
              "      subgroup.parentNode = group.parentNode;\n",
              "      for (var i = -1, n = group.length; ++i < n; ) {\n",
              "        if (node = group[i]) {\n",
              "          subgroup.push(upgroup[i] = subnode = selector.call(group.parentNode, node.__data__, i, j));\n",
              "          subnode.__data__ = node.__data__;\n",
              "        } else {\n",
              "          subgroup.push(null);\n",
              "        }\n",
              "      }\n",
              "    }\n",
              "    return d3_selection(subgroups);\n",
              "  };\n",
              "  d3_selection_enterPrototype.insert = function(name, before) {\n",
              "    if (arguments.length < 2) before = d3_selection_enterInsertBefore(this);\n",
              "    return d3_selectionPrototype.insert.call(this, name, before);\n",
              "  };\n",
              "  function d3_selection_enterInsertBefore(enter) {\n",
              "    var i0, j0;\n",
              "    return function(d, i, j) {\n",
              "      var group = enter[j].update, n = group.length, node;\n",
              "      if (j != j0) j0 = j, i0 = 0;\n",
              "      if (i >= i0) i0 = i + 1;\n",
              "      while (!(node = group[i0]) && ++i0 < n) ;\n",
              "      return node;\n",
              "    };\n",
              "  }\n",
              "  d3.select = function(node) {\n",
              "    var group;\n",
              "    if (typeof node === \"string\") {\n",
              "      group = [ d3_select(node, d3_document) ];\n",
              "      group.parentNode = d3_document.documentElement;\n",
              "    } else {\n",
              "      group = [ node ];\n",
              "      group.parentNode = d3_documentElement(node);\n",
              "    }\n",
              "    return d3_selection([ group ]);\n",
              "  };\n",
              "  d3.selectAll = function(nodes) {\n",
              "    var group;\n",
              "    if (typeof nodes === \"string\") {\n",
              "      group = d3_array(d3_selectAll(nodes, d3_document));\n",
              "      group.parentNode = d3_document.documentElement;\n",
              "    } else {\n",
              "      group = d3_array(nodes);\n",
              "      group.parentNode = null;\n",
              "    }\n",
              "    return d3_selection([ group ]);\n",
              "  };\n",
              "  d3_selectionPrototype.on = function(type, listener, capture) {\n",
              "    var n = arguments.length;\n",
              "    if (n < 3) {\n",
              "      if (typeof type !== \"string\") {\n",
              "        if (n < 2) listener = false;\n",
              "        for (capture in type) this.each(d3_selection_on(capture, type[capture], listener));\n",
              "        return this;\n",
              "      }\n",
              "      if (n < 2) return (n = this.node()[\"__on\" + type]) && n._;\n",
              "      capture = false;\n",
              "    }\n",
              "    return this.each(d3_selection_on(type, listener, capture));\n",
              "  };\n",
              "  function d3_selection_on(type, listener, capture) {\n",
              "    var name = \"__on\" + type, i = type.indexOf(\".\"), wrap = d3_selection_onListener;\n",
              "    if (i > 0) type = type.slice(0, i);\n",
              "    var filter = d3_selection_onFilters.get(type);\n",
              "    if (filter) type = filter, wrap = d3_selection_onFilter;\n",
              "    function onRemove() {\n",
              "      var l = this[name];\n",
              "      if (l) {\n",
              "        this.removeEventListener(type, l, l.$);\n",
              "        delete this[name];\n",
              "      }\n",
              "    }\n",
              "    function onAdd() {\n",
              "      var l = wrap(listener, d3_array(arguments));\n",
              "      onRemove.call(this);\n",
              "      this.addEventListener(type, this[name] = l, l.$ = capture);\n",
              "      l._ = listener;\n",
              "    }\n",
              "    function removeAll() {\n",
              "      var re = new RegExp(\"^__on([^.]+)\" + d3.requote(type) + \"$\"), match;\n",
              "      for (var name in this) {\n",
              "        if (match = name.match(re)) {\n",
              "          var l = this[name];\n",
              "          this.removeEventListener(match[1], l, l.$);\n",
              "          delete this[name];\n",
              "        }\n",
              "      }\n",
              "    }\n",
              "    return i ? listener ? onAdd : onRemove : listener ? d3_noop : removeAll;\n",
              "  }\n",
              "  var d3_selection_onFilters = d3.map({\n",
              "    mouseenter: \"mouseover\",\n",
              "    mouseleave: \"mouseout\"\n",
              "  });\n",
              "  if (d3_document) {\n",
              "    d3_selection_onFilters.forEach(function(k) {\n",
              "      if (\"on\" + k in d3_document) d3_selection_onFilters.remove(k);\n",
              "    });\n",
              "  }\n",
              "  function d3_selection_onListener(listener, argumentz) {\n",
              "    return function(e) {\n",
              "      var o = d3.event;\n",
              "      d3.event = e;\n",
              "      argumentz[0] = this.__data__;\n",
              "      try {\n",
              "        listener.apply(this, argumentz);\n",
              "      } finally {\n",
              "        d3.event = o;\n",
              "      }\n",
              "    };\n",
              "  }\n",
              "  function d3_selection_onFilter(listener, argumentz) {\n",
              "    var l = d3_selection_onListener(listener, argumentz);\n",
              "    return function(e) {\n",
              "      var target = this, related = e.relatedTarget;\n",
              "      if (!related || related !== target && !(related.compareDocumentPosition(target) & 8)) {\n",
              "        l.call(target, e);\n",
              "      }\n",
              "    };\n",
              "  }\n",
              "  var d3_event_dragSelect, d3_event_dragId = 0;\n",
              "  function d3_event_dragSuppress(node) {\n",
              "    var name = \".dragsuppress-\" + ++d3_event_dragId, click = \"click\" + name, w = d3.select(d3_window(node)).on(\"touchmove\" + name, d3_eventPreventDefault).on(\"dragstart\" + name, d3_eventPreventDefault).on(\"selectstart\" + name, d3_eventPreventDefault);\n",
              "    if (d3_event_dragSelect == null) {\n",
              "      d3_event_dragSelect = \"onselectstart\" in node ? false : d3_vendorSymbol(node.style, \"userSelect\");\n",
              "    }\n",
              "    if (d3_event_dragSelect) {\n",
              "      var style = d3_documentElement(node).style, select = style[d3_event_dragSelect];\n",
              "      style[d3_event_dragSelect] = \"none\";\n",
              "    }\n",
              "    return function(suppressClick) {\n",
              "      w.on(name, null);\n",
              "      if (d3_event_dragSelect) style[d3_event_dragSelect] = select;\n",
              "      if (suppressClick) {\n",
              "        var off = function() {\n",
              "          w.on(click, null);\n",
              "        };\n",
              "        w.on(click, function() {\n",
              "          d3_eventPreventDefault();\n",
              "          off();\n",
              "        }, true);\n",
              "        setTimeout(off, 0);\n",
              "      }\n",
              "    };\n",
              "  }\n",
              "  d3.mouse = function(container) {\n",
              "    return d3_mousePoint(container, d3_eventSource());\n",
              "  };\n",
              "  var d3_mouse_bug44083 = this.navigator && /WebKit/.test(this.navigator.userAgent) ? -1 : 0;\n",
              "  function d3_mousePoint(container, e) {\n",
              "    if (e.changedTouches) e = e.changedTouches[0];\n",
              "    var svg = container.ownerSVGElement || container;\n",
              "    if (svg.createSVGPoint) {\n",
              "      var point = svg.createSVGPoint();\n",
              "      if (d3_mouse_bug44083 < 0) {\n",
              "        var window = d3_window(container);\n",
              "        if (window.scrollX || window.scrollY) {\n",
              "          svg = d3.select(\"body\").append(\"svg\").style({\n",
              "            position: \"absolute\",\n",
              "            top: 0,\n",
              "            left: 0,\n",
              "            margin: 0,\n",
              "            padding: 0,\n",
              "            border: \"none\"\n",
              "          }, \"important\");\n",
              "          var ctm = svg[0][0].getScreenCTM();\n",
              "          d3_mouse_bug44083 = !(ctm.f || ctm.e);\n",
              "          svg.remove();\n",
              "        }\n",
              "      }\n",
              "      if (d3_mouse_bug44083) point.x = e.pageX, point.y = e.pageY; else point.x = e.clientX, \n",
              "      point.y = e.clientY;\n",
              "      point = point.matrixTransform(container.getScreenCTM().inverse());\n",
              "      return [ point.x, point.y ];\n",
              "    }\n",
              "    var rect = container.getBoundingClientRect();\n",
              "    return [ e.clientX - rect.left - container.clientLeft, e.clientY - rect.top - container.clientTop ];\n",
              "  }\n",
              "  d3.touch = function(container, touches, identifier) {\n",
              "    if (arguments.length < 3) identifier = touches, touches = d3_eventSource().changedTouches;\n",
              "    if (touches) for (var i = 0, n = touches.length, touch; i < n; ++i) {\n",
              "      if ((touch = touches[i]).identifier === identifier) {\n",
              "        return d3_mousePoint(container, touch);\n",
              "      }\n",
              "    }\n",
              "  };\n",
              "  d3.behavior.drag = function() {\n",
              "    var event = d3_eventDispatch(drag, \"drag\", \"dragstart\", \"dragend\"), origin = null, mousedown = dragstart(d3_noop, d3.mouse, d3_window, \"mousemove\", \"mouseup\"), touchstart = dragstart(d3_behavior_dragTouchId, d3.touch, d3_identity, \"touchmove\", \"touchend\");\n",
              "    function drag() {\n",
              "      this.on(\"mousedown.drag\", mousedown).on(\"touchstart.drag\", touchstart);\n",
              "    }\n",
              "    function dragstart(id, position, subject, move, end) {\n",
              "      return function() {\n",
              "        var that = this, target = d3.event.target.correspondingElement || d3.event.target, parent = that.parentNode, dispatch = event.of(that, arguments), dragged = 0, dragId = id(), dragName = \".drag\" + (dragId == null ? \"\" : \"-\" + dragId), dragOffset, dragSubject = d3.select(subject(target)).on(move + dragName, moved).on(end + dragName, ended), dragRestore = d3_event_dragSuppress(target), position0 = position(parent, dragId);\n",
              "        if (origin) {\n",
              "          dragOffset = origin.apply(that, arguments);\n",
              "          dragOffset = [ dragOffset.x - position0[0], dragOffset.y - position0[1] ];\n",
              "        } else {\n",
              "          dragOffset = [ 0, 0 ];\n",
              "        }\n",
              "        dispatch({\n",
              "          type: \"dragstart\"\n",
              "        });\n",
              "        function moved() {\n",
              "          var position1 = position(parent, dragId), dx, dy;\n",
              "          if (!position1) return;\n",
              "          dx = position1[0] - position0[0];\n",
              "          dy = position1[1] - position0[1];\n",
              "          dragged |= dx | dy;\n",
              "          position0 = position1;\n",
              "          dispatch({\n",
              "            type: \"drag\",\n",
              "            x: position1[0] + dragOffset[0],\n",
              "            y: position1[1] + dragOffset[1],\n",
              "            dx: dx,\n",
              "            dy: dy\n",
              "          });\n",
              "        }\n",
              "        function ended() {\n",
              "          if (!position(parent, dragId)) return;\n",
              "          dragSubject.on(move + dragName, null).on(end + dragName, null);\n",
              "          dragRestore(dragged);\n",
              "          dispatch({\n",
              "            type: \"dragend\"\n",
              "          });\n",
              "        }\n",
              "      };\n",
              "    }\n",
              "    drag.origin = function(x) {\n",
              "      if (!arguments.length) return origin;\n",
              "      origin = x;\n",
              "      return drag;\n",
              "    };\n",
              "    return d3.rebind(drag, event, \"on\");\n",
              "  };\n",
              "  function d3_behavior_dragTouchId() {\n",
              "    return d3.event.changedTouches[0].identifier;\n",
              "  }\n",
              "  d3.touches = function(container, touches) {\n",
              "    if (arguments.length < 2) touches = d3_eventSource().touches;\n",
              "    return touches ? d3_array(touches).map(function(touch) {\n",
              "      var point = d3_mousePoint(container, touch);\n",
              "      point.identifier = touch.identifier;\n",
              "      return point;\n",
              "    }) : [];\n",
              "  };\n",
              "  var ε = 1e-6, ε2 = ε * ε, π = Math.PI, τ = 2 * π, τε = τ - ε, halfπ = π / 2, d3_radians = π / 180, d3_degrees = 180 / π;\n",
              "  function d3_sgn(x) {\n",
              "    return x > 0 ? 1 : x < 0 ? -1 : 0;\n",
              "  }\n",
              "  function d3_cross2d(a, b, c) {\n",
              "    return (b[0] - a[0]) * (c[1] - a[1]) - (b[1] - a[1]) * (c[0] - a[0]);\n",
              "  }\n",
              "  function d3_acos(x) {\n",
              "    return x > 1 ? 0 : x < -1 ? π : Math.acos(x);\n",
              "  }\n",
              "  function d3_asin(x) {\n",
              "    return x > 1 ? halfπ : x < -1 ? -halfπ : Math.asin(x);\n",
              "  }\n",
              "  function d3_sinh(x) {\n",
              "    return ((x = Math.exp(x)) - 1 / x) / 2;\n",
              "  }\n",
              "  function d3_cosh(x) {\n",
              "    return ((x = Math.exp(x)) + 1 / x) / 2;\n",
              "  }\n",
              "  function d3_tanh(x) {\n",
              "    return ((x = Math.exp(2 * x)) - 1) / (x + 1);\n",
              "  }\n",
              "  function d3_haversin(x) {\n",
              "    return (x = Math.sin(x / 2)) * x;\n",
              "  }\n",
              "  var ρ = Math.SQRT2, ρ2 = 2, ρ4 = 4;\n",
              "  d3.interpolateZoom = function(p0, p1) {\n",
              "    var ux0 = p0[0], uy0 = p0[1], w0 = p0[2], ux1 = p1[0], uy1 = p1[1], w1 = p1[2], dx = ux1 - ux0, dy = uy1 - uy0, d2 = dx * dx + dy * dy, i, S;\n",
              "    if (d2 < ε2) {\n",
              "      S = Math.log(w1 / w0) / ρ;\n",
              "      i = function(t) {\n",
              "        return [ ux0 + t * dx, uy0 + t * dy, w0 * Math.exp(ρ * t * S) ];\n",
              "      };\n",
              "    } else {\n",
              "      var d1 = Math.sqrt(d2), b0 = (w1 * w1 - w0 * w0 + ρ4 * d2) / (2 * w0 * ρ2 * d1), b1 = (w1 * w1 - w0 * w0 - ρ4 * d2) / (2 * w1 * ρ2 * d1), r0 = Math.log(Math.sqrt(b0 * b0 + 1) - b0), r1 = Math.log(Math.sqrt(b1 * b1 + 1) - b1);\n",
              "      S = (r1 - r0) / ρ;\n",
              "      i = function(t) {\n",
              "        var s = t * S, coshr0 = d3_cosh(r0), u = w0 / (ρ2 * d1) * (coshr0 * d3_tanh(ρ * s + r0) - d3_sinh(r0));\n",
              "        return [ ux0 + u * dx, uy0 + u * dy, w0 * coshr0 / d3_cosh(ρ * s + r0) ];\n",
              "      };\n",
              "    }\n",
              "    i.duration = S * 1e3;\n",
              "    return i;\n",
              "  };\n",
              "  d3.behavior.zoom = function() {\n",
              "    var view = {\n",
              "      x: 0,\n",
              "      y: 0,\n",
              "      k: 1\n",
              "    }, translate0, center0, center, size = [ 960, 500 ], scaleExtent = d3_behavior_zoomInfinity, duration = 250, zooming = 0, mousedown = \"mousedown.zoom\", mousemove = \"mousemove.zoom\", mouseup = \"mouseup.zoom\", mousewheelTimer, touchstart = \"touchstart.zoom\", touchtime, event = d3_eventDispatch(zoom, \"zoomstart\", \"zoom\", \"zoomend\"), x0, x1, y0, y1;\n",
              "    if (!d3_behavior_zoomWheel) {\n",
              "      d3_behavior_zoomWheel = \"onwheel\" in d3_document ? (d3_behavior_zoomDelta = function() {\n",
              "        return -d3.event.deltaY * (d3.event.deltaMode ? 120 : 1);\n",
              "      }, \"wheel\") : \"onmousewheel\" in d3_document ? (d3_behavior_zoomDelta = function() {\n",
              "        return d3.event.wheelDelta;\n",
              "      }, \"mousewheel\") : (d3_behavior_zoomDelta = function() {\n",
              "        return -d3.event.detail;\n",
              "      }, \"MozMousePixelScroll\");\n",
              "    }\n",
              "    function zoom(g) {\n",
              "      g.on(mousedown, mousedowned).on(d3_behavior_zoomWheel + \".zoom\", mousewheeled).on(\"dblclick.zoom\", dblclicked).on(touchstart, touchstarted);\n",
              "    }\n",
              "    zoom.event = function(g) {\n",
              "      g.each(function() {\n",
              "        var dispatch = event.of(this, arguments), view1 = view;\n",
              "        if (d3_transitionInheritId) {\n",
              "          d3.select(this).transition().each(\"start.zoom\", function() {\n",
              "            view = this.__chart__ || {\n",
              "              x: 0,\n",
              "              y: 0,\n",
              "              k: 1\n",
              "            };\n",
              "            zoomstarted(dispatch);\n",
              "          }).tween(\"zoom:zoom\", function() {\n",
              "            var dx = size[0], dy = size[1], cx = center0 ? center0[0] : dx / 2, cy = center0 ? center0[1] : dy / 2, i = d3.interpolateZoom([ (cx - view.x) / view.k, (cy - view.y) / view.k, dx / view.k ], [ (cx - view1.x) / view1.k, (cy - view1.y) / view1.k, dx / view1.k ]);\n",
              "            return function(t) {\n",
              "              var l = i(t), k = dx / l[2];\n",
              "              this.__chart__ = view = {\n",
              "                x: cx - l[0] * k,\n",
              "                y: cy - l[1] * k,\n",
              "                k: k\n",
              "              };\n",
              "              zoomed(dispatch);\n",
              "            };\n",
              "          }).each(\"interrupt.zoom\", function() {\n",
              "            zoomended(dispatch);\n",
              "          }).each(\"end.zoom\", function() {\n",
              "            zoomended(dispatch);\n",
              "          });\n",
              "        } else {\n",
              "          this.__chart__ = view;\n",
              "          zoomstarted(dispatch);\n",
              "          zoomed(dispatch);\n",
              "          zoomended(dispatch);\n",
              "        }\n",
              "      });\n",
              "    };\n",
              "    zoom.translate = function(_) {\n",
              "      if (!arguments.length) return [ view.x, view.y ];\n",
              "      view = {\n",
              "        x: +_[0],\n",
              "        y: +_[1],\n",
              "        k: view.k\n",
              "      };\n",
              "      rescale();\n",
              "      return zoom;\n",
              "    };\n",
              "    zoom.scale = function(_) {\n",
              "      if (!arguments.length) return view.k;\n",
              "      view = {\n",
              "        x: view.x,\n",
              "        y: view.y,\n",
              "        k: null\n",
              "      };\n",
              "      scaleTo(+_);\n",
              "      rescale();\n",
              "      return zoom;\n",
              "    };\n",
              "    zoom.scaleExtent = function(_) {\n",
              "      if (!arguments.length) return scaleExtent;\n",
              "      scaleExtent = _ == null ? d3_behavior_zoomInfinity : [ +_[0], +_[1] ];\n",
              "      return zoom;\n",
              "    };\n",
              "    zoom.center = function(_) {\n",
              "      if (!arguments.length) return center;\n",
              "      center = _ && [ +_[0], +_[1] ];\n",
              "      return zoom;\n",
              "    };\n",
              "    zoom.size = function(_) {\n",
              "      if (!arguments.length) return size;\n",
              "      size = _ && [ +_[0], +_[1] ];\n",
              "      return zoom;\n",
              "    };\n",
              "    zoom.duration = function(_) {\n",
              "      if (!arguments.length) return duration;\n",
              "      duration = +_;\n",
              "      return zoom;\n",
              "    };\n",
              "    zoom.x = function(z) {\n",
              "      if (!arguments.length) return x1;\n",
              "      x1 = z;\n",
              "      x0 = z.copy();\n",
              "      view = {\n",
              "        x: 0,\n",
              "        y: 0,\n",
              "        k: 1\n",
              "      };\n",
              "      return zoom;\n",
              "    };\n",
              "    zoom.y = function(z) {\n",
              "      if (!arguments.length) return y1;\n",
              "      y1 = z;\n",
              "      y0 = z.copy();\n",
              "      view = {\n",
              "        x: 0,\n",
              "        y: 0,\n",
              "        k: 1\n",
              "      };\n",
              "      return zoom;\n",
              "    };\n",
              "    function location(p) {\n",
              "      return [ (p[0] - view.x) / view.k, (p[1] - view.y) / view.k ];\n",
              "    }\n",
              "    function point(l) {\n",
              "      return [ l[0] * view.k + view.x, l[1] * view.k + view.y ];\n",
              "    }\n",
              "    function scaleTo(s) {\n",
              "      view.k = Math.max(scaleExtent[0], Math.min(scaleExtent[1], s));\n",
              "    }\n",
              "    function translateTo(p, l) {\n",
              "      l = point(l);\n",
              "      view.x += p[0] - l[0];\n",
              "      view.y += p[1] - l[1];\n",
              "    }\n",
              "    function zoomTo(that, p, l, k) {\n",
              "      that.__chart__ = {\n",
              "        x: view.x,\n",
              "        y: view.y,\n",
              "        k: view.k\n",
              "      };\n",
              "      scaleTo(Math.pow(2, k));\n",
              "      translateTo(center0 = p, l);\n",
              "      that = d3.select(that);\n",
              "      if (duration > 0) that = that.transition().duration(duration);\n",
              "      that.call(zoom.event);\n",
              "    }\n",
              "    function rescale() {\n",
              "      if (x1) x1.domain(x0.range().map(function(x) {\n",
              "        return (x - view.x) / view.k;\n",
              "      }).map(x0.invert));\n",
              "      if (y1) y1.domain(y0.range().map(function(y) {\n",
              "        return (y - view.y) / view.k;\n",
              "      }).map(y0.invert));\n",
              "    }\n",
              "    function zoomstarted(dispatch) {\n",
              "      if (!zooming++) dispatch({\n",
              "        type: \"zoomstart\"\n",
              "      });\n",
              "    }\n",
              "    function zoomed(dispatch) {\n",
              "      rescale();\n",
              "      dispatch({\n",
              "        type: \"zoom\",\n",
              "        scale: view.k,\n",
              "        translate: [ view.x, view.y ]\n",
              "      });\n",
              "    }\n",
              "    function zoomended(dispatch) {\n",
              "      if (!--zooming) dispatch({\n",
              "        type: \"zoomend\"\n",
              "      }), center0 = null;\n",
              "    }\n",
              "    function mousedowned() {\n",
              "      var that = this, dispatch = event.of(that, arguments), dragged = 0, subject = d3.select(d3_window(that)).on(mousemove, moved).on(mouseup, ended), location0 = location(d3.mouse(that)), dragRestore = d3_event_dragSuppress(that);\n",
              "      d3_selection_interrupt.call(that);\n",
              "      zoomstarted(dispatch);\n",
              "      function moved() {\n",
              "        dragged = 1;\n",
              "        translateTo(d3.mouse(that), location0);\n",
              "        zoomed(dispatch);\n",
              "      }\n",
              "      function ended() {\n",
              "        subject.on(mousemove, null).on(mouseup, null);\n",
              "        dragRestore(dragged);\n",
              "        zoomended(dispatch);\n",
              "      }\n",
              "    }\n",
              "    function touchstarted() {\n",
              "      var that = this, dispatch = event.of(that, arguments), locations0 = {}, distance0 = 0, scale0, zoomName = \".zoom-\" + d3.event.changedTouches[0].identifier, touchmove = \"touchmove\" + zoomName, touchend = \"touchend\" + zoomName, targets = [], subject = d3.select(that), dragRestore = d3_event_dragSuppress(that);\n",
              "      started();\n",
              "      zoomstarted(dispatch);\n",
              "      subject.on(mousedown, null).on(touchstart, started);\n",
              "      function relocate() {\n",
              "        var touches = d3.touches(that);\n",
              "        scale0 = view.k;\n",
              "        touches.forEach(function(t) {\n",
              "          if (t.identifier in locations0) locations0[t.identifier] = location(t);\n",
              "        });\n",
              "        return touches;\n",
              "      }\n",
              "      function started() {\n",
              "        var target = d3.event.target;\n",
              "        d3.select(target).on(touchmove, moved).on(touchend, ended);\n",
              "        targets.push(target);\n",
              "        var changed = d3.event.changedTouches;\n",
              "        for (var i = 0, n = changed.length; i < n; ++i) {\n",
              "          locations0[changed[i].identifier] = null;\n",
              "        }\n",
              "        var touches = relocate(), now = Date.now();\n",
              "        if (touches.length === 1) {\n",
              "          if (now - touchtime < 500) {\n",
              "            var p = touches[0];\n",
              "            zoomTo(that, p, locations0[p.identifier], Math.floor(Math.log(view.k) / Math.LN2) + 1);\n",
              "            d3_eventPreventDefault();\n",
              "          }\n",
              "          touchtime = now;\n",
              "        } else if (touches.length > 1) {\n",
              "          var p = touches[0], q = touches[1], dx = p[0] - q[0], dy = p[1] - q[1];\n",
              "          distance0 = dx * dx + dy * dy;\n",
              "        }\n",
              "      }\n",
              "      function moved() {\n",
              "        var touches = d3.touches(that), p0, l0, p1, l1;\n",
              "        d3_selection_interrupt.call(that);\n",
              "        for (var i = 0, n = touches.length; i < n; ++i, l1 = null) {\n",
              "          p1 = touches[i];\n",
              "          if (l1 = locations0[p1.identifier]) {\n",
              "            if (l0) break;\n",
              "            p0 = p1, l0 = l1;\n",
              "          }\n",
              "        }\n",
              "        if (l1) {\n",
              "          var distance1 = (distance1 = p1[0] - p0[0]) * distance1 + (distance1 = p1[1] - p0[1]) * distance1, scale1 = distance0 && Math.sqrt(distance1 / distance0);\n",
              "          p0 = [ (p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2 ];\n",
              "          l0 = [ (l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2 ];\n",
              "          scaleTo(scale1 * scale0);\n",
              "        }\n",
              "        touchtime = null;\n",
              "        translateTo(p0, l0);\n",
              "        zoomed(dispatch);\n",
              "      }\n",
              "      function ended() {\n",
              "        if (d3.event.touches.length) {\n",
              "          var changed = d3.event.changedTouches;\n",
              "          for (var i = 0, n = changed.length; i < n; ++i) {\n",
              "            delete locations0[changed[i].identifier];\n",
              "          }\n",
              "          for (var identifier in locations0) {\n",
              "            return void relocate();\n",
              "          }\n",
              "        }\n",
              "        d3.selectAll(targets).on(zoomName, null);\n",
              "        subject.on(mousedown, mousedowned).on(touchstart, touchstarted);\n",
              "        dragRestore();\n",
              "        zoomended(dispatch);\n",
              "      }\n",
              "    }\n",
              "    function mousewheeled() {\n",
              "      var dispatch = event.of(this, arguments);\n",
              "      if (mousewheelTimer) clearTimeout(mousewheelTimer); else d3_selection_interrupt.call(this), \n",
              "      translate0 = location(center0 = center || d3.mouse(this)), zoomstarted(dispatch);\n",
              "      mousewheelTimer = setTimeout(function() {\n",
              "        mousewheelTimer = null;\n",
              "        zoomended(dispatch);\n",
              "      }, 50);\n",
              "      d3_eventPreventDefault();\n",
              "      scaleTo(Math.pow(2, d3_behavior_zoomDelta() * .002) * view.k);\n",
              "      translateTo(center0, translate0);\n",
              "      zoomed(dispatch);\n",
              "    }\n",
              "    function dblclicked() {\n",
              "      var p = d3.mouse(this), k = Math.log(view.k) / Math.LN2;\n",
              "      zoomTo(this, p, location(p), d3.event.shiftKey ? Math.ceil(k) - 1 : Math.floor(k) + 1);\n",
              "    }\n",
              "    return d3.rebind(zoom, event, \"on\");\n",
              "  };\n",
              "  var d3_behavior_zoomInfinity = [ 0, Infinity ], d3_behavior_zoomDelta, d3_behavior_zoomWheel;\n",
              "  d3.color = d3_color;\n",
              "  function d3_color() {}\n",
              "  d3_color.prototype.toString = function() {\n",
              "    return this.rgb() + \"\";\n",
              "  };\n",
              "  d3.hsl = d3_hsl;\n",
              "  function d3_hsl(h, s, l) {\n",
              "    return this instanceof d3_hsl ? void (this.h = +h, this.s = +s, this.l = +l) : arguments.length < 2 ? h instanceof d3_hsl ? new d3_hsl(h.h, h.s, h.l) : d3_rgb_parse(\"\" + h, d3_rgb_hsl, d3_hsl) : new d3_hsl(h, s, l);\n",
              "  }\n",
              "  var d3_hslPrototype = d3_hsl.prototype = new d3_color();\n",
              "  d3_hslPrototype.brighter = function(k) {\n",
              "    k = Math.pow(.7, arguments.length ? k : 1);\n",
              "    return new d3_hsl(this.h, this.s, this.l / k);\n",
              "  };\n",
              "  d3_hslPrototype.darker = function(k) {\n",
              "    k = Math.pow(.7, arguments.length ? k : 1);\n",
              "    return new d3_hsl(this.h, this.s, k * this.l);\n",
              "  };\n",
              "  d3_hslPrototype.rgb = function() {\n",
              "    return d3_hsl_rgb(this.h, this.s, this.l);\n",
              "  };\n",
              "  function d3_hsl_rgb(h, s, l) {\n",
              "    var m1, m2;\n",
              "    h = isNaN(h) ? 0 : (h %= 360) < 0 ? h + 360 : h;\n",
              "    s = isNaN(s) ? 0 : s < 0 ? 0 : s > 1 ? 1 : s;\n",
              "    l = l < 0 ? 0 : l > 1 ? 1 : l;\n",
              "    m2 = l <= .5 ? l * (1 + s) : l + s - l * s;\n",
              "    m1 = 2 * l - m2;\n",
              "    function v(h) {\n",
              "      if (h > 360) h -= 360; else if (h < 0) h += 360;\n",
              "      if (h < 60) return m1 + (m2 - m1) * h / 60;\n",
              "      if (h < 180) return m2;\n",
              "      if (h < 240) return m1 + (m2 - m1) * (240 - h) / 60;\n",
              "      return m1;\n",
              "    }\n",
              "    function vv(h) {\n",
              "      return Math.round(v(h) * 255);\n",
              "    }\n",
              "    return new d3_rgb(vv(h + 120), vv(h), vv(h - 120));\n",
              "  }\n",
              "  d3.hcl = d3_hcl;\n",
              "  function d3_hcl(h, c, l) {\n",
              "    return this instanceof d3_hcl ? void (this.h = +h, this.c = +c, this.l = +l) : arguments.length < 2 ? h instanceof d3_hcl ? new d3_hcl(h.h, h.c, h.l) : h instanceof d3_lab ? d3_lab_hcl(h.l, h.a, h.b) : d3_lab_hcl((h = d3_rgb_lab((h = d3.rgb(h)).r, h.g, h.b)).l, h.a, h.b) : new d3_hcl(h, c, l);\n",
              "  }\n",
              "  var d3_hclPrototype = d3_hcl.prototype = new d3_color();\n",
              "  d3_hclPrototype.brighter = function(k) {\n",
              "    return new d3_hcl(this.h, this.c, Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1)));\n",
              "  };\n",
              "  d3_hclPrototype.darker = function(k) {\n",
              "    return new d3_hcl(this.h, this.c, Math.max(0, this.l - d3_lab_K * (arguments.length ? k : 1)));\n",
              "  };\n",
              "  d3_hclPrototype.rgb = function() {\n",
              "    return d3_hcl_lab(this.h, this.c, this.l).rgb();\n",
              "  };\n",
              "  function d3_hcl_lab(h, c, l) {\n",
              "    if (isNaN(h)) h = 0;\n",
              "    if (isNaN(c)) c = 0;\n",
              "    return new d3_lab(l, Math.cos(h *= d3_radians) * c, Math.sin(h) * c);\n",
              "  }\n",
              "  d3.lab = d3_lab;\n",
              "  function d3_lab(l, a, b) {\n",
              "    return this instanceof d3_lab ? void (this.l = +l, this.a = +a, this.b = +b) : arguments.length < 2 ? l instanceof d3_lab ? new d3_lab(l.l, l.a, l.b) : l instanceof d3_hcl ? d3_hcl_lab(l.h, l.c, l.l) : d3_rgb_lab((l = d3_rgb(l)).r, l.g, l.b) : new d3_lab(l, a, b);\n",
              "  }\n",
              "  var d3_lab_K = 18;\n",
              "  var d3_lab_X = .95047, d3_lab_Y = 1, d3_lab_Z = 1.08883;\n",
              "  var d3_labPrototype = d3_lab.prototype = new d3_color();\n",
              "  d3_labPrototype.brighter = function(k) {\n",
              "    return new d3_lab(Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1)), this.a, this.b);\n",
              "  };\n",
              "  d3_labPrototype.darker = function(k) {\n",
              "    return new d3_lab(Math.max(0, this.l - d3_lab_K * (arguments.length ? k : 1)), this.a, this.b);\n",
              "  };\n",
              "  d3_labPrototype.rgb = function() {\n",
              "    return d3_lab_rgb(this.l, this.a, this.b);\n",
              "  };\n",
              "  function d3_lab_rgb(l, a, b) {\n",
              "    var y = (l + 16) / 116, x = y + a / 500, z = y - b / 200;\n",
              "    x = d3_lab_xyz(x) * d3_lab_X;\n",
              "    y = d3_lab_xyz(y) * d3_lab_Y;\n",
              "    z = d3_lab_xyz(z) * d3_lab_Z;\n",
              "    return new d3_rgb(d3_xyz_rgb(3.2404542 * x - 1.5371385 * y - .4985314 * z), d3_xyz_rgb(-.969266 * x + 1.8760108 * y + .041556 * z), d3_xyz_rgb(.0556434 * x - .2040259 * y + 1.0572252 * z));\n",
              "  }\n",
              "  function d3_lab_hcl(l, a, b) {\n",
              "    return l > 0 ? new d3_hcl(Math.atan2(b, a) * d3_degrees, Math.sqrt(a * a + b * b), l) : new d3_hcl(NaN, NaN, l);\n",
              "  }\n",
              "  function d3_lab_xyz(x) {\n",
              "    return x > .206893034 ? x * x * x : (x - 4 / 29) / 7.787037;\n",
              "  }\n",
              "  function d3_xyz_lab(x) {\n",
              "    return x > .008856 ? Math.pow(x, 1 / 3) : 7.787037 * x + 4 / 29;\n",
              "  }\n",
              "  function d3_xyz_rgb(r) {\n",
              "    return Math.round(255 * (r <= .00304 ? 12.92 * r : 1.055 * Math.pow(r, 1 / 2.4) - .055));\n",
              "  }\n",
              "  d3.rgb = d3_rgb;\n",
              "  function d3_rgb(r, g, b) {\n",
              "    return this instanceof d3_rgb ? void (this.r = ~~r, this.g = ~~g, this.b = ~~b) : arguments.length < 2 ? r instanceof d3_rgb ? new d3_rgb(r.r, r.g, r.b) : d3_rgb_parse(\"\" + r, d3_rgb, d3_hsl_rgb) : new d3_rgb(r, g, b);\n",
              "  }\n",
              "  function d3_rgbNumber(value) {\n",
              "    return new d3_rgb(value >> 16, value >> 8 & 255, value & 255);\n",
              "  }\n",
              "  function d3_rgbString(value) {\n",
              "    return d3_rgbNumber(value) + \"\";\n",
              "  }\n",
              "  var d3_rgbPrototype = d3_rgb.prototype = new d3_color();\n",
              "  d3_rgbPrototype.brighter = function(k) {\n",
              "    k = Math.pow(.7, arguments.length ? k : 1);\n",
              "    var r = this.r, g = this.g, b = this.b, i = 30;\n",
              "    if (!r && !g && !b) return new d3_rgb(i, i, i);\n",
              "    if (r && r < i) r = i;\n",
              "    if (g && g < i) g = i;\n",
              "    if (b && b < i) b = i;\n",
              "    return new d3_rgb(Math.min(255, r / k), Math.min(255, g / k), Math.min(255, b / k));\n",
              "  };\n",
              "  d3_rgbPrototype.darker = function(k) {\n",
              "    k = Math.pow(.7, arguments.length ? k : 1);\n",
              "    return new d3_rgb(k * this.r, k * this.g, k * this.b);\n",
              "  };\n",
              "  d3_rgbPrototype.hsl = function() {\n",
              "    return d3_rgb_hsl(this.r, this.g, this.b);\n",
              "  };\n",
              "  d3_rgbPrototype.toString = function() {\n",
              "    return \"#\" + d3_rgb_hex(this.r) + d3_rgb_hex(this.g) + d3_rgb_hex(this.b);\n",
              "  };\n",
              "  function d3_rgb_hex(v) {\n",
              "    return v < 16 ? \"0\" + Math.max(0, v).toString(16) : Math.min(255, v).toString(16);\n",
              "  }\n",
              "  function d3_rgb_parse(format, rgb, hsl) {\n",
              "    var r = 0, g = 0, b = 0, m1, m2, color;\n",
              "    m1 = /([a-z]+)\\((.*)\\)/.exec(format = format.toLowerCase());\n",
              "    if (m1) {\n",
              "      m2 = m1[2].split(\",\");\n",
              "      switch (m1[1]) {\n",
              "       case \"hsl\":\n",
              "        {\n",
              "          return hsl(parseFloat(m2[0]), parseFloat(m2[1]) / 100, parseFloat(m2[2]) / 100);\n",
              "        }\n",
              "\n",
              "       case \"rgb\":\n",
              "        {\n",
              "          return rgb(d3_rgb_parseNumber(m2[0]), d3_rgb_parseNumber(m2[1]), d3_rgb_parseNumber(m2[2]));\n",
              "        }\n",
              "      }\n",
              "    }\n",
              "    if (color = d3_rgb_names.get(format)) {\n",
              "      return rgb(color.r, color.g, color.b);\n",
              "    }\n",
              "    if (format != null && format.charAt(0) === \"#\" && !isNaN(color = parseInt(format.slice(1), 16))) {\n",
              "      if (format.length === 4) {\n",
              "        r = (color & 3840) >> 4;\n",
              "        r = r >> 4 | r;\n",
              "        g = color & 240;\n",
              "        g = g >> 4 | g;\n",
              "        b = color & 15;\n",
              "        b = b << 4 | b;\n",
              "      } else if (format.length === 7) {\n",
              "        r = (color & 16711680) >> 16;\n",
              "        g = (color & 65280) >> 8;\n",
              "        b = color & 255;\n",
              "      }\n",
              "    }\n",
              "    return rgb(r, g, b);\n",
              "  }\n",
              "  function d3_rgb_hsl(r, g, b) {\n",
              "    var min = Math.min(r /= 255, g /= 255, b /= 255), max = Math.max(r, g, b), d = max - min, h, s, l = (max + min) / 2;\n",
              "    if (d) {\n",
              "      s = l < .5 ? d / (max + min) : d / (2 - max - min);\n",
              "      if (r == max) h = (g - b) / d + (g < b ? 6 : 0); else if (g == max) h = (b - r) / d + 2; else h = (r - g) / d + 4;\n",
              "      h *= 60;\n",
              "    } else {\n",
              "      h = NaN;\n",
              "      s = l > 0 && l < 1 ? 0 : h;\n",
              "    }\n",
              "    return new d3_hsl(h, s, l);\n",
              "  }\n",
              "  function d3_rgb_lab(r, g, b) {\n",
              "    r = d3_rgb_xyz(r);\n",
              "    g = d3_rgb_xyz(g);\n",
              "    b = d3_rgb_xyz(b);\n",
              "    var x = d3_xyz_lab((.4124564 * r + .3575761 * g + .1804375 * b) / d3_lab_X), y = d3_xyz_lab((.2126729 * r + .7151522 * g + .072175 * b) / d3_lab_Y), z = d3_xyz_lab((.0193339 * r + .119192 * g + .9503041 * b) / d3_lab_Z);\n",
              "    return d3_lab(116 * y - 16, 500 * (x - y), 200 * (y - z));\n",
              "  }\n",
              "  function d3_rgb_xyz(r) {\n",
              "    return (r /= 255) <= .04045 ? r / 12.92 : Math.pow((r + .055) / 1.055, 2.4);\n",
              "  }\n",
              "  function d3_rgb_parseNumber(c) {\n",
              "    var f = parseFloat(c);\n",
              "    return c.charAt(c.length - 1) === \"%\" ? Math.round(f * 2.55) : f;\n",
              "  }\n",
              "  var d3_rgb_names = d3.map({\n",
              "    aliceblue: 15792383,\n",
              "    antiquewhite: 16444375,\n",
              "    aqua: 65535,\n",
              "    aquamarine: 8388564,\n",
              "    azure: 15794175,\n",
              "    beige: 16119260,\n",
              "    bisque: 16770244,\n",
              "    black: 0,\n",
              "    blanchedalmond: 16772045,\n",
              "    blue: 255,\n",
              "    blueviolet: 9055202,\n",
              "    brown: 10824234,\n",
              "    burlywood: 14596231,\n",
              "    cadetblue: 6266528,\n",
              "    chartreuse: 8388352,\n",
              "    chocolate: 13789470,\n",
              "    coral: 16744272,\n",
              "    cornflowerblue: 6591981,\n",
              "    cornsilk: 16775388,\n",
              "    crimson: 14423100,\n",
              "    cyan: 65535,\n",
              "    darkblue: 139,\n",
              "    darkcyan: 35723,\n",
              "    darkgoldenrod: 12092939,\n",
              "    darkgray: 11119017,\n",
              "    darkgreen: 25600,\n",
              "    darkgrey: 11119017,\n",
              "    darkkhaki: 12433259,\n",
              "    darkmagenta: 9109643,\n",
              "    darkolivegreen: 5597999,\n",
              "    darkorange: 16747520,\n",
              "    darkorchid: 10040012,\n",
              "    darkred: 9109504,\n",
              "    darksalmon: 15308410,\n",
              "    darkseagreen: 9419919,\n",
              "    darkslateblue: 4734347,\n",
              "    darkslategray: 3100495,\n",
              "    darkslategrey: 3100495,\n",
              "    darkturquoise: 52945,\n",
              "    darkviolet: 9699539,\n",
              "    deeppink: 16716947,\n",
              "    deepskyblue: 49151,\n",
              "    dimgray: 6908265,\n",
              "    dimgrey: 6908265,\n",
              "    dodgerblue: 2003199,\n",
              "    firebrick: 11674146,\n",
              "    floralwhite: 16775920,\n",
              "    forestgreen: 2263842,\n",
              "    fuchsia: 16711935,\n",
              "    gainsboro: 14474460,\n",
              "    ghostwhite: 16316671,\n",
              "    gold: 16766720,\n",
              "    goldenrod: 14329120,\n",
              "    gray: 8421504,\n",
              "    green: 32768,\n",
              "    greenyellow: 11403055,\n",
              "    grey: 8421504,\n",
              "    honeydew: 15794160,\n",
              "    hotpink: 16738740,\n",
              "    indianred: 13458524,\n",
              "    indigo: 4915330,\n",
              "    ivory: 16777200,\n",
              "    khaki: 15787660,\n",
              "    lavender: 15132410,\n",
              "    lavenderblush: 16773365,\n",
              "    lawngreen: 8190976,\n",
              "    lemonchiffon: 16775885,\n",
              "    lightblue: 11393254,\n",
              "    lightcoral: 15761536,\n",
              "    lightcyan: 14745599,\n",
              "    lightgoldenrodyellow: 16448210,\n",
              "    lightgray: 13882323,\n",
              "    lightgreen: 9498256,\n",
              "    lightgrey: 13882323,\n",
              "    lightpink: 16758465,\n",
              "    lightsalmon: 16752762,\n",
              "    lightseagreen: 2142890,\n",
              "    lightskyblue: 8900346,\n",
              "    lightslategray: 7833753,\n",
              "    lightslategrey: 7833753,\n",
              "    lightsteelblue: 11584734,\n",
              "    lightyellow: 16777184,\n",
              "    lime: 65280,\n",
              "    limegreen: 3329330,\n",
              "    linen: 16445670,\n",
              "    magenta: 16711935,\n",
              "    maroon: 8388608,\n",
              "    mediumaquamarine: 6737322,\n",
              "    mediumblue: 205,\n",
              "    mediumorchid: 12211667,\n",
              "    mediumpurple: 9662683,\n",
              "    mediumseagreen: 3978097,\n",
              "    mediumslateblue: 8087790,\n",
              "    mediumspringgreen: 64154,\n",
              "    mediumturquoise: 4772300,\n",
              "    mediumvioletred: 13047173,\n",
              "    midnightblue: 1644912,\n",
              "    mintcream: 16121850,\n",
              "    mistyrose: 16770273,\n",
              "    moccasin: 16770229,\n",
              "    navajowhite: 16768685,\n",
              "    navy: 128,\n",
              "    oldlace: 16643558,\n",
              "    olive: 8421376,\n",
              "    olivedrab: 7048739,\n",
              "    orange: 16753920,\n",
              "    orangered: 16729344,\n",
              "    orchid: 14315734,\n",
              "    palegoldenrod: 15657130,\n",
              "    palegreen: 10025880,\n",
              "    paleturquoise: 11529966,\n",
              "    palevioletred: 14381203,\n",
              "    papayawhip: 16773077,\n",
              "    peachpuff: 16767673,\n",
              "    peru: 13468991,\n",
              "    pink: 16761035,\n",
              "    plum: 14524637,\n",
              "    powderblue: 11591910,\n",
              "    purple: 8388736,\n",
              "    rebeccapurple: 6697881,\n",
              "    red: 16711680,\n",
              "    rosybrown: 12357519,\n",
              "    royalblue: 4286945,\n",
              "    saddlebrown: 9127187,\n",
              "    salmon: 16416882,\n",
              "    sandybrown: 16032864,\n",
              "    seagreen: 3050327,\n",
              "    seashell: 16774638,\n",
              "    sienna: 10506797,\n",
              "    silver: 12632256,\n",
              "    skyblue: 8900331,\n",
              "    slateblue: 6970061,\n",
              "    slategray: 7372944,\n",
              "    slategrey: 7372944,\n",
              "    snow: 16775930,\n",
              "    springgreen: 65407,\n",
              "    steelblue: 4620980,\n",
              "    tan: 13808780,\n",
              "    teal: 32896,\n",
              "    thistle: 14204888,\n",
              "    tomato: 16737095,\n",
              "    turquoise: 4251856,\n",
              "    violet: 15631086,\n",
              "    wheat: 16113331,\n",
              "    white: 16777215,\n",
              "    whitesmoke: 16119285,\n",
              "    yellow: 16776960,\n",
              "    yellowgreen: 10145074\n",
              "  });\n",
              "  d3_rgb_names.forEach(function(key, value) {\n",
              "    d3_rgb_names.set(key, d3_rgbNumber(value));\n",
              "  });\n",
              "  function d3_functor(v) {\n",
              "    return typeof v === \"function\" ? v : function() {\n",
              "      return v;\n",
              "    };\n",
              "  }\n",
              "  d3.functor = d3_functor;\n",
              "  d3.xhr = d3_xhrType(d3_identity);\n",
              "  function d3_xhrType(response) {\n",
              "    return function(url, mimeType, callback) {\n",
              "      if (arguments.length === 2 && typeof mimeType === \"function\") callback = mimeType, \n",
              "      mimeType = null;\n",
              "      return d3_xhr(url, mimeType, response, callback);\n",
              "    };\n",
              "  }\n",
              "  function d3_xhr(url, mimeType, response, callback) {\n",
              "    var xhr = {}, dispatch = d3.dispatch(\"beforesend\", \"progress\", \"load\", \"error\"), headers = {}, request = new XMLHttpRequest(), responseType = null;\n",
              "    if (this.XDomainRequest && !(\"withCredentials\" in request) && /^(http(s)?:)?\\/\\//.test(url)) request = new XDomainRequest();\n",
              "    \"onload\" in request ? request.onload = request.onerror = respond : request.onreadystatechange = function() {\n",
              "      request.readyState > 3 && respond();\n",
              "    };\n",
              "    function respond() {\n",
              "      var status = request.status, result;\n",
              "      if (!status && d3_xhrHasResponse(request) || status >= 200 && status < 300 || status === 304) {\n",
              "        try {\n",
              "          result = response.call(xhr, request);\n",
              "        } catch (e) {\n",
              "          dispatch.error.call(xhr, e);\n",
              "          return;\n",
              "        }\n",
              "        dispatch.load.call(xhr, result);\n",
              "      } else {\n",
              "        dispatch.error.call(xhr, request);\n",
              "      }\n",
              "    }\n",
              "    request.onprogress = function(event) {\n",
              "      var o = d3.event;\n",
              "      d3.event = event;\n",
              "      try {\n",
              "        dispatch.progress.call(xhr, request);\n",
              "      } finally {\n",
              "        d3.event = o;\n",
              "      }\n",
              "    };\n",
              "    xhr.header = function(name, value) {\n",
              "      name = (name + \"\").toLowerCase();\n",
              "      if (arguments.length < 2) return headers[name];\n",
              "      if (value == null) delete headers[name]; else headers[name] = value + \"\";\n",
              "      return xhr;\n",
              "    };\n",
              "    xhr.mimeType = function(value) {\n",
              "      if (!arguments.length) return mimeType;\n",
              "      mimeType = value == null ? null : value + \"\";\n",
              "      return xhr;\n",
              "    };\n",
              "    xhr.responseType = function(value) {\n",
              "      if (!arguments.length) return responseType;\n",
              "      responseType = value;\n",
              "      return xhr;\n",
              "    };\n",
              "    xhr.response = function(value) {\n",
              "      response = value;\n",
              "      return xhr;\n",
              "    };\n",
              "    [ \"get\", \"post\" ].forEach(function(method) {\n",
              "      xhr[method] = function() {\n",
              "        return xhr.send.apply(xhr, [ method ].concat(d3_array(arguments)));\n",
              "      };\n",
              "    });\n",
              "    xhr.send = function(method, data, callback) {\n",
              "      if (arguments.length === 2 && typeof data === \"function\") callback = data, data = null;\n",
              "      request.open(method, url, true);\n",
              "      if (mimeType != null && !(\"accept\" in headers)) headers[\"accept\"] = mimeType + \",*/*\";\n",
              "      if (request.setRequestHeader) for (var name in headers) request.setRequestHeader(name, headers[name]);\n",
              "      if (mimeType != null && request.overrideMimeType) request.overrideMimeType(mimeType);\n",
              "      if (responseType != null) request.responseType = responseType;\n",
              "      if (callback != null) xhr.on(\"error\", callback).on(\"load\", function(request) {\n",
              "        callback(null, request);\n",
              "      });\n",
              "      dispatch.beforesend.call(xhr, request);\n",
              "      request.send(data == null ? null : data);\n",
              "      return xhr;\n",
              "    };\n",
              "    xhr.abort = function() {\n",
              "      request.abort();\n",
              "      return xhr;\n",
              "    };\n",
              "    d3.rebind(xhr, dispatch, \"on\");\n",
              "    return callback == null ? xhr : xhr.get(d3_xhr_fixCallback(callback));\n",
              "  }\n",
              "  function d3_xhr_fixCallback(callback) {\n",
              "    return callback.length === 1 ? function(error, request) {\n",
              "      callback(error == null ? request : null);\n",
              "    } : callback;\n",
              "  }\n",
              "  function d3_xhrHasResponse(request) {\n",
              "    var type = request.responseType;\n",
              "    return type && type !== \"text\" ? request.response : request.responseText;\n",
              "  }\n",
              "  d3.dsv = function(delimiter, mimeType) {\n",
              "    var reFormat = new RegExp('[\"' + delimiter + \"\\n]\"), delimiterCode = delimiter.charCodeAt(0);\n",
              "    function dsv(url, row, callback) {\n",
              "      if (arguments.length < 3) callback = row, row = null;\n",
              "      var xhr = d3_xhr(url, mimeType, row == null ? response : typedResponse(row), callback);\n",
              "      xhr.row = function(_) {\n",
              "        return arguments.length ? xhr.response((row = _) == null ? response : typedResponse(_)) : row;\n",
              "      };\n",
              "      return xhr;\n",
              "    }\n",
              "    function response(request) {\n",
              "      return dsv.parse(request.responseText);\n",
              "    }\n",
              "    function typedResponse(f) {\n",
              "      return function(request) {\n",
              "        return dsv.parse(request.responseText, f);\n",
              "      };\n",
              "    }\n",
              "    dsv.parse = function(text, f) {\n",
              "      var o;\n",
              "      return dsv.parseRows(text, function(row, i) {\n",
              "        if (o) return o(row, i - 1);\n",
              "        var a = new Function(\"d\", \"return {\" + row.map(function(name, i) {\n",
              "          return JSON.stringify(name) + \": d[\" + i + \"]\";\n",
              "        }).join(\",\") + \"}\");\n",
              "        o = f ? function(row, i) {\n",
              "          return f(a(row), i);\n",
              "        } : a;\n",
              "      });\n",
              "    };\n",
              "    dsv.parseRows = function(text, f) {\n",
              "      var EOL = {}, EOF = {}, rows = [], N = text.length, I = 0, n = 0, t, eol;\n",
              "      function token() {\n",
              "        if (I >= N) return EOF;\n",
              "        if (eol) return eol = false, EOL;\n",
              "        var j = I;\n",
              "        if (text.charCodeAt(j) === 34) {\n",
              "          var i = j;\n",
              "          while (i++ < N) {\n",
              "            if (text.charCodeAt(i) === 34) {\n",
              "              if (text.charCodeAt(i + 1) !== 34) break;\n",
              "              ++i;\n",
              "            }\n",
              "          }\n",
              "          I = i + 2;\n",
              "          var c = text.charCodeAt(i + 1);\n",
              "          if (c === 13) {\n",
              "            eol = true;\n",
              "            if (text.charCodeAt(i + 2) === 10) ++I;\n",
              "          } else if (c === 10) {\n",
              "            eol = true;\n",
              "          }\n",
              "          return text.slice(j + 1, i).replace(/\"\"/g, '\"');\n",
              "        }\n",
              "        while (I < N) {\n",
              "          var c = text.charCodeAt(I++), k = 1;\n",
              "          if (c === 10) eol = true; else if (c === 13) {\n",
              "            eol = true;\n",
              "            if (text.charCodeAt(I) === 10) ++I, ++k;\n",
              "          } else if (c !== delimiterCode) continue;\n",
              "          return text.slice(j, I - k);\n",
              "        }\n",
              "        return text.slice(j);\n",
              "      }\n",
              "      while ((t = token()) !== EOF) {\n",
              "        var a = [];\n",
              "        while (t !== EOL && t !== EOF) {\n",
              "          a.push(t);\n",
              "          t = token();\n",
              "        }\n",
              "        if (f && (a = f(a, n++)) == null) continue;\n",
              "        rows.push(a);\n",
              "      }\n",
              "      return rows;\n",
              "    };\n",
              "    dsv.format = function(rows) {\n",
              "      if (Array.isArray(rows[0])) return dsv.formatRows(rows);\n",
              "      var fieldSet = new d3_Set(), fields = [];\n",
              "      rows.forEach(function(row) {\n",
              "        for (var field in row) {\n",
              "          if (!fieldSet.has(field)) {\n",
              "            fields.push(fieldSet.add(field));\n",
              "          }\n",
              "        }\n",
              "      });\n",
              "      return [ fields.map(formatValue).join(delimiter) ].concat(rows.map(function(row) {\n",
              "        return fields.map(function(field) {\n",
              "          return formatValue(row[field]);\n",
              "        }).join(delimiter);\n",
              "      })).join(\"\\n\");\n",
              "    };\n",
              "    dsv.formatRows = function(rows) {\n",
              "      return rows.map(formatRow).join(\"\\n\");\n",
              "    };\n",
              "    function formatRow(row) {\n",
              "      return row.map(formatValue).join(delimiter);\n",
              "    }\n",
              "    function formatValue(text) {\n",
              "      return reFormat.test(text) ? '\"' + text.replace(/\\\"/g, '\"\"') + '\"' : text;\n",
              "    }\n",
              "    return dsv;\n",
              "  };\n",
              "  d3.csv = d3.dsv(\",\", \"text/csv\");\n",
              "  d3.tsv = d3.dsv(\"\t\", \"text/tab-separated-values\");\n",
              "  var d3_timer_queueHead, d3_timer_queueTail, d3_timer_interval, d3_timer_timeout, d3_timer_frame = this[d3_vendorSymbol(this, \"requestAnimationFrame\")] || function(callback) {\n",
              "    setTimeout(callback, 17);\n",
              "  };\n",
              "  d3.timer = function() {\n",
              "    d3_timer.apply(this, arguments);\n",
              "  };\n",
              "  function d3_timer(callback, delay, then) {\n",
              "    var n = arguments.length;\n",
              "    if (n < 2) delay = 0;\n",
              "    if (n < 3) then = Date.now();\n",
              "    var time = then + delay, timer = {\n",
              "      c: callback,\n",
              "      t: time,\n",
              "      n: null\n",
              "    };\n",
              "    if (d3_timer_queueTail) d3_timer_queueTail.n = timer; else d3_timer_queueHead = timer;\n",
              "    d3_timer_queueTail = timer;\n",
              "    if (!d3_timer_interval) {\n",
              "      d3_timer_timeout = clearTimeout(d3_timer_timeout);\n",
              "      d3_timer_interval = 1;\n",
              "      d3_timer_frame(d3_timer_step);\n",
              "    }\n",
              "    return timer;\n",
              "  }\n",
              "  function d3_timer_step() {\n",
              "    var now = d3_timer_mark(), delay = d3_timer_sweep() - now;\n",
              "    if (delay > 24) {\n",
              "      if (isFinite(delay)) {\n",
              "        clearTimeout(d3_timer_timeout);\n",
              "        d3_timer_timeout = setTimeout(d3_timer_step, delay);\n",
              "      }\n",
              "      d3_timer_interval = 0;\n",
              "    } else {\n",
              "      d3_timer_interval = 1;\n",
              "      d3_timer_frame(d3_timer_step);\n",
              "    }\n",
              "  }\n",
              "  d3.timer.flush = function() {\n",
              "    d3_timer_mark();\n",
              "    d3_timer_sweep();\n",
              "  };\n",
              "  function d3_timer_mark() {\n",
              "    var now = Date.now(), timer = d3_timer_queueHead;\n",
              "    while (timer) {\n",
              "      if (now >= timer.t && timer.c(now - timer.t)) timer.c = null;\n",
              "      timer = timer.n;\n",
              "    }\n",
              "    return now;\n",
              "  }\n",
              "  function d3_timer_sweep() {\n",
              "    var t0, t1 = d3_timer_queueHead, time = Infinity;\n",
              "    while (t1) {\n",
              "      if (t1.c) {\n",
              "        if (t1.t < time) time = t1.t;\n",
              "        t1 = (t0 = t1).n;\n",
              "      } else {\n",
              "        t1 = t0 ? t0.n = t1.n : d3_timer_queueHead = t1.n;\n",
              "      }\n",
              "    }\n",
              "    d3_timer_queueTail = t0;\n",
              "    return time;\n",
              "  }\n",
              "  function d3_format_precision(x, p) {\n",
              "    return p - (x ? Math.ceil(Math.log(x) / Math.LN10) : 1);\n",
              "  }\n",
              "  d3.round = function(x, n) {\n",
              "    return n ? Math.round(x * (n = Math.pow(10, n))) / n : Math.round(x);\n",
              "  };\n",
              "  var d3_formatPrefixes = [ \"y\", \"z\", \"a\", \"f\", \"p\", \"n\", \"µ\", \"m\", \"\", \"k\", \"M\", \"G\", \"T\", \"P\", \"E\", \"Z\", \"Y\" ].map(d3_formatPrefix);\n",
              "  d3.formatPrefix = function(value, precision) {\n",
              "    var i = 0;\n",
              "    if (value = +value) {\n",
              "      if (value < 0) value *= -1;\n",
              "      if (precision) value = d3.round(value, d3_format_precision(value, precision));\n",
              "      i = 1 + Math.floor(1e-12 + Math.log(value) / Math.LN10);\n",
              "      i = Math.max(-24, Math.min(24, Math.floor((i - 1) / 3) * 3));\n",
              "    }\n",
              "    return d3_formatPrefixes[8 + i / 3];\n",
              "  };\n",
              "  function d3_formatPrefix(d, i) {\n",
              "    var k = Math.pow(10, abs(8 - i) * 3);\n",
              "    return {\n",
              "      scale: i > 8 ? function(d) {\n",
              "        return d / k;\n",
              "      } : function(d) {\n",
              "        return d * k;\n",
              "      },\n",
              "      symbol: d\n",
              "    };\n",
              "  }\n",
              "  function d3_locale_numberFormat(locale) {\n",
              "    var locale_decimal = locale.decimal, locale_thousands = locale.thousands, locale_grouping = locale.grouping, locale_currency = locale.currency, formatGroup = locale_grouping && locale_thousands ? function(value, width) {\n",
              "      var i = value.length, t = [], j = 0, g = locale_grouping[0], length = 0;\n",
              "      while (i > 0 && g > 0) {\n",
              "        if (length + g + 1 > width) g = Math.max(1, width - length);\n",
              "        t.push(value.substring(i -= g, i + g));\n",
              "        if ((length += g + 1) > width) break;\n",
              "        g = locale_grouping[j = (j + 1) % locale_grouping.length];\n",
              "      }\n",
              "      return t.reverse().join(locale_thousands);\n",
              "    } : d3_identity;\n",
              "    return function(specifier) {\n",
              "      var match = d3_format_re.exec(specifier), fill = match[1] || \" \", align = match[2] || \">\", sign = match[3] || \"-\", symbol = match[4] || \"\", zfill = match[5], width = +match[6], comma = match[7], precision = match[8], type = match[9], scale = 1, prefix = \"\", suffix = \"\", integer = false, exponent = true;\n",
              "      if (precision) precision = +precision.substring(1);\n",
              "      if (zfill || fill === \"0\" && align === \"=\") {\n",
              "        zfill = fill = \"0\";\n",
              "        align = \"=\";\n",
              "      }\n",
              "      switch (type) {\n",
              "       case \"n\":\n",
              "        comma = true;\n",
              "        type = \"g\";\n",
              "        break;\n",
              "\n",
              "       case \"%\":\n",
              "        scale = 100;\n",
              "        suffix = \"%\";\n",
              "        type = \"f\";\n",
              "        break;\n",
              "\n",
              "       case \"p\":\n",
              "        scale = 100;\n",
              "        suffix = \"%\";\n",
              "        type = \"r\";\n",
              "        break;\n",
              "\n",
              "       case \"b\":\n",
              "       case \"o\":\n",
              "       case \"x\":\n",
              "       case \"X\":\n",
              "        if (symbol === \"#\") prefix = \"0\" + type.toLowerCase();\n",
              "\n",
              "       case \"c\":\n",
              "        exponent = false;\n",
              "\n",
              "       case \"d\":\n",
              "        integer = true;\n",
              "        precision = 0;\n",
              "        break;\n",
              "\n",
              "       case \"s\":\n",
              "        scale = -1;\n",
              "        type = \"r\";\n",
              "        break;\n",
              "      }\n",
              "      if (symbol === \"$\") prefix = locale_currency[0], suffix = locale_currency[1];\n",
              "      if (type == \"r\" && !precision) type = \"g\";\n",
              "      if (precision != null) {\n",
              "        if (type == \"g\") precision = Math.max(1, Math.min(21, precision)); else if (type == \"e\" || type == \"f\") precision = Math.max(0, Math.min(20, precision));\n",
              "      }\n",
              "      type = d3_format_types.get(type) || d3_format_typeDefault;\n",
              "      var zcomma = zfill && comma;\n",
              "      return function(value) {\n",
              "        var fullSuffix = suffix;\n",
              "        if (integer && value % 1) return \"\";\n",
              "        var negative = value < 0 || value === 0 && 1 / value < 0 ? (value = -value, \"-\") : sign === \"-\" ? \"\" : sign;\n",
              "        if (scale < 0) {\n",
              "          var unit = d3.formatPrefix(value, precision);\n",
              "          value = unit.scale(value);\n",
              "          fullSuffix = unit.symbol + suffix;\n",
              "        } else {\n",
              "          value *= scale;\n",
              "        }\n",
              "        value = type(value, precision);\n",
              "        var i = value.lastIndexOf(\".\"), before, after;\n",
              "        if (i < 0) {\n",
              "          var j = exponent ? value.lastIndexOf(\"e\") : -1;\n",
              "          if (j < 0) before = value, after = \"\"; else before = value.substring(0, j), after = value.substring(j);\n",
              "        } else {\n",
              "          before = value.substring(0, i);\n",
              "          after = locale_decimal + value.substring(i + 1);\n",
              "        }\n",
              "        if (!zfill && comma) before = formatGroup(before, Infinity);\n",
              "        var length = prefix.length + before.length + after.length + (zcomma ? 0 : negative.length), padding = length < width ? new Array(length = width - length + 1).join(fill) : \"\";\n",
              "        if (zcomma) before = formatGroup(padding + before, padding.length ? width - after.length : Infinity);\n",
              "        negative += prefix;\n",
              "        value = before + after;\n",
              "        return (align === \"<\" ? negative + value + padding : align === \">\" ? padding + negative + value : align === \"^\" ? padding.substring(0, length >>= 1) + negative + value + padding.substring(length) : negative + (zcomma ? value : padding + value)) + fullSuffix;\n",
              "      };\n",
              "    };\n",
              "  }\n",
              "  var d3_format_re = /(?:([^{])?([<>=^]))?([+\\- ])?([$#])?(0)?(\\d+)?(,)?(\\.-?\\d+)?([a-z%])?/i;\n",
              "  var d3_format_types = d3.map({\n",
              "    b: function(x) {\n",
              "      return x.toString(2);\n",
              "    },\n",
              "    c: function(x) {\n",
              "      return String.fromCharCode(x);\n",
              "    },\n",
              "    o: function(x) {\n",
              "      return x.toString(8);\n",
              "    },\n",
              "    x: function(x) {\n",
              "      return x.toString(16);\n",
              "    },\n",
              "    X: function(x) {\n",
              "      return x.toString(16).toUpperCase();\n",
              "    },\n",
              "    g: function(x, p) {\n",
              "      return x.toPrecision(p);\n",
              "    },\n",
              "    e: function(x, p) {\n",
              "      return x.toExponential(p);\n",
              "    },\n",
              "    f: function(x, p) {\n",
              "      return x.toFixed(p);\n",
              "    },\n",
              "    r: function(x, p) {\n",
              "      return (x = d3.round(x, d3_format_precision(x, p))).toFixed(Math.max(0, Math.min(20, d3_format_precision(x * (1 + 1e-15), p))));\n",
              "    }\n",
              "  });\n",
              "  function d3_format_typeDefault(x) {\n",
              "    return x + \"\";\n",
              "  }\n",
              "  var d3_time = d3.time = {}, d3_date = Date;\n",
              "  function d3_date_utc() {\n",
              "    this._ = new Date(arguments.length > 1 ? Date.UTC.apply(this, arguments) : arguments[0]);\n",
              "  }\n",
              "  d3_date_utc.prototype = {\n",
              "    getDate: function() {\n",
              "      return this._.getUTCDate();\n",
              "    },\n",
              "    getDay: function() {\n",
              "      return this._.getUTCDay();\n",
              "    },\n",
              "    getFullYear: function() {\n",
              "      return this._.getUTCFullYear();\n",
              "    },\n",
              "    getHours: function() {\n",
              "      return this._.getUTCHours();\n",
              "    },\n",
              "    getMilliseconds: function() {\n",
              "      return this._.getUTCMilliseconds();\n",
              "    },\n",
              "    getMinutes: function() {\n",
              "      return this._.getUTCMinutes();\n",
              "    },\n",
              "    getMonth: function() {\n",
              "      return this._.getUTCMonth();\n",
              "    },\n",
              "    getSeconds: function() {\n",
              "      return this._.getUTCSeconds();\n",
              "    },\n",
              "    getTime: function() {\n",
              "      return this._.getTime();\n",
              "    },\n",
              "    getTimezoneOffset: function() {\n",
              "      return 0;\n",
              "    },\n",
              "    valueOf: function() {\n",
              "      return this._.valueOf();\n",
              "    },\n",
              "    setDate: function() {\n",
              "      d3_time_prototype.setUTCDate.apply(this._, arguments);\n",
              "    },\n",
              "    setDay: function() {\n",
              "      d3_time_prototype.setUTCDay.apply(this._, arguments);\n",
              "    },\n",
              "    setFullYear: function() {\n",
              "      d3_time_prototype.setUTCFullYear.apply(this._, arguments);\n",
              "    },\n",
              "    setHours: function() {\n",
              "      d3_time_prototype.setUTCHours.apply(this._, arguments);\n",
              "    },\n",
              "    setMilliseconds: function() {\n",
              "      d3_time_prototype.setUTCMilliseconds.apply(this._, arguments);\n",
              "    },\n",
              "    setMinutes: function() {\n",
              "      d3_time_prototype.setUTCMinutes.apply(this._, arguments);\n",
              "    },\n",
              "    setMonth: function() {\n",
              "      d3_time_prototype.setUTCMonth.apply(this._, arguments);\n",
              "    },\n",
              "    setSeconds: function() {\n",
              "      d3_time_prototype.setUTCSeconds.apply(this._, arguments);\n",
              "    },\n",
              "    setTime: function() {\n",
              "      d3_time_prototype.setTime.apply(this._, arguments);\n",
              "    }\n",
              "  };\n",
              "  var d3_time_prototype = Date.prototype;\n",
              "  function d3_time_interval(local, step, number) {\n",
              "    function round(date) {\n",
              "      var d0 = local(date), d1 = offset(d0, 1);\n",
              "      return date - d0 < d1 - date ? d0 : d1;\n",
              "    }\n",
              "    function ceil(date) {\n",
              "      step(date = local(new d3_date(date - 1)), 1);\n",
              "      return date;\n",
              "    }\n",
              "    function offset(date, k) {\n",
              "      step(date = new d3_date(+date), k);\n",
              "      return date;\n",
              "    }\n",
              "    function range(t0, t1, dt) {\n",
              "      var time = ceil(t0), times = [];\n",
              "      if (dt > 1) {\n",
              "        while (time < t1) {\n",
              "          if (!(number(time) % dt)) times.push(new Date(+time));\n",
              "          step(time, 1);\n",
              "        }\n",
              "      } else {\n",
              "        while (time < t1) times.push(new Date(+time)), step(time, 1);\n",
              "      }\n",
              "      return times;\n",
              "    }\n",
              "    function range_utc(t0, t1, dt) {\n",
              "      try {\n",
              "        d3_date = d3_date_utc;\n",
              "        var utc = new d3_date_utc();\n",
              "        utc._ = t0;\n",
              "        return range(utc, t1, dt);\n",
              "      } finally {\n",
              "        d3_date = Date;\n",
              "      }\n",
              "    }\n",
              "    local.floor = local;\n",
              "    local.round = round;\n",
              "    local.ceil = ceil;\n",
              "    local.offset = offset;\n",
              "    local.range = range;\n",
              "    var utc = local.utc = d3_time_interval_utc(local);\n",
              "    utc.floor = utc;\n",
              "    utc.round = d3_time_interval_utc(round);\n",
              "    utc.ceil = d3_time_interval_utc(ceil);\n",
              "    utc.offset = d3_time_interval_utc(offset);\n",
              "    utc.range = range_utc;\n",
              "    return local;\n",
              "  }\n",
              "  function d3_time_interval_utc(method) {\n",
              "    return function(date, k) {\n",
              "      try {\n",
              "        d3_date = d3_date_utc;\n",
              "        var utc = new d3_date_utc();\n",
              "        utc._ = date;\n",
              "        return method(utc, k)._;\n",
              "      } finally {\n",
              "        d3_date = Date;\n",
              "      }\n",
              "    };\n",
              "  }\n",
              "  d3_time.year = d3_time_interval(function(date) {\n",
              "    date = d3_time.day(date);\n",
              "    date.setMonth(0, 1);\n",
              "    return date;\n",
              "  }, function(date, offset) {\n",
              "    date.setFullYear(date.getFullYear() + offset);\n",
              "  }, function(date) {\n",
              "    return date.getFullYear();\n",
              "  });\n",
              "  d3_time.years = d3_time.year.range;\n",
              "  d3_time.years.utc = d3_time.year.utc.range;\n",
              "  d3_time.day = d3_time_interval(function(date) {\n",
              "    var day = new d3_date(2e3, 0);\n",
              "    day.setFullYear(date.getFullYear(), date.getMonth(), date.getDate());\n",
              "    return day;\n",
              "  }, function(date, offset) {\n",
              "    date.setDate(date.getDate() + offset);\n",
              "  }, function(date) {\n",
              "    return date.getDate() - 1;\n",
              "  });\n",
              "  d3_time.days = d3_time.day.range;\n",
              "  d3_time.days.utc = d3_time.day.utc.range;\n",
              "  d3_time.dayOfYear = function(date) {\n",
              "    var year = d3_time.year(date);\n",
              "    return Math.floor((date - year - (date.getTimezoneOffset() - year.getTimezoneOffset()) * 6e4) / 864e5);\n",
              "  };\n",
              "  [ \"sunday\", \"monday\", \"tuesday\", \"wednesday\", \"thursday\", \"friday\", \"saturday\" ].forEach(function(day, i) {\n",
              "    i = 7 - i;\n",
              "    var interval = d3_time[day] = d3_time_interval(function(date) {\n",
              "      (date = d3_time.day(date)).setDate(date.getDate() - (date.getDay() + i) % 7);\n",
              "      return date;\n",
              "    }, function(date, offset) {\n",
              "      date.setDate(date.getDate() + Math.floor(offset) * 7);\n",
              "    }, function(date) {\n",
              "      var day = d3_time.year(date).getDay();\n",
              "      return Math.floor((d3_time.dayOfYear(date) + (day + i) % 7) / 7) - (day !== i);\n",
              "    });\n",
              "    d3_time[day + \"s\"] = interval.range;\n",
              "    d3_time[day + \"s\"].utc = interval.utc.range;\n",
              "    d3_time[day + \"OfYear\"] = function(date) {\n",
              "      var day = d3_time.year(date).getDay();\n",
              "      return Math.floor((d3_time.dayOfYear(date) + (day + i) % 7) / 7);\n",
              "    };\n",
              "  });\n",
              "  d3_time.week = d3_time.sunday;\n",
              "  d3_time.weeks = d3_time.sunday.range;\n",
              "  d3_time.weeks.utc = d3_time.sunday.utc.range;\n",
              "  d3_time.weekOfYear = d3_time.sundayOfYear;\n",
              "  function d3_locale_timeFormat(locale) {\n",
              "    var locale_dateTime = locale.dateTime, locale_date = locale.date, locale_time = locale.time, locale_periods = locale.periods, locale_days = locale.days, locale_shortDays = locale.shortDays, locale_months = locale.months, locale_shortMonths = locale.shortMonths;\n",
              "    function d3_time_format(template) {\n",
              "      var n = template.length;\n",
              "      function format(date) {\n",
              "        var string = [], i = -1, j = 0, c, p, f;\n",
              "        while (++i < n) {\n",
              "          if (template.charCodeAt(i) === 37) {\n",
              "            string.push(template.slice(j, i));\n",
              "            if ((p = d3_time_formatPads[c = template.charAt(++i)]) != null) c = template.charAt(++i);\n",
              "            if (f = d3_time_formats[c]) c = f(date, p == null ? c === \"e\" ? \" \" : \"0\" : p);\n",
              "            string.push(c);\n",
              "            j = i + 1;\n",
              "          }\n",
              "        }\n",
              "        string.push(template.slice(j, i));\n",
              "        return string.join(\"\");\n",
              "      }\n",
              "      format.parse = function(string) {\n",
              "        var d = {\n",
              "          y: 1900,\n",
              "          m: 0,\n",
              "          d: 1,\n",
              "          H: 0,\n",
              "          M: 0,\n",
              "          S: 0,\n",
              "          L: 0,\n",
              "          Z: null\n",
              "        }, i = d3_time_parse(d, template, string, 0);\n",
              "        if (i != string.length) return null;\n",
              "        if (\"p\" in d) d.H = d.H % 12 + d.p * 12;\n",
              "        var localZ = d.Z != null && d3_date !== d3_date_utc, date = new (localZ ? d3_date_utc : d3_date)();\n",
              "        if (\"j\" in d) date.setFullYear(d.y, 0, d.j); else if (\"W\" in d || \"U\" in d) {\n",
              "          if (!(\"w\" in d)) d.w = \"W\" in d ? 1 : 0;\n",
              "          date.setFullYear(d.y, 0, 1);\n",
              "          date.setFullYear(d.y, 0, \"W\" in d ? (d.w + 6) % 7 + d.W * 7 - (date.getDay() + 5) % 7 : d.w + d.U * 7 - (date.getDay() + 6) % 7);\n",
              "        } else date.setFullYear(d.y, d.m, d.d);\n",
              "        date.setHours(d.H + (d.Z / 100 | 0), d.M + d.Z % 100, d.S, d.L);\n",
              "        return localZ ? date._ : date;\n",
              "      };\n",
              "      format.toString = function() {\n",
              "        return template;\n",
              "      };\n",
              "      return format;\n",
              "    }\n",
              "    function d3_time_parse(date, template, string, j) {\n",
              "      var c, p, t, i = 0, n = template.length, m = string.length;\n",
              "      while (i < n) {\n",
              "        if (j >= m) return -1;\n",
              "        c = template.charCodeAt(i++);\n",
              "        if (c === 37) {\n",
              "          t = template.charAt(i++);\n",
              "          p = d3_time_parsers[t in d3_time_formatPads ? template.charAt(i++) : t];\n",
              "          if (!p || (j = p(date, string, j)) < 0) return -1;\n",
              "        } else if (c != string.charCodeAt(j++)) {\n",
              "          return -1;\n",
              "        }\n",
              "      }\n",
              "      return j;\n",
              "    }\n",
              "    d3_time_format.utc = function(template) {\n",
              "      var local = d3_time_format(template);\n",
              "      function format(date) {\n",
              "        try {\n",
              "          d3_date = d3_date_utc;\n",
              "          var utc = new d3_date();\n",
              "          utc._ = date;\n",
              "          return local(utc);\n",
              "        } finally {\n",
              "          d3_date = Date;\n",
              "        }\n",
              "      }\n",
              "      format.parse = function(string) {\n",
              "        try {\n",
              "          d3_date = d3_date_utc;\n",
              "          var date = local.parse(string);\n",
              "          return date && date._;\n",
              "        } finally {\n",
              "          d3_date = Date;\n",
              "        }\n",
              "      };\n",
              "      format.toString = local.toString;\n",
              "      return format;\n",
              "    };\n",
              "    d3_time_format.multi = d3_time_format.utc.multi = d3_time_formatMulti;\n",
              "    var d3_time_periodLookup = d3.map(), d3_time_dayRe = d3_time_formatRe(locale_days), d3_time_dayLookup = d3_time_formatLookup(locale_days), d3_time_dayAbbrevRe = d3_time_formatRe(locale_shortDays), d3_time_dayAbbrevLookup = d3_time_formatLookup(locale_shortDays), d3_time_monthRe = d3_time_formatRe(locale_months), d3_time_monthLookup = d3_time_formatLookup(locale_months), d3_time_monthAbbrevRe = d3_time_formatRe(locale_shortMonths), d3_time_monthAbbrevLookup = d3_time_formatLookup(locale_shortMonths);\n",
              "    locale_periods.forEach(function(p, i) {\n",
              "      d3_time_periodLookup.set(p.toLowerCase(), i);\n",
              "    });\n",
              "    var d3_time_formats = {\n",
              "      a: function(d) {\n",
              "        return locale_shortDays[d.getDay()];\n",
              "      },\n",
              "      A: function(d) {\n",
              "        return locale_days[d.getDay()];\n",
              "      },\n",
              "      b: function(d) {\n",
              "        return locale_shortMonths[d.getMonth()];\n",
              "      },\n",
              "      B: function(d) {\n",
              "        return locale_months[d.getMonth()];\n",
              "      },\n",
              "      c: d3_time_format(locale_dateTime),\n",
              "      d: function(d, p) {\n",
              "        return d3_time_formatPad(d.getDate(), p, 2);\n",
              "      },\n",
              "      e: function(d, p) {\n",
              "        return d3_time_formatPad(d.getDate(), p, 2);\n",
              "      },\n",
              "      H: function(d, p) {\n",
              "        return d3_time_formatPad(d.getHours(), p, 2);\n",
              "      },\n",
              "      I: function(d, p) {\n",
              "        return d3_time_formatPad(d.getHours() % 12 || 12, p, 2);\n",
              "      },\n",
              "      j: function(d, p) {\n",
              "        return d3_time_formatPad(1 + d3_time.dayOfYear(d), p, 3);\n",
              "      },\n",
              "      L: function(d, p) {\n",
              "        return d3_time_formatPad(d.getMilliseconds(), p, 3);\n",
              "      },\n",
              "      m: function(d, p) {\n",
              "        return d3_time_formatPad(d.getMonth() + 1, p, 2);\n",
              "      },\n",
              "      M: function(d, p) {\n",
              "        return d3_time_formatPad(d.getMinutes(), p, 2);\n",
              "      },\n",
              "      p: function(d) {\n",
              "        return locale_periods[+(d.getHours() >= 12)];\n",
              "      },\n",
              "      S: function(d, p) {\n",
              "        return d3_time_formatPad(d.getSeconds(), p, 2);\n",
              "      },\n",
              "      U: function(d, p) {\n",
              "        return d3_time_formatPad(d3_time.sundayOfYear(d), p, 2);\n",
              "      },\n",
              "      w: function(d) {\n",
              "        return d.getDay();\n",
              "      },\n",
              "      W: function(d, p) {\n",
              "        return d3_time_formatPad(d3_time.mondayOfYear(d), p, 2);\n",
              "      },\n",
              "      x: d3_time_format(locale_date),\n",
              "      X: d3_time_format(locale_time),\n",
              "      y: function(d, p) {\n",
              "        return d3_time_formatPad(d.getFullYear() % 100, p, 2);\n",
              "      },\n",
              "      Y: function(d, p) {\n",
              "        return d3_time_formatPad(d.getFullYear() % 1e4, p, 4);\n",
              "      },\n",
              "      Z: d3_time_zone,\n",
              "      \"%\": function() {\n",
              "        return \"%\";\n",
              "      }\n",
              "    };\n",
              "    var d3_time_parsers = {\n",
              "      a: d3_time_parseWeekdayAbbrev,\n",
              "      A: d3_time_parseWeekday,\n",
              "      b: d3_time_parseMonthAbbrev,\n",
              "      B: d3_time_parseMonth,\n",
              "      c: d3_time_parseLocaleFull,\n",
              "      d: d3_time_parseDay,\n",
              "      e: d3_time_parseDay,\n",
              "      H: d3_time_parseHour24,\n",
              "      I: d3_time_parseHour24,\n",
              "      j: d3_time_parseDayOfYear,\n",
              "      L: d3_time_parseMilliseconds,\n",
              "      m: d3_time_parseMonthNumber,\n",
              "      M: d3_time_parseMinutes,\n",
              "      p: d3_time_parseAmPm,\n",
              "      S: d3_time_parseSeconds,\n",
              "      U: d3_time_parseWeekNumberSunday,\n",
              "      w: d3_time_parseWeekdayNumber,\n",
              "      W: d3_time_parseWeekNumberMonday,\n",
              "      x: d3_time_parseLocaleDate,\n",
              "      X: d3_time_parseLocaleTime,\n",
              "      y: d3_time_parseYear,\n",
              "      Y: d3_time_parseFullYear,\n",
              "      Z: d3_time_parseZone,\n",
              "      \"%\": d3_time_parseLiteralPercent\n",
              "    };\n",
              "    function d3_time_parseWeekdayAbbrev(date, string, i) {\n",
              "      d3_time_dayAbbrevRe.lastIndex = 0;\n",
              "      var n = d3_time_dayAbbrevRe.exec(string.slice(i));\n",
              "      return n ? (date.w = d3_time_dayAbbrevLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;\n",
              "    }\n",
              "    function d3_time_parseWeekday(date, string, i) {\n",
              "      d3_time_dayRe.lastIndex = 0;\n",
              "      var n = d3_time_dayRe.exec(string.slice(i));\n",
              "      return n ? (date.w = d3_time_dayLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;\n",
              "    }\n",
              "    function d3_time_parseMonthAbbrev(date, string, i) {\n",
              "      d3_time_monthAbbrevRe.lastIndex = 0;\n",
              "      var n = d3_time_monthAbbrevRe.exec(string.slice(i));\n",
              "      return n ? (date.m = d3_time_monthAbbrevLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;\n",
              "    }\n",
              "    function d3_time_parseMonth(date, string, i) {\n",
              "      d3_time_monthRe.lastIndex = 0;\n",
              "      var n = d3_time_monthRe.exec(string.slice(i));\n",
              "      return n ? (date.m = d3_time_monthLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;\n",
              "    }\n",
              "    function d3_time_parseLocaleFull(date, string, i) {\n",
              "      return d3_time_parse(date, d3_time_formats.c.toString(), string, i);\n",
              "    }\n",
              "    function d3_time_parseLocaleDate(date, string, i) {\n",
              "      return d3_time_parse(date, d3_time_formats.x.toString(), string, i);\n",
              "    }\n",
              "    function d3_time_parseLocaleTime(date, string, i) {\n",
              "      return d3_time_parse(date, d3_time_formats.X.toString(), string, i);\n",
              "    }\n",
              "    function d3_time_parseAmPm(date, string, i) {\n",
              "      var n = d3_time_periodLookup.get(string.slice(i, i += 2).toLowerCase());\n",
              "      return n == null ? -1 : (date.p = n, i);\n",
              "    }\n",
              "    return d3_time_format;\n",
              "  }\n",
              "  var d3_time_formatPads = {\n",
              "    \"-\": \"\",\n",
              "    _: \" \",\n",
              "    \"0\": \"0\"\n",
              "  }, d3_time_numberRe = /^\\s*\\d+/, d3_time_percentRe = /^%/;\n",
              "  function d3_time_formatPad(value, fill, width) {\n",
              "    var sign = value < 0 ? \"-\" : \"\", string = (sign ? -value : value) + \"\", length = string.length;\n",
              "    return sign + (length < width ? new Array(width - length + 1).join(fill) + string : string);\n",
              "  }\n",
              "  function d3_time_formatRe(names) {\n",
              "    return new RegExp(\"^(?:\" + names.map(d3.requote).join(\"|\") + \")\", \"i\");\n",
              "  }\n",
              "  function d3_time_formatLookup(names) {\n",
              "    var map = new d3_Map(), i = -1, n = names.length;\n",
              "    while (++i < n) map.set(names[i].toLowerCase(), i);\n",
              "    return map;\n",
              "  }\n",
              "  function d3_time_parseWeekdayNumber(date, string, i) {\n",
              "    d3_time_numberRe.lastIndex = 0;\n",
              "    var n = d3_time_numberRe.exec(string.slice(i, i + 1));\n",
              "    return n ? (date.w = +n[0], i + n[0].length) : -1;\n",
              "  }\n",
              "  function d3_time_parseWeekNumberSunday(date, string, i) {\n",
              "    d3_time_numberRe.lastIndex = 0;\n",
              "    var n = d3_time_numberRe.exec(string.slice(i));\n",
              "    return n ? (date.U = +n[0], i + n[0].length) : -1;\n",
              "  }\n",
              "  function d3_time_parseWeekNumberMonday(date, string, i) {\n",
              "    d3_time_numberRe.lastIndex = 0;\n",
              "    var n = d3_time_numberRe.exec(string.slice(i));\n",
              "    return n ? (date.W = +n[0], i + n[0].length) : -1;\n",
              "  }\n",
              "  function d3_time_parseFullYear(date, string, i) {\n",
              "    d3_time_numberRe.lastIndex = 0;\n",
              "    var n = d3_time_numberRe.exec(string.slice(i, i + 4));\n",
              "    return n ? (date.y = +n[0], i + n[0].length) : -1;\n",
              "  }\n",
              "  function d3_time_parseYear(date, string, i) {\n",
              "    d3_time_numberRe.lastIndex = 0;\n",
              "    var n = d3_time_numberRe.exec(string.slice(i, i + 2));\n",
              "    return n ? (date.y = d3_time_expandYear(+n[0]), i + n[0].length) : -1;\n",
              "  }\n",
              "  function d3_time_parseZone(date, string, i) {\n",
              "    return /^[+-]\\d{4}$/.test(string = string.slice(i, i + 5)) ? (date.Z = -string, \n",
              "    i + 5) : -1;\n",
              "  }\n",
              "  function d3_time_expandYear(d) {\n",
              "    return d + (d > 68 ? 1900 : 2e3);\n",
              "  }\n",
              "  function d3_time_parseMonthNumber(date, string, i) {\n",
              "    d3_time_numberRe.lastIndex = 0;\n",
              "    var n = d3_time_numberRe.exec(string.slice(i, i + 2));\n",
              "    return n ? (date.m = n[0] - 1, i + n[0].length) : -1;\n",
              "  }\n",
              "  function d3_time_parseDay(date, string, i) {\n",
              "    d3_time_numberRe.lastIndex = 0;\n",
              "    var n = d3_time_numberRe.exec(string.slice(i, i + 2));\n",
              "    return n ? (date.d = +n[0], i + n[0].length) : -1;\n",
              "  }\n",
              "  function d3_time_parseDayOfYear(date, string, i) {\n",
              "    d3_time_numberRe.lastIndex = 0;\n",
              "    var n = d3_time_numberRe.exec(string.slice(i, i + 3));\n",
              "    return n ? (date.j = +n[0], i + n[0].length) : -1;\n",
              "  }\n",
              "  function d3_time_parseHour24(date, string, i) {\n",
              "    d3_time_numberRe.lastIndex = 0;\n",
              "    var n = d3_time_numberRe.exec(string.slice(i, i + 2));\n",
              "    return n ? (date.H = +n[0], i + n[0].length) : -1;\n",
              "  }\n",
              "  function d3_time_parseMinutes(date, string, i) {\n",
              "    d3_time_numberRe.lastIndex = 0;\n",
              "    var n = d3_time_numberRe.exec(string.slice(i, i + 2));\n",
              "    return n ? (date.M = +n[0], i + n[0].length) : -1;\n",
              "  }\n",
              "  function d3_time_parseSeconds(date, string, i) {\n",
              "    d3_time_numberRe.lastIndex = 0;\n",
              "    var n = d3_time_numberRe.exec(string.slice(i, i + 2));\n",
              "    return n ? (date.S = +n[0], i + n[0].length) : -1;\n",
              "  }\n",
              "  function d3_time_parseMilliseconds(date, string, i) {\n",
              "    d3_time_numberRe.lastIndex = 0;\n",
              "    var n = d3_time_numberRe.exec(string.slice(i, i + 3));\n",
              "    return n ? (date.L = +n[0], i + n[0].length) : -1;\n",
              "  }\n",
              "  function d3_time_zone(d) {\n",
              "    var z = d.getTimezoneOffset(), zs = z > 0 ? \"-\" : \"+\", zh = abs(z) / 60 | 0, zm = abs(z) % 60;\n",
              "    return zs + d3_time_formatPad(zh, \"0\", 2) + d3_time_formatPad(zm, \"0\", 2);\n",
              "  }\n",
              "  function d3_time_parseLiteralPercent(date, string, i) {\n",
              "    d3_time_percentRe.lastIndex = 0;\n",
              "    var n = d3_time_percentRe.exec(string.slice(i, i + 1));\n",
              "    return n ? i + n[0].length : -1;\n",
              "  }\n",
              "  function d3_time_formatMulti(formats) {\n",
              "    var n = formats.length, i = -1;\n",
              "    while (++i < n) formats[i][0] = this(formats[i][0]);\n",
              "    return function(date) {\n",
              "      var i = 0, f = formats[i];\n",
              "      while (!f[1](date)) f = formats[++i];\n",
              "      return f[0](date);\n",
              "    };\n",
              "  }\n",
              "  d3.locale = function(locale) {\n",
              "    return {\n",
              "      numberFormat: d3_locale_numberFormat(locale),\n",
              "      timeFormat: d3_locale_timeFormat(locale)\n",
              "    };\n",
              "  };\n",
              "  var d3_locale_enUS = d3.locale({\n",
              "    decimal: \".\",\n",
              "    thousands: \",\",\n",
              "    grouping: [ 3 ],\n",
              "    currency: [ \"$\", \"\" ],\n",
              "    dateTime: \"%a %b %e %X %Y\",\n",
              "    date: \"%m/%d/%Y\",\n",
              "    time: \"%H:%M:%S\",\n",
              "    periods: [ \"AM\", \"PM\" ],\n",
              "    days: [ \"Sunday\", \"Monday\", \"Tuesday\", \"Wednesday\", \"Thursday\", \"Friday\", \"Saturday\" ],\n",
              "    shortDays: [ \"Sun\", \"Mon\", \"Tue\", \"Wed\", \"Thu\", \"Fri\", \"Sat\" ],\n",
              "    months: [ \"January\", \"February\", \"March\", \"April\", \"May\", \"June\", \"July\", \"August\", \"September\", \"October\", \"November\", \"December\" ],\n",
              "    shortMonths: [ \"Jan\", \"Feb\", \"Mar\", \"Apr\", \"May\", \"Jun\", \"Jul\", \"Aug\", \"Sep\", \"Oct\", \"Nov\", \"Dec\" ]\n",
              "  });\n",
              "  d3.format = d3_locale_enUS.numberFormat;\n",
              "  d3.geo = {};\n",
              "  function d3_adder() {}\n",
              "  d3_adder.prototype = {\n",
              "    s: 0,\n",
              "    t: 0,\n",
              "    add: function(y) {\n",
              "      d3_adderSum(y, this.t, d3_adderTemp);\n",
              "      d3_adderSum(d3_adderTemp.s, this.s, this);\n",
              "      if (this.s) this.t += d3_adderTemp.t; else this.s = d3_adderTemp.t;\n",
              "    },\n",
              "    reset: function() {\n",
              "      this.s = this.t = 0;\n",
              "    },\n",
              "    valueOf: function() {\n",
              "      return this.s;\n",
              "    }\n",
              "  };\n",
              "  var d3_adderTemp = new d3_adder();\n",
              "  function d3_adderSum(a, b, o) {\n",
              "    var x = o.s = a + b, bv = x - a, av = x - bv;\n",
              "    o.t = a - av + (b - bv);\n",
              "  }\n",
              "  d3.geo.stream = function(object, listener) {\n",
              "    if (object && d3_geo_streamObjectType.hasOwnProperty(object.type)) {\n",
              "      d3_geo_streamObjectType[object.type](object, listener);\n",
              "    } else {\n",
              "      d3_geo_streamGeometry(object, listener);\n",
              "    }\n",
              "  };\n",
              "  function d3_geo_streamGeometry(geometry, listener) {\n",
              "    if (geometry && d3_geo_streamGeometryType.hasOwnProperty(geometry.type)) {\n",
              "      d3_geo_streamGeometryType[geometry.type](geometry, listener);\n",
              "    }\n",
              "  }\n",
              "  var d3_geo_streamObjectType = {\n",
              "    Feature: function(feature, listener) {\n",
              "      d3_geo_streamGeometry(feature.geometry, listener);\n",
              "    },\n",
              "    FeatureCollection: function(object, listener) {\n",
              "      var features = object.features, i = -1, n = features.length;\n",
              "      while (++i < n) d3_geo_streamGeometry(features[i].geometry, listener);\n",
              "    }\n",
              "  };\n",
              "  var d3_geo_streamGeometryType = {\n",
              "    Sphere: function(object, listener) {\n",
              "      listener.sphere();\n",
              "    },\n",
              "    Point: function(object, listener) {\n",
              "      object = object.coordinates;\n",
              "      listener.point(object[0], object[1], object[2]);\n",
              "    },\n",
              "    MultiPoint: function(object, listener) {\n",
              "      var coordinates = object.coordinates, i = -1, n = coordinates.length;\n",
              "      while (++i < n) object = coordinates[i], listener.point(object[0], object[1], object[2]);\n",
              "    },\n",
              "    LineString: function(object, listener) {\n",
              "      d3_geo_streamLine(object.coordinates, listener, 0);\n",
              "    },\n",
              "    MultiLineString: function(object, listener) {\n",
              "      var coordinates = object.coordinates, i = -1, n = coordinates.length;\n",
              "      while (++i < n) d3_geo_streamLine(coordinates[i], listener, 0);\n",
              "    },\n",
              "    Polygon: function(object, listener) {\n",
              "      d3_geo_streamPolygon(object.coordinates, listener);\n",
              "    },\n",
              "    MultiPolygon: function(object, listener) {\n",
              "      var coordinates = object.coordinates, i = -1, n = coordinates.length;\n",
              "      while (++i < n) d3_geo_streamPolygon(coordinates[i], listener);\n",
              "    },\n",
              "    GeometryCollection: function(object, listener) {\n",
              "      var geometries = object.geometries, i = -1, n = geometries.length;\n",
              "      while (++i < n) d3_geo_streamGeometry(geometries[i], listener);\n",
              "    }\n",
              "  };\n",
              "  function d3_geo_streamLine(coordinates, listener, closed) {\n",
              "    var i = -1, n = coordinates.length - closed, coordinate;\n",
              "    listener.lineStart();\n",
              "    while (++i < n) coordinate = coordinates[i], listener.point(coordinate[0], coordinate[1], coordinate[2]);\n",
              "    listener.lineEnd();\n",
              "  }\n",
              "  function d3_geo_streamPolygon(coordinates, listener) {\n",
              "    var i = -1, n = coordinates.length;\n",
              "    listener.polygonStart();\n",
              "    while (++i < n) d3_geo_streamLine(coordinates[i], listener, 1);\n",
              "    listener.polygonEnd();\n",
              "  }\n",
              "  d3.geo.area = function(object) {\n",
              "    d3_geo_areaSum = 0;\n",
              "    d3.geo.stream(object, d3_geo_area);\n",
              "    return d3_geo_areaSum;\n",
              "  };\n",
              "  var d3_geo_areaSum, d3_geo_areaRingSum = new d3_adder();\n",
              "  var d3_geo_area = {\n",
              "    sphere: function() {\n",
              "      d3_geo_areaSum += 4 * π;\n",
              "    },\n",
              "    point: d3_noop,\n",
              "    lineStart: d3_noop,\n",
              "    lineEnd: d3_noop,\n",
              "    polygonStart: function() {\n",
              "      d3_geo_areaRingSum.reset();\n",
              "      d3_geo_area.lineStart = d3_geo_areaRingStart;\n",
              "    },\n",
              "    polygonEnd: function() {\n",
              "      var area = 2 * d3_geo_areaRingSum;\n",
              "      d3_geo_areaSum += area < 0 ? 4 * π + area : area;\n",
              "      d3_geo_area.lineStart = d3_geo_area.lineEnd = d3_geo_area.point = d3_noop;\n",
              "    }\n",
              "  };\n",
              "  function d3_geo_areaRingStart() {\n",
              "    var λ00, φ00, λ0, cosφ0, sinφ0;\n",
              "    d3_geo_area.point = function(λ, φ) {\n",
              "      d3_geo_area.point = nextPoint;\n",
              "      λ0 = (λ00 = λ) * d3_radians, cosφ0 = Math.cos(φ = (φ00 = φ) * d3_radians / 2 + π / 4), \n",
              "      sinφ0 = Math.sin(φ);\n",
              "    };\n",
              "    function nextPoint(λ, φ) {\n",
              "      λ *= d3_radians;\n",
              "      φ = φ * d3_radians / 2 + π / 4;\n",
              "      var dλ = λ - λ0, sdλ = dλ >= 0 ? 1 : -1, adλ = sdλ * dλ, cosφ = Math.cos(φ), sinφ = Math.sin(φ), k = sinφ0 * sinφ, u = cosφ0 * cosφ + k * Math.cos(adλ), v = k * sdλ * Math.sin(adλ);\n",
              "      d3_geo_areaRingSum.add(Math.atan2(v, u));\n",
              "      λ0 = λ, cosφ0 = cosφ, sinφ0 = sinφ;\n",
              "    }\n",
              "    d3_geo_area.lineEnd = function() {\n",
              "      nextPoint(λ00, φ00);\n",
              "    };\n",
              "  }\n",
              "  function d3_geo_cartesian(spherical) {\n",
              "    var λ = spherical[0], φ = spherical[1], cosφ = Math.cos(φ);\n",
              "    return [ cosφ * Math.cos(λ), cosφ * Math.sin(λ), Math.sin(φ) ];\n",
              "  }\n",
              "  function d3_geo_cartesianDot(a, b) {\n",
              "    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];\n",
              "  }\n",
              "  function d3_geo_cartesianCross(a, b) {\n",
              "    return [ a[1] * b[2] - a[2] * b[1], a[2] * b[0] - a[0] * b[2], a[0] * b[1] - a[1] * b[0] ];\n",
              "  }\n",
              "  function d3_geo_cartesianAdd(a, b) {\n",
              "    a[0] += b[0];\n",
              "    a[1] += b[1];\n",
              "    a[2] += b[2];\n",
              "  }\n",
              "  function d3_geo_cartesianScale(vector, k) {\n",
              "    return [ vector[0] * k, vector[1] * k, vector[2] * k ];\n",
              "  }\n",
              "  function d3_geo_cartesianNormalize(d) {\n",
              "    var l = Math.sqrt(d[0] * d[0] + d[1] * d[1] + d[2] * d[2]);\n",
              "    d[0] /= l;\n",
              "    d[1] /= l;\n",
              "    d[2] /= l;\n",
              "  }\n",
              "  function d3_geo_spherical(cartesian) {\n",
              "    return [ Math.atan2(cartesian[1], cartesian[0]), d3_asin(cartesian[2]) ];\n",
              "  }\n",
              "  function d3_geo_sphericalEqual(a, b) {\n",
              "    return abs(a[0] - b[0]) < ε && abs(a[1] - b[1]) < ε;\n",
              "  }\n",
              "  d3.geo.bounds = function() {\n",
              "    var λ0, φ0, λ1, φ1, λ_, λ__, φ__, p0, dλSum, ranges, range;\n",
              "    var bound = {\n",
              "      point: point,\n",
              "      lineStart: lineStart,\n",
              "      lineEnd: lineEnd,\n",
              "      polygonStart: function() {\n",
              "        bound.point = ringPoint;\n",
              "        bound.lineStart = ringStart;\n",
              "        bound.lineEnd = ringEnd;\n",
              "        dλSum = 0;\n",
              "        d3_geo_area.polygonStart();\n",
              "      },\n",
              "      polygonEnd: function() {\n",
              "        d3_geo_area.polygonEnd();\n",
              "        bound.point = point;\n",
              "        bound.lineStart = lineStart;\n",
              "        bound.lineEnd = lineEnd;\n",
              "        if (d3_geo_areaRingSum < 0) λ0 = -(λ1 = 180), φ0 = -(φ1 = 90); else if (dλSum > ε) φ1 = 90; else if (dλSum < -ε) φ0 = -90;\n",
              "        range[0] = λ0, range[1] = λ1;\n",
              "      }\n",
              "    };\n",
              "    function point(λ, φ) {\n",
              "      ranges.push(range = [ λ0 = λ, λ1 = λ ]);\n",
              "      if (φ < φ0) φ0 = φ;\n",
              "      if (φ > φ1) φ1 = φ;\n",
              "    }\n",
              "    function linePoint(λ, φ) {\n",
              "      var p = d3_geo_cartesian([ λ * d3_radians, φ * d3_radians ]);\n",
              "      if (p0) {\n",
              "        var normal = d3_geo_cartesianCross(p0, p), equatorial = [ normal[1], -normal[0], 0 ], inflection = d3_geo_cartesianCross(equatorial, normal);\n",
              "        d3_geo_cartesianNormalize(inflection);\n",
              "        inflection = d3_geo_spherical(inflection);\n",
              "        var dλ = λ - λ_, s = dλ > 0 ? 1 : -1, λi = inflection[0] * d3_degrees * s, antimeridian = abs(dλ) > 180;\n",
              "        if (antimeridian ^ (s * λ_ < λi && λi < s * λ)) {\n",
              "          var φi = inflection[1] * d3_degrees;\n",
              "          if (φi > φ1) φ1 = φi;\n",
              "        } else if (λi = (λi + 360) % 360 - 180, antimeridian ^ (s * λ_ < λi && λi < s * λ)) {\n",
              "          var φi = -inflection[1] * d3_degrees;\n",
              "          if (φi < φ0) φ0 = φi;\n",
              "        } else {\n",
              "          if (φ < φ0) φ0 = φ;\n",
              "          if (φ > φ1) φ1 = φ;\n",
              "        }\n",
              "        if (antimeridian) {\n",
              "          if (λ < λ_) {\n",
              "            if (angle(λ0, λ) > angle(λ0, λ1)) λ1 = λ;\n",
              "          } else {\n",
              "            if (angle(λ, λ1) > angle(λ0, λ1)) λ0 = λ;\n",
              "          }\n",
              "        } else {\n",
              "          if (λ1 >= λ0) {\n",
              "            if (λ < λ0) λ0 = λ;\n",
              "            if (λ > λ1) λ1 = λ;\n",
              "          } else {\n",
              "            if (λ > λ_) {\n",
              "              if (angle(λ0, λ) > angle(λ0, λ1)) λ1 = λ;\n",
              "            } else {\n",
              "              if (angle(λ, λ1) > angle(λ0, λ1)) λ0 = λ;\n",
              "            }\n",
              "          }\n",
              "        }\n",
              "      } else {\n",
              "        point(λ, φ);\n",
              "      }\n",
              "      p0 = p, λ_ = λ;\n",
              "    }\n",
              "    function lineStart() {\n",
              "      bound.point = linePoint;\n",
              "    }\n",
              "    function lineEnd() {\n",
              "      range[0] = λ0, range[1] = λ1;\n",
              "      bound.point = point;\n",
              "      p0 = null;\n",
              "    }\n",
              "    function ringPoint(λ, φ) {\n",
              "      if (p0) {\n",
              "        var dλ = λ - λ_;\n",
              "        dλSum += abs(dλ) > 180 ? dλ + (dλ > 0 ? 360 : -360) : dλ;\n",
              "      } else λ__ = λ, φ__ = φ;\n",
              "      d3_geo_area.point(λ, φ);\n",
              "      linePoint(λ, φ);\n",
              "    }\n",
              "    function ringStart() {\n",
              "      d3_geo_area.lineStart();\n",
              "    }\n",
              "    function ringEnd() {\n",
              "      ringPoint(λ__, φ__);\n",
              "      d3_geo_area.lineEnd();\n",
              "      if (abs(dλSum) > ε) λ0 = -(λ1 = 180);\n",
              "      range[0] = λ0, range[1] = λ1;\n",
              "      p0 = null;\n",
              "    }\n",
              "    function angle(λ0, λ1) {\n",
              "      return (λ1 -= λ0) < 0 ? λ1 + 360 : λ1;\n",
              "    }\n",
              "    function compareRanges(a, b) {\n",
              "      return a[0] - b[0];\n",
              "    }\n",
              "    function withinRange(x, range) {\n",
              "      return range[0] <= range[1] ? range[0] <= x && x <= range[1] : x < range[0] || range[1] < x;\n",
              "    }\n",
              "    return function(feature) {\n",
              "      φ1 = λ1 = -(λ0 = φ0 = Infinity);\n",
              "      ranges = [];\n",
              "      d3.geo.stream(feature, bound);\n",
              "      var n = ranges.length;\n",
              "      if (n) {\n",
              "        ranges.sort(compareRanges);\n",
              "        for (var i = 1, a = ranges[0], b, merged = [ a ]; i < n; ++i) {\n",
              "          b = ranges[i];\n",
              "          if (withinRange(b[0], a) || withinRange(b[1], a)) {\n",
              "            if (angle(a[0], b[1]) > angle(a[0], a[1])) a[1] = b[1];\n",
              "            if (angle(b[0], a[1]) > angle(a[0], a[1])) a[0] = b[0];\n",
              "          } else {\n",
              "            merged.push(a = b);\n",
              "          }\n",
              "        }\n",
              "        var best = -Infinity, dλ;\n",
              "        for (var n = merged.length - 1, i = 0, a = merged[n], b; i <= n; a = b, ++i) {\n",
              "          b = merged[i];\n",
              "          if ((dλ = angle(a[1], b[0])) > best) best = dλ, λ0 = b[0], λ1 = a[1];\n",
              "        }\n",
              "      }\n",
              "      ranges = range = null;\n",
              "      return λ0 === Infinity || φ0 === Infinity ? [ [ NaN, NaN ], [ NaN, NaN ] ] : [ [ λ0, φ0 ], [ λ1, φ1 ] ];\n",
              "    };\n",
              "  }();\n",
              "  d3.geo.centroid = function(object) {\n",
              "    d3_geo_centroidW0 = d3_geo_centroidW1 = d3_geo_centroidX0 = d3_geo_centroidY0 = d3_geo_centroidZ0 = d3_geo_centroidX1 = d3_geo_centroidY1 = d3_geo_centroidZ1 = d3_geo_centroidX2 = d3_geo_centroidY2 = d3_geo_centroidZ2 = 0;\n",
              "    d3.geo.stream(object, d3_geo_centroid);\n",
              "    var x = d3_geo_centroidX2, y = d3_geo_centroidY2, z = d3_geo_centroidZ2, m = x * x + y * y + z * z;\n",
              "    if (m < ε2) {\n",
              "      x = d3_geo_centroidX1, y = d3_geo_centroidY1, z = d3_geo_centroidZ1;\n",
              "      if (d3_geo_centroidW1 < ε) x = d3_geo_centroidX0, y = d3_geo_centroidY0, z = d3_geo_centroidZ0;\n",
              "      m = x * x + y * y + z * z;\n",
              "      if (m < ε2) return [ NaN, NaN ];\n",
              "    }\n",
              "    return [ Math.atan2(y, x) * d3_degrees, d3_asin(z / Math.sqrt(m)) * d3_degrees ];\n",
              "  };\n",
              "  var d3_geo_centroidW0, d3_geo_centroidW1, d3_geo_centroidX0, d3_geo_centroidY0, d3_geo_centroidZ0, d3_geo_centroidX1, d3_geo_centroidY1, d3_geo_centroidZ1, d3_geo_centroidX2, d3_geo_centroidY2, d3_geo_centroidZ2;\n",
              "  var d3_geo_centroid = {\n",
              "    sphere: d3_noop,\n",
              "    point: d3_geo_centroidPoint,\n",
              "    lineStart: d3_geo_centroidLineStart,\n",
              "    lineEnd: d3_geo_centroidLineEnd,\n",
              "    polygonStart: function() {\n",
              "      d3_geo_centroid.lineStart = d3_geo_centroidRingStart;\n",
              "    },\n",
              "    polygonEnd: function() {\n",
              "      d3_geo_centroid.lineStart = d3_geo_centroidLineStart;\n",
              "    }\n",
              "  };\n",
              "  function d3_geo_centroidPoint(λ, φ) {\n",
              "    λ *= d3_radians;\n",
              "    var cosφ = Math.cos(φ *= d3_radians);\n",
              "    d3_geo_centroidPointXYZ(cosφ * Math.cos(λ), cosφ * Math.sin(λ), Math.sin(φ));\n",
              "  }\n",
              "  function d3_geo_centroidPointXYZ(x, y, z) {\n",
              "    ++d3_geo_centroidW0;\n",
              "    d3_geo_centroidX0 += (x - d3_geo_centroidX0) / d3_geo_centroidW0;\n",
              "    d3_geo_centroidY0 += (y - d3_geo_centroidY0) / d3_geo_centroidW0;\n",
              "    d3_geo_centroidZ0 += (z - d3_geo_centroidZ0) / d3_geo_centroidW0;\n",
              "  }\n",
              "  function d3_geo_centroidLineStart() {\n",
              "    var x0, y0, z0;\n",
              "    d3_geo_centroid.point = function(λ, φ) {\n",
              "      λ *= d3_radians;\n",
              "      var cosφ = Math.cos(φ *= d3_radians);\n",
              "      x0 = cosφ * Math.cos(λ);\n",
              "      y0 = cosφ * Math.sin(λ);\n",
              "      z0 = Math.sin(φ);\n",
              "      d3_geo_centroid.point = nextPoint;\n",
              "      d3_geo_centroidPointXYZ(x0, y0, z0);\n",
              "    };\n",
              "    function nextPoint(λ, φ) {\n",
              "      λ *= d3_radians;\n",
              "      var cosφ = Math.cos(φ *= d3_radians), x = cosφ * Math.cos(λ), y = cosφ * Math.sin(λ), z = Math.sin(φ), w = Math.atan2(Math.sqrt((w = y0 * z - z0 * y) * w + (w = z0 * x - x0 * z) * w + (w = x0 * y - y0 * x) * w), x0 * x + y0 * y + z0 * z);\n",
              "      d3_geo_centroidW1 += w;\n",
              "      d3_geo_centroidX1 += w * (x0 + (x0 = x));\n",
              "      d3_geo_centroidY1 += w * (y0 + (y0 = y));\n",
              "      d3_geo_centroidZ1 += w * (z0 + (z0 = z));\n",
              "      d3_geo_centroidPointXYZ(x0, y0, z0);\n",
              "    }\n",
              "  }\n",
              "  function d3_geo_centroidLineEnd() {\n",
              "    d3_geo_centroid.point = d3_geo_centroidPoint;\n",
              "  }\n",
              "  function d3_geo_centroidRingStart() {\n",
              "    var λ00, φ00, x0, y0, z0;\n",
              "    d3_geo_centroid.point = function(λ, φ) {\n",
              "      λ00 = λ, φ00 = φ;\n",
              "      d3_geo_centroid.point = nextPoint;\n",
              "      λ *= d3_radians;\n",
              "      var cosφ = Math.cos(φ *= d3_radians);\n",
              "      x0 = cosφ * Math.cos(λ);\n",
              "      y0 = cosφ * Math.sin(λ);\n",
              "      z0 = Math.sin(φ);\n",
              "      d3_geo_centroidPointXYZ(x0, y0, z0);\n",
              "    };\n",
              "    d3_geo_centroid.lineEnd = function() {\n",
              "      nextPoint(λ00, φ00);\n",
              "      d3_geo_centroid.lineEnd = d3_geo_centroidLineEnd;\n",
              "      d3_geo_centroid.point = d3_geo_centroidPoint;\n",
              "    };\n",
              "    function nextPoint(λ, φ) {\n",
              "      λ *= d3_radians;\n",
              "      var cosφ = Math.cos(φ *= d3_radians), x = cosφ * Math.cos(λ), y = cosφ * Math.sin(λ), z = Math.sin(φ), cx = y0 * z - z0 * y, cy = z0 * x - x0 * z, cz = x0 * y - y0 * x, m = Math.sqrt(cx * cx + cy * cy + cz * cz), u = x0 * x + y0 * y + z0 * z, v = m && -d3_acos(u) / m, w = Math.atan2(m, u);\n",
              "      d3_geo_centroidX2 += v * cx;\n",
              "      d3_geo_centroidY2 += v * cy;\n",
              "      d3_geo_centroidZ2 += v * cz;\n",
              "      d3_geo_centroidW1 += w;\n",
              "      d3_geo_centroidX1 += w * (x0 + (x0 = x));\n",
              "      d3_geo_centroidY1 += w * (y0 + (y0 = y));\n",
              "      d3_geo_centroidZ1 += w * (z0 + (z0 = z));\n",
              "      d3_geo_centroidPointXYZ(x0, y0, z0);\n",
              "    }\n",
              "  }\n",
              "  function d3_geo_compose(a, b) {\n",
              "    function compose(x, y) {\n",
              "      return x = a(x, y), b(x[0], x[1]);\n",
              "    }\n",
              "    if (a.invert && b.invert) compose.invert = function(x, y) {\n",
              "      return x = b.invert(x, y), x && a.invert(x[0], x[1]);\n",
              "    };\n",
              "    return compose;\n",
              "  }\n",
              "  function d3_true() {\n",
              "    return true;\n",
              "  }\n",
              "  function d3_geo_clipPolygon(segments, compare, clipStartInside, interpolate, listener) {\n",
              "    var subject = [], clip = [];\n",
              "    segments.forEach(function(segment) {\n",
              "      if ((n = segment.length - 1) <= 0) return;\n",
              "      var n, p0 = segment[0], p1 = segment[n];\n",
              "      if (d3_geo_sphericalEqual(p0, p1)) {\n",
              "        listener.lineStart();\n",
              "        for (var i = 0; i < n; ++i) listener.point((p0 = segment[i])[0], p0[1]);\n",
              "        listener.lineEnd();\n",
              "        return;\n",
              "      }\n",
              "      var a = new d3_geo_clipPolygonIntersection(p0, segment, null, true), b = new d3_geo_clipPolygonIntersection(p0, null, a, false);\n",
              "      a.o = b;\n",
              "      subject.push(a);\n",
              "      clip.push(b);\n",
              "      a = new d3_geo_clipPolygonIntersection(p1, segment, null, false);\n",
              "      b = new d3_geo_clipPolygonIntersection(p1, null, a, true);\n",
              "      a.o = b;\n",
              "      subject.push(a);\n",
              "      clip.push(b);\n",
              "    });\n",
              "    clip.sort(compare);\n",
              "    d3_geo_clipPolygonLinkCircular(subject);\n",
              "    d3_geo_clipPolygonLinkCircular(clip);\n",
              "    if (!subject.length) return;\n",
              "    for (var i = 0, entry = clipStartInside, n = clip.length; i < n; ++i) {\n",
              "      clip[i].e = entry = !entry;\n",
              "    }\n",
              "    var start = subject[0], points, point;\n",
              "    while (1) {\n",
              "      var current = start, isSubject = true;\n",
              "      while (current.v) if ((current = current.n) === start) return;\n",
              "      points = current.z;\n",
              "      listener.lineStart();\n",
              "      do {\n",
              "        current.v = current.o.v = true;\n",
              "        if (current.e) {\n",
              "          if (isSubject) {\n",
              "            for (var i = 0, n = points.length; i < n; ++i) listener.point((point = points[i])[0], point[1]);\n",
              "          } else {\n",
              "            interpolate(current.x, current.n.x, 1, listener);\n",
              "          }\n",
              "          current = current.n;\n",
              "        } else {\n",
              "          if (isSubject) {\n",
              "            points = current.p.z;\n",
              "            for (var i = points.length - 1; i >= 0; --i) listener.point((point = points[i])[0], point[1]);\n",
              "          } else {\n",
              "            interpolate(current.x, current.p.x, -1, listener);\n",
              "          }\n",
              "          current = current.p;\n",
              "        }\n",
              "        current = current.o;\n",
              "        points = current.z;\n",
              "        isSubject = !isSubject;\n",
              "      } while (!current.v);\n",
              "      listener.lineEnd();\n",
              "    }\n",
              "  }\n",
              "  function d3_geo_clipPolygonLinkCircular(array) {\n",
              "    if (!(n = array.length)) return;\n",
              "    var n, i = 0, a = array[0], b;\n",
              "    while (++i < n) {\n",
              "      a.n = b = array[i];\n",
              "      b.p = a;\n",
              "      a = b;\n",
              "    }\n",
              "    a.n = b = array[0];\n",
              "    b.p = a;\n",
              "  }\n",
              "  function d3_geo_clipPolygonIntersection(point, points, other, entry) {\n",
              "    this.x = point;\n",
              "    this.z = points;\n",
              "    this.o = other;\n",
              "    this.e = entry;\n",
              "    this.v = false;\n",
              "    this.n = this.p = null;\n",
              "  }\n",
              "  function d3_geo_clip(pointVisible, clipLine, interpolate, clipStart) {\n",
              "    return function(rotate, listener) {\n",
              "      var line = clipLine(listener), rotatedClipStart = rotate.invert(clipStart[0], clipStart[1]);\n",
              "      var clip = {\n",
              "        point: point,\n",
              "        lineStart: lineStart,\n",
              "        lineEnd: lineEnd,\n",
              "        polygonStart: function() {\n",
              "          clip.point = pointRing;\n",
              "          clip.lineStart = ringStart;\n",
              "          clip.lineEnd = ringEnd;\n",
              "          segments = [];\n",
              "          polygon = [];\n",
              "        },\n",
              "        polygonEnd: function() {\n",
              "          clip.point = point;\n",
              "          clip.lineStart = lineStart;\n",
              "          clip.lineEnd = lineEnd;\n",
              "          segments = d3.merge(segments);\n",
              "          var clipStartInside = d3_geo_pointInPolygon(rotatedClipStart, polygon);\n",
              "          if (segments.length) {\n",
              "            if (!polygonStarted) listener.polygonStart(), polygonStarted = true;\n",
              "            d3_geo_clipPolygon(segments, d3_geo_clipSort, clipStartInside, interpolate, listener);\n",
              "          } else if (clipStartInside) {\n",
              "            if (!polygonStarted) listener.polygonStart(), polygonStarted = true;\n",
              "            listener.lineStart();\n",
              "            interpolate(null, null, 1, listener);\n",
              "            listener.lineEnd();\n",
              "          }\n",
              "          if (polygonStarted) listener.polygonEnd(), polygonStarted = false;\n",
              "          segments = polygon = null;\n",
              "        },\n",
              "        sphere: function() {\n",
              "          listener.polygonStart();\n",
              "          listener.lineStart();\n",
              "          interpolate(null, null, 1, listener);\n",
              "          listener.lineEnd();\n",
              "          listener.polygonEnd();\n",
              "        }\n",
              "      };\n",
              "      function point(λ, φ) {\n",
              "        var point = rotate(λ, φ);\n",
              "        if (pointVisible(λ = point[0], φ = point[1])) listener.point(λ, φ);\n",
              "      }\n",
              "      function pointLine(λ, φ) {\n",
              "        var point = rotate(λ, φ);\n",
              "        line.point(point[0], point[1]);\n",
              "      }\n",
              "      function lineStart() {\n",
              "        clip.point = pointLine;\n",
              "        line.lineStart();\n",
              "      }\n",
              "      function lineEnd() {\n",
              "        clip.point = point;\n",
              "        line.lineEnd();\n",
              "      }\n",
              "      var segments;\n",
              "      var buffer = d3_geo_clipBufferListener(), ringListener = clipLine(buffer), polygonStarted = false, polygon, ring;\n",
              "      function pointRing(λ, φ) {\n",
              "        ring.push([ λ, φ ]);\n",
              "        var point = rotate(λ, φ);\n",
              "        ringListener.point(point[0], point[1]);\n",
              "      }\n",
              "      function ringStart() {\n",
              "        ringListener.lineStart();\n",
              "        ring = [];\n",
              "      }\n",
              "      function ringEnd() {\n",
              "        pointRing(ring[0][0], ring[0][1]);\n",
              "        ringListener.lineEnd();\n",
              "        var clean = ringListener.clean(), ringSegments = buffer.buffer(), segment, n = ringSegments.length;\n",
              "        ring.pop();\n",
              "        polygon.push(ring);\n",
              "        ring = null;\n",
              "        if (!n) return;\n",
              "        if (clean & 1) {\n",
              "          segment = ringSegments[0];\n",
              "          var n = segment.length - 1, i = -1, point;\n",
              "          if (n > 0) {\n",
              "            if (!polygonStarted) listener.polygonStart(), polygonStarted = true;\n",
              "            listener.lineStart();\n",
              "            while (++i < n) listener.point((point = segment[i])[0], point[1]);\n",
              "            listener.lineEnd();\n",
              "          }\n",
              "          return;\n",
              "        }\n",
              "        if (n > 1 && clean & 2) ringSegments.push(ringSegments.pop().concat(ringSegments.shift()));\n",
              "        segments.push(ringSegments.filter(d3_geo_clipSegmentLength1));\n",
              "      }\n",
              "      return clip;\n",
              "    };\n",
              "  }\n",
              "  function d3_geo_clipSegmentLength1(segment) {\n",
              "    return segment.length > 1;\n",
              "  }\n",
              "  function d3_geo_clipBufferListener() {\n",
              "    var lines = [], line;\n",
              "    return {\n",
              "      lineStart: function() {\n",
              "        lines.push(line = []);\n",
              "      },\n",
              "      point: function(λ, φ) {\n",
              "        line.push([ λ, φ ]);\n",
              "      },\n",
              "      lineEnd: d3_noop,\n",
              "      buffer: function() {\n",
              "        var buffer = lines;\n",
              "        lines = [];\n",
              "        line = null;\n",
              "        return buffer;\n",
              "      },\n",
              "      rejoin: function() {\n",
              "        if (lines.length > 1) lines.push(lines.pop().concat(lines.shift()));\n",
              "      }\n",
              "    };\n",
              "  }\n",
              "  function d3_geo_clipSort(a, b) {\n",
              "    return ((a = a.x)[0] < 0 ? a[1] - halfπ - ε : halfπ - a[1]) - ((b = b.x)[0] < 0 ? b[1] - halfπ - ε : halfπ - b[1]);\n",
              "  }\n",
              "  var d3_geo_clipAntimeridian = d3_geo_clip(d3_true, d3_geo_clipAntimeridianLine, d3_geo_clipAntimeridianInterpolate, [ -π, -π / 2 ]);\n",
              "  function d3_geo_clipAntimeridianLine(listener) {\n",
              "    var λ0 = NaN, φ0 = NaN, sλ0 = NaN, clean;\n",
              "    return {\n",
              "      lineStart: function() {\n",
              "        listener.lineStart();\n",
              "        clean = 1;\n",
              "      },\n",
              "      point: function(λ1, φ1) {\n",
              "        var sλ1 = λ1 > 0 ? π : -π, dλ = abs(λ1 - λ0);\n",
              "        if (abs(dλ - π) < ε) {\n",
              "          listener.point(λ0, φ0 = (φ0 + φ1) / 2 > 0 ? halfπ : -halfπ);\n",
              "          listener.point(sλ0, φ0);\n",
              "          listener.lineEnd();\n",
              "          listener.lineStart();\n",
              "          listener.point(sλ1, φ0);\n",
              "          listener.point(λ1, φ0);\n",
              "          clean = 0;\n",
              "        } else if (sλ0 !== sλ1 && dλ >= π) {\n",
              "          if (abs(λ0 - sλ0) < ε) λ0 -= sλ0 * ε;\n",
              "          if (abs(λ1 - sλ1) < ε) λ1 -= sλ1 * ε;\n",
              "          φ0 = d3_geo_clipAntimeridianIntersect(λ0, φ0, λ1, φ1);\n",
              "          listener.point(sλ0, φ0);\n",
              "          listener.lineEnd();\n",
              "          listener.lineStart();\n",
              "          listener.point(sλ1, φ0);\n",
              "          clean = 0;\n",
              "        }\n",
              "        listener.point(λ0 = λ1, φ0 = φ1);\n",
              "        sλ0 = sλ1;\n",
              "      },\n",
              "      lineEnd: function() {\n",
              "        listener.lineEnd();\n",
              "        λ0 = φ0 = NaN;\n",
              "      },\n",
              "      clean: function() {\n",
              "        return 2 - clean;\n",
              "      }\n",
              "    };\n",
              "  }\n",
              "  function d3_geo_clipAntimeridianIntersect(λ0, φ0, λ1, φ1) {\n",
              "    var cosφ0, cosφ1, sinλ0_λ1 = Math.sin(λ0 - λ1);\n",
              "    return abs(sinλ0_λ1) > ε ? Math.atan((Math.sin(φ0) * (cosφ1 = Math.cos(φ1)) * Math.sin(λ1) - Math.sin(φ1) * (cosφ0 = Math.cos(φ0)) * Math.sin(λ0)) / (cosφ0 * cosφ1 * sinλ0_λ1)) : (φ0 + φ1) / 2;\n",
              "  }\n",
              "  function d3_geo_clipAntimeridianInterpolate(from, to, direction, listener) {\n",
              "    var φ;\n",
              "    if (from == null) {\n",
              "      φ = direction * halfπ;\n",
              "      listener.point(-π, φ);\n",
              "      listener.point(0, φ);\n",
              "      listener.point(π, φ);\n",
              "      listener.point(π, 0);\n",
              "      listener.point(π, -φ);\n",
              "      listener.point(0, -φ);\n",
              "      listener.point(-π, -φ);\n",
              "      listener.point(-π, 0);\n",
              "      listener.point(-π, φ);\n",
              "    } else if (abs(from[0] - to[0]) > ε) {\n",
              "      var s = from[0] < to[0] ? π : -π;\n",
              "      φ = direction * s / 2;\n",
              "      listener.point(-s, φ);\n",
              "      listener.point(0, φ);\n",
              "      listener.point(s, φ);\n",
              "    } else {\n",
              "      listener.point(to[0], to[1]);\n",
              "    }\n",
              "  }\n",
              "  function d3_geo_pointInPolygon(point, polygon) {\n",
              "    var meridian = point[0], parallel = point[1], meridianNormal = [ Math.sin(meridian), -Math.cos(meridian), 0 ], polarAngle = 0, winding = 0;\n",
              "    d3_geo_areaRingSum.reset();\n",
              "    for (var i = 0, n = polygon.length; i < n; ++i) {\n",
              "      var ring = polygon[i], m = ring.length;\n",
              "      if (!m) continue;\n",
              "      var point0 = ring[0], λ0 = point0[0], φ0 = point0[1] / 2 + π / 4, sinφ0 = Math.sin(φ0), cosφ0 = Math.cos(φ0), j = 1;\n",
              "      while (true) {\n",
              "        if (j === m) j = 0;\n",
              "        point = ring[j];\n",
              "        var λ = point[0], φ = point[1] / 2 + π / 4, sinφ = Math.sin(φ), cosφ = Math.cos(φ), dλ = λ - λ0, sdλ = dλ >= 0 ? 1 : -1, adλ = sdλ * dλ, antimeridian = adλ > π, k = sinφ0 * sinφ;\n",
              "        d3_geo_areaRingSum.add(Math.atan2(k * sdλ * Math.sin(adλ), cosφ0 * cosφ + k * Math.cos(adλ)));\n",
              "        polarAngle += antimeridian ? dλ + sdλ * τ : dλ;\n",
              "        if (antimeridian ^ λ0 >= meridian ^ λ >= meridian) {\n",
              "          var arc = d3_geo_cartesianCross(d3_geo_cartesian(point0), d3_geo_cartesian(point));\n",
              "          d3_geo_cartesianNormalize(arc);\n",
              "          var intersection = d3_geo_cartesianCross(meridianNormal, arc);\n",
              "          d3_geo_cartesianNormalize(intersection);\n",
              "          var φarc = (antimeridian ^ dλ >= 0 ? -1 : 1) * d3_asin(intersection[2]);\n",
              "          if (parallel > φarc || parallel === φarc && (arc[0] || arc[1])) {\n",
              "            winding += antimeridian ^ dλ >= 0 ? 1 : -1;\n",
              "          }\n",
              "        }\n",
              "        if (!j++) break;\n",
              "        λ0 = λ, sinφ0 = sinφ, cosφ0 = cosφ, point0 = point;\n",
              "      }\n",
              "    }\n",
              "    return (polarAngle < -ε || polarAngle < ε && d3_geo_areaRingSum < -ε) ^ winding & 1;\n",
              "  }\n",
              "  function d3_geo_clipCircle(radius) {\n",
              "    var cr = Math.cos(radius), smallRadius = cr > 0, notHemisphere = abs(cr) > ε, interpolate = d3_geo_circleInterpolate(radius, 6 * d3_radians);\n",
              "    return d3_geo_clip(visible, clipLine, interpolate, smallRadius ? [ 0, -radius ] : [ -π, radius - π ]);\n",
              "    function visible(λ, φ) {\n",
              "      return Math.cos(λ) * Math.cos(φ) > cr;\n",
              "    }\n",
              "    function clipLine(listener) {\n",
              "      var point0, c0, v0, v00, clean;\n",
              "      return {\n",
              "        lineStart: function() {\n",
              "          v00 = v0 = false;\n",
              "          clean = 1;\n",
              "        },\n",
              "        point: function(λ, φ) {\n",
              "          var point1 = [ λ, φ ], point2, v = visible(λ, φ), c = smallRadius ? v ? 0 : code(λ, φ) : v ? code(λ + (λ < 0 ? π : -π), φ) : 0;\n",
              "          if (!point0 && (v00 = v0 = v)) listener.lineStart();\n",
              "          if (v !== v0) {\n",
              "            point2 = intersect(point0, point1);\n",
              "            if (d3_geo_sphericalEqual(point0, point2) || d3_geo_sphericalEqual(point1, point2)) {\n",
              "              point1[0] += ε;\n",
              "              point1[1] += ε;\n",
              "              v = visible(point1[0], point1[1]);\n",
              "            }\n",
              "          }\n",
              "          if (v !== v0) {\n",
              "            clean = 0;\n",
              "            if (v) {\n",
              "              listener.lineStart();\n",
              "              point2 = intersect(point1, point0);\n",
              "              listener.point(point2[0], point2[1]);\n",
              "            } else {\n",
              "              point2 = intersect(point0, point1);\n",
              "              listener.point(point2[0], point2[1]);\n",
              "              listener.lineEnd();\n",
              "            }\n",
              "            point0 = point2;\n",
              "          } else if (notHemisphere && point0 && smallRadius ^ v) {\n",
              "            var t;\n",
              "            if (!(c & c0) && (t = intersect(point1, point0, true))) {\n",
              "              clean = 0;\n",
              "              if (smallRadius) {\n",
              "                listener.lineStart();\n",
              "                listener.point(t[0][0], t[0][1]);\n",
              "                listener.point(t[1][0], t[1][1]);\n",
              "                listener.lineEnd();\n",
              "              } else {\n",
              "                listener.point(t[1][0], t[1][1]);\n",
              "                listener.lineEnd();\n",
              "                listener.lineStart();\n",
              "                listener.point(t[0][0], t[0][1]);\n",
              "              }\n",
              "            }\n",
              "          }\n",
              "          if (v && (!point0 || !d3_geo_sphericalEqual(point0, point1))) {\n",
              "            listener.point(point1[0], point1[1]);\n",
              "          }\n",
              "          point0 = point1, v0 = v, c0 = c;\n",
              "        },\n",
              "        lineEnd: function() {\n",
              "          if (v0) listener.lineEnd();\n",
              "          point0 = null;\n",
              "        },\n",
              "        clean: function() {\n",
              "          return clean | (v00 && v0) << 1;\n",
              "        }\n",
              "      };\n",
              "    }\n",
              "    function intersect(a, b, two) {\n",
              "      var pa = d3_geo_cartesian(a), pb = d3_geo_cartesian(b);\n",
              "      var n1 = [ 1, 0, 0 ], n2 = d3_geo_cartesianCross(pa, pb), n2n2 = d3_geo_cartesianDot(n2, n2), n1n2 = n2[0], determinant = n2n2 - n1n2 * n1n2;\n",
              "      if (!determinant) return !two && a;\n",
              "      var c1 = cr * n2n2 / determinant, c2 = -cr * n1n2 / determinant, n1xn2 = d3_geo_cartesianCross(n1, n2), A = d3_geo_cartesianScale(n1, c1), B = d3_geo_cartesianScale(n2, c2);\n",
              "      d3_geo_cartesianAdd(A, B);\n",
              "      var u = n1xn2, w = d3_geo_cartesianDot(A, u), uu = d3_geo_cartesianDot(u, u), t2 = w * w - uu * (d3_geo_cartesianDot(A, A) - 1);\n",
              "      if (t2 < 0) return;\n",
              "      var t = Math.sqrt(t2), q = d3_geo_cartesianScale(u, (-w - t) / uu);\n",
              "      d3_geo_cartesianAdd(q, A);\n",
              "      q = d3_geo_spherical(q);\n",
              "      if (!two) return q;\n",
              "      var λ0 = a[0], λ1 = b[0], φ0 = a[1], φ1 = b[1], z;\n",
              "      if (λ1 < λ0) z = λ0, λ0 = λ1, λ1 = z;\n",
              "      var δλ = λ1 - λ0, polar = abs(δλ - π) < ε, meridian = polar || δλ < ε;\n",
              "      if (!polar && φ1 < φ0) z = φ0, φ0 = φ1, φ1 = z;\n",
              "      if (meridian ? polar ? φ0 + φ1 > 0 ^ q[1] < (abs(q[0] - λ0) < ε ? φ0 : φ1) : φ0 <= q[1] && q[1] <= φ1 : δλ > π ^ (λ0 <= q[0] && q[0] <= λ1)) {\n",
              "        var q1 = d3_geo_cartesianScale(u, (-w + t) / uu);\n",
              "        d3_geo_cartesianAdd(q1, A);\n",
              "        return [ q, d3_geo_spherical(q1) ];\n",
              "      }\n",
              "    }\n",
              "    function code(λ, φ) {\n",
              "      var r = smallRadius ? radius : π - radius, code = 0;\n",
              "      if (λ < -r) code |= 1; else if (λ > r) code |= 2;\n",
              "      if (φ < -r) code |= 4; else if (φ > r) code |= 8;\n",
              "      return code;\n",
              "    }\n",
              "  }\n",
              "  function d3_geom_clipLine(x0, y0, x1, y1) {\n",
              "    return function(line) {\n",
              "      var a = line.a, b = line.b, ax = a.x, ay = a.y, bx = b.x, by = b.y, t0 = 0, t1 = 1, dx = bx - ax, dy = by - ay, r;\n",
              "      r = x0 - ax;\n",
              "      if (!dx && r > 0) return;\n",
              "      r /= dx;\n",
              "      if (dx < 0) {\n",
              "        if (r < t0) return;\n",
              "        if (r < t1) t1 = r;\n",
              "      } else if (dx > 0) {\n",
              "        if (r > t1) return;\n",
              "        if (r > t0) t0 = r;\n",
              "      }\n",
              "      r = x1 - ax;\n",
              "      if (!dx && r < 0) return;\n",
              "      r /= dx;\n",
              "      if (dx < 0) {\n",
              "        if (r > t1) return;\n",
              "        if (r > t0) t0 = r;\n",
              "      } else if (dx > 0) {\n",
              "        if (r < t0) return;\n",
              "        if (r < t1) t1 = r;\n",
              "      }\n",
              "      r = y0 - ay;\n",
              "      if (!dy && r > 0) return;\n",
              "      r /= dy;\n",
              "      if (dy < 0) {\n",
              "        if (r < t0) return;\n",
              "        if (r < t1) t1 = r;\n",
              "      } else if (dy > 0) {\n",
              "        if (r > t1) return;\n",
              "        if (r > t0) t0 = r;\n",
              "      }\n",
              "      r = y1 - ay;\n",
              "      if (!dy && r < 0) return;\n",
              "      r /= dy;\n",
              "      if (dy < 0) {\n",
              "        if (r > t1) return;\n",
              "        if (r > t0) t0 = r;\n",
              "      } else if (dy > 0) {\n",
              "        if (r < t0) return;\n",
              "        if (r < t1) t1 = r;\n",
              "      }\n",
              "      if (t0 > 0) line.a = {\n",
              "        x: ax + t0 * dx,\n",
              "        y: ay + t0 * dy\n",
              "      };\n",
              "      if (t1 < 1) line.b = {\n",
              "        x: ax + t1 * dx,\n",
              "        y: ay + t1 * dy\n",
              "      };\n",
              "      return line;\n",
              "    };\n",
              "  }\n",
              "  var d3_geo_clipExtentMAX = 1e9;\n",
              "  d3.geo.clipExtent = function() {\n",
              "    var x0, y0, x1, y1, stream, clip, clipExtent = {\n",
              "      stream: function(output) {\n",
              "        if (stream) stream.valid = false;\n",
              "        stream = clip(output);\n",
              "        stream.valid = true;\n",
              "        return stream;\n",
              "      },\n",
              "      extent: function(_) {\n",
              "        if (!arguments.length) return [ [ x0, y0 ], [ x1, y1 ] ];\n",
              "        clip = d3_geo_clipExtent(x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1]);\n",
              "        if (stream) stream.valid = false, stream = null;\n",
              "        return clipExtent;\n",
              "      }\n",
              "    };\n",
              "    return clipExtent.extent([ [ 0, 0 ], [ 960, 500 ] ]);\n",
              "  };\n",
              "  function d3_geo_clipExtent(x0, y0, x1, y1) {\n",
              "    return function(listener) {\n",
              "      var listener_ = listener, bufferListener = d3_geo_clipBufferListener(), clipLine = d3_geom_clipLine(x0, y0, x1, y1), segments, polygon, ring;\n",
              "      var clip = {\n",
              "        point: point,\n",
              "        lineStart: lineStart,\n",
              "        lineEnd: lineEnd,\n",
              "        polygonStart: function() {\n",
              "          listener = bufferListener;\n",
              "          segments = [];\n",
              "          polygon = [];\n",
              "          clean = true;\n",
              "        },\n",
              "        polygonEnd: function() {\n",
              "          listener = listener_;\n",
              "          segments = d3.merge(segments);\n",
              "          var clipStartInside = insidePolygon([ x0, y1 ]), inside = clean && clipStartInside, visible = segments.length;\n",
              "          if (inside || visible) {\n",
              "            listener.polygonStart();\n",
              "            if (inside) {\n",
              "              listener.lineStart();\n",
              "              interpolate(null, null, 1, listener);\n",
              "              listener.lineEnd();\n",
              "            }\n",
              "            if (visible) {\n",
              "              d3_geo_clipPolygon(segments, compare, clipStartInside, interpolate, listener);\n",
              "            }\n",
              "            listener.polygonEnd();\n",
              "          }\n",
              "          segments = polygon = ring = null;\n",
              "        }\n",
              "      };\n",
              "      function insidePolygon(p) {\n",
              "        var wn = 0, n = polygon.length, y = p[1];\n",
              "        for (var i = 0; i < n; ++i) {\n",
              "          for (var j = 1, v = polygon[i], m = v.length, a = v[0], b; j < m; ++j) {\n",
              "            b = v[j];\n",
              "            if (a[1] <= y) {\n",
              "              if (b[1] > y && d3_cross2d(a, b, p) > 0) ++wn;\n",
              "            } else {\n",
              "              if (b[1] <= y && d3_cross2d(a, b, p) < 0) --wn;\n",
              "            }\n",
              "            a = b;\n",
              "          }\n",
              "        }\n",
              "        return wn !== 0;\n",
              "      }\n",
              "      function interpolate(from, to, direction, listener) {\n",
              "        var a = 0, a1 = 0;\n",
              "        if (from == null || (a = corner(from, direction)) !== (a1 = corner(to, direction)) || comparePoints(from, to) < 0 ^ direction > 0) {\n",
              "          do {\n",
              "            listener.point(a === 0 || a === 3 ? x0 : x1, a > 1 ? y1 : y0);\n",
              "          } while ((a = (a + direction + 4) % 4) !== a1);\n",
              "        } else {\n",
              "          listener.point(to[0], to[1]);\n",
              "        }\n",
              "      }\n",
              "      function pointVisible(x, y) {\n",
              "        return x0 <= x && x <= x1 && y0 <= y && y <= y1;\n",
              "      }\n",
              "      function point(x, y) {\n",
              "        if (pointVisible(x, y)) listener.point(x, y);\n",
              "      }\n",
              "      var x__, y__, v__, x_, y_, v_, first, clean;\n",
              "      function lineStart() {\n",
              "        clip.point = linePoint;\n",
              "        if (polygon) polygon.push(ring = []);\n",
              "        first = true;\n",
              "        v_ = false;\n",
              "        x_ = y_ = NaN;\n",
              "      }\n",
              "      function lineEnd() {\n",
              "        if (segments) {\n",
              "          linePoint(x__, y__);\n",
              "          if (v__ && v_) bufferListener.rejoin();\n",
              "          segments.push(bufferListener.buffer());\n",
              "        }\n",
              "        clip.point = point;\n",
              "        if (v_) listener.lineEnd();\n",
              "      }\n",
              "      function linePoint(x, y) {\n",
              "        x = Math.max(-d3_geo_clipExtentMAX, Math.min(d3_geo_clipExtentMAX, x));\n",
              "        y = Math.max(-d3_geo_clipExtentMAX, Math.min(d3_geo_clipExtentMAX, y));\n",
              "        var v = pointVisible(x, y);\n",
              "        if (polygon) ring.push([ x, y ]);\n",
              "        if (first) {\n",
              "          x__ = x, y__ = y, v__ = v;\n",
              "          first = false;\n",
              "          if (v) {\n",
              "            listener.lineStart();\n",
              "            listener.point(x, y);\n",
              "          }\n",
              "        } else {\n",
              "          if (v && v_) listener.point(x, y); else {\n",
              "            var l = {\n",
              "              a: {\n",
              "                x: x_,\n",
              "                y: y_\n",
              "              },\n",
              "              b: {\n",
              "                x: x,\n",
              "                y: y\n",
              "              }\n",
              "            };\n",
              "            if (clipLine(l)) {\n",
              "              if (!v_) {\n",
              "                listener.lineStart();\n",
              "                listener.point(l.a.x, l.a.y);\n",
              "              }\n",
              "              listener.point(l.b.x, l.b.y);\n",
              "              if (!v) listener.lineEnd();\n",
              "              clean = false;\n",
              "            } else if (v) {\n",
              "              listener.lineStart();\n",
              "              listener.point(x, y);\n",
              "              clean = false;\n",
              "            }\n",
              "          }\n",
              "        }\n",
              "        x_ = x, y_ = y, v_ = v;\n",
              "      }\n",
              "      return clip;\n",
              "    };\n",
              "    function corner(p, direction) {\n",
              "      return abs(p[0] - x0) < ε ? direction > 0 ? 0 : 3 : abs(p[0] - x1) < ε ? direction > 0 ? 2 : 1 : abs(p[1] - y0) < ε ? direction > 0 ? 1 : 0 : direction > 0 ? 3 : 2;\n",
              "    }\n",
              "    function compare(a, b) {\n",
              "      return comparePoints(a.x, b.x);\n",
              "    }\n",
              "    function comparePoints(a, b) {\n",
              "      var ca = corner(a, 1), cb = corner(b, 1);\n",
              "      return ca !== cb ? ca - cb : ca === 0 ? b[1] - a[1] : ca === 1 ? a[0] - b[0] : ca === 2 ? a[1] - b[1] : b[0] - a[0];\n",
              "    }\n",
              "  }\n",
              "  function d3_geo_conic(projectAt) {\n",
              "    var φ0 = 0, φ1 = π / 3, m = d3_geo_projectionMutator(projectAt), p = m(φ0, φ1);\n",
              "    p.parallels = function(_) {\n",
              "      if (!arguments.length) return [ φ0 / π * 180, φ1 / π * 180 ];\n",
              "      return m(φ0 = _[0] * π / 180, φ1 = _[1] * π / 180);\n",
              "    };\n",
              "    return p;\n",
              "  }\n",
              "  function d3_geo_conicEqualArea(φ0, φ1) {\n",
              "    var sinφ0 = Math.sin(φ0), n = (sinφ0 + Math.sin(φ1)) / 2, C = 1 + sinφ0 * (2 * n - sinφ0), ρ0 = Math.sqrt(C) / n;\n",
              "    function forward(λ, φ) {\n",
              "      var ρ = Math.sqrt(C - 2 * n * Math.sin(φ)) / n;\n",
              "      return [ ρ * Math.sin(λ *= n), ρ0 - ρ * Math.cos(λ) ];\n",
              "    }\n",
              "    forward.invert = function(x, y) {\n",
              "      var ρ0_y = ρ0 - y;\n",
              "      return [ Math.atan2(x, ρ0_y) / n, d3_asin((C - (x * x + ρ0_y * ρ0_y) * n * n) / (2 * n)) ];\n",
              "    };\n",
              "    return forward;\n",
              "  }\n",
              "  (d3.geo.conicEqualArea = function() {\n",
              "    return d3_geo_conic(d3_geo_conicEqualArea);\n",
              "  }).raw = d3_geo_conicEqualArea;\n",
              "  d3.geo.albers = function() {\n",
              "    return d3.geo.conicEqualArea().rotate([ 96, 0 ]).center([ -.6, 38.7 ]).parallels([ 29.5, 45.5 ]).scale(1070);\n",
              "  };\n",
              "  d3.geo.albersUsa = function() {\n",
              "    var lower48 = d3.geo.albers();\n",
              "    var alaska = d3.geo.conicEqualArea().rotate([ 154, 0 ]).center([ -2, 58.5 ]).parallels([ 55, 65 ]);\n",
              "    var hawaii = d3.geo.conicEqualArea().rotate([ 157, 0 ]).center([ -3, 19.9 ]).parallels([ 8, 18 ]);\n",
              "    var point, pointStream = {\n",
              "      point: function(x, y) {\n",
              "        point = [ x, y ];\n",
              "      }\n",
              "    }, lower48Point, alaskaPoint, hawaiiPoint;\n",
              "    function albersUsa(coordinates) {\n",
              "      var x = coordinates[0], y = coordinates[1];\n",
              "      point = null;\n",
              "      (lower48Point(x, y), point) || (alaskaPoint(x, y), point) || hawaiiPoint(x, y);\n",
              "      return point;\n",
              "    }\n",
              "    albersUsa.invert = function(coordinates) {\n",
              "      var k = lower48.scale(), t = lower48.translate(), x = (coordinates[0] - t[0]) / k, y = (coordinates[1] - t[1]) / k;\n",
              "      return (y >= .12 && y < .234 && x >= -.425 && x < -.214 ? alaska : y >= .166 && y < .234 && x >= -.214 && x < -.115 ? hawaii : lower48).invert(coordinates);\n",
              "    };\n",
              "    albersUsa.stream = function(stream) {\n",
              "      var lower48Stream = lower48.stream(stream), alaskaStream = alaska.stream(stream), hawaiiStream = hawaii.stream(stream);\n",
              "      return {\n",
              "        point: function(x, y) {\n",
              "          lower48Stream.point(x, y);\n",
              "          alaskaStream.point(x, y);\n",
              "          hawaiiStream.point(x, y);\n",
              "        },\n",
              "        sphere: function() {\n",
              "          lower48Stream.sphere();\n",
              "          alaskaStream.sphere();\n",
              "          hawaiiStream.sphere();\n",
              "        },\n",
              "        lineStart: function() {\n",
              "          lower48Stream.lineStart();\n",
              "          alaskaStream.lineStart();\n",
              "          hawaiiStream.lineStart();\n",
              "        },\n",
              "        lineEnd: function() {\n",
              "          lower48Stream.lineEnd();\n",
              "          alaskaStream.lineEnd();\n",
              "          hawaiiStream.lineEnd();\n",
              "        },\n",
              "        polygonStart: function() {\n",
              "          lower48Stream.polygonStart();\n",
              "          alaskaStream.polygonStart();\n",
              "          hawaiiStream.polygonStart();\n",
              "        },\n",
              "        polygonEnd: function() {\n",
              "          lower48Stream.polygonEnd();\n",
              "          alaskaStream.polygonEnd();\n",
              "          hawaiiStream.polygonEnd();\n",
              "        }\n",
              "      };\n",
              "    };\n",
              "    albersUsa.precision = function(_) {\n",
              "      if (!arguments.length) return lower48.precision();\n",
              "      lower48.precision(_);\n",
              "      alaska.precision(_);\n",
              "      hawaii.precision(_);\n",
              "      return albersUsa;\n",
              "    };\n",
              "    albersUsa.scale = function(_) {\n",
              "      if (!arguments.length) return lower48.scale();\n",
              "      lower48.scale(_);\n",
              "      alaska.scale(_ * .35);\n",
              "      hawaii.scale(_);\n",
              "      return albersUsa.translate(lower48.translate());\n",
              "    };\n",
              "    albersUsa.translate = function(_) {\n",
              "      if (!arguments.length) return lower48.translate();\n",
              "      var k = lower48.scale(), x = +_[0], y = +_[1];\n",
              "      lower48Point = lower48.translate(_).clipExtent([ [ x - .455 * k, y - .238 * k ], [ x + .455 * k, y + .238 * k ] ]).stream(pointStream).point;\n",
              "      alaskaPoint = alaska.translate([ x - .307 * k, y + .201 * k ]).clipExtent([ [ x - .425 * k + ε, y + .12 * k + ε ], [ x - .214 * k - ε, y + .234 * k - ε ] ]).stream(pointStream).point;\n",
              "      hawaiiPoint = hawaii.translate([ x - .205 * k, y + .212 * k ]).clipExtent([ [ x - .214 * k + ε, y + .166 * k + ε ], [ x - .115 * k - ε, y + .234 * k - ε ] ]).stream(pointStream).point;\n",
              "      return albersUsa;\n",
              "    };\n",
              "    return albersUsa.scale(1070);\n",
              "  };\n",
              "  var d3_geo_pathAreaSum, d3_geo_pathAreaPolygon, d3_geo_pathArea = {\n",
              "    point: d3_noop,\n",
              "    lineStart: d3_noop,\n",
              "    lineEnd: d3_noop,\n",
              "    polygonStart: function() {\n",
              "      d3_geo_pathAreaPolygon = 0;\n",
              "      d3_geo_pathArea.lineStart = d3_geo_pathAreaRingStart;\n",
              "    },\n",
              "    polygonEnd: function() {\n",
              "      d3_geo_pathArea.lineStart = d3_geo_pathArea.lineEnd = d3_geo_pathArea.point = d3_noop;\n",
              "      d3_geo_pathAreaSum += abs(d3_geo_pathAreaPolygon / 2);\n",
              "    }\n",
              "  };\n",
              "  function d3_geo_pathAreaRingStart() {\n",
              "    var x00, y00, x0, y0;\n",
              "    d3_geo_pathArea.point = function(x, y) {\n",
              "      d3_geo_pathArea.point = nextPoint;\n",
              "      x00 = x0 = x, y00 = y0 = y;\n",
              "    };\n",
              "    function nextPoint(x, y) {\n",
              "      d3_geo_pathAreaPolygon += y0 * x - x0 * y;\n",
              "      x0 = x, y0 = y;\n",
              "    }\n",
              "    d3_geo_pathArea.lineEnd = function() {\n",
              "      nextPoint(x00, y00);\n",
              "    };\n",
              "  }\n",
              "  var d3_geo_pathBoundsX0, d3_geo_pathBoundsY0, d3_geo_pathBoundsX1, d3_geo_pathBoundsY1;\n",
              "  var d3_geo_pathBounds = {\n",
              "    point: d3_geo_pathBoundsPoint,\n",
              "    lineStart: d3_noop,\n",
              "    lineEnd: d3_noop,\n",
              "    polygonStart: d3_noop,\n",
              "    polygonEnd: d3_noop\n",
              "  };\n",
              "  function d3_geo_pathBoundsPoint(x, y) {\n",
              "    if (x < d3_geo_pathBoundsX0) d3_geo_pathBoundsX0 = x;\n",
              "    if (x > d3_geo_pathBoundsX1) d3_geo_pathBoundsX1 = x;\n",
              "    if (y < d3_geo_pathBoundsY0) d3_geo_pathBoundsY0 = y;\n",
              "    if (y > d3_geo_pathBoundsY1) d3_geo_pathBoundsY1 = y;\n",
              "  }\n",
              "  function d3_geo_pathBuffer() {\n",
              "    var pointCircle = d3_geo_pathBufferCircle(4.5), buffer = [];\n",
              "    var stream = {\n",
              "      point: point,\n",
              "      lineStart: function() {\n",
              "        stream.point = pointLineStart;\n",
              "      },\n",
              "      lineEnd: lineEnd,\n",
              "      polygonStart: function() {\n",
              "        stream.lineEnd = lineEndPolygon;\n",
              "      },\n",
              "      polygonEnd: function() {\n",
              "        stream.lineEnd = lineEnd;\n",
              "        stream.point = point;\n",
              "      },\n",
              "      pointRadius: function(_) {\n",
              "        pointCircle = d3_geo_pathBufferCircle(_);\n",
              "        return stream;\n",
              "      },\n",
              "      result: function() {\n",
              "        if (buffer.length) {\n",
              "          var result = buffer.join(\"\");\n",
              "          buffer = [];\n",
              "          return result;\n",
              "        }\n",
              "      }\n",
              "    };\n",
              "    function point(x, y) {\n",
              "      buffer.push(\"M\", x, \",\", y, pointCircle);\n",
              "    }\n",
              "    function pointLineStart(x, y) {\n",
              "      buffer.push(\"M\", x, \",\", y);\n",
              "      stream.point = pointLine;\n",
              "    }\n",
              "    function pointLine(x, y) {\n",
              "      buffer.push(\"L\", x, \",\", y);\n",
              "    }\n",
              "    function lineEnd() {\n",
              "      stream.point = point;\n",
              "    }\n",
              "    function lineEndPolygon() {\n",
              "      buffer.push(\"Z\");\n",
              "    }\n",
              "    return stream;\n",
              "  }\n",
              "  function d3_geo_pathBufferCircle(radius) {\n",
              "    return \"m0,\" + radius + \"a\" + radius + \",\" + radius + \" 0 1,1 0,\" + -2 * radius + \"a\" + radius + \",\" + radius + \" 0 1,1 0,\" + 2 * radius + \"z\";\n",
              "  }\n",
              "  var d3_geo_pathCentroid = {\n",
              "    point: d3_geo_pathCentroidPoint,\n",
              "    lineStart: d3_geo_pathCentroidLineStart,\n",
              "    lineEnd: d3_geo_pathCentroidLineEnd,\n",
              "    polygonStart: function() {\n",
              "      d3_geo_pathCentroid.lineStart = d3_geo_pathCentroidRingStart;\n",
              "    },\n",
              "    polygonEnd: function() {\n",
              "      d3_geo_pathCentroid.point = d3_geo_pathCentroidPoint;\n",
              "      d3_geo_pathCentroid.lineStart = d3_geo_pathCentroidLineStart;\n",
              "      d3_geo_pathCentroid.lineEnd = d3_geo_pathCentroidLineEnd;\n",
              "    }\n",
              "  };\n",
              "  function d3_geo_pathCentroidPoint(x, y) {\n",
              "    d3_geo_centroidX0 += x;\n",
              "    d3_geo_centroidY0 += y;\n",
              "    ++d3_geo_centroidZ0;\n",
              "  }\n",
              "  function d3_geo_pathCentroidLineStart() {\n",
              "    var x0, y0;\n",
              "    d3_geo_pathCentroid.point = function(x, y) {\n",
              "      d3_geo_pathCentroid.point = nextPoint;\n",
              "      d3_geo_pathCentroidPoint(x0 = x, y0 = y);\n",
              "    };\n",
              "    function nextPoint(x, y) {\n",
              "      var dx = x - x0, dy = y - y0, z = Math.sqrt(dx * dx + dy * dy);\n",
              "      d3_geo_centroidX1 += z * (x0 + x) / 2;\n",
              "      d3_geo_centroidY1 += z * (y0 + y) / 2;\n",
              "      d3_geo_centroidZ1 += z;\n",
              "      d3_geo_pathCentroidPoint(x0 = x, y0 = y);\n",
              "    }\n",
              "  }\n",
              "  function d3_geo_pathCentroidLineEnd() {\n",
              "    d3_geo_pathCentroid.point = d3_geo_pathCentroidPoint;\n",
              "  }\n",
              "  function d3_geo_pathCentroidRingStart() {\n",
              "    var x00, y00, x0, y0;\n",
              "    d3_geo_pathCentroid.point = function(x, y) {\n",
              "      d3_geo_pathCentroid.point = nextPoint;\n",
              "      d3_geo_pathCentroidPoint(x00 = x0 = x, y00 = y0 = y);\n",
              "    };\n",
              "    function nextPoint(x, y) {\n",
              "      var dx = x - x0, dy = y - y0, z = Math.sqrt(dx * dx + dy * dy);\n",
              "      d3_geo_centroidX1 += z * (x0 + x) / 2;\n",
              "      d3_geo_centroidY1 += z * (y0 + y) / 2;\n",
              "      d3_geo_centroidZ1 += z;\n",
              "      z = y0 * x - x0 * y;\n",
              "      d3_geo_centroidX2 += z * (x0 + x);\n",
              "      d3_geo_centroidY2 += z * (y0 + y);\n",
              "      d3_geo_centroidZ2 += z * 3;\n",
              "      d3_geo_pathCentroidPoint(x0 = x, y0 = y);\n",
              "    }\n",
              "    d3_geo_pathCentroid.lineEnd = function() {\n",
              "      nextPoint(x00, y00);\n",
              "    };\n",
              "  }\n",
              "  function d3_geo_pathContext(context) {\n",
              "    var pointRadius = 4.5;\n",
              "    var stream = {\n",
              "      point: point,\n",
              "      lineStart: function() {\n",
              "        stream.point = pointLineStart;\n",
              "      },\n",
              "      lineEnd: lineEnd,\n",
              "      polygonStart: function() {\n",
              "        stream.lineEnd = lineEndPolygon;\n",
              "      },\n",
              "      polygonEnd: function() {\n",
              "        stream.lineEnd = lineEnd;\n",
              "        stream.point = point;\n",
              "      },\n",
              "      pointRadius: function(_) {\n",
              "        pointRadius = _;\n",
              "        return stream;\n",
              "      },\n",
              "      result: d3_noop\n",
              "    };\n",
              "    function point(x, y) {\n",
              "      context.moveTo(x + pointRadius, y);\n",
              "      context.arc(x, y, pointRadius, 0, τ);\n",
              "    }\n",
              "    function pointLineStart(x, y) {\n",
              "      context.moveTo(x, y);\n",
              "      stream.point = pointLine;\n",
              "    }\n",
              "    function pointLine(x, y) {\n",
              "      context.lineTo(x, y);\n",
              "    }\n",
              "    function lineEnd() {\n",
              "      stream.point = point;\n",
              "    }\n",
              "    function lineEndPolygon() {\n",
              "      context.closePath();\n",
              "    }\n",
              "    return stream;\n",
              "  }\n",
              "  function d3_geo_resample(project) {\n",
              "    var δ2 = .5, cosMinDistance = Math.cos(30 * d3_radians), maxDepth = 16;\n",
              "    function resample(stream) {\n",
              "      return (maxDepth ? resampleRecursive : resampleNone)(stream);\n",
              "    }\n",
              "    function resampleNone(stream) {\n",
              "      return d3_geo_transformPoint(stream, function(x, y) {\n",
              "        x = project(x, y);\n",
              "        stream.point(x[0], x[1]);\n",
              "      });\n",
              "    }\n",
              "    function resampleRecursive(stream) {\n",
              "      var λ00, φ00, x00, y00, a00, b00, c00, λ0, x0, y0, a0, b0, c0;\n",
              "      var resample = {\n",
              "        point: point,\n",
              "        lineStart: lineStart,\n",
              "        lineEnd: lineEnd,\n",
              "        polygonStart: function() {\n",
              "          stream.polygonStart();\n",
              "          resample.lineStart = ringStart;\n",
              "        },\n",
              "        polygonEnd: function() {\n",
              "          stream.polygonEnd();\n",
              "          resample.lineStart = lineStart;\n",
              "        }\n",
              "      };\n",
              "      function point(x, y) {\n",
              "        x = project(x, y);\n",
              "        stream.point(x[0], x[1]);\n",
              "      }\n",
              "      function lineStart() {\n",
              "        x0 = NaN;\n",
              "        resample.point = linePoint;\n",
              "        stream.lineStart();\n",
              "      }\n",
              "      function linePoint(λ, φ) {\n",
              "        var c = d3_geo_cartesian([ λ, φ ]), p = project(λ, φ);\n",
              "        resampleLineTo(x0, y0, λ0, a0, b0, c0, x0 = p[0], y0 = p[1], λ0 = λ, a0 = c[0], b0 = c[1], c0 = c[2], maxDepth, stream);\n",
              "        stream.point(x0, y0);\n",
              "      }\n",
              "      function lineEnd() {\n",
              "        resample.point = point;\n",
              "        stream.lineEnd();\n",
              "      }\n",
              "      function ringStart() {\n",
              "        lineStart();\n",
              "        resample.point = ringPoint;\n",
              "        resample.lineEnd = ringEnd;\n",
              "      }\n",
              "      function ringPoint(λ, φ) {\n",
              "        linePoint(λ00 = λ, φ00 = φ), x00 = x0, y00 = y0, a00 = a0, b00 = b0, c00 = c0;\n",
              "        resample.point = linePoint;\n",
              "      }\n",
              "      function ringEnd() {\n",
              "        resampleLineTo(x0, y0, λ0, a0, b0, c0, x00, y00, λ00, a00, b00, c00, maxDepth, stream);\n",
              "        resample.lineEnd = lineEnd;\n",
              "        lineEnd();\n",
              "      }\n",
              "      return resample;\n",
              "    }\n",
              "    function resampleLineTo(x0, y0, λ0, a0, b0, c0, x1, y1, λ1, a1, b1, c1, depth, stream) {\n",
              "      var dx = x1 - x0, dy = y1 - y0, d2 = dx * dx + dy * dy;\n",
              "      if (d2 > 4 * δ2 && depth--) {\n",
              "        var a = a0 + a1, b = b0 + b1, c = c0 + c1, m = Math.sqrt(a * a + b * b + c * c), φ2 = Math.asin(c /= m), λ2 = abs(abs(c) - 1) < ε || abs(λ0 - λ1) < ε ? (λ0 + λ1) / 2 : Math.atan2(b, a), p = project(λ2, φ2), x2 = p[0], y2 = p[1], dx2 = x2 - x0, dy2 = y2 - y0, dz = dy * dx2 - dx * dy2;\n",
              "        if (dz * dz / d2 > δ2 || abs((dx * dx2 + dy * dy2) / d2 - .5) > .3 || a0 * a1 + b0 * b1 + c0 * c1 < cosMinDistance) {\n",
              "          resampleLineTo(x0, y0, λ0, a0, b0, c0, x2, y2, λ2, a /= m, b /= m, c, depth, stream);\n",
              "          stream.point(x2, y2);\n",
              "          resampleLineTo(x2, y2, λ2, a, b, c, x1, y1, λ1, a1, b1, c1, depth, stream);\n",
              "        }\n",
              "      }\n",
              "    }\n",
              "    resample.precision = function(_) {\n",
              "      if (!arguments.length) return Math.sqrt(δ2);\n",
              "      maxDepth = (δ2 = _ * _) > 0 && 16;\n",
              "      return resample;\n",
              "    };\n",
              "    return resample;\n",
              "  }\n",
              "  d3.geo.path = function() {\n",
              "    var pointRadius = 4.5, projection, context, projectStream, contextStream, cacheStream;\n",
              "    function path(object) {\n",
              "      if (object) {\n",
              "        if (typeof pointRadius === \"function\") contextStream.pointRadius(+pointRadius.apply(this, arguments));\n",
              "        if (!cacheStream || !cacheStream.valid) cacheStream = projectStream(contextStream);\n",
              "        d3.geo.stream(object, cacheStream);\n",
              "      }\n",
              "      return contextStream.result();\n",
              "    }\n",
              "    path.area = function(object) {\n",
              "      d3_geo_pathAreaSum = 0;\n",
              "      d3.geo.stream(object, projectStream(d3_geo_pathArea));\n",
              "      return d3_geo_pathAreaSum;\n",
              "    };\n",
              "    path.centroid = function(object) {\n",
              "      d3_geo_centroidX0 = d3_geo_centroidY0 = d3_geo_centroidZ0 = d3_geo_centroidX1 = d3_geo_centroidY1 = d3_geo_centroidZ1 = d3_geo_centroidX2 = d3_geo_centroidY2 = d3_geo_centroidZ2 = 0;\n",
              "      d3.geo.stream(object, projectStream(d3_geo_pathCentroid));\n",
              "      return d3_geo_centroidZ2 ? [ d3_geo_centroidX2 / d3_geo_centroidZ2, d3_geo_centroidY2 / d3_geo_centroidZ2 ] : d3_geo_centroidZ1 ? [ d3_geo_centroidX1 / d3_geo_centroidZ1, d3_geo_centroidY1 / d3_geo_centroidZ1 ] : d3_geo_centroidZ0 ? [ d3_geo_centroidX0 / d3_geo_centroidZ0, d3_geo_centroidY0 / d3_geo_centroidZ0 ] : [ NaN, NaN ];\n",
              "    };\n",
              "    path.bounds = function(object) {\n",
              "      d3_geo_pathBoundsX1 = d3_geo_pathBoundsY1 = -(d3_geo_pathBoundsX0 = d3_geo_pathBoundsY0 = Infinity);\n",
              "      d3.geo.stream(object, projectStream(d3_geo_pathBounds));\n",
              "      return [ [ d3_geo_pathBoundsX0, d3_geo_pathBoundsY0 ], [ d3_geo_pathBoundsX1, d3_geo_pathBoundsY1 ] ];\n",
              "    };\n",
              "    path.projection = function(_) {\n",
              "      if (!arguments.length) return projection;\n",
              "      projectStream = (projection = _) ? _.stream || d3_geo_pathProjectStream(_) : d3_identity;\n",
              "      return reset();\n",
              "    };\n",
              "    path.context = function(_) {\n",
              "      if (!arguments.length) return context;\n",
              "      contextStream = (context = _) == null ? new d3_geo_pathBuffer() : new d3_geo_pathContext(_);\n",
              "      if (typeof pointRadius !== \"function\") contextStream.pointRadius(pointRadius);\n",
              "      return reset();\n",
              "    };\n",
              "    path.pointRadius = function(_) {\n",
              "      if (!arguments.length) return pointRadius;\n",
              "      pointRadius = typeof _ === \"function\" ? _ : (contextStream.pointRadius(+_), +_);\n",
              "      return path;\n",
              "    };\n",
              "    function reset() {\n",
              "      cacheStream = null;\n",
              "      return path;\n",
              "    }\n",
              "    return path.projection(d3.geo.albersUsa()).context(null);\n",
              "  };\n",
              "  function d3_geo_pathProjectStream(project) {\n",
              "    var resample = d3_geo_resample(function(x, y) {\n",
              "      return project([ x * d3_degrees, y * d3_degrees ]);\n",
              "    });\n",
              "    return function(stream) {\n",
              "      return d3_geo_projectionRadians(resample(stream));\n",
              "    };\n",
              "  }\n",
              "  d3.geo.transform = function(methods) {\n",
              "    return {\n",
              "      stream: function(stream) {\n",
              "        var transform = new d3_geo_transform(stream);\n",
              "        for (var k in methods) transform[k] = methods[k];\n",
              "        return transform;\n",
              "      }\n",
              "    };\n",
              "  };\n",
              "  function d3_geo_transform(stream) {\n",
              "    this.stream = stream;\n",
              "  }\n",
              "  d3_geo_transform.prototype = {\n",
              "    point: function(x, y) {\n",
              "      this.stream.point(x, y);\n",
              "    },\n",
              "    sphere: function() {\n",
              "      this.stream.sphere();\n",
              "    },\n",
              "    lineStart: function() {\n",
              "      this.stream.lineStart();\n",
              "    },\n",
              "    lineEnd: function() {\n",
              "      this.stream.lineEnd();\n",
              "    },\n",
              "    polygonStart: function() {\n",
              "      this.stream.polygonStart();\n",
              "    },\n",
              "    polygonEnd: function() {\n",
              "      this.stream.polygonEnd();\n",
              "    }\n",
              "  };\n",
              "  function d3_geo_transformPoint(stream, point) {\n",
              "    return {\n",
              "      point: point,\n",
              "      sphere: function() {\n",
              "        stream.sphere();\n",
              "      },\n",
              "      lineStart: function() {\n",
              "        stream.lineStart();\n",
              "      },\n",
              "      lineEnd: function() {\n",
              "        stream.lineEnd();\n",
              "      },\n",
              "      polygonStart: function() {\n",
              "        stream.polygonStart();\n",
              "      },\n",
              "      polygonEnd: function() {\n",
              "        stream.polygonEnd();\n",
              "      }\n",
              "    };\n",
              "  }\n",
              "  d3.geo.projection = d3_geo_projection;\n",
              "  d3.geo.projectionMutator = d3_geo_projectionMutator;\n",
              "  function d3_geo_projection(project) {\n",
              "    return d3_geo_projectionMutator(function() {\n",
              "      return project;\n",
              "    })();\n",
              "  }\n",
              "  function d3_geo_projectionMutator(projectAt) {\n",
              "    var project, rotate, projectRotate, projectResample = d3_geo_resample(function(x, y) {\n",
              "      x = project(x, y);\n",
              "      return [ x[0] * k + δx, δy - x[1] * k ];\n",
              "    }), k = 150, x = 480, y = 250, λ = 0, φ = 0, δλ = 0, δφ = 0, δγ = 0, δx, δy, preclip = d3_geo_clipAntimeridian, postclip = d3_identity, clipAngle = null, clipExtent = null, stream;\n",
              "    function projection(point) {\n",
              "      point = projectRotate(point[0] * d3_radians, point[1] * d3_radians);\n",
              "      return [ point[0] * k + δx, δy - point[1] * k ];\n",
              "    }\n",
              "    function invert(point) {\n",
              "      point = projectRotate.invert((point[0] - δx) / k, (δy - point[1]) / k);\n",
              "      return point && [ point[0] * d3_degrees, point[1] * d3_degrees ];\n",
              "    }\n",
              "    projection.stream = function(output) {\n",
              "      if (stream) stream.valid = false;\n",
              "      stream = d3_geo_projectionRadians(preclip(rotate, projectResample(postclip(output))));\n",
              "      stream.valid = true;\n",
              "      return stream;\n",
              "    };\n",
              "    projection.clipAngle = function(_) {\n",
              "      if (!arguments.length) return clipAngle;\n",
              "      preclip = _ == null ? (clipAngle = _, d3_geo_clipAntimeridian) : d3_geo_clipCircle((clipAngle = +_) * d3_radians);\n",
              "      return invalidate();\n",
              "    };\n",
              "    projection.clipExtent = function(_) {\n",
              "      if (!arguments.length) return clipExtent;\n",
              "      clipExtent = _;\n",
              "      postclip = _ ? d3_geo_clipExtent(_[0][0], _[0][1], _[1][0], _[1][1]) : d3_identity;\n",
              "      return invalidate();\n",
              "    };\n",
              "    projection.scale = function(_) {\n",
              "      if (!arguments.length) return k;\n",
              "      k = +_;\n",
              "      return reset();\n",
              "    };\n",
              "    projection.translate = function(_) {\n",
              "      if (!arguments.length) return [ x, y ];\n",
              "      x = +_[0];\n",
              "      y = +_[1];\n",
              "      return reset();\n",
              "    };\n",
              "    projection.center = function(_) {\n",
              "      if (!arguments.length) return [ λ * d3_degrees, φ * d3_degrees ];\n",
              "      λ = _[0] % 360 * d3_radians;\n",
              "      φ = _[1] % 360 * d3_radians;\n",
              "      return reset();\n",
              "    };\n",
              "    projection.rotate = function(_) {\n",
              "      if (!arguments.length) return [ δλ * d3_degrees, δφ * d3_degrees, δγ * d3_degrees ];\n",
              "      δλ = _[0] % 360 * d3_radians;\n",
              "      δφ = _[1] % 360 * d3_radians;\n",
              "      δγ = _.length > 2 ? _[2] % 360 * d3_radians : 0;\n",
              "      return reset();\n",
              "    };\n",
              "    d3.rebind(projection, projectResample, \"precision\");\n",
              "    function reset() {\n",
              "      projectRotate = d3_geo_compose(rotate = d3_geo_rotation(δλ, δφ, δγ), project);\n",
              "      var center = project(λ, φ);\n",
              "      δx = x - center[0] * k;\n",
              "      δy = y + center[1] * k;\n",
              "      return invalidate();\n",
              "    }\n",
              "    function invalidate() {\n",
              "      if (stream) stream.valid = false, stream = null;\n",
              "      return projection;\n",
              "    }\n",
              "    return function() {\n",
              "      project = projectAt.apply(this, arguments);\n",
              "      projection.invert = project.invert && invert;\n",
              "      return reset();\n",
              "    };\n",
              "  }\n",
              "  function d3_geo_projectionRadians(stream) {\n",
              "    return d3_geo_transformPoint(stream, function(x, y) {\n",
              "      stream.point(x * d3_radians, y * d3_radians);\n",
              "    });\n",
              "  }\n",
              "  function d3_geo_equirectangular(λ, φ) {\n",
              "    return [ λ, φ ];\n",
              "  }\n",
              "  (d3.geo.equirectangular = function() {\n",
              "    return d3_geo_projection(d3_geo_equirectangular);\n",
              "  }).raw = d3_geo_equirectangular.invert = d3_geo_equirectangular;\n",
              "  d3.geo.rotation = function(rotate) {\n",
              "    rotate = d3_geo_rotation(rotate[0] % 360 * d3_radians, rotate[1] * d3_radians, rotate.length > 2 ? rotate[2] * d3_radians : 0);\n",
              "    function forward(coordinates) {\n",
              "      coordinates = rotate(coordinates[0] * d3_radians, coordinates[1] * d3_radians);\n",
              "      return coordinates[0] *= d3_degrees, coordinates[1] *= d3_degrees, coordinates;\n",
              "    }\n",
              "    forward.invert = function(coordinates) {\n",
              "      coordinates = rotate.invert(coordinates[0] * d3_radians, coordinates[1] * d3_radians);\n",
              "      return coordinates[0] *= d3_degrees, coordinates[1] *= d3_degrees, coordinates;\n",
              "    };\n",
              "    return forward;\n",
              "  };\n",
              "  function d3_geo_identityRotation(λ, φ) {\n",
              "    return [ λ > π ? λ - τ : λ < -π ? λ + τ : λ, φ ];\n",
              "  }\n",
              "  d3_geo_identityRotation.invert = d3_geo_equirectangular;\n",
              "  function d3_geo_rotation(δλ, δφ, δγ) {\n",
              "    return δλ ? δφ || δγ ? d3_geo_compose(d3_geo_rotationλ(δλ), d3_geo_rotationφγ(δφ, δγ)) : d3_geo_rotationλ(δλ) : δφ || δγ ? d3_geo_rotationφγ(δφ, δγ) : d3_geo_identityRotation;\n",
              "  }\n",
              "  function d3_geo_forwardRotationλ(δλ) {\n",
              "    return function(λ, φ) {\n",
              "      return λ += δλ, [ λ > π ? λ - τ : λ < -π ? λ + τ : λ, φ ];\n",
              "    };\n",
              "  }\n",
              "  function d3_geo_rotationλ(δλ) {\n",
              "    var rotation = d3_geo_forwardRotationλ(δλ);\n",
              "    rotation.invert = d3_geo_forwardRotationλ(-δλ);\n",
              "    return rotation;\n",
              "  }\n",
              "  function d3_geo_rotationφγ(δφ, δγ) {\n",
              "    var cosδφ = Math.cos(δφ), sinδφ = Math.sin(δφ), cosδγ = Math.cos(δγ), sinδγ = Math.sin(δγ);\n",
              "    function rotation(λ, φ) {\n",
              "      var cosφ = Math.cos(φ), x = Math.cos(λ) * cosφ, y = Math.sin(λ) * cosφ, z = Math.sin(φ), k = z * cosδφ + x * sinδφ;\n",
              "      return [ Math.atan2(y * cosδγ - k * sinδγ, x * cosδφ - z * sinδφ), d3_asin(k * cosδγ + y * sinδγ) ];\n",
              "    }\n",
              "    rotation.invert = function(λ, φ) {\n",
              "      var cosφ = Math.cos(φ), x = Math.cos(λ) * cosφ, y = Math.sin(λ) * cosφ, z = Math.sin(φ), k = z * cosδγ - y * sinδγ;\n",
              "      return [ Math.atan2(y * cosδγ + z * sinδγ, x * cosδφ + k * sinδφ), d3_asin(k * cosδφ - x * sinδφ) ];\n",
              "    };\n",
              "    return rotation;\n",
              "  }\n",
              "  d3.geo.circle = function() {\n",
              "    var origin = [ 0, 0 ], angle, precision = 6, interpolate;\n",
              "    function circle() {\n",
              "      var center = typeof origin === \"function\" ? origin.apply(this, arguments) : origin, rotate = d3_geo_rotation(-center[0] * d3_radians, -center[1] * d3_radians, 0).invert, ring = [];\n",
              "      interpolate(null, null, 1, {\n",
              "        point: function(x, y) {\n",
              "          ring.push(x = rotate(x, y));\n",
              "          x[0] *= d3_degrees, x[1] *= d3_degrees;\n",
              "        }\n",
              "      });\n",
              "      return {\n",
              "        type: \"Polygon\",\n",
              "        coordinates: [ ring ]\n",
              "      };\n",
              "    }\n",
              "    circle.origin = function(x) {\n",
              "      if (!arguments.length) return origin;\n",
              "      origin = x;\n",
              "      return circle;\n",
              "    };\n",
              "    circle.angle = function(x) {\n",
              "      if (!arguments.length) return angle;\n",
              "      interpolate = d3_geo_circleInterpolate((angle = +x) * d3_radians, precision * d3_radians);\n",
              "      return circle;\n",
              "    };\n",
              "    circle.precision = function(_) {\n",
              "      if (!arguments.length) return precision;\n",
              "      interpolate = d3_geo_circleInterpolate(angle * d3_radians, (precision = +_) * d3_radians);\n",
              "      return circle;\n",
              "    };\n",
              "    return circle.angle(90);\n",
              "  };\n",
              "  function d3_geo_circleInterpolate(radius, precision) {\n",
              "    var cr = Math.cos(radius), sr = Math.sin(radius);\n",
              "    return function(from, to, direction, listener) {\n",
              "      var step = direction * precision;\n",
              "      if (from != null) {\n",
              "        from = d3_geo_circleAngle(cr, from);\n",
              "        to = d3_geo_circleAngle(cr, to);\n",
              "        if (direction > 0 ? from < to : from > to) from += direction * τ;\n",
              "      } else {\n",
              "        from = radius + direction * τ;\n",
              "        to = radius - .5 * step;\n",
              "      }\n",
              "      for (var point, t = from; direction > 0 ? t > to : t < to; t -= step) {\n",
              "        listener.point((point = d3_geo_spherical([ cr, -sr * Math.cos(t), -sr * Math.sin(t) ]))[0], point[1]);\n",
              "      }\n",
              "    };\n",
              "  }\n",
              "  function d3_geo_circleAngle(cr, point) {\n",
              "    var a = d3_geo_cartesian(point);\n",
              "    a[0] -= cr;\n",
              "    d3_geo_cartesianNormalize(a);\n",
              "    var angle = d3_acos(-a[1]);\n",
              "    return ((-a[2] < 0 ? -angle : angle) + 2 * Math.PI - ε) % (2 * Math.PI);\n",
              "  }\n",
              "  d3.geo.distance = function(a, b) {\n",
              "    var Δλ = (b[0] - a[0]) * d3_radians, φ0 = a[1] * d3_radians, φ1 = b[1] * d3_radians, sinΔλ = Math.sin(Δλ), cosΔλ = Math.cos(Δλ), sinφ0 = Math.sin(φ0), cosφ0 = Math.cos(φ0), sinφ1 = Math.sin(φ1), cosφ1 = Math.cos(φ1), t;\n",
              "    return Math.atan2(Math.sqrt((t = cosφ1 * sinΔλ) * t + (t = cosφ0 * sinφ1 - sinφ0 * cosφ1 * cosΔλ) * t), sinφ0 * sinφ1 + cosφ0 * cosφ1 * cosΔλ);\n",
              "  };\n",
              "  d3.geo.graticule = function() {\n",
              "    var x1, x0, X1, X0, y1, y0, Y1, Y0, dx = 10, dy = dx, DX = 90, DY = 360, x, y, X, Y, precision = 2.5;\n",
              "    function graticule() {\n",
              "      return {\n",
              "        type: \"MultiLineString\",\n",
              "        coordinates: lines()\n",
              "      };\n",
              "    }\n",
              "    function lines() {\n",
              "      return d3.range(Math.ceil(X0 / DX) * DX, X1, DX).map(X).concat(d3.range(Math.ceil(Y0 / DY) * DY, Y1, DY).map(Y)).concat(d3.range(Math.ceil(x0 / dx) * dx, x1, dx).filter(function(x) {\n",
              "        return abs(x % DX) > ε;\n",
              "      }).map(x)).concat(d3.range(Math.ceil(y0 / dy) * dy, y1, dy).filter(function(y) {\n",
              "        return abs(y % DY) > ε;\n",
              "      }).map(y));\n",
              "    }\n",
              "    graticule.lines = function() {\n",
              "      return lines().map(function(coordinates) {\n",
              "        return {\n",
              "          type: \"LineString\",\n",
              "          coordinates: coordinates\n",
              "        };\n",
              "      });\n",
              "    };\n",
              "    graticule.outline = function() {\n",
              "      return {\n",
              "        type: \"Polygon\",\n",
              "        coordinates: [ X(X0).concat(Y(Y1).slice(1), X(X1).reverse().slice(1), Y(Y0).reverse().slice(1)) ]\n",
              "      };\n",
              "    };\n",
              "    graticule.extent = function(_) {\n",
              "      if (!arguments.length) return graticule.minorExtent();\n",
              "      return graticule.majorExtent(_).minorExtent(_);\n",
              "    };\n",
              "    graticule.majorExtent = function(_) {\n",
              "      if (!arguments.length) return [ [ X0, Y0 ], [ X1, Y1 ] ];\n",
              "      X0 = +_[0][0], X1 = +_[1][0];\n",
              "      Y0 = +_[0][1], Y1 = +_[1][1];\n",
              "      if (X0 > X1) _ = X0, X0 = X1, X1 = _;\n",
              "      if (Y0 > Y1) _ = Y0, Y0 = Y1, Y1 = _;\n",
              "      return graticule.precision(precision);\n",
              "    };\n",
              "    graticule.minorExtent = function(_) {\n",
              "      if (!arguments.length) return [ [ x0, y0 ], [ x1, y1 ] ];\n",
              "      x0 = +_[0][0], x1 = +_[1][0];\n",
              "      y0 = +_[0][1], y1 = +_[1][1];\n",
              "      if (x0 > x1) _ = x0, x0 = x1, x1 = _;\n",
              "      if (y0 > y1) _ = y0, y0 = y1, y1 = _;\n",
              "      return graticule.precision(precision);\n",
              "    };\n",
              "    graticule.step = function(_) {\n",
              "      if (!arguments.length) return graticule.minorStep();\n",
              "      return graticule.majorStep(_).minorStep(_);\n",
              "    };\n",
              "    graticule.majorStep = function(_) {\n",
              "      if (!arguments.length) return [ DX, DY ];\n",
              "      DX = +_[0], DY = +_[1];\n",
              "      return graticule;\n",
              "    };\n",
              "    graticule.minorStep = function(_) {\n",
              "      if (!arguments.length) return [ dx, dy ];\n",
              "      dx = +_[0], dy = +_[1];\n",
              "      return graticule;\n",
              "    };\n",
              "    graticule.precision = function(_) {\n",
              "      if (!arguments.length) return precision;\n",
              "      precision = +_;\n",
              "      x = d3_geo_graticuleX(y0, y1, 90);\n",
              "      y = d3_geo_graticuleY(x0, x1, precision);\n",
              "      X = d3_geo_graticuleX(Y0, Y1, 90);\n",
              "      Y = d3_geo_graticuleY(X0, X1, precision);\n",
              "      return graticule;\n",
              "    };\n",
              "    return graticule.majorExtent([ [ -180, -90 + ε ], [ 180, 90 - ε ] ]).minorExtent([ [ -180, -80 - ε ], [ 180, 80 + ε ] ]);\n",
              "  };\n",
              "  function d3_geo_graticuleX(y0, y1, dy) {\n",
              "    var y = d3.range(y0, y1 - ε, dy).concat(y1);\n",
              "    return function(x) {\n",
              "      return y.map(function(y) {\n",
              "        return [ x, y ];\n",
              "      });\n",
              "    };\n",
              "  }\n",
              "  function d3_geo_graticuleY(x0, x1, dx) {\n",
              "    var x = d3.range(x0, x1 - ε, dx).concat(x1);\n",
              "    return function(y) {\n",
              "      return x.map(function(x) {\n",
              "        return [ x, y ];\n",
              "      });\n",
              "    };\n",
              "  }\n",
              "  function d3_source(d) {\n",
              "    return d.source;\n",
              "  }\n",
              "  function d3_target(d) {\n",
              "    return d.target;\n",
              "  }\n",
              "  d3.geo.greatArc = function() {\n",
              "    var source = d3_source, source_, target = d3_target, target_;\n",
              "    function greatArc() {\n",
              "      return {\n",
              "        type: \"LineString\",\n",
              "        coordinates: [ source_ || source.apply(this, arguments), target_ || target.apply(this, arguments) ]\n",
              "      };\n",
              "    }\n",
              "    greatArc.distance = function() {\n",
              "      return d3.geo.distance(source_ || source.apply(this, arguments), target_ || target.apply(this, arguments));\n",
              "    };\n",
              "    greatArc.source = function(_) {\n",
              "      if (!arguments.length) return source;\n",
              "      source = _, source_ = typeof _ === \"function\" ? null : _;\n",
              "      return greatArc;\n",
              "    };\n",
              "    greatArc.target = function(_) {\n",
              "      if (!arguments.length) return target;\n",
              "      target = _, target_ = typeof _ === \"function\" ? null : _;\n",
              "      return greatArc;\n",
              "    };\n",
              "    greatArc.precision = function() {\n",
              "      return arguments.length ? greatArc : 0;\n",
              "    };\n",
              "    return greatArc;\n",
              "  };\n",
              "  d3.geo.interpolate = function(source, target) {\n",
              "    return d3_geo_interpolate(source[0] * d3_radians, source[1] * d3_radians, target[0] * d3_radians, target[1] * d3_radians);\n",
              "  };\n",
              "  function d3_geo_interpolate(x0, y0, x1, y1) {\n",
              "    var cy0 = Math.cos(y0), sy0 = Math.sin(y0), cy1 = Math.cos(y1), sy1 = Math.sin(y1), kx0 = cy0 * Math.cos(x0), ky0 = cy0 * Math.sin(x0), kx1 = cy1 * Math.cos(x1), ky1 = cy1 * Math.sin(x1), d = 2 * Math.asin(Math.sqrt(d3_haversin(y1 - y0) + cy0 * cy1 * d3_haversin(x1 - x0))), k = 1 / Math.sin(d);\n",
              "    var interpolate = d ? function(t) {\n",
              "      var B = Math.sin(t *= d) * k, A = Math.sin(d - t) * k, x = A * kx0 + B * kx1, y = A * ky0 + B * ky1, z = A * sy0 + B * sy1;\n",
              "      return [ Math.atan2(y, x) * d3_degrees, Math.atan2(z, Math.sqrt(x * x + y * y)) * d3_degrees ];\n",
              "    } : function() {\n",
              "      return [ x0 * d3_degrees, y0 * d3_degrees ];\n",
              "    };\n",
              "    interpolate.distance = d;\n",
              "    return interpolate;\n",
              "  }\n",
              "  d3.geo.length = function(object) {\n",
              "    d3_geo_lengthSum = 0;\n",
              "    d3.geo.stream(object, d3_geo_length);\n",
              "    return d3_geo_lengthSum;\n",
              "  };\n",
              "  var d3_geo_lengthSum;\n",
              "  var d3_geo_length = {\n",
              "    sphere: d3_noop,\n",
              "    point: d3_noop,\n",
              "    lineStart: d3_geo_lengthLineStart,\n",
              "    lineEnd: d3_noop,\n",
              "    polygonStart: d3_noop,\n",
              "    polygonEnd: d3_noop\n",
              "  };\n",
              "  function d3_geo_lengthLineStart() {\n",
              "    var λ0, sinφ0, cosφ0;\n",
              "    d3_geo_length.point = function(λ, φ) {\n",
              "      λ0 = λ * d3_radians, sinφ0 = Math.sin(φ *= d3_radians), cosφ0 = Math.cos(φ);\n",
              "      d3_geo_length.point = nextPoint;\n",
              "    };\n",
              "    d3_geo_length.lineEnd = function() {\n",
              "      d3_geo_length.point = d3_geo_length.lineEnd = d3_noop;\n",
              "    };\n",
              "    function nextPoint(λ, φ) {\n",
              "      var sinφ = Math.sin(φ *= d3_radians), cosφ = Math.cos(φ), t = abs((λ *= d3_radians) - λ0), cosΔλ = Math.cos(t);\n",
              "      d3_geo_lengthSum += Math.atan2(Math.sqrt((t = cosφ * Math.sin(t)) * t + (t = cosφ0 * sinφ - sinφ0 * cosφ * cosΔλ) * t), sinφ0 * sinφ + cosφ0 * cosφ * cosΔλ);\n",
              "      λ0 = λ, sinφ0 = sinφ, cosφ0 = cosφ;\n",
              "    }\n",
              "  }\n",
              "  function d3_geo_azimuthal(scale, angle) {\n",
              "    function azimuthal(λ, φ) {\n",
              "      var cosλ = Math.cos(λ), cosφ = Math.cos(φ), k = scale(cosλ * cosφ);\n",
              "      return [ k * cosφ * Math.sin(λ), k * Math.sin(φ) ];\n",
              "    }\n",
              "    azimuthal.invert = function(x, y) {\n",
              "      var ρ = Math.sqrt(x * x + y * y), c = angle(ρ), sinc = Math.sin(c), cosc = Math.cos(c);\n",
              "      return [ Math.atan2(x * sinc, ρ * cosc), Math.asin(ρ && y * sinc / ρ) ];\n",
              "    };\n",
              "    return azimuthal;\n",
              "  }\n",
              "  var d3_geo_azimuthalEqualArea = d3_geo_azimuthal(function(cosλcosφ) {\n",
              "    return Math.sqrt(2 / (1 + cosλcosφ));\n",
              "  }, function(ρ) {\n",
              "    return 2 * Math.asin(ρ / 2);\n",
              "  });\n",
              "  (d3.geo.azimuthalEqualArea = function() {\n",
              "    return d3_geo_projection(d3_geo_azimuthalEqualArea);\n",
              "  }).raw = d3_geo_azimuthalEqualArea;\n",
              "  var d3_geo_azimuthalEquidistant = d3_geo_azimuthal(function(cosλcosφ) {\n",
              "    var c = Math.acos(cosλcosφ);\n",
              "    return c && c / Math.sin(c);\n",
              "  }, d3_identity);\n",
              "  (d3.geo.azimuthalEquidistant = function() {\n",
              "    return d3_geo_projection(d3_geo_azimuthalEquidistant);\n",
              "  }).raw = d3_geo_azimuthalEquidistant;\n",
              "  function d3_geo_conicConformal(φ0, φ1) {\n",
              "    var cosφ0 = Math.cos(φ0), t = function(φ) {\n",
              "      return Math.tan(π / 4 + φ / 2);\n",
              "    }, n = φ0 === φ1 ? Math.sin(φ0) : Math.log(cosφ0 / Math.cos(φ1)) / Math.log(t(φ1) / t(φ0)), F = cosφ0 * Math.pow(t(φ0), n) / n;\n",
              "    if (!n) return d3_geo_mercator;\n",
              "    function forward(λ, φ) {\n",
              "      if (F > 0) {\n",
              "        if (φ < -halfπ + ε) φ = -halfπ + ε;\n",
              "      } else {\n",
              "        if (φ > halfπ - ε) φ = halfπ - ε;\n",
              "      }\n",
              "      var ρ = F / Math.pow(t(φ), n);\n",
              "      return [ ρ * Math.sin(n * λ), F - ρ * Math.cos(n * λ) ];\n",
              "    }\n",
              "    forward.invert = function(x, y) {\n",
              "      var ρ0_y = F - y, ρ = d3_sgn(n) * Math.sqrt(x * x + ρ0_y * ρ0_y);\n",
              "      return [ Math.atan2(x, ρ0_y) / n, 2 * Math.atan(Math.pow(F / ρ, 1 / n)) - halfπ ];\n",
              "    };\n",
              "    return forward;\n",
              "  }\n",
              "  (d3.geo.conicConformal = function() {\n",
              "    return d3_geo_conic(d3_geo_conicConformal);\n",
              "  }).raw = d3_geo_conicConformal;\n",
              "  function d3_geo_conicEquidistant(φ0, φ1) {\n",
              "    var cosφ0 = Math.cos(φ0), n = φ0 === φ1 ? Math.sin(φ0) : (cosφ0 - Math.cos(φ1)) / (φ1 - φ0), G = cosφ0 / n + φ0;\n",
              "    if (abs(n) < ε) return d3_geo_equirectangular;\n",
              "    function forward(λ, φ) {\n",
              "      var ρ = G - φ;\n",
              "      return [ ρ * Math.sin(n * λ), G - ρ * Math.cos(n * λ) ];\n",
              "    }\n",
              "    forward.invert = function(x, y) {\n",
              "      var ρ0_y = G - y;\n",
              "      return [ Math.atan2(x, ρ0_y) / n, G - d3_sgn(n) * Math.sqrt(x * x + ρ0_y * ρ0_y) ];\n",
              "    };\n",
              "    return forward;\n",
              "  }\n",
              "  (d3.geo.conicEquidistant = function() {\n",
              "    return d3_geo_conic(d3_geo_conicEquidistant);\n",
              "  }).raw = d3_geo_conicEquidistant;\n",
              "  var d3_geo_gnomonic = d3_geo_azimuthal(function(cosλcosφ) {\n",
              "    return 1 / cosλcosφ;\n",
              "  }, Math.atan);\n",
              "  (d3.geo.gnomonic = function() {\n",
              "    return d3_geo_projection(d3_geo_gnomonic);\n",
              "  }).raw = d3_geo_gnomonic;\n",
              "  function d3_geo_mercator(λ, φ) {\n",
              "    return [ λ, Math.log(Math.tan(π / 4 + φ / 2)) ];\n",
              "  }\n",
              "  d3_geo_mercator.invert = function(x, y) {\n",
              "    return [ x, 2 * Math.atan(Math.exp(y)) - halfπ ];\n",
              "  };\n",
              "  function d3_geo_mercatorProjection(project) {\n",
              "    var m = d3_geo_projection(project), scale = m.scale, translate = m.translate, clipExtent = m.clipExtent, clipAuto;\n",
              "    m.scale = function() {\n",
              "      var v = scale.apply(m, arguments);\n",
              "      return v === m ? clipAuto ? m.clipExtent(null) : m : v;\n",
              "    };\n",
              "    m.translate = function() {\n",
              "      var v = translate.apply(m, arguments);\n",
              "      return v === m ? clipAuto ? m.clipExtent(null) : m : v;\n",
              "    };\n",
              "    m.clipExtent = function(_) {\n",
              "      var v = clipExtent.apply(m, arguments);\n",
              "      if (v === m) {\n",
              "        if (clipAuto = _ == null) {\n",
              "          var k = π * scale(), t = translate();\n",
              "          clipExtent([ [ t[0] - k, t[1] - k ], [ t[0] + k, t[1] + k ] ]);\n",
              "        }\n",
              "      } else if (clipAuto) {\n",
              "        v = null;\n",
              "      }\n",
              "      return v;\n",
              "    };\n",
              "    return m.clipExtent(null);\n",
              "  }\n",
              "  (d3.geo.mercator = function() {\n",
              "    return d3_geo_mercatorProjection(d3_geo_mercator);\n",
              "  }).raw = d3_geo_mercator;\n",
              "  var d3_geo_orthographic = d3_geo_azimuthal(function() {\n",
              "    return 1;\n",
              "  }, Math.asin);\n",
              "  (d3.geo.orthographic = function() {\n",
              "    return d3_geo_projection(d3_geo_orthographic);\n",
              "  }).raw = d3_geo_orthographic;\n",
              "  var d3_geo_stereographic = d3_geo_azimuthal(function(cosλcosφ) {\n",
              "    return 1 / (1 + cosλcosφ);\n",
              "  }, function(ρ) {\n",
              "    return 2 * Math.atan(ρ);\n",
              "  });\n",
              "  (d3.geo.stereographic = function() {\n",
              "    return d3_geo_projection(d3_geo_stereographic);\n",
              "  }).raw = d3_geo_stereographic;\n",
              "  function d3_geo_transverseMercator(λ, φ) {\n",
              "    return [ Math.log(Math.tan(π / 4 + φ / 2)), -λ ];\n",
              "  }\n",
              "  d3_geo_transverseMercator.invert = function(x, y) {\n",
              "    return [ -y, 2 * Math.atan(Math.exp(x)) - halfπ ];\n",
              "  };\n",
              "  (d3.geo.transverseMercator = function() {\n",
              "    var projection = d3_geo_mercatorProjection(d3_geo_transverseMercator), center = projection.center, rotate = projection.rotate;\n",
              "    projection.center = function(_) {\n",
              "      return _ ? center([ -_[1], _[0] ]) : (_ = center(), [ _[1], -_[0] ]);\n",
              "    };\n",
              "    projection.rotate = function(_) {\n",
              "      return _ ? rotate([ _[0], _[1], _.length > 2 ? _[2] + 90 : 90 ]) : (_ = rotate(), \n",
              "      [ _[0], _[1], _[2] - 90 ]);\n",
              "    };\n",
              "    return rotate([ 0, 0, 90 ]);\n",
              "  }).raw = d3_geo_transverseMercator;\n",
              "  d3.geom = {};\n",
              "  function d3_geom_pointX(d) {\n",
              "    return d[0];\n",
              "  }\n",
              "  function d3_geom_pointY(d) {\n",
              "    return d[1];\n",
              "  }\n",
              "  d3.geom.hull = function(vertices) {\n",
              "    var x = d3_geom_pointX, y = d3_geom_pointY;\n",
              "    if (arguments.length) return hull(vertices);\n",
              "    function hull(data) {\n",
              "      if (data.length < 3) return [];\n",
              "      var fx = d3_functor(x), fy = d3_functor(y), i, n = data.length, points = [], flippedPoints = [];\n",
              "      for (i = 0; i < n; i++) {\n",
              "        points.push([ +fx.call(this, data[i], i), +fy.call(this, data[i], i), i ]);\n",
              "      }\n",
              "      points.sort(d3_geom_hullOrder);\n",
              "      for (i = 0; i < n; i++) flippedPoints.push([ points[i][0], -points[i][1] ]);\n",
              "      var upper = d3_geom_hullUpper(points), lower = d3_geom_hullUpper(flippedPoints);\n",
              "      var skipLeft = lower[0] === upper[0], skipRight = lower[lower.length - 1] === upper[upper.length - 1], polygon = [];\n",
              "      for (i = upper.length - 1; i >= 0; --i) polygon.push(data[points[upper[i]][2]]);\n",
              "      for (i = +skipLeft; i < lower.length - skipRight; ++i) polygon.push(data[points[lower[i]][2]]);\n",
              "      return polygon;\n",
              "    }\n",
              "    hull.x = function(_) {\n",
              "      return arguments.length ? (x = _, hull) : x;\n",
              "    };\n",
              "    hull.y = function(_) {\n",
              "      return arguments.length ? (y = _, hull) : y;\n",
              "    };\n",
              "    return hull;\n",
              "  };\n",
              "  function d3_geom_hullUpper(points) {\n",
              "    var n = points.length, hull = [ 0, 1 ], hs = 2;\n",
              "    for (var i = 2; i < n; i++) {\n",
              "      while (hs > 1 && d3_cross2d(points[hull[hs - 2]], points[hull[hs - 1]], points[i]) <= 0) --hs;\n",
              "      hull[hs++] = i;\n",
              "    }\n",
              "    return hull.slice(0, hs);\n",
              "  }\n",
              "  function d3_geom_hullOrder(a, b) {\n",
              "    return a[0] - b[0] || a[1] - b[1];\n",
              "  }\n",
              "  d3.geom.polygon = function(coordinates) {\n",
              "    d3_subclass(coordinates, d3_geom_polygonPrototype);\n",
              "    return coordinates;\n",
              "  };\n",
              "  var d3_geom_polygonPrototype = d3.geom.polygon.prototype = [];\n",
              "  d3_geom_polygonPrototype.area = function() {\n",
              "    var i = -1, n = this.length, a, b = this[n - 1], area = 0;\n",
              "    while (++i < n) {\n",
              "      a = b;\n",
              "      b = this[i];\n",
              "      area += a[1] * b[0] - a[0] * b[1];\n",
              "    }\n",
              "    return area * .5;\n",
              "  };\n",
              "  d3_geom_polygonPrototype.centroid = function(k) {\n",
              "    var i = -1, n = this.length, x = 0, y = 0, a, b = this[n - 1], c;\n",
              "    if (!arguments.length) k = -1 / (6 * this.area());\n",
              "    while (++i < n) {\n",
              "      a = b;\n",
              "      b = this[i];\n",
              "      c = a[0] * b[1] - b[0] * a[1];\n",
              "      x += (a[0] + b[0]) * c;\n",
              "      y += (a[1] + b[1]) * c;\n",
              "    }\n",
              "    return [ x * k, y * k ];\n",
              "  };\n",
              "  d3_geom_polygonPrototype.clip = function(subject) {\n",
              "    var input, closed = d3_geom_polygonClosed(subject), i = -1, n = this.length - d3_geom_polygonClosed(this), j, m, a = this[n - 1], b, c, d;\n",
              "    while (++i < n) {\n",
              "      input = subject.slice();\n",
              "      subject.length = 0;\n",
              "      b = this[i];\n",
              "      c = input[(m = input.length - closed) - 1];\n",
              "      j = -1;\n",
              "      while (++j < m) {\n",
              "        d = input[j];\n",
              "        if (d3_geom_polygonInside(d, a, b)) {\n",
              "          if (!d3_geom_polygonInside(c, a, b)) {\n",
              "            subject.push(d3_geom_polygonIntersect(c, d, a, b));\n",
              "          }\n",
              "          subject.push(d);\n",
              "        } else if (d3_geom_polygonInside(c, a, b)) {\n",
              "          subject.push(d3_geom_polygonIntersect(c, d, a, b));\n",
              "        }\n",
              "        c = d;\n",
              "      }\n",
              "      if (closed) subject.push(subject[0]);\n",
              "      a = b;\n",
              "    }\n",
              "    return subject;\n",
              "  };\n",
              "  function d3_geom_polygonInside(p, a, b) {\n",
              "    return (b[0] - a[0]) * (p[1] - a[1]) < (b[1] - a[1]) * (p[0] - a[0]);\n",
              "  }\n",
              "  function d3_geom_polygonIntersect(c, d, a, b) {\n",
              "    var x1 = c[0], x3 = a[0], x21 = d[0] - x1, x43 = b[0] - x3, y1 = c[1], y3 = a[1], y21 = d[1] - y1, y43 = b[1] - y3, ua = (x43 * (y1 - y3) - y43 * (x1 - x3)) / (y43 * x21 - x43 * y21);\n",
              "    return [ x1 + ua * x21, y1 + ua * y21 ];\n",
              "  }\n",
              "  function d3_geom_polygonClosed(coordinates) {\n",
              "    var a = coordinates[0], b = coordinates[coordinates.length - 1];\n",
              "    return !(a[0] - b[0] || a[1] - b[1]);\n",
              "  }\n",
              "  var d3_geom_voronoiEdges, d3_geom_voronoiCells, d3_geom_voronoiBeaches, d3_geom_voronoiBeachPool = [], d3_geom_voronoiFirstCircle, d3_geom_voronoiCircles, d3_geom_voronoiCirclePool = [];\n",
              "  function d3_geom_voronoiBeach() {\n",
              "    d3_geom_voronoiRedBlackNode(this);\n",
              "    this.edge = this.site = this.circle = null;\n",
              "  }\n",
              "  function d3_geom_voronoiCreateBeach(site) {\n",
              "    var beach = d3_geom_voronoiBeachPool.pop() || new d3_geom_voronoiBeach();\n",
              "    beach.site = site;\n",
              "    return beach;\n",
              "  }\n",
              "  function d3_geom_voronoiDetachBeach(beach) {\n",
              "    d3_geom_voronoiDetachCircle(beach);\n",
              "    d3_geom_voronoiBeaches.remove(beach);\n",
              "    d3_geom_voronoiBeachPool.push(beach);\n",
              "    d3_geom_voronoiRedBlackNode(beach);\n",
              "  }\n",
              "  function d3_geom_voronoiRemoveBeach(beach) {\n",
              "    var circle = beach.circle, x = circle.x, y = circle.cy, vertex = {\n",
              "      x: x,\n",
              "      y: y\n",
              "    }, previous = beach.P, next = beach.N, disappearing = [ beach ];\n",
              "    d3_geom_voronoiDetachBeach(beach);\n",
              "    var lArc = previous;\n",
              "    while (lArc.circle && abs(x - lArc.circle.x) < ε && abs(y - lArc.circle.cy) < ε) {\n",
              "      previous = lArc.P;\n",
              "      disappearing.unshift(lArc);\n",
              "      d3_geom_voronoiDetachBeach(lArc);\n",
              "      lArc = previous;\n",
              "    }\n",
              "    disappearing.unshift(lArc);\n",
              "    d3_geom_voronoiDetachCircle(lArc);\n",
              "    var rArc = next;\n",
              "    while (rArc.circle && abs(x - rArc.circle.x) < ε && abs(y - rArc.circle.cy) < ε) {\n",
              "      next = rArc.N;\n",
              "      disappearing.push(rArc);\n",
              "      d3_geom_voronoiDetachBeach(rArc);\n",
              "      rArc = next;\n",
              "    }\n",
              "    disappearing.push(rArc);\n",
              "    d3_geom_voronoiDetachCircle(rArc);\n",
              "    var nArcs = disappearing.length, iArc;\n",
              "    for (iArc = 1; iArc < nArcs; ++iArc) {\n",
              "      rArc = disappearing[iArc];\n",
              "      lArc = disappearing[iArc - 1];\n",
              "      d3_geom_voronoiSetEdgeEnd(rArc.edge, lArc.site, rArc.site, vertex);\n",
              "    }\n",
              "    lArc = disappearing[0];\n",
              "    rArc = disappearing[nArcs - 1];\n",
              "    rArc.edge = d3_geom_voronoiCreateEdge(lArc.site, rArc.site, null, vertex);\n",
              "    d3_geom_voronoiAttachCircle(lArc);\n",
              "    d3_geom_voronoiAttachCircle(rArc);\n",
              "  }\n",
              "  function d3_geom_voronoiAddBeach(site) {\n",
              "    var x = site.x, directrix = site.y, lArc, rArc, dxl, dxr, node = d3_geom_voronoiBeaches._;\n",
              "    while (node) {\n",
              "      dxl = d3_geom_voronoiLeftBreakPoint(node, directrix) - x;\n",
              "      if (dxl > ε) node = node.L; else {\n",
              "        dxr = x - d3_geom_voronoiRightBreakPoint(node, directrix);\n",
              "        if (dxr > ε) {\n",
              "          if (!node.R) {\n",
              "            lArc = node;\n",
              "            break;\n",
              "          }\n",
              "          node = node.R;\n",
              "        } else {\n",
              "          if (dxl > -ε) {\n",
              "            lArc = node.P;\n",
              "            rArc = node;\n",
              "          } else if (dxr > -ε) {\n",
              "            lArc = node;\n",
              "            rArc = node.N;\n",
              "          } else {\n",
              "            lArc = rArc = node;\n",
              "          }\n",
              "          break;\n",
              "        }\n",
              "      }\n",
              "    }\n",
              "    var newArc = d3_geom_voronoiCreateBeach(site);\n",
              "    d3_geom_voronoiBeaches.insert(lArc, newArc);\n",
              "    if (!lArc && !rArc) return;\n",
              "    if (lArc === rArc) {\n",
              "      d3_geom_voronoiDetachCircle(lArc);\n",
              "      rArc = d3_geom_voronoiCreateBeach(lArc.site);\n",
              "      d3_geom_voronoiBeaches.insert(newArc, rArc);\n",
              "      newArc.edge = rArc.edge = d3_geom_voronoiCreateEdge(lArc.site, newArc.site);\n",
              "      d3_geom_voronoiAttachCircle(lArc);\n",
              "      d3_geom_voronoiAttachCircle(rArc);\n",
              "      return;\n",
              "    }\n",
              "    if (!rArc) {\n",
              "      newArc.edge = d3_geom_voronoiCreateEdge(lArc.site, newArc.site);\n",
              "      return;\n",
              "    }\n",
              "    d3_geom_voronoiDetachCircle(lArc);\n",
              "    d3_geom_voronoiDetachCircle(rArc);\n",
              "    var lSite = lArc.site, ax = lSite.x, ay = lSite.y, bx = site.x - ax, by = site.y - ay, rSite = rArc.site, cx = rSite.x - ax, cy = rSite.y - ay, d = 2 * (bx * cy - by * cx), hb = bx * bx + by * by, hc = cx * cx + cy * cy, vertex = {\n",
              "      x: (cy * hb - by * hc) / d + ax,\n",
              "      y: (bx * hc - cx * hb) / d + ay\n",
              "    };\n",
              "    d3_geom_voronoiSetEdgeEnd(rArc.edge, lSite, rSite, vertex);\n",
              "    newArc.edge = d3_geom_voronoiCreateEdge(lSite, site, null, vertex);\n",
              "    rArc.edge = d3_geom_voronoiCreateEdge(site, rSite, null, vertex);\n",
              "    d3_geom_voronoiAttachCircle(lArc);\n",
              "    d3_geom_voronoiAttachCircle(rArc);\n",
              "  }\n",
              "  function d3_geom_voronoiLeftBreakPoint(arc, directrix) {\n",
              "    var site = arc.site, rfocx = site.x, rfocy = site.y, pby2 = rfocy - directrix;\n",
              "    if (!pby2) return rfocx;\n",
              "    var lArc = arc.P;\n",
              "    if (!lArc) return -Infinity;\n",
              "    site = lArc.site;\n",
              "    var lfocx = site.x, lfocy = site.y, plby2 = lfocy - directrix;\n",
              "    if (!plby2) return lfocx;\n",
              "    var hl = lfocx - rfocx, aby2 = 1 / pby2 - 1 / plby2, b = hl / plby2;\n",
              "    if (aby2) return (-b + Math.sqrt(b * b - 2 * aby2 * (hl * hl / (-2 * plby2) - lfocy + plby2 / 2 + rfocy - pby2 / 2))) / aby2 + rfocx;\n",
              "    return (rfocx + lfocx) / 2;\n",
              "  }\n",
              "  function d3_geom_voronoiRightBreakPoint(arc, directrix) {\n",
              "    var rArc = arc.N;\n",
              "    if (rArc) return d3_geom_voronoiLeftBreakPoint(rArc, directrix);\n",
              "    var site = arc.site;\n",
              "    return site.y === directrix ? site.x : Infinity;\n",
              "  }\n",
              "  function d3_geom_voronoiCell(site) {\n",
              "    this.site = site;\n",
              "    this.edges = [];\n",
              "  }\n",
              "  d3_geom_voronoiCell.prototype.prepare = function() {\n",
              "    var halfEdges = this.edges, iHalfEdge = halfEdges.length, edge;\n",
              "    while (iHalfEdge--) {\n",
              "      edge = halfEdges[iHalfEdge].edge;\n",
              "      if (!edge.b || !edge.a) halfEdges.splice(iHalfEdge, 1);\n",
              "    }\n",
              "    halfEdges.sort(d3_geom_voronoiHalfEdgeOrder);\n",
              "    return halfEdges.length;\n",
              "  };\n",
              "  function d3_geom_voronoiCloseCells(extent) {\n",
              "    var x0 = extent[0][0], x1 = extent[1][0], y0 = extent[0][1], y1 = extent[1][1], x2, y2, x3, y3, cells = d3_geom_voronoiCells, iCell = cells.length, cell, iHalfEdge, halfEdges, nHalfEdges, start, end;\n",
              "    while (iCell--) {\n",
              "      cell = cells[iCell];\n",
              "      if (!cell || !cell.prepare()) continue;\n",
              "      halfEdges = cell.edges;\n",
              "      nHalfEdges = halfEdges.length;\n",
              "      iHalfEdge = 0;\n",
              "      while (iHalfEdge < nHalfEdges) {\n",
              "        end = halfEdges[iHalfEdge].end(), x3 = end.x, y3 = end.y;\n",
              "        start = halfEdges[++iHalfEdge % nHalfEdges].start(), x2 = start.x, y2 = start.y;\n",
              "        if (abs(x3 - x2) > ε || abs(y3 - y2) > ε) {\n",
              "          halfEdges.splice(iHalfEdge, 0, new d3_geom_voronoiHalfEdge(d3_geom_voronoiCreateBorderEdge(cell.site, end, abs(x3 - x0) < ε && y1 - y3 > ε ? {\n",
              "            x: x0,\n",
              "            y: abs(x2 - x0) < ε ? y2 : y1\n",
              "          } : abs(y3 - y1) < ε && x1 - x3 > ε ? {\n",
              "            x: abs(y2 - y1) < ε ? x2 : x1,\n",
              "            y: y1\n",
              "          } : abs(x3 - x1) < ε && y3 - y0 > ε ? {\n",
              "            x: x1,\n",
              "            y: abs(x2 - x1) < ε ? y2 : y0\n",
              "          } : abs(y3 - y0) < ε && x3 - x0 > ε ? {\n",
              "            x: abs(y2 - y0) < ε ? x2 : x0,\n",
              "            y: y0\n",
              "          } : null), cell.site, null));\n",
              "          ++nHalfEdges;\n",
              "        }\n",
              "      }\n",
              "    }\n",
              "  }\n",
              "  function d3_geom_voronoiHalfEdgeOrder(a, b) {\n",
              "    return b.angle - a.angle;\n",
              "  }\n",
              "  function d3_geom_voronoiCircle() {\n",
              "    d3_geom_voronoiRedBlackNode(this);\n",
              "    this.x = this.y = this.arc = this.site = this.cy = null;\n",
              "  }\n",
              "  function d3_geom_voronoiAttachCircle(arc) {\n",
              "    var lArc = arc.P, rArc = arc.N;\n",
              "    if (!lArc || !rArc) return;\n",
              "    var lSite = lArc.site, cSite = arc.site, rSite = rArc.site;\n",
              "    if (lSite === rSite) return;\n",
              "    var bx = cSite.x, by = cSite.y, ax = lSite.x - bx, ay = lSite.y - by, cx = rSite.x - bx, cy = rSite.y - by;\n",
              "    var d = 2 * (ax * cy - ay * cx);\n",
              "    if (d >= -ε2) return;\n",
              "    var ha = ax * ax + ay * ay, hc = cx * cx + cy * cy, x = (cy * ha - ay * hc) / d, y = (ax * hc - cx * ha) / d, cy = y + by;\n",
              "    var circle = d3_geom_voronoiCirclePool.pop() || new d3_geom_voronoiCircle();\n",
              "    circle.arc = arc;\n",
              "    circle.site = cSite;\n",
              "    circle.x = x + bx;\n",
              "    circle.y = cy + Math.sqrt(x * x + y * y);\n",
              "    circle.cy = cy;\n",
              "    arc.circle = circle;\n",
              "    var before = null, node = d3_geom_voronoiCircles._;\n",
              "    while (node) {\n",
              "      if (circle.y < node.y || circle.y === node.y && circle.x <= node.x) {\n",
              "        if (node.L) node = node.L; else {\n",
              "          before = node.P;\n",
              "          break;\n",
              "        }\n",
              "      } else {\n",
              "        if (node.R) node = node.R; else {\n",
              "          before = node;\n",
              "          break;\n",
              "        }\n",
              "      }\n",
              "    }\n",
              "    d3_geom_voronoiCircles.insert(before, circle);\n",
              "    if (!before) d3_geom_voronoiFirstCircle = circle;\n",
              "  }\n",
              "  function d3_geom_voronoiDetachCircle(arc) {\n",
              "    var circle = arc.circle;\n",
              "    if (circle) {\n",
              "      if (!circle.P) d3_geom_voronoiFirstCircle = circle.N;\n",
              "      d3_geom_voronoiCircles.remove(circle);\n",
              "      d3_geom_voronoiCirclePool.push(circle);\n",
              "      d3_geom_voronoiRedBlackNode(circle);\n",
              "      arc.circle = null;\n",
              "    }\n",
              "  }\n",
              "  function d3_geom_voronoiClipEdges(extent) {\n",
              "    var edges = d3_geom_voronoiEdges, clip = d3_geom_clipLine(extent[0][0], extent[0][1], extent[1][0], extent[1][1]), i = edges.length, e;\n",
              "    while (i--) {\n",
              "      e = edges[i];\n",
              "      if (!d3_geom_voronoiConnectEdge(e, extent) || !clip(e) || abs(e.a.x - e.b.x) < ε && abs(e.a.y - e.b.y) < ε) {\n",
              "        e.a = e.b = null;\n",
              "        edges.splice(i, 1);\n",
              "      }\n",
              "    }\n",
              "  }\n",
              "  function d3_geom_voronoiConnectEdge(edge, extent) {\n",
              "    var vb = edge.b;\n",
              "    if (vb) return true;\n",
              "    var va = edge.a, x0 = extent[0][0], x1 = extent[1][0], y0 = extent[0][1], y1 = extent[1][1], lSite = edge.l, rSite = edge.r, lx = lSite.x, ly = lSite.y, rx = rSite.x, ry = rSite.y, fx = (lx + rx) / 2, fy = (ly + ry) / 2, fm, fb;\n",
              "    if (ry === ly) {\n",
              "      if (fx < x0 || fx >= x1) return;\n",
              "      if (lx > rx) {\n",
              "        if (!va) va = {\n",
              "          x: fx,\n",
              "          y: y0\n",
              "        }; else if (va.y >= y1) return;\n",
              "        vb = {\n",
              "          x: fx,\n",
              "          y: y1\n",
              "        };\n",
              "      } else {\n",
              "        if (!va) va = {\n",
              "          x: fx,\n",
              "          y: y1\n",
              "        }; else if (va.y < y0) return;\n",
              "        vb = {\n",
              "          x: fx,\n",
              "          y: y0\n",
              "        };\n",
              "      }\n",
              "    } else {\n",
              "      fm = (lx - rx) / (ry - ly);\n",
              "      fb = fy - fm * fx;\n",
              "      if (fm < -1 || fm > 1) {\n",
              "        if (lx > rx) {\n",
              "          if (!va) va = {\n",
              "            x: (y0 - fb) / fm,\n",
              "            y: y0\n",
              "          }; else if (va.y >= y1) return;\n",
              "          vb = {\n",
              "            x: (y1 - fb) / fm,\n",
              "            y: y1\n",
              "          };\n",
              "        } else {\n",
              "          if (!va) va = {\n",
              "            x: (y1 - fb) / fm,\n",
              "            y: y1\n",
              "          }; else if (va.y < y0) return;\n",
              "          vb = {\n",
              "            x: (y0 - fb) / fm,\n",
              "            y: y0\n",
              "          };\n",
              "        }\n",
              "      } else {\n",
              "        if (ly < ry) {\n",
              "          if (!va) va = {\n",
              "            x: x0,\n",
              "            y: fm * x0 + fb\n",
              "          }; else if (va.x >= x1) return;\n",
              "          vb = {\n",
              "            x: x1,\n",
              "            y: fm * x1 + fb\n",
              "          };\n",
              "        } else {\n",
              "          if (!va) va = {\n",
              "            x: x1,\n",
              "            y: fm * x1 + fb\n",
              "          }; else if (va.x < x0) return;\n",
              "          vb = {\n",
              "            x: x0,\n",
              "            y: fm * x0 + fb\n",
              "          };\n",
              "        }\n",
              "      }\n",
              "    }\n",
              "    edge.a = va;\n",
              "    edge.b = vb;\n",
              "    return true;\n",
              "  }\n",
              "  function d3_geom_voronoiEdge(lSite, rSite) {\n",
              "    this.l = lSite;\n",
              "    this.r = rSite;\n",
              "    this.a = this.b = null;\n",
              "  }\n",
              "  function d3_geom_voronoiCreateEdge(lSite, rSite, va, vb) {\n",
              "    var edge = new d3_geom_voronoiEdge(lSite, rSite);\n",
              "    d3_geom_voronoiEdges.push(edge);\n",
              "    if (va) d3_geom_voronoiSetEdgeEnd(edge, lSite, rSite, va);\n",
              "    if (vb) d3_geom_voronoiSetEdgeEnd(edge, rSite, lSite, vb);\n",
              "    d3_geom_voronoiCells[lSite.i].edges.push(new d3_geom_voronoiHalfEdge(edge, lSite, rSite));\n",
              "    d3_geom_voronoiCells[rSite.i].edges.push(new d3_geom_voronoiHalfEdge(edge, rSite, lSite));\n",
              "    return edge;\n",
              "  }\n",
              "  function d3_geom_voronoiCreateBorderEdge(lSite, va, vb) {\n",
              "    var edge = new d3_geom_voronoiEdge(lSite, null);\n",
              "    edge.a = va;\n",
              "    edge.b = vb;\n",
              "    d3_geom_voronoiEdges.push(edge);\n",
              "    return edge;\n",
              "  }\n",
              "  function d3_geom_voronoiSetEdgeEnd(edge, lSite, rSite, vertex) {\n",
              "    if (!edge.a && !edge.b) {\n",
              "      edge.a = vertex;\n",
              "      edge.l = lSite;\n",
              "      edge.r = rSite;\n",
              "    } else if (edge.l === rSite) {\n",
              "      edge.b = vertex;\n",
              "    } else {\n",
              "      edge.a = vertex;\n",
              "    }\n",
              "  }\n",
              "  function d3_geom_voronoiHalfEdge(edge, lSite, rSite) {\n",
              "    var va = edge.a, vb = edge.b;\n",
              "    this.edge = edge;\n",
              "    this.site = lSite;\n",
              "    this.angle = rSite ? Math.atan2(rSite.y - lSite.y, rSite.x - lSite.x) : edge.l === lSite ? Math.atan2(vb.x - va.x, va.y - vb.y) : Math.atan2(va.x - vb.x, vb.y - va.y);\n",
              "  }\n",
              "  d3_geom_voronoiHalfEdge.prototype = {\n",
              "    start: function() {\n",
              "      return this.edge.l === this.site ? this.edge.a : this.edge.b;\n",
              "    },\n",
              "    end: function() {\n",
              "      return this.edge.l === this.site ? this.edge.b : this.edge.a;\n",
              "    }\n",
              "  };\n",
              "  function d3_geom_voronoiRedBlackTree() {\n",
              "    this._ = null;\n",
              "  }\n",
              "  function d3_geom_voronoiRedBlackNode(node) {\n",
              "    node.U = node.C = node.L = node.R = node.P = node.N = null;\n",
              "  }\n",
              "  d3_geom_voronoiRedBlackTree.prototype = {\n",
              "    insert: function(after, node) {\n",
              "      var parent, grandpa, uncle;\n",
              "      if (after) {\n",
              "        node.P = after;\n",
              "        node.N = after.N;\n",
              "        if (after.N) after.N.P = node;\n",
              "        after.N = node;\n",
              "        if (after.R) {\n",
              "          after = after.R;\n",
              "          while (after.L) after = after.L;\n",
              "          after.L = node;\n",
              "        } else {\n",
              "          after.R = node;\n",
              "        }\n",
              "        parent = after;\n",
              "      } else if (this._) {\n",
              "        after = d3_geom_voronoiRedBlackFirst(this._);\n",
              "        node.P = null;\n",
              "        node.N = after;\n",
              "        after.P = after.L = node;\n",
              "        parent = after;\n",
              "      } else {\n",
              "        node.P = node.N = null;\n",
              "        this._ = node;\n",
              "        parent = null;\n",
              "      }\n",
              "      node.L = node.R = null;\n",
              "      node.U = parent;\n",
              "      node.C = true;\n",
              "      after = node;\n",
              "      while (parent && parent.C) {\n",
              "        grandpa = parent.U;\n",
              "        if (parent === grandpa.L) {\n",
              "          uncle = grandpa.R;\n",
              "          if (uncle && uncle.C) {\n",
              "            parent.C = uncle.C = false;\n",
              "            grandpa.C = true;\n",
              "            after = grandpa;\n",
              "          } else {\n",
              "            if (after === parent.R) {\n",
              "              d3_geom_voronoiRedBlackRotateLeft(this, parent);\n",
              "              after = parent;\n",
              "              parent = after.U;\n",
              "            }\n",
              "            parent.C = false;\n",
              "            grandpa.C = true;\n",
              "            d3_geom_voronoiRedBlackRotateRight(this, grandpa);\n",
              "          }\n",
              "        } else {\n",
              "          uncle = grandpa.L;\n",
              "          if (uncle && uncle.C) {\n",
              "            parent.C = uncle.C = false;\n",
              "            grandpa.C = true;\n",
              "            after = grandpa;\n",
              "          } else {\n",
              "            if (after === parent.L) {\n",
              "              d3_geom_voronoiRedBlackRotateRight(this, parent);\n",
              "              after = parent;\n",
              "              parent = after.U;\n",
              "            }\n",
              "            parent.C = false;\n",
              "            grandpa.C = true;\n",
              "            d3_geom_voronoiRedBlackRotateLeft(this, grandpa);\n",
              "          }\n",
              "        }\n",
              "        parent = after.U;\n",
              "      }\n",
              "      this._.C = false;\n",
              "    },\n",
              "    remove: function(node) {\n",
              "      if (node.N) node.N.P = node.P;\n",
              "      if (node.P) node.P.N = node.N;\n",
              "      node.N = node.P = null;\n",
              "      var parent = node.U, sibling, left = node.L, right = node.R, next, red;\n",
              "      if (!left) next = right; else if (!right) next = left; else next = d3_geom_voronoiRedBlackFirst(right);\n",
              "      if (parent) {\n",
              "        if (parent.L === node) parent.L = next; else parent.R = next;\n",
              "      } else {\n",
              "        this._ = next;\n",
              "      }\n",
              "      if (left && right) {\n",
              "        red = next.C;\n",
              "        next.C = node.C;\n",
              "        next.L = left;\n",
              "        left.U = next;\n",
              "        if (next !== right) {\n",
              "          parent = next.U;\n",
              "          next.U = node.U;\n",
              "          node = next.R;\n",
              "          parent.L = node;\n",
              "          next.R = right;\n",
              "          right.U = next;\n",
              "        } else {\n",
              "          next.U = parent;\n",
              "          parent = next;\n",
              "          node = next.R;\n",
              "        }\n",
              "      } else {\n",
              "        red = node.C;\n",
              "        node = next;\n",
              "      }\n",
              "      if (node) node.U = parent;\n",
              "      if (red) return;\n",
              "      if (node && node.C) {\n",
              "        node.C = false;\n",
              "        return;\n",
              "      }\n",
              "      do {\n",
              "        if (node === this._) break;\n",
              "        if (node === parent.L) {\n",
              "          sibling = parent.R;\n",
              "          if (sibling.C) {\n",
              "            sibling.C = false;\n",
              "            parent.C = true;\n",
              "            d3_geom_voronoiRedBlackRotateLeft(this, parent);\n",
              "            sibling = parent.R;\n",
              "          }\n",
              "          if (sibling.L && sibling.L.C || sibling.R && sibling.R.C) {\n",
              "            if (!sibling.R || !sibling.R.C) {\n",
              "              sibling.L.C = false;\n",
              "              sibling.C = true;\n",
              "              d3_geom_voronoiRedBlackRotateRight(this, sibling);\n",
              "              sibling = parent.R;\n",
              "            }\n",
              "            sibling.C = parent.C;\n",
              "            parent.C = sibling.R.C = false;\n",
              "            d3_geom_voronoiRedBlackRotateLeft(this, parent);\n",
              "            node = this._;\n",
              "            break;\n",
              "          }\n",
              "        } else {\n",
              "          sibling = parent.L;\n",
              "          if (sibling.C) {\n",
              "            sibling.C = false;\n",
              "            parent.C = true;\n",
              "            d3_geom_voronoiRedBlackRotateRight(this, parent);\n",
              "            sibling = parent.L;\n",
              "          }\n",
              "          if (sibling.L && sibling.L.C || sibling.R && sibling.R.C) {\n",
              "            if (!sibling.L || !sibling.L.C) {\n",
              "              sibling.R.C = false;\n",
              "              sibling.C = true;\n",
              "              d3_geom_voronoiRedBlackRotateLeft(this, sibling);\n",
              "              sibling = parent.L;\n",
              "            }\n",
              "            sibling.C = parent.C;\n",
              "            parent.C = sibling.L.C = false;\n",
              "            d3_geom_voronoiRedBlackRotateRight(this, parent);\n",
              "            node = this._;\n",
              "            break;\n",
              "          }\n",
              "        }\n",
              "        sibling.C = true;\n",
              "        node = parent;\n",
              "        parent = parent.U;\n",
              "      } while (!node.C);\n",
              "      if (node) node.C = false;\n",
              "    }\n",
              "  };\n",
              "  function d3_geom_voronoiRedBlackRotateLeft(tree, node) {\n",
              "    var p = node, q = node.R, parent = p.U;\n",
              "    if (parent) {\n",
              "      if (parent.L === p) parent.L = q; else parent.R = q;\n",
              "    } else {\n",
              "      tree._ = q;\n",
              "    }\n",
              "    q.U = parent;\n",
              "    p.U = q;\n",
              "    p.R = q.L;\n",
              "    if (p.R) p.R.U = p;\n",
              "    q.L = p;\n",
              "  }\n",
              "  function d3_geom_voronoiRedBlackRotateRight(tree, node) {\n",
              "    var p = node, q = node.L, parent = p.U;\n",
              "    if (parent) {\n",
              "      if (parent.L === p) parent.L = q; else parent.R = q;\n",
              "    } else {\n",
              "      tree._ = q;\n",
              "    }\n",
              "    q.U = parent;\n",
              "    p.U = q;\n",
              "    p.L = q.R;\n",
              "    if (p.L) p.L.U = p;\n",
              "    q.R = p;\n",
              "  }\n",
              "  function d3_geom_voronoiRedBlackFirst(node) {\n",
              "    while (node.L) node = node.L;\n",
              "    return node;\n",
              "  }\n",
              "  function d3_geom_voronoi(sites, bbox) {\n",
              "    var site = sites.sort(d3_geom_voronoiVertexOrder).pop(), x0, y0, circle;\n",
              "    d3_geom_voronoiEdges = [];\n",
              "    d3_geom_voronoiCells = new Array(sites.length);\n",
              "    d3_geom_voronoiBeaches = new d3_geom_voronoiRedBlackTree();\n",
              "    d3_geom_voronoiCircles = new d3_geom_voronoiRedBlackTree();\n",
              "    while (true) {\n",
              "      circle = d3_geom_voronoiFirstCircle;\n",
              "      if (site && (!circle || site.y < circle.y || site.y === circle.y && site.x < circle.x)) {\n",
              "        if (site.x !== x0 || site.y !== y0) {\n",
              "          d3_geom_voronoiCells[site.i] = new d3_geom_voronoiCell(site);\n",
              "          d3_geom_voronoiAddBeach(site);\n",
              "          x0 = site.x, y0 = site.y;\n",
              "        }\n",
              "        site = sites.pop();\n",
              "      } else if (circle) {\n",
              "        d3_geom_voronoiRemoveBeach(circle.arc);\n",
              "      } else {\n",
              "        break;\n",
              "      }\n",
              "    }\n",
              "    if (bbox) d3_geom_voronoiClipEdges(bbox), d3_geom_voronoiCloseCells(bbox);\n",
              "    var diagram = {\n",
              "      cells: d3_geom_voronoiCells,\n",
              "      edges: d3_geom_voronoiEdges\n",
              "    };\n",
              "    d3_geom_voronoiBeaches = d3_geom_voronoiCircles = d3_geom_voronoiEdges = d3_geom_voronoiCells = null;\n",
              "    return diagram;\n",
              "  }\n",
              "  function d3_geom_voronoiVertexOrder(a, b) {\n",
              "    return b.y - a.y || b.x - a.x;\n",
              "  }\n",
              "  d3.geom.voronoi = function(points) {\n",
              "    var x = d3_geom_pointX, y = d3_geom_pointY, fx = x, fy = y, clipExtent = d3_geom_voronoiClipExtent;\n",
              "    if (points) return voronoi(points);\n",
              "    function voronoi(data) {\n",
              "      var polygons = new Array(data.length), x0 = clipExtent[0][0], y0 = clipExtent[0][1], x1 = clipExtent[1][0], y1 = clipExtent[1][1];\n",
              "      d3_geom_voronoi(sites(data), clipExtent).cells.forEach(function(cell, i) {\n",
              "        var edges = cell.edges, site = cell.site, polygon = polygons[i] = edges.length ? edges.map(function(e) {\n",
              "          var s = e.start();\n",
              "          return [ s.x, s.y ];\n",
              "        }) : site.x >= x0 && site.x <= x1 && site.y >= y0 && site.y <= y1 ? [ [ x0, y1 ], [ x1, y1 ], [ x1, y0 ], [ x0, y0 ] ] : [];\n",
              "        polygon.point = data[i];\n",
              "      });\n",
              "      return polygons;\n",
              "    }\n",
              "    function sites(data) {\n",
              "      return data.map(function(d, i) {\n",
              "        return {\n",
              "          x: Math.round(fx(d, i) / ε) * ε,\n",
              "          y: Math.round(fy(d, i) / ε) * ε,\n",
              "          i: i\n",
              "        };\n",
              "      });\n",
              "    }\n",
              "    voronoi.links = function(data) {\n",
              "      return d3_geom_voronoi(sites(data)).edges.filter(function(edge) {\n",
              "        return edge.l && edge.r;\n",
              "      }).map(function(edge) {\n",
              "        return {\n",
              "          source: data[edge.l.i],\n",
              "          target: data[edge.r.i]\n",
              "        };\n",
              "      });\n",
              "    };\n",
              "    voronoi.triangles = function(data) {\n",
              "      var triangles = [];\n",
              "      d3_geom_voronoi(sites(data)).cells.forEach(function(cell, i) {\n",
              "        var site = cell.site, edges = cell.edges.sort(d3_geom_voronoiHalfEdgeOrder), j = -1, m = edges.length, e0, s0, e1 = edges[m - 1].edge, s1 = e1.l === site ? e1.r : e1.l;\n",
              "        while (++j < m) {\n",
              "          e0 = e1;\n",
              "          s0 = s1;\n",
              "          e1 = edges[j].edge;\n",
              "          s1 = e1.l === site ? e1.r : e1.l;\n",
              "          if (i < s0.i && i < s1.i && d3_geom_voronoiTriangleArea(site, s0, s1) < 0) {\n",
              "            triangles.push([ data[i], data[s0.i], data[s1.i] ]);\n",
              "          }\n",
              "        }\n",
              "      });\n",
              "      return triangles;\n",
              "    };\n",
              "    voronoi.x = function(_) {\n",
              "      return arguments.length ? (fx = d3_functor(x = _), voronoi) : x;\n",
              "    };\n",
              "    voronoi.y = function(_) {\n",
              "      return arguments.length ? (fy = d3_functor(y = _), voronoi) : y;\n",
              "    };\n",
              "    voronoi.clipExtent = function(_) {\n",
              "      if (!arguments.length) return clipExtent === d3_geom_voronoiClipExtent ? null : clipExtent;\n",
              "      clipExtent = _ == null ? d3_geom_voronoiClipExtent : _;\n",
              "      return voronoi;\n",
              "    };\n",
              "    voronoi.size = function(_) {\n",
              "      if (!arguments.length) return clipExtent === d3_geom_voronoiClipExtent ? null : clipExtent && clipExtent[1];\n",
              "      return voronoi.clipExtent(_ && [ [ 0, 0 ], _ ]);\n",
              "    };\n",
              "    return voronoi;\n",
              "  };\n",
              "  var d3_geom_voronoiClipExtent = [ [ -1e6, -1e6 ], [ 1e6, 1e6 ] ];\n",
              "  function d3_geom_voronoiTriangleArea(a, b, c) {\n",
              "    return (a.x - c.x) * (b.y - a.y) - (a.x - b.x) * (c.y - a.y);\n",
              "  }\n",
              "  d3.geom.delaunay = function(vertices) {\n",
              "    return d3.geom.voronoi().triangles(vertices);\n",
              "  };\n",
              "  d3.geom.quadtree = function(points, x1, y1, x2, y2) {\n",
              "    var x = d3_geom_pointX, y = d3_geom_pointY, compat;\n",
              "    if (compat = arguments.length) {\n",
              "      x = d3_geom_quadtreeCompatX;\n",
              "      y = d3_geom_quadtreeCompatY;\n",
              "      if (compat === 3) {\n",
              "        y2 = y1;\n",
              "        x2 = x1;\n",
              "        y1 = x1 = 0;\n",
              "      }\n",
              "      return quadtree(points);\n",
              "    }\n",
              "    function quadtree(data) {\n",
              "      var d, fx = d3_functor(x), fy = d3_functor(y), xs, ys, i, n, x1_, y1_, x2_, y2_;\n",
              "      if (x1 != null) {\n",
              "        x1_ = x1, y1_ = y1, x2_ = x2, y2_ = y2;\n",
              "      } else {\n",
              "        x2_ = y2_ = -(x1_ = y1_ = Infinity);\n",
              "        xs = [], ys = [];\n",
              "        n = data.length;\n",
              "        if (compat) for (i = 0; i < n; ++i) {\n",
              "          d = data[i];\n",
              "          if (d.x < x1_) x1_ = d.x;\n",
              "          if (d.y < y1_) y1_ = d.y;\n",
              "          if (d.x > x2_) x2_ = d.x;\n",
              "          if (d.y > y2_) y2_ = d.y;\n",
              "          xs.push(d.x);\n",
              "          ys.push(d.y);\n",
              "        } else for (i = 0; i < n; ++i) {\n",
              "          var x_ = +fx(d = data[i], i), y_ = +fy(d, i);\n",
              "          if (x_ < x1_) x1_ = x_;\n",
              "          if (y_ < y1_) y1_ = y_;\n",
              "          if (x_ > x2_) x2_ = x_;\n",
              "          if (y_ > y2_) y2_ = y_;\n",
              "          xs.push(x_);\n",
              "          ys.push(y_);\n",
              "        }\n",
              "      }\n",
              "      var dx = x2_ - x1_, dy = y2_ - y1_;\n",
              "      if (dx > dy) y2_ = y1_ + dx; else x2_ = x1_ + dy;\n",
              "      function insert(n, d, x, y, x1, y1, x2, y2) {\n",
              "        if (isNaN(x) || isNaN(y)) return;\n",
              "        if (n.leaf) {\n",
              "          var nx = n.x, ny = n.y;\n",
              "          if (nx != null) {\n",
              "            if (abs(nx - x) + abs(ny - y) < .01) {\n",
              "              insertChild(n, d, x, y, x1, y1, x2, y2);\n",
              "            } else {\n",
              "              var nPoint = n.point;\n",
              "              n.x = n.y = n.point = null;\n",
              "              insertChild(n, nPoint, nx, ny, x1, y1, x2, y2);\n",
              "              insertChild(n, d, x, y, x1, y1, x2, y2);\n",
              "            }\n",
              "          } else {\n",
              "            n.x = x, n.y = y, n.point = d;\n",
              "          }\n",
              "        } else {\n",
              "          insertChild(n, d, x, y, x1, y1, x2, y2);\n",
              "        }\n",
              "      }\n",
              "      function insertChild(n, d, x, y, x1, y1, x2, y2) {\n",
              "        var xm = (x1 + x2) * .5, ym = (y1 + y2) * .5, right = x >= xm, below = y >= ym, i = below << 1 | right;\n",
              "        n.leaf = false;\n",
              "        n = n.nodes[i] || (n.nodes[i] = d3_geom_quadtreeNode());\n",
              "        if (right) x1 = xm; else x2 = xm;\n",
              "        if (below) y1 = ym; else y2 = ym;\n",
              "        insert(n, d, x, y, x1, y1, x2, y2);\n",
              "      }\n",
              "      var root = d3_geom_quadtreeNode();\n",
              "      root.add = function(d) {\n",
              "        insert(root, d, +fx(d, ++i), +fy(d, i), x1_, y1_, x2_, y2_);\n",
              "      };\n",
              "      root.visit = function(f) {\n",
              "        d3_geom_quadtreeVisit(f, root, x1_, y1_, x2_, y2_);\n",
              "      };\n",
              "      root.find = function(point) {\n",
              "        return d3_geom_quadtreeFind(root, point[0], point[1], x1_, y1_, x2_, y2_);\n",
              "      };\n",
              "      i = -1;\n",
              "      if (x1 == null) {\n",
              "        while (++i < n) {\n",
              "          insert(root, data[i], xs[i], ys[i], x1_, y1_, x2_, y2_);\n",
              "        }\n",
              "        --i;\n",
              "      } else data.forEach(root.add);\n",
              "      xs = ys = data = d = null;\n",
              "      return root;\n",
              "    }\n",
              "    quadtree.x = function(_) {\n",
              "      return arguments.length ? (x = _, quadtree) : x;\n",
              "    };\n",
              "    quadtree.y = function(_) {\n",
              "      return arguments.length ? (y = _, quadtree) : y;\n",
              "    };\n",
              "    quadtree.extent = function(_) {\n",
              "      if (!arguments.length) return x1 == null ? null : [ [ x1, y1 ], [ x2, y2 ] ];\n",
              "      if (_ == null) x1 = y1 = x2 = y2 = null; else x1 = +_[0][0], y1 = +_[0][1], x2 = +_[1][0], \n",
              "      y2 = +_[1][1];\n",
              "      return quadtree;\n",
              "    };\n",
              "    quadtree.size = function(_) {\n",
              "      if (!arguments.length) return x1 == null ? null : [ x2 - x1, y2 - y1 ];\n",
              "      if (_ == null) x1 = y1 = x2 = y2 = null; else x1 = y1 = 0, x2 = +_[0], y2 = +_[1];\n",
              "      return quadtree;\n",
              "    };\n",
              "    return quadtree;\n",
              "  };\n",
              "  function d3_geom_quadtreeCompatX(d) {\n",
              "    return d.x;\n",
              "  }\n",
              "  function d3_geom_quadtreeCompatY(d) {\n",
              "    return d.y;\n",
              "  }\n",
              "  function d3_geom_quadtreeNode() {\n",
              "    return {\n",
              "      leaf: true,\n",
              "      nodes: [],\n",
              "      point: null,\n",
              "      x: null,\n",
              "      y: null\n",
              "    };\n",
              "  }\n",
              "  function d3_geom_quadtreeVisit(f, node, x1, y1, x2, y2) {\n",
              "    if (!f(node, x1, y1, x2, y2)) {\n",
              "      var sx = (x1 + x2) * .5, sy = (y1 + y2) * .5, children = node.nodes;\n",
              "      if (children[0]) d3_geom_quadtreeVisit(f, children[0], x1, y1, sx, sy);\n",
              "      if (children[1]) d3_geom_quadtreeVisit(f, children[1], sx, y1, x2, sy);\n",
              "      if (children[2]) d3_geom_quadtreeVisit(f, children[2], x1, sy, sx, y2);\n",
              "      if (children[3]) d3_geom_quadtreeVisit(f, children[3], sx, sy, x2, y2);\n",
              "    }\n",
              "  }\n",
              "  function d3_geom_quadtreeFind(root, x, y, x0, y0, x3, y3) {\n",
              "    var minDistance2 = Infinity, closestPoint;\n",
              "    (function find(node, x1, y1, x2, y2) {\n",
              "      if (x1 > x3 || y1 > y3 || x2 < x0 || y2 < y0) return;\n",
              "      if (point = node.point) {\n",
              "        var point, dx = x - node.x, dy = y - node.y, distance2 = dx * dx + dy * dy;\n",
              "        if (distance2 < minDistance2) {\n",
              "          var distance = Math.sqrt(minDistance2 = distance2);\n",
              "          x0 = x - distance, y0 = y - distance;\n",
              "          x3 = x + distance, y3 = y + distance;\n",
              "          closestPoint = point;\n",
              "        }\n",
              "      }\n",
              "      var children = node.nodes, xm = (x1 + x2) * .5, ym = (y1 + y2) * .5, right = x >= xm, below = y >= ym;\n",
              "      for (var i = below << 1 | right, j = i + 4; i < j; ++i) {\n",
              "        if (node = children[i & 3]) switch (i & 3) {\n",
              "         case 0:\n",
              "          find(node, x1, y1, xm, ym);\n",
              "          break;\n",
              "\n",
              "         case 1:\n",
              "          find(node, xm, y1, x2, ym);\n",
              "          break;\n",
              "\n",
              "         case 2:\n",
              "          find(node, x1, ym, xm, y2);\n",
              "          break;\n",
              "\n",
              "         case 3:\n",
              "          find(node, xm, ym, x2, y2);\n",
              "          break;\n",
              "        }\n",
              "      }\n",
              "    })(root, x0, y0, x3, y3);\n",
              "    return closestPoint;\n",
              "  }\n",
              "  d3.interpolateRgb = d3_interpolateRgb;\n",
              "  function d3_interpolateRgb(a, b) {\n",
              "    a = d3.rgb(a);\n",
              "    b = d3.rgb(b);\n",
              "    var ar = a.r, ag = a.g, ab = a.b, br = b.r - ar, bg = b.g - ag, bb = b.b - ab;\n",
              "    return function(t) {\n",
              "      return \"#\" + d3_rgb_hex(Math.round(ar + br * t)) + d3_rgb_hex(Math.round(ag + bg * t)) + d3_rgb_hex(Math.round(ab + bb * t));\n",
              "    };\n",
              "  }\n",
              "  d3.interpolateObject = d3_interpolateObject;\n",
              "  function d3_interpolateObject(a, b) {\n",
              "    var i = {}, c = {}, k;\n",
              "    for (k in a) {\n",
              "      if (k in b) {\n",
              "        i[k] = d3_interpolate(a[k], b[k]);\n",
              "      } else {\n",
              "        c[k] = a[k];\n",
              "      }\n",
              "    }\n",
              "    for (k in b) {\n",
              "      if (!(k in a)) {\n",
              "        c[k] = b[k];\n",
              "      }\n",
              "    }\n",
              "    return function(t) {\n",
              "      for (k in i) c[k] = i[k](t);\n",
              "      return c;\n",
              "    };\n",
              "  }\n",
              "  d3.interpolateNumber = d3_interpolateNumber;\n",
              "  function d3_interpolateNumber(a, b) {\n",
              "    a = +a, b = +b;\n",
              "    return function(t) {\n",
              "      return a * (1 - t) + b * t;\n",
              "    };\n",
              "  }\n",
              "  d3.interpolateString = d3_interpolateString;\n",
              "  function d3_interpolateString(a, b) {\n",
              "    var bi = d3_interpolate_numberA.lastIndex = d3_interpolate_numberB.lastIndex = 0, am, bm, bs, i = -1, s = [], q = [];\n",
              "    a = a + \"\", b = b + \"\";\n",
              "    while ((am = d3_interpolate_numberA.exec(a)) && (bm = d3_interpolate_numberB.exec(b))) {\n",
              "      if ((bs = bm.index) > bi) {\n",
              "        bs = b.slice(bi, bs);\n",
              "        if (s[i]) s[i] += bs; else s[++i] = bs;\n",
              "      }\n",
              "      if ((am = am[0]) === (bm = bm[0])) {\n",
              "        if (s[i]) s[i] += bm; else s[++i] = bm;\n",
              "      } else {\n",
              "        s[++i] = null;\n",
              "        q.push({\n",
              "          i: i,\n",
              "          x: d3_interpolateNumber(am, bm)\n",
              "        });\n",
              "      }\n",
              "      bi = d3_interpolate_numberB.lastIndex;\n",
              "    }\n",
              "    if (bi < b.length) {\n",
              "      bs = b.slice(bi);\n",
              "      if (s[i]) s[i] += bs; else s[++i] = bs;\n",
              "    }\n",
              "    return s.length < 2 ? q[0] ? (b = q[0].x, function(t) {\n",
              "      return b(t) + \"\";\n",
              "    }) : function() {\n",
              "      return b;\n",
              "    } : (b = q.length, function(t) {\n",
              "      for (var i = 0, o; i < b; ++i) s[(o = q[i]).i] = o.x(t);\n",
              "      return s.join(\"\");\n",
              "    });\n",
              "  }\n",
              "  var d3_interpolate_numberA = /[-+]?(?:\\d+\\.?\\d*|\\.?\\d+)(?:[eE][-+]?\\d+)?/g, d3_interpolate_numberB = new RegExp(d3_interpolate_numberA.source, \"g\");\n",
              "  d3.interpolate = d3_interpolate;\n",
              "  function d3_interpolate(a, b) {\n",
              "    var i = d3.interpolators.length, f;\n",
              "    while (--i >= 0 && !(f = d3.interpolators[i](a, b))) ;\n",
              "    return f;\n",
              "  }\n",
              "  d3.interpolators = [ function(a, b) {\n",
              "    var t = typeof b;\n",
              "    return (t === \"string\" ? d3_rgb_names.has(b.toLowerCase()) || /^(#|rgb\\(|hsl\\()/i.test(b) ? d3_interpolateRgb : d3_interpolateString : b instanceof d3_color ? d3_interpolateRgb : Array.isArray(b) ? d3_interpolateArray : t === \"object\" && isNaN(b) ? d3_interpolateObject : d3_interpolateNumber)(a, b);\n",
              "  } ];\n",
              "  d3.interpolateArray = d3_interpolateArray;\n",
              "  function d3_interpolateArray(a, b) {\n",
              "    var x = [], c = [], na = a.length, nb = b.length, n0 = Math.min(a.length, b.length), i;\n",
              "    for (i = 0; i < n0; ++i) x.push(d3_interpolate(a[i], b[i]));\n",
              "    for (;i < na; ++i) c[i] = a[i];\n",
              "    for (;i < nb; ++i) c[i] = b[i];\n",
              "    return function(t) {\n",
              "      for (i = 0; i < n0; ++i) c[i] = x[i](t);\n",
              "      return c;\n",
              "    };\n",
              "  }\n",
              "  var d3_ease_default = function() {\n",
              "    return d3_identity;\n",
              "  };\n",
              "  var d3_ease = d3.map({\n",
              "    linear: d3_ease_default,\n",
              "    poly: d3_ease_poly,\n",
              "    quad: function() {\n",
              "      return d3_ease_quad;\n",
              "    },\n",
              "    cubic: function() {\n",
              "      return d3_ease_cubic;\n",
              "    },\n",
              "    sin: function() {\n",
              "      return d3_ease_sin;\n",
              "    },\n",
              "    exp: function() {\n",
              "      return d3_ease_exp;\n",
              "    },\n",
              "    circle: function() {\n",
              "      return d3_ease_circle;\n",
              "    },\n",
              "    elastic: d3_ease_elastic,\n",
              "    back: d3_ease_back,\n",
              "    bounce: function() {\n",
              "      return d3_ease_bounce;\n",
              "    }\n",
              "  });\n",
              "  var d3_ease_mode = d3.map({\n",
              "    \"in\": d3_identity,\n",
              "    out: d3_ease_reverse,\n",
              "    \"in-out\": d3_ease_reflect,\n",
              "    \"out-in\": function(f) {\n",
              "      return d3_ease_reflect(d3_ease_reverse(f));\n",
              "    }\n",
              "  });\n",
              "  d3.ease = function(name) {\n",
              "    var i = name.indexOf(\"-\"), t = i >= 0 ? name.slice(0, i) : name, m = i >= 0 ? name.slice(i + 1) : \"in\";\n",
              "    t = d3_ease.get(t) || d3_ease_default;\n",
              "    m = d3_ease_mode.get(m) || d3_identity;\n",
              "    return d3_ease_clamp(m(t.apply(null, d3_arraySlice.call(arguments, 1))));\n",
              "  };\n",
              "  function d3_ease_clamp(f) {\n",
              "    return function(t) {\n",
              "      return t <= 0 ? 0 : t >= 1 ? 1 : f(t);\n",
              "    };\n",
              "  }\n",
              "  function d3_ease_reverse(f) {\n",
              "    return function(t) {\n",
              "      return 1 - f(1 - t);\n",
              "    };\n",
              "  }\n",
              "  function d3_ease_reflect(f) {\n",
              "    return function(t) {\n",
              "      return .5 * (t < .5 ? f(2 * t) : 2 - f(2 - 2 * t));\n",
              "    };\n",
              "  }\n",
              "  function d3_ease_quad(t) {\n",
              "    return t * t;\n",
              "  }\n",
              "  function d3_ease_cubic(t) {\n",
              "    return t * t * t;\n",
              "  }\n",
              "  function d3_ease_cubicInOut(t) {\n",
              "    if (t <= 0) return 0;\n",
              "    if (t >= 1) return 1;\n",
              "    var t2 = t * t, t3 = t2 * t;\n",
              "    return 4 * (t < .5 ? t3 : 3 * (t - t2) + t3 - .75);\n",
              "  }\n",
              "  function d3_ease_poly(e) {\n",
              "    return function(t) {\n",
              "      return Math.pow(t, e);\n",
              "    };\n",
              "  }\n",
              "  function d3_ease_sin(t) {\n",
              "    return 1 - Math.cos(t * halfπ);\n",
              "  }\n",
              "  function d3_ease_exp(t) {\n",
              "    return Math.pow(2, 10 * (t - 1));\n",
              "  }\n",
              "  function d3_ease_circle(t) {\n",
              "    return 1 - Math.sqrt(1 - t * t);\n",
              "  }\n",
              "  function d3_ease_elastic(a, p) {\n",
              "    var s;\n",
              "    if (arguments.length < 2) p = .45;\n",
              "    if (arguments.length) s = p / τ * Math.asin(1 / a); else a = 1, s = p / 4;\n",
              "    return function(t) {\n",
              "      return 1 + a * Math.pow(2, -10 * t) * Math.sin((t - s) * τ / p);\n",
              "    };\n",
              "  }\n",
              "  function d3_ease_back(s) {\n",
              "    if (!s) s = 1.70158;\n",
              "    return function(t) {\n",
              "      return t * t * ((s + 1) * t - s);\n",
              "    };\n",
              "  }\n",
              "  function d3_ease_bounce(t) {\n",
              "    return t < 1 / 2.75 ? 7.5625 * t * t : t < 2 / 2.75 ? 7.5625 * (t -= 1.5 / 2.75) * t + .75 : t < 2.5 / 2.75 ? 7.5625 * (t -= 2.25 / 2.75) * t + .9375 : 7.5625 * (t -= 2.625 / 2.75) * t + .984375;\n",
              "  }\n",
              "  d3.interpolateHcl = d3_interpolateHcl;\n",
              "  function d3_interpolateHcl(a, b) {\n",
              "    a = d3.hcl(a);\n",
              "    b = d3.hcl(b);\n",
              "    var ah = a.h, ac = a.c, al = a.l, bh = b.h - ah, bc = b.c - ac, bl = b.l - al;\n",
              "    if (isNaN(bc)) bc = 0, ac = isNaN(ac) ? b.c : ac;\n",
              "    if (isNaN(bh)) bh = 0, ah = isNaN(ah) ? b.h : ah; else if (bh > 180) bh -= 360; else if (bh < -180) bh += 360;\n",
              "    return function(t) {\n",
              "      return d3_hcl_lab(ah + bh * t, ac + bc * t, al + bl * t) + \"\";\n",
              "    };\n",
              "  }\n",
              "  d3.interpolateHsl = d3_interpolateHsl;\n",
              "  function d3_interpolateHsl(a, b) {\n",
              "    a = d3.hsl(a);\n",
              "    b = d3.hsl(b);\n",
              "    var ah = a.h, as = a.s, al = a.l, bh = b.h - ah, bs = b.s - as, bl = b.l - al;\n",
              "    if (isNaN(bs)) bs = 0, as = isNaN(as) ? b.s : as;\n",
              "    if (isNaN(bh)) bh = 0, ah = isNaN(ah) ? b.h : ah; else if (bh > 180) bh -= 360; else if (bh < -180) bh += 360;\n",
              "    return function(t) {\n",
              "      return d3_hsl_rgb(ah + bh * t, as + bs * t, al + bl * t) + \"\";\n",
              "    };\n",
              "  }\n",
              "  d3.interpolateLab = d3_interpolateLab;\n",
              "  function d3_interpolateLab(a, b) {\n",
              "    a = d3.lab(a);\n",
              "    b = d3.lab(b);\n",
              "    var al = a.l, aa = a.a, ab = a.b, bl = b.l - al, ba = b.a - aa, bb = b.b - ab;\n",
              "    return function(t) {\n",
              "      return d3_lab_rgb(al + bl * t, aa + ba * t, ab + bb * t) + \"\";\n",
              "    };\n",
              "  }\n",
              "  d3.interpolateRound = d3_interpolateRound;\n",
              "  function d3_interpolateRound(a, b) {\n",
              "    b -= a;\n",
              "    return function(t) {\n",
              "      return Math.round(a + b * t);\n",
              "    };\n",
              "  }\n",
              "  d3.transform = function(string) {\n",
              "    var g = d3_document.createElementNS(d3.ns.prefix.svg, \"g\");\n",
              "    return (d3.transform = function(string) {\n",
              "      if (string != null) {\n",
              "        g.setAttribute(\"transform\", string);\n",
              "        var t = g.transform.baseVal.consolidate();\n",
              "      }\n",
              "      return new d3_transform(t ? t.matrix : d3_transformIdentity);\n",
              "    })(string);\n",
              "  };\n",
              "  function d3_transform(m) {\n",
              "    var r0 = [ m.a, m.b ], r1 = [ m.c, m.d ], kx = d3_transformNormalize(r0), kz = d3_transformDot(r0, r1), ky = d3_transformNormalize(d3_transformCombine(r1, r0, -kz)) || 0;\n",
              "    if (r0[0] * r1[1] < r1[0] * r0[1]) {\n",
              "      r0[0] *= -1;\n",
              "      r0[1] *= -1;\n",
              "      kx *= -1;\n",
              "      kz *= -1;\n",
              "    }\n",
              "    this.rotate = (kx ? Math.atan2(r0[1], r0[0]) : Math.atan2(-r1[0], r1[1])) * d3_degrees;\n",
              "    this.translate = [ m.e, m.f ];\n",
              "    this.scale = [ kx, ky ];\n",
              "    this.skew = ky ? Math.atan2(kz, ky) * d3_degrees : 0;\n",
              "  }\n",
              "  d3_transform.prototype.toString = function() {\n",
              "    return \"translate(\" + this.translate + \")rotate(\" + this.rotate + \")skewX(\" + this.skew + \")scale(\" + this.scale + \")\";\n",
              "  };\n",
              "  function d3_transformDot(a, b) {\n",
              "    return a[0] * b[0] + a[1] * b[1];\n",
              "  }\n",
              "  function d3_transformNormalize(a) {\n",
              "    var k = Math.sqrt(d3_transformDot(a, a));\n",
              "    if (k) {\n",
              "      a[0] /= k;\n",
              "      a[1] /= k;\n",
              "    }\n",
              "    return k;\n",
              "  }\n",
              "  function d3_transformCombine(a, b, k) {\n",
              "    a[0] += k * b[0];\n",
              "    a[1] += k * b[1];\n",
              "    return a;\n",
              "  }\n",
              "  var d3_transformIdentity = {\n",
              "    a: 1,\n",
              "    b: 0,\n",
              "    c: 0,\n",
              "    d: 1,\n",
              "    e: 0,\n",
              "    f: 0\n",
              "  };\n",
              "  d3.interpolateTransform = d3_interpolateTransform;\n",
              "  function d3_interpolateTransformPop(s) {\n",
              "    return s.length ? s.pop() + \",\" : \"\";\n",
              "  }\n",
              "  function d3_interpolateTranslate(ta, tb, s, q) {\n",
              "    if (ta[0] !== tb[0] || ta[1] !== tb[1]) {\n",
              "      var i = s.push(\"translate(\", null, \",\", null, \")\");\n",
              "      q.push({\n",
              "        i: i - 4,\n",
              "        x: d3_interpolateNumber(ta[0], tb[0])\n",
              "      }, {\n",
              "        i: i - 2,\n",
              "        x: d3_interpolateNumber(ta[1], tb[1])\n",
              "      });\n",
              "    } else if (tb[0] || tb[1]) {\n",
              "      s.push(\"translate(\" + tb + \")\");\n",
              "    }\n",
              "  }\n",
              "  function d3_interpolateRotate(ra, rb, s, q) {\n",
              "    if (ra !== rb) {\n",
              "      if (ra - rb > 180) rb += 360; else if (rb - ra > 180) ra += 360;\n",
              "      q.push({\n",
              "        i: s.push(d3_interpolateTransformPop(s) + \"rotate(\", null, \")\") - 2,\n",
              "        x: d3_interpolateNumber(ra, rb)\n",
              "      });\n",
              "    } else if (rb) {\n",
              "      s.push(d3_interpolateTransformPop(s) + \"rotate(\" + rb + \")\");\n",
              "    }\n",
              "  }\n",
              "  function d3_interpolateSkew(wa, wb, s, q) {\n",
              "    if (wa !== wb) {\n",
              "      q.push({\n",
              "        i: s.push(d3_interpolateTransformPop(s) + \"skewX(\", null, \")\") - 2,\n",
              "        x: d3_interpolateNumber(wa, wb)\n",
              "      });\n",
              "    } else if (wb) {\n",
              "      s.push(d3_interpolateTransformPop(s) + \"skewX(\" + wb + \")\");\n",
              "    }\n",
              "  }\n",
              "  function d3_interpolateScale(ka, kb, s, q) {\n",
              "    if (ka[0] !== kb[0] || ka[1] !== kb[1]) {\n",
              "      var i = s.push(d3_interpolateTransformPop(s) + \"scale(\", null, \",\", null, \")\");\n",
              "      q.push({\n",
              "        i: i - 4,\n",
              "        x: d3_interpolateNumber(ka[0], kb[0])\n",
              "      }, {\n",
              "        i: i - 2,\n",
              "        x: d3_interpolateNumber(ka[1], kb[1])\n",
              "      });\n",
              "    } else if (kb[0] !== 1 || kb[1] !== 1) {\n",
              "      s.push(d3_interpolateTransformPop(s) + \"scale(\" + kb + \")\");\n",
              "    }\n",
              "  }\n",
              "  function d3_interpolateTransform(a, b) {\n",
              "    var s = [], q = [];\n",
              "    a = d3.transform(a), b = d3.transform(b);\n",
              "    d3_interpolateTranslate(a.translate, b.translate, s, q);\n",
              "    d3_interpolateRotate(a.rotate, b.rotate, s, q);\n",
              "    d3_interpolateSkew(a.skew, b.skew, s, q);\n",
              "    d3_interpolateScale(a.scale, b.scale, s, q);\n",
              "    a = b = null;\n",
              "    return function(t) {\n",
              "      var i = -1, n = q.length, o;\n",
              "      while (++i < n) s[(o = q[i]).i] = o.x(t);\n",
              "      return s.join(\"\");\n",
              "    };\n",
              "  }\n",
              "  function d3_uninterpolateNumber(a, b) {\n",
              "    b = (b -= a = +a) || 1 / b;\n",
              "    return function(x) {\n",
              "      return (x - a) / b;\n",
              "    };\n",
              "  }\n",
              "  function d3_uninterpolateClamp(a, b) {\n",
              "    b = (b -= a = +a) || 1 / b;\n",
              "    return function(x) {\n",
              "      return Math.max(0, Math.min(1, (x - a) / b));\n",
              "    };\n",
              "  }\n",
              "  d3.layout = {};\n",
              "  d3.layout.bundle = function() {\n",
              "    return function(links) {\n",
              "      var paths = [], i = -1, n = links.length;\n",
              "      while (++i < n) paths.push(d3_layout_bundlePath(links[i]));\n",
              "      return paths;\n",
              "    };\n",
              "  };\n",
              "  function d3_layout_bundlePath(link) {\n",
              "    var start = link.source, end = link.target, lca = d3_layout_bundleLeastCommonAncestor(start, end), points = [ start ];\n",
              "    while (start !== lca) {\n",
              "      start = start.parent;\n",
              "      points.push(start);\n",
              "    }\n",
              "    var k = points.length;\n",
              "    while (end !== lca) {\n",
              "      points.splice(k, 0, end);\n",
              "      end = end.parent;\n",
              "    }\n",
              "    return points;\n",
              "  }\n",
              "  function d3_layout_bundleAncestors(node) {\n",
              "    var ancestors = [], parent = node.parent;\n",
              "    while (parent != null) {\n",
              "      ancestors.push(node);\n",
              "      node = parent;\n",
              "      parent = parent.parent;\n",
              "    }\n",
              "    ancestors.push(node);\n",
              "    return ancestors;\n",
              "  }\n",
              "  function d3_layout_bundleLeastCommonAncestor(a, b) {\n",
              "    if (a === b) return a;\n",
              "    var aNodes = d3_layout_bundleAncestors(a), bNodes = d3_layout_bundleAncestors(b), aNode = aNodes.pop(), bNode = bNodes.pop(), sharedNode = null;\n",
              "    while (aNode === bNode) {\n",
              "      sharedNode = aNode;\n",
              "      aNode = aNodes.pop();\n",
              "      bNode = bNodes.pop();\n",
              "    }\n",
              "    return sharedNode;\n",
              "  }\n",
              "  d3.layout.chord = function() {\n",
              "    var chord = {}, chords, groups, matrix, n, padding = 0, sortGroups, sortSubgroups, sortChords;\n",
              "    function relayout() {\n",
              "      var subgroups = {}, groupSums = [], groupIndex = d3.range(n), subgroupIndex = [], k, x, x0, i, j;\n",
              "      chords = [];\n",
              "      groups = [];\n",
              "      k = 0, i = -1;\n",
              "      while (++i < n) {\n",
              "        x = 0, j = -1;\n",
              "        while (++j < n) {\n",
              "          x += matrix[i][j];\n",
              "        }\n",
              "        groupSums.push(x);\n",
              "        subgroupIndex.push(d3.range(n));\n",
              "        k += x;\n",
              "      }\n",
              "      if (sortGroups) {\n",
              "        groupIndex.sort(function(a, b) {\n",
              "          return sortGroups(groupSums[a], groupSums[b]);\n",
              "        });\n",
              "      }\n",
              "      if (sortSubgroups) {\n",
              "        subgroupIndex.forEach(function(d, i) {\n",
              "          d.sort(function(a, b) {\n",
              "            return sortSubgroups(matrix[i][a], matrix[i][b]);\n",
              "          });\n",
              "        });\n",
              "      }\n",
              "      k = (τ - padding * n) / k;\n",
              "      x = 0, i = -1;\n",
              "      while (++i < n) {\n",
              "        x0 = x, j = -1;\n",
              "        while (++j < n) {\n",
              "          var di = groupIndex[i], dj = subgroupIndex[di][j], v = matrix[di][dj], a0 = x, a1 = x += v * k;\n",
              "          subgroups[di + \"-\" + dj] = {\n",
              "            index: di,\n",
              "            subindex: dj,\n",
              "            startAngle: a0,\n",
              "            endAngle: a1,\n",
              "            value: v\n",
              "          };\n",
              "        }\n",
              "        groups[di] = {\n",
              "          index: di,\n",
              "          startAngle: x0,\n",
              "          endAngle: x,\n",
              "          value: groupSums[di]\n",
              "        };\n",
              "        x += padding;\n",
              "      }\n",
              "      i = -1;\n",
              "      while (++i < n) {\n",
              "        j = i - 1;\n",
              "        while (++j < n) {\n",
              "          var source = subgroups[i + \"-\" + j], target = subgroups[j + \"-\" + i];\n",
              "          if (source.value || target.value) {\n",
              "            chords.push(source.value < target.value ? {\n",
              "              source: target,\n",
              "              target: source\n",
              "            } : {\n",
              "              source: source,\n",
              "              target: target\n",
              "            });\n",
              "          }\n",
              "        }\n",
              "      }\n",
              "      if (sortChords) resort();\n",
              "    }\n",
              "    function resort() {\n",
              "      chords.sort(function(a, b) {\n",
              "        return sortChords((a.source.value + a.target.value) / 2, (b.source.value + b.target.value) / 2);\n",
              "      });\n",
              "    }\n",
              "    chord.matrix = function(x) {\n",
              "      if (!arguments.length) return matrix;\n",
              "      n = (matrix = x) && matrix.length;\n",
              "      chords = groups = null;\n",
              "      return chord;\n",
              "    };\n",
              "    chord.padding = function(x) {\n",
              "      if (!arguments.length) return padding;\n",
              "      padding = x;\n",
              "      chords = groups = null;\n",
              "      return chord;\n",
              "    };\n",
              "    chord.sortGroups = function(x) {\n",
              "      if (!arguments.length) return sortGroups;\n",
              "      sortGroups = x;\n",
              "      chords = groups = null;\n",
              "      return chord;\n",
              "    };\n",
              "    chord.sortSubgroups = function(x) {\n",
              "      if (!arguments.length) return sortSubgroups;\n",
              "      sortSubgroups = x;\n",
              "      chords = null;\n",
              "      return chord;\n",
              "    };\n",
              "    chord.sortChords = function(x) {\n",
              "      if (!arguments.length) return sortChords;\n",
              "      sortChords = x;\n",
              "      if (chords) resort();\n",
              "      return chord;\n",
              "    };\n",
              "    chord.chords = function() {\n",
              "      if (!chords) relayout();\n",
              "      return chords;\n",
              "    };\n",
              "    chord.groups = function() {\n",
              "      if (!groups) relayout();\n",
              "      return groups;\n",
              "    };\n",
              "    return chord;\n",
              "  };\n",
              "  d3.layout.force = function() {\n",
              "    var force = {}, event = d3.dispatch(\"start\", \"tick\", \"end\"), timer, size = [ 1, 1 ], drag, alpha, friction = .9, linkDistance = d3_layout_forceLinkDistance, linkStrength = d3_layout_forceLinkStrength, charge = -30, chargeDistance2 = d3_layout_forceChargeDistance2, gravity = .1, theta2 = .64, nodes = [], links = [], distances, strengths, charges;\n",
              "    function repulse(node) {\n",
              "      return function(quad, x1, _, x2) {\n",
              "        if (quad.point !== node) {\n",
              "          var dx = quad.cx - node.x, dy = quad.cy - node.y, dw = x2 - x1, dn = dx * dx + dy * dy;\n",
              "          if (dw * dw / theta2 < dn) {\n",
              "            if (dn < chargeDistance2) {\n",
              "              var k = quad.charge / dn;\n",
              "              node.px -= dx * k;\n",
              "              node.py -= dy * k;\n",
              "            }\n",
              "            return true;\n",
              "          }\n",
              "          if (quad.point && dn && dn < chargeDistance2) {\n",
              "            var k = quad.pointCharge / dn;\n",
              "            node.px -= dx * k;\n",
              "            node.py -= dy * k;\n",
              "          }\n",
              "        }\n",
              "        return !quad.charge;\n",
              "      };\n",
              "    }\n",
              "    force.tick = function() {\n",
              "      if ((alpha *= .99) < .005) {\n",
              "        timer = null;\n",
              "        event.end({\n",
              "          type: \"end\",\n",
              "          alpha: alpha = 0\n",
              "        });\n",
              "        return true;\n",
              "      }\n",
              "      var n = nodes.length, m = links.length, q, i, o, s, t, l, k, x, y;\n",
              "      for (i = 0; i < m; ++i) {\n",
              "        o = links[i];\n",
              "        s = o.source;\n",
              "        t = o.target;\n",
              "        x = t.x - s.x;\n",
              "        y = t.y - s.y;\n",
              "        if (l = x * x + y * y) {\n",
              "          l = alpha * strengths[i] * ((l = Math.sqrt(l)) - distances[i]) / l;\n",
              "          x *= l;\n",
              "          y *= l;\n",
              "          t.x -= x * (k = s.weight + t.weight ? s.weight / (s.weight + t.weight) : .5);\n",
              "          t.y -= y * k;\n",
              "          s.x += x * (k = 1 - k);\n",
              "          s.y += y * k;\n",
              "        }\n",
              "      }\n",
              "      if (k = alpha * gravity) {\n",
              "        x = size[0] / 2;\n",
              "        y = size[1] / 2;\n",
              "        i = -1;\n",
              "        if (k) while (++i < n) {\n",
              "          o = nodes[i];\n",
              "          o.x += (x - o.x) * k;\n",
              "          o.y += (y - o.y) * k;\n",
              "        }\n",
              "      }\n",
              "      if (charge) {\n",
              "        d3_layout_forceAccumulate(q = d3.geom.quadtree(nodes), alpha, charges);\n",
              "        i = -1;\n",
              "        while (++i < n) {\n",
              "          if (!(o = nodes[i]).fixed) {\n",
              "            q.visit(repulse(o));\n",
              "          }\n",
              "        }\n",
              "      }\n",
              "      i = -1;\n",
              "      while (++i < n) {\n",
              "        o = nodes[i];\n",
              "        if (o.fixed) {\n",
              "          o.x = o.px;\n",
              "          o.y = o.py;\n",
              "        } else {\n",
              "          o.x -= (o.px - (o.px = o.x)) * friction;\n",
              "          o.y -= (o.py - (o.py = o.y)) * friction;\n",
              "        }\n",
              "      }\n",
              "      event.tick({\n",
              "        type: \"tick\",\n",
              "        alpha: alpha\n",
              "      });\n",
              "    };\n",
              "    force.nodes = function(x) {\n",
              "      if (!arguments.length) return nodes;\n",
              "      nodes = x;\n",
              "      return force;\n",
              "    };\n",
              "    force.links = function(x) {\n",
              "      if (!arguments.length) return links;\n",
              "      links = x;\n",
              "      return force;\n",
              "    };\n",
              "    force.size = function(x) {\n",
              "      if (!arguments.length) return size;\n",
              "      size = x;\n",
              "      return force;\n",
              "    };\n",
              "    force.linkDistance = function(x) {\n",
              "      if (!arguments.length) return linkDistance;\n",
              "      linkDistance = typeof x === \"function\" ? x : +x;\n",
              "      return force;\n",
              "    };\n",
              "    force.distance = force.linkDistance;\n",
              "    force.linkStrength = function(x) {\n",
              "      if (!arguments.length) return linkStrength;\n",
              "      linkStrength = typeof x === \"function\" ? x : +x;\n",
              "      return force;\n",
              "    };\n",
              "    force.friction = function(x) {\n",
              "      if (!arguments.length) return friction;\n",
              "      friction = +x;\n",
              "      return force;\n",
              "    };\n",
              "    force.charge = function(x) {\n",
              "      if (!arguments.length) return charge;\n",
              "      charge = typeof x === \"function\" ? x : +x;\n",
              "      return force;\n",
              "    };\n",
              "    force.chargeDistance = function(x) {\n",
              "      if (!arguments.length) return Math.sqrt(chargeDistance2);\n",
              "      chargeDistance2 = x * x;\n",
              "      return force;\n",
              "    };\n",
              "    force.gravity = function(x) {\n",
              "      if (!arguments.length) return gravity;\n",
              "      gravity = +x;\n",
              "      return force;\n",
              "    };\n",
              "    force.theta = function(x) {\n",
              "      if (!arguments.length) return Math.sqrt(theta2);\n",
              "      theta2 = x * x;\n",
              "      return force;\n",
              "    };\n",
              "    force.alpha = function(x) {\n",
              "      if (!arguments.length) return alpha;\n",
              "      x = +x;\n",
              "      if (alpha) {\n",
              "        if (x > 0) {\n",
              "          alpha = x;\n",
              "        } else {\n",
              "          timer.c = null, timer.t = NaN, timer = null;\n",
              "          event.end({\n",
              "            type: \"end\",\n",
              "            alpha: alpha = 0\n",
              "          });\n",
              "        }\n",
              "      } else if (x > 0) {\n",
              "        event.start({\n",
              "          type: \"start\",\n",
              "          alpha: alpha = x\n",
              "        });\n",
              "        timer = d3_timer(force.tick);\n",
              "      }\n",
              "      return force;\n",
              "    };\n",
              "    force.start = function() {\n",
              "      var i, n = nodes.length, m = links.length, w = size[0], h = size[1], neighbors, o;\n",
              "      for (i = 0; i < n; ++i) {\n",
              "        (o = nodes[i]).index = i;\n",
              "        o.weight = 0;\n",
              "      }\n",
              "      for (i = 0; i < m; ++i) {\n",
              "        o = links[i];\n",
              "        if (typeof o.source == \"number\") o.source = nodes[o.source];\n",
              "        if (typeof o.target == \"number\") o.target = nodes[o.target];\n",
              "        ++o.source.weight;\n",
              "        ++o.target.weight;\n",
              "      }\n",
              "      for (i = 0; i < n; ++i) {\n",
              "        o = nodes[i];\n",
              "        if (isNaN(o.x)) o.x = position(\"x\", w);\n",
              "        if (isNaN(o.y)) o.y = position(\"y\", h);\n",
              "        if (isNaN(o.px)) o.px = o.x;\n",
              "        if (isNaN(o.py)) o.py = o.y;\n",
              "      }\n",
              "      distances = [];\n",
              "      if (typeof linkDistance === \"function\") for (i = 0; i < m; ++i) distances[i] = +linkDistance.call(this, links[i], i); else for (i = 0; i < m; ++i) distances[i] = linkDistance;\n",
              "      strengths = [];\n",
              "      if (typeof linkStrength === \"function\") for (i = 0; i < m; ++i) strengths[i] = +linkStrength.call(this, links[i], i); else for (i = 0; i < m; ++i) strengths[i] = linkStrength;\n",
              "      charges = [];\n",
              "      if (typeof charge === \"function\") for (i = 0; i < n; ++i) charges[i] = +charge.call(this, nodes[i], i); else for (i = 0; i < n; ++i) charges[i] = charge;\n",
              "      function position(dimension, size) {\n",
              "        if (!neighbors) {\n",
              "          neighbors = new Array(n);\n",
              "          for (j = 0; j < n; ++j) {\n",
              "            neighbors[j] = [];\n",
              "          }\n",
              "          for (j = 0; j < m; ++j) {\n",
              "            var o = links[j];\n",
              "            neighbors[o.source.index].push(o.target);\n",
              "            neighbors[o.target.index].push(o.source);\n",
              "          }\n",
              "        }\n",
              "        var candidates = neighbors[i], j = -1, l = candidates.length, x;\n",
              "        while (++j < l) if (!isNaN(x = candidates[j][dimension])) return x;\n",
              "        return Math.random() * size;\n",
              "      }\n",
              "      return force.resume();\n",
              "    };\n",
              "    force.resume = function() {\n",
              "      return force.alpha(.1);\n",
              "    };\n",
              "    force.stop = function() {\n",
              "      return force.alpha(0);\n",
              "    };\n",
              "    force.drag = function() {\n",
              "      if (!drag) drag = d3.behavior.drag().origin(d3_identity).on(\"dragstart.force\", d3_layout_forceDragstart).on(\"drag.force\", dragmove).on(\"dragend.force\", d3_layout_forceDragend);\n",
              "      if (!arguments.length) return drag;\n",
              "      this.on(\"mouseover.force\", d3_layout_forceMouseover).on(\"mouseout.force\", d3_layout_forceMouseout).call(drag);\n",
              "    };\n",
              "    function dragmove(d) {\n",
              "      d.px = d3.event.x, d.py = d3.event.y;\n",
              "      force.resume();\n",
              "    }\n",
              "    return d3.rebind(force, event, \"on\");\n",
              "  };\n",
              "  function d3_layout_forceDragstart(d) {\n",
              "    d.fixed |= 2;\n",
              "  }\n",
              "  function d3_layout_forceDragend(d) {\n",
              "    d.fixed &= ~6;\n",
              "  }\n",
              "  function d3_layout_forceMouseover(d) {\n",
              "    d.fixed |= 4;\n",
              "    d.px = d.x, d.py = d.y;\n",
              "  }\n",
              "  function d3_layout_forceMouseout(d) {\n",
              "    d.fixed &= ~4;\n",
              "  }\n",
              "  function d3_layout_forceAccumulate(quad, alpha, charges) {\n",
              "    var cx = 0, cy = 0;\n",
              "    quad.charge = 0;\n",
              "    if (!quad.leaf) {\n",
              "      var nodes = quad.nodes, n = nodes.length, i = -1, c;\n",
              "      while (++i < n) {\n",
              "        c = nodes[i];\n",
              "        if (c == null) continue;\n",
              "        d3_layout_forceAccumulate(c, alpha, charges);\n",
              "        quad.charge += c.charge;\n",
              "        cx += c.charge * c.cx;\n",
              "        cy += c.charge * c.cy;\n",
              "      }\n",
              "    }\n",
              "    if (quad.point) {\n",
              "      if (!quad.leaf) {\n",
              "        quad.point.x += Math.random() - .5;\n",
              "        quad.point.y += Math.random() - .5;\n",
              "      }\n",
              "      var k = alpha * charges[quad.point.index];\n",
              "      quad.charge += quad.pointCharge = k;\n",
              "      cx += k * quad.point.x;\n",
              "      cy += k * quad.point.y;\n",
              "    }\n",
              "    quad.cx = cx / quad.charge;\n",
              "    quad.cy = cy / quad.charge;\n",
              "  }\n",
              "  var d3_layout_forceLinkDistance = 20, d3_layout_forceLinkStrength = 1, d3_layout_forceChargeDistance2 = Infinity;\n",
              "  d3.layout.hierarchy = function() {\n",
              "    var sort = d3_layout_hierarchySort, children = d3_layout_hierarchyChildren, value = d3_layout_hierarchyValue;\n",
              "    function hierarchy(root) {\n",
              "      var stack = [ root ], nodes = [], node;\n",
              "      root.depth = 0;\n",
              "      while ((node = stack.pop()) != null) {\n",
              "        nodes.push(node);\n",
              "        if ((childs = children.call(hierarchy, node, node.depth)) && (n = childs.length)) {\n",
              "          var n, childs, child;\n",
              "          while (--n >= 0) {\n",
              "            stack.push(child = childs[n]);\n",
              "            child.parent = node;\n",
              "            child.depth = node.depth + 1;\n",
              "          }\n",
              "          if (value) node.value = 0;\n",
              "          node.children = childs;\n",
              "        } else {\n",
              "          if (value) node.value = +value.call(hierarchy, node, node.depth) || 0;\n",
              "          delete node.children;\n",
              "        }\n",
              "      }\n",
              "      d3_layout_hierarchyVisitAfter(root, function(node) {\n",
              "        var childs, parent;\n",
              "        if (sort && (childs = node.children)) childs.sort(sort);\n",
              "        if (value && (parent = node.parent)) parent.value += node.value;\n",
              "      });\n",
              "      return nodes;\n",
              "    }\n",
              "    hierarchy.sort = function(x) {\n",
              "      if (!arguments.length) return sort;\n",
              "      sort = x;\n",
              "      return hierarchy;\n",
              "    };\n",
              "    hierarchy.children = function(x) {\n",
              "      if (!arguments.length) return children;\n",
              "      children = x;\n",
              "      return hierarchy;\n",
              "    };\n",
              "    hierarchy.value = function(x) {\n",
              "      if (!arguments.length) return value;\n",
              "      value = x;\n",
              "      return hierarchy;\n",
              "    };\n",
              "    hierarchy.revalue = function(root) {\n",
              "      if (value) {\n",
              "        d3_layout_hierarchyVisitBefore(root, function(node) {\n",
              "          if (node.children) node.value = 0;\n",
              "        });\n",
              "        d3_layout_hierarchyVisitAfter(root, function(node) {\n",
              "          var parent;\n",
              "          if (!node.children) node.value = +value.call(hierarchy, node, node.depth) || 0;\n",
              "          if (parent = node.parent) parent.value += node.value;\n",
              "        });\n",
              "      }\n",
              "      return root;\n",
              "    };\n",
              "    return hierarchy;\n",
              "  };\n",
              "  function d3_layout_hierarchyRebind(object, hierarchy) {\n",
              "    d3.rebind(object, hierarchy, \"sort\", \"children\", \"value\");\n",
              "    object.nodes = object;\n",
              "    object.links = d3_layout_hierarchyLinks;\n",
              "    return object;\n",
              "  }\n",
              "  function d3_layout_hierarchyVisitBefore(node, callback) {\n",
              "    var nodes = [ node ];\n",
              "    while ((node = nodes.pop()) != null) {\n",
              "      callback(node);\n",
              "      if ((children = node.children) && (n = children.length)) {\n",
              "        var n, children;\n",
              "        while (--n >= 0) nodes.push(children[n]);\n",
              "      }\n",
              "    }\n",
              "  }\n",
              "  function d3_layout_hierarchyVisitAfter(node, callback) {\n",
              "    var nodes = [ node ], nodes2 = [];\n",
              "    while ((node = nodes.pop()) != null) {\n",
              "      nodes2.push(node);\n",
              "      if ((children = node.children) && (n = children.length)) {\n",
              "        var i = -1, n, children;\n",
              "        while (++i < n) nodes.push(children[i]);\n",
              "      }\n",
              "    }\n",
              "    while ((node = nodes2.pop()) != null) {\n",
              "      callback(node);\n",
              "    }\n",
              "  }\n",
              "  function d3_layout_hierarchyChildren(d) {\n",
              "    return d.children;\n",
              "  }\n",
              "  function d3_layout_hierarchyValue(d) {\n",
              "    return d.value;\n",
              "  }\n",
              "  function d3_layout_hierarchySort(a, b) {\n",
              "    return b.value - a.value;\n",
              "  }\n",
              "  function d3_layout_hierarchyLinks(nodes) {\n",
              "    return d3.merge(nodes.map(function(parent) {\n",
              "      return (parent.children || []).map(function(child) {\n",
              "        return {\n",
              "          source: parent,\n",
              "          target: child\n",
              "        };\n",
              "      });\n",
              "    }));\n",
              "  }\n",
              "  d3.layout.partition = function() {\n",
              "    var hierarchy = d3.layout.hierarchy(), size = [ 1, 1 ];\n",
              "    function position(node, x, dx, dy) {\n",
              "      var children = node.children;\n",
              "      node.x = x;\n",
              "      node.y = node.depth * dy;\n",
              "      node.dx = dx;\n",
              "      node.dy = dy;\n",
              "      if (children && (n = children.length)) {\n",
              "        var i = -1, n, c, d;\n",
              "        dx = node.value ? dx / node.value : 0;\n",
              "        while (++i < n) {\n",
              "          position(c = children[i], x, d = c.value * dx, dy);\n",
              "          x += d;\n",
              "        }\n",
              "      }\n",
              "    }\n",
              "    function depth(node) {\n",
              "      var children = node.children, d = 0;\n",
              "      if (children && (n = children.length)) {\n",
              "        var i = -1, n;\n",
              "        while (++i < n) d = Math.max(d, depth(children[i]));\n",
              "      }\n",
              "      return 1 + d;\n",
              "    }\n",
              "    function partition(d, i) {\n",
              "      var nodes = hierarchy.call(this, d, i);\n",
              "      position(nodes[0], 0, size[0], size[1] / depth(nodes[0]));\n",
              "      return nodes;\n",
              "    }\n",
              "    partition.size = function(x) {\n",
              "      if (!arguments.length) return size;\n",
              "      size = x;\n",
              "      return partition;\n",
              "    };\n",
              "    return d3_layout_hierarchyRebind(partition, hierarchy);\n",
              "  };\n",
              "  d3.layout.pie = function() {\n",
              "    var value = Number, sort = d3_layout_pieSortByValue, startAngle = 0, endAngle = τ, padAngle = 0;\n",
              "    function pie(data) {\n",
              "      var n = data.length, values = data.map(function(d, i) {\n",
              "        return +value.call(pie, d, i);\n",
              "      }), a = +(typeof startAngle === \"function\" ? startAngle.apply(this, arguments) : startAngle), da = (typeof endAngle === \"function\" ? endAngle.apply(this, arguments) : endAngle) - a, p = Math.min(Math.abs(da) / n, +(typeof padAngle === \"function\" ? padAngle.apply(this, arguments) : padAngle)), pa = p * (da < 0 ? -1 : 1), sum = d3.sum(values), k = sum ? (da - n * pa) / sum : 0, index = d3.range(n), arcs = [], v;\n",
              "      if (sort != null) index.sort(sort === d3_layout_pieSortByValue ? function(i, j) {\n",
              "        return values[j] - values[i];\n",
              "      } : function(i, j) {\n",
              "        return sort(data[i], data[j]);\n",
              "      });\n",
              "      index.forEach(function(i) {\n",
              "        arcs[i] = {\n",
              "          data: data[i],\n",
              "          value: v = values[i],\n",
              "          startAngle: a,\n",
              "          endAngle: a += v * k + pa,\n",
              "          padAngle: p\n",
              "        };\n",
              "      });\n",
              "      return arcs;\n",
              "    }\n",
              "    pie.value = function(_) {\n",
              "      if (!arguments.length) return value;\n",
              "      value = _;\n",
              "      return pie;\n",
              "    };\n",
              "    pie.sort = function(_) {\n",
              "      if (!arguments.length) return sort;\n",
              "      sort = _;\n",
              "      return pie;\n",
              "    };\n",
              "    pie.startAngle = function(_) {\n",
              "      if (!arguments.length) return startAngle;\n",
              "      startAngle = _;\n",
              "      return pie;\n",
              "    };\n",
              "    pie.endAngle = function(_) {\n",
              "      if (!arguments.length) return endAngle;\n",
              "      endAngle = _;\n",
              "      return pie;\n",
              "    };\n",
              "    pie.padAngle = function(_) {\n",
              "      if (!arguments.length) return padAngle;\n",
              "      padAngle = _;\n",
              "      return pie;\n",
              "    };\n",
              "    return pie;\n",
              "  };\n",
              "  var d3_layout_pieSortByValue = {};\n",
              "  d3.layout.stack = function() {\n",
              "    var values = d3_identity, order = d3_layout_stackOrderDefault, offset = d3_layout_stackOffsetZero, out = d3_layout_stackOut, x = d3_layout_stackX, y = d3_layout_stackY;\n",
              "    function stack(data, index) {\n",
              "      if (!(n = data.length)) return data;\n",
              "      var series = data.map(function(d, i) {\n",
              "        return values.call(stack, d, i);\n",
              "      });\n",
              "      var points = series.map(function(d) {\n",
              "        return d.map(function(v, i) {\n",
              "          return [ x.call(stack, v, i), y.call(stack, v, i) ];\n",
              "        });\n",
              "      });\n",
              "      var orders = order.call(stack, points, index);\n",
              "      series = d3.permute(series, orders);\n",
              "      points = d3.permute(points, orders);\n",
              "      var offsets = offset.call(stack, points, index);\n",
              "      var m = series[0].length, n, i, j, o;\n",
              "      for (j = 0; j < m; ++j) {\n",
              "        out.call(stack, series[0][j], o = offsets[j], points[0][j][1]);\n",
              "        for (i = 1; i < n; ++i) {\n",
              "          out.call(stack, series[i][j], o += points[i - 1][j][1], points[i][j][1]);\n",
              "        }\n",
              "      }\n",
              "      return data;\n",
              "    }\n",
              "    stack.values = function(x) {\n",
              "      if (!arguments.length) return values;\n",
              "      values = x;\n",
              "      return stack;\n",
              "    };\n",
              "    stack.order = function(x) {\n",
              "      if (!arguments.length) return order;\n",
              "      order = typeof x === \"function\" ? x : d3_layout_stackOrders.get(x) || d3_layout_stackOrderDefault;\n",
              "      return stack;\n",
              "    };\n",
              "    stack.offset = function(x) {\n",
              "      if (!arguments.length) return offset;\n",
              "      offset = typeof x === \"function\" ? x : d3_layout_stackOffsets.get(x) || d3_layout_stackOffsetZero;\n",
              "      return stack;\n",
              "    };\n",
              "    stack.x = function(z) {\n",
              "      if (!arguments.length) return x;\n",
              "      x = z;\n",
              "      return stack;\n",
              "    };\n",
              "    stack.y = function(z) {\n",
              "      if (!arguments.length) return y;\n",
              "      y = z;\n",
              "      return stack;\n",
              "    };\n",
              "    stack.out = function(z) {\n",
              "      if (!arguments.length) return out;\n",
              "      out = z;\n",
              "      return stack;\n",
              "    };\n",
              "    return stack;\n",
              "  };\n",
              "  function d3_layout_stackX(d) {\n",
              "    return d.x;\n",
              "  }\n",
              "  function d3_layout_stackY(d) {\n",
              "    return d.y;\n",
              "  }\n",
              "  function d3_layout_stackOut(d, y0, y) {\n",
              "    d.y0 = y0;\n",
              "    d.y = y;\n",
              "  }\n",
              "  var d3_layout_stackOrders = d3.map({\n",
              "    \"inside-out\": function(data) {\n",
              "      var n = data.length, i, j, max = data.map(d3_layout_stackMaxIndex), sums = data.map(d3_layout_stackReduceSum), index = d3.range(n).sort(function(a, b) {\n",
              "        return max[a] - max[b];\n",
              "      }), top = 0, bottom = 0, tops = [], bottoms = [];\n",
              "      for (i = 0; i < n; ++i) {\n",
              "        j = index[i];\n",
              "        if (top < bottom) {\n",
              "          top += sums[j];\n",
              "          tops.push(j);\n",
              "        } else {\n",
              "          bottom += sums[j];\n",
              "          bottoms.push(j);\n",
              "        }\n",
              "      }\n",
              "      return bottoms.reverse().concat(tops);\n",
              "    },\n",
              "    reverse: function(data) {\n",
              "      return d3.range(data.length).reverse();\n",
              "    },\n",
              "    \"default\": d3_layout_stackOrderDefault\n",
              "  });\n",
              "  var d3_layout_stackOffsets = d3.map({\n",
              "    silhouette: function(data) {\n",
              "      var n = data.length, m = data[0].length, sums = [], max = 0, i, j, o, y0 = [];\n",
              "      for (j = 0; j < m; ++j) {\n",
              "        for (i = 0, o = 0; i < n; i++) o += data[i][j][1];\n",
              "        if (o > max) max = o;\n",
              "        sums.push(o);\n",
              "      }\n",
              "      for (j = 0; j < m; ++j) {\n",
              "        y0[j] = (max - sums[j]) / 2;\n",
              "      }\n",
              "      return y0;\n",
              "    },\n",
              "    wiggle: function(data) {\n",
              "      var n = data.length, x = data[0], m = x.length, i, j, k, s1, s2, s3, dx, o, o0, y0 = [];\n",
              "      y0[0] = o = o0 = 0;\n",
              "      for (j = 1; j < m; ++j) {\n",
              "        for (i = 0, s1 = 0; i < n; ++i) s1 += data[i][j][1];\n",
              "        for (i = 0, s2 = 0, dx = x[j][0] - x[j - 1][0]; i < n; ++i) {\n",
              "          for (k = 0, s3 = (data[i][j][1] - data[i][j - 1][1]) / (2 * dx); k < i; ++k) {\n",
              "            s3 += (data[k][j][1] - data[k][j - 1][1]) / dx;\n",
              "          }\n",
              "          s2 += s3 * data[i][j][1];\n",
              "        }\n",
              "        y0[j] = o -= s1 ? s2 / s1 * dx : 0;\n",
              "        if (o < o0) o0 = o;\n",
              "      }\n",
              "      for (j = 0; j < m; ++j) y0[j] -= o0;\n",
              "      return y0;\n",
              "    },\n",
              "    expand: function(data) {\n",
              "      var n = data.length, m = data[0].length, k = 1 / n, i, j, o, y0 = [];\n",
              "      for (j = 0; j < m; ++j) {\n",
              "        for (i = 0, o = 0; i < n; i++) o += data[i][j][1];\n",
              "        if (o) for (i = 0; i < n; i++) data[i][j][1] /= o; else for (i = 0; i < n; i++) data[i][j][1] = k;\n",
              "      }\n",
              "      for (j = 0; j < m; ++j) y0[j] = 0;\n",
              "      return y0;\n",
              "    },\n",
              "    zero: d3_layout_stackOffsetZero\n",
              "  });\n",
              "  function d3_layout_stackOrderDefault(data) {\n",
              "    return d3.range(data.length);\n",
              "  }\n",
              "  function d3_layout_stackOffsetZero(data) {\n",
              "    var j = -1, m = data[0].length, y0 = [];\n",
              "    while (++j < m) y0[j] = 0;\n",
              "    return y0;\n",
              "  }\n",
              "  function d3_layout_stackMaxIndex(array) {\n",
              "    var i = 1, j = 0, v = array[0][1], k, n = array.length;\n",
              "    for (;i < n; ++i) {\n",
              "      if ((k = array[i][1]) > v) {\n",
              "        j = i;\n",
              "        v = k;\n",
              "      }\n",
              "    }\n",
              "    return j;\n",
              "  }\n",
              "  function d3_layout_stackReduceSum(d) {\n",
              "    return d.reduce(d3_layout_stackSum, 0);\n",
              "  }\n",
              "  function d3_layout_stackSum(p, d) {\n",
              "    return p + d[1];\n",
              "  }\n",
              "  d3.layout.histogram = function() {\n",
              "    var frequency = true, valuer = Number, ranger = d3_layout_histogramRange, binner = d3_layout_histogramBinSturges;\n",
              "    function histogram(data, i) {\n",
              "      var bins = [], values = data.map(valuer, this), range = ranger.call(this, values, i), thresholds = binner.call(this, range, values, i), bin, i = -1, n = values.length, m = thresholds.length - 1, k = frequency ? 1 : 1 / n, x;\n",
              "      while (++i < m) {\n",
              "        bin = bins[i] = [];\n",
              "        bin.dx = thresholds[i + 1] - (bin.x = thresholds[i]);\n",
              "        bin.y = 0;\n",
              "      }\n",
              "      if (m > 0) {\n",
              "        i = -1;\n",
              "        while (++i < n) {\n",
              "          x = values[i];\n",
              "          if (x >= range[0] && x <= range[1]) {\n",
              "            bin = bins[d3.bisect(thresholds, x, 1, m) - 1];\n",
              "            bin.y += k;\n",
              "            bin.push(data[i]);\n",
              "          }\n",
              "        }\n",
              "      }\n",
              "      return bins;\n",
              "    }\n",
              "    histogram.value = function(x) {\n",
              "      if (!arguments.length) return valuer;\n",
              "      valuer = x;\n",
              "      return histogram;\n",
              "    };\n",
              "    histogram.range = function(x) {\n",
              "      if (!arguments.length) return ranger;\n",
              "      ranger = d3_functor(x);\n",
              "      return histogram;\n",
              "    };\n",
              "    histogram.bins = function(x) {\n",
              "      if (!arguments.length) return binner;\n",
              "      binner = typeof x === \"number\" ? function(range) {\n",
              "        return d3_layout_histogramBinFixed(range, x);\n",
              "      } : d3_functor(x);\n",
              "      return histogram;\n",
              "    };\n",
              "    histogram.frequency = function(x) {\n",
              "      if (!arguments.length) return frequency;\n",
              "      frequency = !!x;\n",
              "      return histogram;\n",
              "    };\n",
              "    return histogram;\n",
              "  };\n",
              "  function d3_layout_histogramBinSturges(range, values) {\n",
              "    return d3_layout_histogramBinFixed(range, Math.ceil(Math.log(values.length) / Math.LN2 + 1));\n",
              "  }\n",
              "  function d3_layout_histogramBinFixed(range, n) {\n",
              "    var x = -1, b = +range[0], m = (range[1] - b) / n, f = [];\n",
              "    while (++x <= n) f[x] = m * x + b;\n",
              "    return f;\n",
              "  }\n",
              "  function d3_layout_histogramRange(values) {\n",
              "    return [ d3.min(values), d3.max(values) ];\n",
              "  }\n",
              "  d3.layout.pack = function() {\n",
              "    var hierarchy = d3.layout.hierarchy().sort(d3_layout_packSort), padding = 0, size = [ 1, 1 ], radius;\n",
              "    function pack(d, i) {\n",
              "      var nodes = hierarchy.call(this, d, i), root = nodes[0], w = size[0], h = size[1], r = radius == null ? Math.sqrt : typeof radius === \"function\" ? radius : function() {\n",
              "        return radius;\n",
              "      };\n",
              "      root.x = root.y = 0;\n",
              "      d3_layout_hierarchyVisitAfter(root, function(d) {\n",
              "        d.r = +r(d.value);\n",
              "      });\n",
              "      d3_layout_hierarchyVisitAfter(root, d3_layout_packSiblings);\n",
              "      if (padding) {\n",
              "        var dr = padding * (radius ? 1 : Math.max(2 * root.r / w, 2 * root.r / h)) / 2;\n",
              "        d3_layout_hierarchyVisitAfter(root, function(d) {\n",
              "          d.r += dr;\n",
              "        });\n",
              "        d3_layout_hierarchyVisitAfter(root, d3_layout_packSiblings);\n",
              "        d3_layout_hierarchyVisitAfter(root, function(d) {\n",
              "          d.r -= dr;\n",
              "        });\n",
              "      }\n",
              "      d3_layout_packTransform(root, w / 2, h / 2, radius ? 1 : 1 / Math.max(2 * root.r / w, 2 * root.r / h));\n",
              "      return nodes;\n",
              "    }\n",
              "    pack.size = function(_) {\n",
              "      if (!arguments.length) return size;\n",
              "      size = _;\n",
              "      return pack;\n",
              "    };\n",
              "    pack.radius = function(_) {\n",
              "      if (!arguments.length) return radius;\n",
              "      radius = _ == null || typeof _ === \"function\" ? _ : +_;\n",
              "      return pack;\n",
              "    };\n",
              "    pack.padding = function(_) {\n",
              "      if (!arguments.length) return padding;\n",
              "      padding = +_;\n",
              "      return pack;\n",
              "    };\n",
              "    return d3_layout_hierarchyRebind(pack, hierarchy);\n",
              "  };\n",
              "  function d3_layout_packSort(a, b) {\n",
              "    return a.value - b.value;\n",
              "  }\n",
              "  function d3_layout_packInsert(a, b) {\n",
              "    var c = a._pack_next;\n",
              "    a._pack_next = b;\n",
              "    b._pack_prev = a;\n",
              "    b._pack_next = c;\n",
              "    c._pack_prev = b;\n",
              "  }\n",
              "  function d3_layout_packSplice(a, b) {\n",
              "    a._pack_next = b;\n",
              "    b._pack_prev = a;\n",
              "  }\n",
              "  function d3_layout_packIntersects(a, b) {\n",
              "    var dx = b.x - a.x, dy = b.y - a.y, dr = a.r + b.r;\n",
              "    return .999 * dr * dr > dx * dx + dy * dy;\n",
              "  }\n",
              "  function d3_layout_packSiblings(node) {\n",
              "    if (!(nodes = node.children) || !(n = nodes.length)) return;\n",
              "    var nodes, xMin = Infinity, xMax = -Infinity, yMin = Infinity, yMax = -Infinity, a, b, c, i, j, k, n;\n",
              "    function bound(node) {\n",
              "      xMin = Math.min(node.x - node.r, xMin);\n",
              "      xMax = Math.max(node.x + node.r, xMax);\n",
              "      yMin = Math.min(node.y - node.r, yMin);\n",
              "      yMax = Math.max(node.y + node.r, yMax);\n",
              "    }\n",
              "    nodes.forEach(d3_layout_packLink);\n",
              "    a = nodes[0];\n",
              "    a.x = -a.r;\n",
              "    a.y = 0;\n",
              "    bound(a);\n",
              "    if (n > 1) {\n",
              "      b = nodes[1];\n",
              "      b.x = b.r;\n",
              "      b.y = 0;\n",
              "      bound(b);\n",
              "      if (n > 2) {\n",
              "        c = nodes[2];\n",
              "        d3_layout_packPlace(a, b, c);\n",
              "        bound(c);\n",
              "        d3_layout_packInsert(a, c);\n",
              "        a._pack_prev = c;\n",
              "        d3_layout_packInsert(c, b);\n",
              "        b = a._pack_next;\n",
              "        for (i = 3; i < n; i++) {\n",
              "          d3_layout_packPlace(a, b, c = nodes[i]);\n",
              "          var isect = 0, s1 = 1, s2 = 1;\n",
              "          for (j = b._pack_next; j !== b; j = j._pack_next, s1++) {\n",
              "            if (d3_layout_packIntersects(j, c)) {\n",
              "              isect = 1;\n",
              "              break;\n",
              "            }\n",
              "          }\n",
              "          if (isect == 1) {\n",
              "            for (k = a._pack_prev; k !== j._pack_prev; k = k._pack_prev, s2++) {\n",
              "              if (d3_layout_packIntersects(k, c)) {\n",
              "                break;\n",
              "              }\n",
              "            }\n",
              "          }\n",
              "          if (isect) {\n",
              "            if (s1 < s2 || s1 == s2 && b.r < a.r) d3_layout_packSplice(a, b = j); else d3_layout_packSplice(a = k, b);\n",
              "            i--;\n",
              "          } else {\n",
              "            d3_layout_packInsert(a, c);\n",
              "            b = c;\n",
              "            bound(c);\n",
              "          }\n",
              "        }\n",
              "      }\n",
              "    }\n",
              "    var cx = (xMin + xMax) / 2, cy = (yMin + yMax) / 2, cr = 0;\n",
              "    for (i = 0; i < n; i++) {\n",
              "      c = nodes[i];\n",
              "      c.x -= cx;\n",
              "      c.y -= cy;\n",
              "      cr = Math.max(cr, c.r + Math.sqrt(c.x * c.x + c.y * c.y));\n",
              "    }\n",
              "    node.r = cr;\n",
              "    nodes.forEach(d3_layout_packUnlink);\n",
              "  }\n",
              "  function d3_layout_packLink(node) {\n",
              "    node._pack_next = node._pack_prev = node;\n",
              "  }\n",
              "  function d3_layout_packUnlink(node) {\n",
              "    delete node._pack_next;\n",
              "    delete node._pack_prev;\n",
              "  }\n",
              "  function d3_layout_packTransform(node, x, y, k) {\n",
              "    var children = node.children;\n",
              "    node.x = x += k * node.x;\n",
              "    node.y = y += k * node.y;\n",
              "    node.r *= k;\n",
              "    if (children) {\n",
              "      var i = -1, n = children.length;\n",
              "      while (++i < n) d3_layout_packTransform(children[i], x, y, k);\n",
              "    }\n",
              "  }\n",
              "  function d3_layout_packPlace(a, b, c) {\n",
              "    var db = a.r + c.r, dx = b.x - a.x, dy = b.y - a.y;\n",
              "    if (db && (dx || dy)) {\n",
              "      var da = b.r + c.r, dc = dx * dx + dy * dy;\n",
              "      da *= da;\n",
              "      db *= db;\n",
              "      var x = .5 + (db - da) / (2 * dc), y = Math.sqrt(Math.max(0, 2 * da * (db + dc) - (db -= dc) * db - da * da)) / (2 * dc);\n",
              "      c.x = a.x + x * dx + y * dy;\n",
              "      c.y = a.y + x * dy - y * dx;\n",
              "    } else {\n",
              "      c.x = a.x + db;\n",
              "      c.y = a.y;\n",
              "    }\n",
              "  }\n",
              "  d3.layout.tree = function() {\n",
              "    var hierarchy = d3.layout.hierarchy().sort(null).value(null), separation = d3_layout_treeSeparation, size = [ 1, 1 ], nodeSize = null;\n",
              "    function tree(d, i) {\n",
              "      var nodes = hierarchy.call(this, d, i), root0 = nodes[0], root1 = wrapTree(root0);\n",
              "      d3_layout_hierarchyVisitAfter(root1, firstWalk), root1.parent.m = -root1.z;\n",
              "      d3_layout_hierarchyVisitBefore(root1, secondWalk);\n",
              "      if (nodeSize) d3_layout_hierarchyVisitBefore(root0, sizeNode); else {\n",
              "        var left = root0, right = root0, bottom = root0;\n",
              "        d3_layout_hierarchyVisitBefore(root0, function(node) {\n",
              "          if (node.x < left.x) left = node;\n",
              "          if (node.x > right.x) right = node;\n",
              "          if (node.depth > bottom.depth) bottom = node;\n",
              "        });\n",
              "        var tx = separation(left, right) / 2 - left.x, kx = size[0] / (right.x + separation(right, left) / 2 + tx), ky = size[1] / (bottom.depth || 1);\n",
              "        d3_layout_hierarchyVisitBefore(root0, function(node) {\n",
              "          node.x = (node.x + tx) * kx;\n",
              "          node.y = node.depth * ky;\n",
              "        });\n",
              "      }\n",
              "      return nodes;\n",
              "    }\n",
              "    function wrapTree(root0) {\n",
              "      var root1 = {\n",
              "        A: null,\n",
              "        children: [ root0 ]\n",
              "      }, queue = [ root1 ], node1;\n",
              "      while ((node1 = queue.pop()) != null) {\n",
              "        for (var children = node1.children, child, i = 0, n = children.length; i < n; ++i) {\n",
              "          queue.push((children[i] = child = {\n",
              "            _: children[i],\n",
              "            parent: node1,\n",
              "            children: (child = children[i].children) && child.slice() || [],\n",
              "            A: null,\n",
              "            a: null,\n",
              "            z: 0,\n",
              "            m: 0,\n",
              "            c: 0,\n",
              "            s: 0,\n",
              "            t: null,\n",
              "            i: i\n",
              "          }).a = child);\n",
              "        }\n",
              "      }\n",
              "      return root1.children[0];\n",
              "    }\n",
              "    function firstWalk(v) {\n",
              "      var children = v.children, siblings = v.parent.children, w = v.i ? siblings[v.i - 1] : null;\n",
              "      if (children.length) {\n",
              "        d3_layout_treeShift(v);\n",
              "        var midpoint = (children[0].z + children[children.length - 1].z) / 2;\n",
              "        if (w) {\n",
              "          v.z = w.z + separation(v._, w._);\n",
              "          v.m = v.z - midpoint;\n",
              "        } else {\n",
              "          v.z = midpoint;\n",
              "        }\n",
              "      } else if (w) {\n",
              "        v.z = w.z + separation(v._, w._);\n",
              "      }\n",
              "      v.parent.A = apportion(v, w, v.parent.A || siblings[0]);\n",
              "    }\n",
              "    function secondWalk(v) {\n",
              "      v._.x = v.z + v.parent.m;\n",
              "      v.m += v.parent.m;\n",
              "    }\n",
              "    function apportion(v, w, ancestor) {\n",
              "      if (w) {\n",
              "        var vip = v, vop = v, vim = w, vom = vip.parent.children[0], sip = vip.m, sop = vop.m, sim = vim.m, som = vom.m, shift;\n",
              "        while (vim = d3_layout_treeRight(vim), vip = d3_layout_treeLeft(vip), vim && vip) {\n",
              "          vom = d3_layout_treeLeft(vom);\n",
              "          vop = d3_layout_treeRight(vop);\n",
              "          vop.a = v;\n",
              "          shift = vim.z + sim - vip.z - sip + separation(vim._, vip._);\n",
              "          if (shift > 0) {\n",
              "            d3_layout_treeMove(d3_layout_treeAncestor(vim, v, ancestor), v, shift);\n",
              "            sip += shift;\n",
              "            sop += shift;\n",
              "          }\n",
              "          sim += vim.m;\n",
              "          sip += vip.m;\n",
              "          som += vom.m;\n",
              "          sop += vop.m;\n",
              "        }\n",
              "        if (vim && !d3_layout_treeRight(vop)) {\n",
              "          vop.t = vim;\n",
              "          vop.m += sim - sop;\n",
              "        }\n",
              "        if (vip && !d3_layout_treeLeft(vom)) {\n",
              "          vom.t = vip;\n",
              "          vom.m += sip - som;\n",
              "          ancestor = v;\n",
              "        }\n",
              "      }\n",
              "      return ancestor;\n",
              "    }\n",
              "    function sizeNode(node) {\n",
              "      node.x *= size[0];\n",
              "      node.y = node.depth * size[1];\n",
              "    }\n",
              "    tree.separation = function(x) {\n",
              "      if (!arguments.length) return separation;\n",
              "      separation = x;\n",
              "      return tree;\n",
              "    };\n",
              "    tree.size = function(x) {\n",
              "      if (!arguments.length) return nodeSize ? null : size;\n",
              "      nodeSize = (size = x) == null ? sizeNode : null;\n",
              "      return tree;\n",
              "    };\n",
              "    tree.nodeSize = function(x) {\n",
              "      if (!arguments.length) return nodeSize ? size : null;\n",
              "      nodeSize = (size = x) == null ? null : sizeNode;\n",
              "      return tree;\n",
              "    };\n",
              "    return d3_layout_hierarchyRebind(tree, hierarchy);\n",
              "  };\n",
              "  function d3_layout_treeSeparation(a, b) {\n",
              "    return a.parent == b.parent ? 1 : 2;\n",
              "  }\n",
              "  function d3_layout_treeLeft(v) {\n",
              "    var children = v.children;\n",
              "    return children.length ? children[0] : v.t;\n",
              "  }\n",
              "  function d3_layout_treeRight(v) {\n",
              "    var children = v.children, n;\n",
              "    return (n = children.length) ? children[n - 1] : v.t;\n",
              "  }\n",
              "  function d3_layout_treeMove(wm, wp, shift) {\n",
              "    var change = shift / (wp.i - wm.i);\n",
              "    wp.c -= change;\n",
              "    wp.s += shift;\n",
              "    wm.c += change;\n",
              "    wp.z += shift;\n",
              "    wp.m += shift;\n",
              "  }\n",
              "  function d3_layout_treeShift(v) {\n",
              "    var shift = 0, change = 0, children = v.children, i = children.length, w;\n",
              "    while (--i >= 0) {\n",
              "      w = children[i];\n",
              "      w.z += shift;\n",
              "      w.m += shift;\n",
              "      shift += w.s + (change += w.c);\n",
              "    }\n",
              "  }\n",
              "  function d3_layout_treeAncestor(vim, v, ancestor) {\n",
              "    return vim.a.parent === v.parent ? vim.a : ancestor;\n",
              "  }\n",
              "  d3.layout.cluster = function() {\n",
              "    var hierarchy = d3.layout.hierarchy().sort(null).value(null), separation = d3_layout_treeSeparation, size = [ 1, 1 ], nodeSize = false;\n",
              "    function cluster(d, i) {\n",
              "      var nodes = hierarchy.call(this, d, i), root = nodes[0], previousNode, x = 0;\n",
              "      d3_layout_hierarchyVisitAfter(root, function(node) {\n",
              "        var children = node.children;\n",
              "        if (children && children.length) {\n",
              "          node.x = d3_layout_clusterX(children);\n",
              "          node.y = d3_layout_clusterY(children);\n",
              "        } else {\n",
              "          node.x = previousNode ? x += separation(node, previousNode) : 0;\n",
              "          node.y = 0;\n",
              "          previousNode = node;\n",
              "        }\n",
              "      });\n",
              "      var left = d3_layout_clusterLeft(root), right = d3_layout_clusterRight(root), x0 = left.x - separation(left, right) / 2, x1 = right.x + separation(right, left) / 2;\n",
              "      d3_layout_hierarchyVisitAfter(root, nodeSize ? function(node) {\n",
              "        node.x = (node.x - root.x) * size[0];\n",
              "        node.y = (root.y - node.y) * size[1];\n",
              "      } : function(node) {\n",
              "        node.x = (node.x - x0) / (x1 - x0) * size[0];\n",
              "        node.y = (1 - (root.y ? node.y / root.y : 1)) * size[1];\n",
              "      });\n",
              "      return nodes;\n",
              "    }\n",
              "    cluster.separation = function(x) {\n",
              "      if (!arguments.length) return separation;\n",
              "      separation = x;\n",
              "      return cluster;\n",
              "    };\n",
              "    cluster.size = function(x) {\n",
              "      if (!arguments.length) return nodeSize ? null : size;\n",
              "      nodeSize = (size = x) == null;\n",
              "      return cluster;\n",
              "    };\n",
              "    cluster.nodeSize = function(x) {\n",
              "      if (!arguments.length) return nodeSize ? size : null;\n",
              "      nodeSize = (size = x) != null;\n",
              "      return cluster;\n",
              "    };\n",
              "    return d3_layout_hierarchyRebind(cluster, hierarchy);\n",
              "  };\n",
              "  function d3_layout_clusterY(children) {\n",
              "    return 1 + d3.max(children, function(child) {\n",
              "      return child.y;\n",
              "    });\n",
              "  }\n",
              "  function d3_layout_clusterX(children) {\n",
              "    return children.reduce(function(x, child) {\n",
              "      return x + child.x;\n",
              "    }, 0) / children.length;\n",
              "  }\n",
              "  function d3_layout_clusterLeft(node) {\n",
              "    var children = node.children;\n",
              "    return children && children.length ? d3_layout_clusterLeft(children[0]) : node;\n",
              "  }\n",
              "  function d3_layout_clusterRight(node) {\n",
              "    var children = node.children, n;\n",
              "    return children && (n = children.length) ? d3_layout_clusterRight(children[n - 1]) : node;\n",
              "  }\n",
              "  d3.layout.treemap = function() {\n",
              "    var hierarchy = d3.layout.hierarchy(), round = Math.round, size = [ 1, 1 ], padding = null, pad = d3_layout_treemapPadNull, sticky = false, stickies, mode = \"squarify\", ratio = .5 * (1 + Math.sqrt(5));\n",
              "    function scale(children, k) {\n",
              "      var i = -1, n = children.length, child, area;\n",
              "      while (++i < n) {\n",
              "        area = (child = children[i]).value * (k < 0 ? 0 : k);\n",
              "        child.area = isNaN(area) || area <= 0 ? 0 : area;\n",
              "      }\n",
              "    }\n",
              "    function squarify(node) {\n",
              "      var children = node.children;\n",
              "      if (children && children.length) {\n",
              "        var rect = pad(node), row = [], remaining = children.slice(), child, best = Infinity, score, u = mode === \"slice\" ? rect.dx : mode === \"dice\" ? rect.dy : mode === \"slice-dice\" ? node.depth & 1 ? rect.dy : rect.dx : Math.min(rect.dx, rect.dy), n;\n",
              "        scale(remaining, rect.dx * rect.dy / node.value);\n",
              "        row.area = 0;\n",
              "        while ((n = remaining.length) > 0) {\n",
              "          row.push(child = remaining[n - 1]);\n",
              "          row.area += child.area;\n",
              "          if (mode !== \"squarify\" || (score = worst(row, u)) <= best) {\n",
              "            remaining.pop();\n",
              "            best = score;\n",
              "          } else {\n",
              "            row.area -= row.pop().area;\n",
              "            position(row, u, rect, false);\n",
              "            u = Math.min(rect.dx, rect.dy);\n",
              "            row.length = row.area = 0;\n",
              "            best = Infinity;\n",
              "          }\n",
              "        }\n",
              "        if (row.length) {\n",
              "          position(row, u, rect, true);\n",
              "          row.length = row.area = 0;\n",
              "        }\n",
              "        children.forEach(squarify);\n",
              "      }\n",
              "    }\n",
              "    function stickify(node) {\n",
              "      var children = node.children;\n",
              "      if (children && children.length) {\n",
              "        var rect = pad(node), remaining = children.slice(), child, row = [];\n",
              "        scale(remaining, rect.dx * rect.dy / node.value);\n",
              "        row.area = 0;\n",
              "        while (child = remaining.pop()) {\n",
              "          row.push(child);\n",
              "          row.area += child.area;\n",
              "          if (child.z != null) {\n",
              "            position(row, child.z ? rect.dx : rect.dy, rect, !remaining.length);\n",
              "            row.length = row.area = 0;\n",
              "          }\n",
              "        }\n",
              "        children.forEach(stickify);\n",
              "      }\n",
              "    }\n",
              "    function worst(row, u) {\n",
              "      var s = row.area, r, rmax = 0, rmin = Infinity, i = -1, n = row.length;\n",
              "      while (++i < n) {\n",
              "        if (!(r = row[i].area)) continue;\n",
              "        if (r < rmin) rmin = r;\n",
              "        if (r > rmax) rmax = r;\n",
              "      }\n",
              "      s *= s;\n",
              "      u *= u;\n",
              "      return s ? Math.max(u * rmax * ratio / s, s / (u * rmin * ratio)) : Infinity;\n",
              "    }\n",
              "    function position(row, u, rect, flush) {\n",
              "      var i = -1, n = row.length, x = rect.x, y = rect.y, v = u ? round(row.area / u) : 0, o;\n",
              "      if (u == rect.dx) {\n",
              "        if (flush || v > rect.dy) v = rect.dy;\n",
              "        while (++i < n) {\n",
              "          o = row[i];\n",
              "          o.x = x;\n",
              "          o.y = y;\n",
              "          o.dy = v;\n",
              "          x += o.dx = Math.min(rect.x + rect.dx - x, v ? round(o.area / v) : 0);\n",
              "        }\n",
              "        o.z = true;\n",
              "        o.dx += rect.x + rect.dx - x;\n",
              "        rect.y += v;\n",
              "        rect.dy -= v;\n",
              "      } else {\n",
              "        if (flush || v > rect.dx) v = rect.dx;\n",
              "        while (++i < n) {\n",
              "          o = row[i];\n",
              "          o.x = x;\n",
              "          o.y = y;\n",
              "          o.dx = v;\n",
              "          y += o.dy = Math.min(rect.y + rect.dy - y, v ? round(o.area / v) : 0);\n",
              "        }\n",
              "        o.z = false;\n",
              "        o.dy += rect.y + rect.dy - y;\n",
              "        rect.x += v;\n",
              "        rect.dx -= v;\n",
              "      }\n",
              "    }\n",
              "    function treemap(d) {\n",
              "      var nodes = stickies || hierarchy(d), root = nodes[0];\n",
              "      root.x = root.y = 0;\n",
              "      if (root.value) root.dx = size[0], root.dy = size[1]; else root.dx = root.dy = 0;\n",
              "      if (stickies) hierarchy.revalue(root);\n",
              "      scale([ root ], root.dx * root.dy / root.value);\n",
              "      (stickies ? stickify : squarify)(root);\n",
              "      if (sticky) stickies = nodes;\n",
              "      return nodes;\n",
              "    }\n",
              "    treemap.size = function(x) {\n",
              "      if (!arguments.length) return size;\n",
              "      size = x;\n",
              "      return treemap;\n",
              "    };\n",
              "    treemap.padding = function(x) {\n",
              "      if (!arguments.length) return padding;\n",
              "      function padFunction(node) {\n",
              "        var p = x.call(treemap, node, node.depth);\n",
              "        return p == null ? d3_layout_treemapPadNull(node) : d3_layout_treemapPad(node, typeof p === \"number\" ? [ p, p, p, p ] : p);\n",
              "      }\n",
              "      function padConstant(node) {\n",
              "        return d3_layout_treemapPad(node, x);\n",
              "      }\n",
              "      var type;\n",
              "      pad = (padding = x) == null ? d3_layout_treemapPadNull : (type = typeof x) === \"function\" ? padFunction : type === \"number\" ? (x = [ x, x, x, x ], \n",
              "      padConstant) : padConstant;\n",
              "      return treemap;\n",
              "    };\n",
              "    treemap.round = function(x) {\n",
              "      if (!arguments.length) return round != Number;\n",
              "      round = x ? Math.round : Number;\n",
              "      return treemap;\n",
              "    };\n",
              "    treemap.sticky = function(x) {\n",
              "      if (!arguments.length) return sticky;\n",
              "      sticky = x;\n",
              "      stickies = null;\n",
              "      return treemap;\n",
              "    };\n",
              "    treemap.ratio = function(x) {\n",
              "      if (!arguments.length) return ratio;\n",
              "      ratio = x;\n",
              "      return treemap;\n",
              "    };\n",
              "    treemap.mode = function(x) {\n",
              "      if (!arguments.length) return mode;\n",
              "      mode = x + \"\";\n",
              "      return treemap;\n",
              "    };\n",
              "    return d3_layout_hierarchyRebind(treemap, hierarchy);\n",
              "  };\n",
              "  function d3_layout_treemapPadNull(node) {\n",
              "    return {\n",
              "      x: node.x,\n",
              "      y: node.y,\n",
              "      dx: node.dx,\n",
              "      dy: node.dy\n",
              "    };\n",
              "  }\n",
              "  function d3_layout_treemapPad(node, padding) {\n",
              "    var x = node.x + padding[3], y = node.y + padding[0], dx = node.dx - padding[1] - padding[3], dy = node.dy - padding[0] - padding[2];\n",
              "    if (dx < 0) {\n",
              "      x += dx / 2;\n",
              "      dx = 0;\n",
              "    }\n",
              "    if (dy < 0) {\n",
              "      y += dy / 2;\n",
              "      dy = 0;\n",
              "    }\n",
              "    return {\n",
              "      x: x,\n",
              "      y: y,\n",
              "      dx: dx,\n",
              "      dy: dy\n",
              "    };\n",
              "  }\n",
              "  d3.random = {\n",
              "    normal: function(µ, σ) {\n",
              "      var n = arguments.length;\n",
              "      if (n < 2) σ = 1;\n",
              "      if (n < 1) µ = 0;\n",
              "      return function() {\n",
              "        var x, y, r;\n",
              "        do {\n",
              "          x = Math.random() * 2 - 1;\n",
              "          y = Math.random() * 2 - 1;\n",
              "          r = x * x + y * y;\n",
              "        } while (!r || r > 1);\n",
              "        return µ + σ * x * Math.sqrt(-2 * Math.log(r) / r);\n",
              "      };\n",
              "    },\n",
              "    logNormal: function() {\n",
              "      var random = d3.random.normal.apply(d3, arguments);\n",
              "      return function() {\n",
              "        return Math.exp(random());\n",
              "      };\n",
              "    },\n",
              "    bates: function(m) {\n",
              "      var random = d3.random.irwinHall(m);\n",
              "      return function() {\n",
              "        return random() / m;\n",
              "      };\n",
              "    },\n",
              "    irwinHall: function(m) {\n",
              "      return function() {\n",
              "        for (var s = 0, j = 0; j < m; j++) s += Math.random();\n",
              "        return s;\n",
              "      };\n",
              "    }\n",
              "  };\n",
              "  d3.scale = {};\n",
              "  function d3_scaleExtent(domain) {\n",
              "    var start = domain[0], stop = domain[domain.length - 1];\n",
              "    return start < stop ? [ start, stop ] : [ stop, start ];\n",
              "  }\n",
              "  function d3_scaleRange(scale) {\n",
              "    return scale.rangeExtent ? scale.rangeExtent() : d3_scaleExtent(scale.range());\n",
              "  }\n",
              "  function d3_scale_bilinear(domain, range, uninterpolate, interpolate) {\n",
              "    var u = uninterpolate(domain[0], domain[1]), i = interpolate(range[0], range[1]);\n",
              "    return function(x) {\n",
              "      return i(u(x));\n",
              "    };\n",
              "  }\n",
              "  function d3_scale_nice(domain, nice) {\n",
              "    var i0 = 0, i1 = domain.length - 1, x0 = domain[i0], x1 = domain[i1], dx;\n",
              "    if (x1 < x0) {\n",
              "      dx = i0, i0 = i1, i1 = dx;\n",
              "      dx = x0, x0 = x1, x1 = dx;\n",
              "    }\n",
              "    domain[i0] = nice.floor(x0);\n",
              "    domain[i1] = nice.ceil(x1);\n",
              "    return domain;\n",
              "  }\n",
              "  function d3_scale_niceStep(step) {\n",
              "    return step ? {\n",
              "      floor: function(x) {\n",
              "        return Math.floor(x / step) * step;\n",
              "      },\n",
              "      ceil: function(x) {\n",
              "        return Math.ceil(x / step) * step;\n",
              "      }\n",
              "    } : d3_scale_niceIdentity;\n",
              "  }\n",
              "  var d3_scale_niceIdentity = {\n",
              "    floor: d3_identity,\n",
              "    ceil: d3_identity\n",
              "  };\n",
              "  function d3_scale_polylinear(domain, range, uninterpolate, interpolate) {\n",
              "    var u = [], i = [], j = 0, k = Math.min(domain.length, range.length) - 1;\n",
              "    if (domain[k] < domain[0]) {\n",
              "      domain = domain.slice().reverse();\n",
              "      range = range.slice().reverse();\n",
              "    }\n",
              "    while (++j <= k) {\n",
              "      u.push(uninterpolate(domain[j - 1], domain[j]));\n",
              "      i.push(interpolate(range[j - 1], range[j]));\n",
              "    }\n",
              "    return function(x) {\n",
              "      var j = d3.bisect(domain, x, 1, k) - 1;\n",
              "      return i[j](u[j](x));\n",
              "    };\n",
              "  }\n",
              "  d3.scale.linear = function() {\n",
              "    return d3_scale_linear([ 0, 1 ], [ 0, 1 ], d3_interpolate, false);\n",
              "  };\n",
              "  function d3_scale_linear(domain, range, interpolate, clamp) {\n",
              "    var output, input;\n",
              "    function rescale() {\n",
              "      var linear = Math.min(domain.length, range.length) > 2 ? d3_scale_polylinear : d3_scale_bilinear, uninterpolate = clamp ? d3_uninterpolateClamp : d3_uninterpolateNumber;\n",
              "      output = linear(domain, range, uninterpolate, interpolate);\n",
              "      input = linear(range, domain, uninterpolate, d3_interpolate);\n",
              "      return scale;\n",
              "    }\n",
              "    function scale(x) {\n",
              "      return output(x);\n",
              "    }\n",
              "    scale.invert = function(y) {\n",
              "      return input(y);\n",
              "    };\n",
              "    scale.domain = function(x) {\n",
              "      if (!arguments.length) return domain;\n",
              "      domain = x.map(Number);\n",
              "      return rescale();\n",
              "    };\n",
              "    scale.range = function(x) {\n",
              "      if (!arguments.length) return range;\n",
              "      range = x;\n",
              "      return rescale();\n",
              "    };\n",
              "    scale.rangeRound = function(x) {\n",
              "      return scale.range(x).interpolate(d3_interpolateRound);\n",
              "    };\n",
              "    scale.clamp = function(x) {\n",
              "      if (!arguments.length) return clamp;\n",
              "      clamp = x;\n",
              "      return rescale();\n",
              "    };\n",
              "    scale.interpolate = function(x) {\n",
              "      if (!arguments.length) return interpolate;\n",
              "      interpolate = x;\n",
              "      return rescale();\n",
              "    };\n",
              "    scale.ticks = function(m) {\n",
              "      return d3_scale_linearTicks(domain, m);\n",
              "    };\n",
              "    scale.tickFormat = function(m, format) {\n",
              "      return d3_scale_linearTickFormat(domain, m, format);\n",
              "    };\n",
              "    scale.nice = function(m) {\n",
              "      d3_scale_linearNice(domain, m);\n",
              "      return rescale();\n",
              "    };\n",
              "    scale.copy = function() {\n",
              "      return d3_scale_linear(domain, range, interpolate, clamp);\n",
              "    };\n",
              "    return rescale();\n",
              "  }\n",
              "  function d3_scale_linearRebind(scale, linear) {\n",
              "    return d3.rebind(scale, linear, \"range\", \"rangeRound\", \"interpolate\", \"clamp\");\n",
              "  }\n",
              "  function d3_scale_linearNice(domain, m) {\n",
              "    d3_scale_nice(domain, d3_scale_niceStep(d3_scale_linearTickRange(domain, m)[2]));\n",
              "    d3_scale_nice(domain, d3_scale_niceStep(d3_scale_linearTickRange(domain, m)[2]));\n",
              "    return domain;\n",
              "  }\n",
              "  function d3_scale_linearTickRange(domain, m) {\n",
              "    if (m == null) m = 10;\n",
              "    var extent = d3_scaleExtent(domain), span = extent[1] - extent[0], step = Math.pow(10, Math.floor(Math.log(span / m) / Math.LN10)), err = m / span * step;\n",
              "    if (err <= .15) step *= 10; else if (err <= .35) step *= 5; else if (err <= .75) step *= 2;\n",
              "    extent[0] = Math.ceil(extent[0] / step) * step;\n",
              "    extent[1] = Math.floor(extent[1] / step) * step + step * .5;\n",
              "    extent[2] = step;\n",
              "    return extent;\n",
              "  }\n",
              "  function d3_scale_linearTicks(domain, m) {\n",
              "    return d3.range.apply(d3, d3_scale_linearTickRange(domain, m));\n",
              "  }\n",
              "  function d3_scale_linearTickFormat(domain, m, format) {\n",
              "    var range = d3_scale_linearTickRange(domain, m);\n",
              "    if (format) {\n",
              "      var match = d3_format_re.exec(format);\n",
              "      match.shift();\n",
              "      if (match[8] === \"s\") {\n",
              "        var prefix = d3.formatPrefix(Math.max(abs(range[0]), abs(range[1])));\n",
              "        if (!match[7]) match[7] = \".\" + d3_scale_linearPrecision(prefix.scale(range[2]));\n",
              "        match[8] = \"f\";\n",
              "        format = d3.format(match.join(\"\"));\n",
              "        return function(d) {\n",
              "          return format(prefix.scale(d)) + prefix.symbol;\n",
              "        };\n",
              "      }\n",
              "      if (!match[7]) match[7] = \".\" + d3_scale_linearFormatPrecision(match[8], range);\n",
              "      format = match.join(\"\");\n",
              "    } else {\n",
              "      format = \",.\" + d3_scale_linearPrecision(range[2]) + \"f\";\n",
              "    }\n",
              "    return d3.format(format);\n",
              "  }\n",
              "  var d3_scale_linearFormatSignificant = {\n",
              "    s: 1,\n",
              "    g: 1,\n",
              "    p: 1,\n",
              "    r: 1,\n",
              "    e: 1\n",
              "  };\n",
              "  function d3_scale_linearPrecision(value) {\n",
              "    return -Math.floor(Math.log(value) / Math.LN10 + .01);\n",
              "  }\n",
              "  function d3_scale_linearFormatPrecision(type, range) {\n",
              "    var p = d3_scale_linearPrecision(range[2]);\n",
              "    return type in d3_scale_linearFormatSignificant ? Math.abs(p - d3_scale_linearPrecision(Math.max(abs(range[0]), abs(range[1])))) + +(type !== \"e\") : p - (type === \"%\") * 2;\n",
              "  }\n",
              "  d3.scale.log = function() {\n",
              "    return d3_scale_log(d3.scale.linear().domain([ 0, 1 ]), 10, true, [ 1, 10 ]);\n",
              "  };\n",
              "  function d3_scale_log(linear, base, positive, domain) {\n",
              "    function log(x) {\n",
              "      return (positive ? Math.log(x < 0 ? 0 : x) : -Math.log(x > 0 ? 0 : -x)) / Math.log(base);\n",
              "    }\n",
              "    function pow(x) {\n",
              "      return positive ? Math.pow(base, x) : -Math.pow(base, -x);\n",
              "    }\n",
              "    function scale(x) {\n",
              "      return linear(log(x));\n",
              "    }\n",
              "    scale.invert = function(x) {\n",
              "      return pow(linear.invert(x));\n",
              "    };\n",
              "    scale.domain = function(x) {\n",
              "      if (!arguments.length) return domain;\n",
              "      positive = x[0] >= 0;\n",
              "      linear.domain((domain = x.map(Number)).map(log));\n",
              "      return scale;\n",
              "    };\n",
              "    scale.base = function(_) {\n",
              "      if (!arguments.length) return base;\n",
              "      base = +_;\n",
              "      linear.domain(domain.map(log));\n",
              "      return scale;\n",
              "    };\n",
              "    scale.nice = function() {\n",
              "      var niced = d3_scale_nice(domain.map(log), positive ? Math : d3_scale_logNiceNegative);\n",
              "      linear.domain(niced);\n",
              "      domain = niced.map(pow);\n",
              "      return scale;\n",
              "    };\n",
              "    scale.ticks = function() {\n",
              "      var extent = d3_scaleExtent(domain), ticks = [], u = extent[0], v = extent[1], i = Math.floor(log(u)), j = Math.ceil(log(v)), n = base % 1 ? 2 : base;\n",
              "      if (isFinite(j - i)) {\n",
              "        if (positive) {\n",
              "          for (;i < j; i++) for (var k = 1; k < n; k++) ticks.push(pow(i) * k);\n",
              "          ticks.push(pow(i));\n",
              "        } else {\n",
              "          ticks.push(pow(i));\n",
              "          for (;i++ < j; ) for (var k = n - 1; k > 0; k--) ticks.push(pow(i) * k);\n",
              "        }\n",
              "        for (i = 0; ticks[i] < u; i++) {}\n",
              "        for (j = ticks.length; ticks[j - 1] > v; j--) {}\n",
              "        ticks = ticks.slice(i, j);\n",
              "      }\n",
              "      return ticks;\n",
              "    };\n",
              "    scale.tickFormat = function(n, format) {\n",
              "      if (!arguments.length) return d3_scale_logFormat;\n",
              "      if (arguments.length < 2) format = d3_scale_logFormat; else if (typeof format !== \"function\") format = d3.format(format);\n",
              "      var k = Math.max(1, base * n / scale.ticks().length);\n",
              "      return function(d) {\n",
              "        var i = d / pow(Math.round(log(d)));\n",
              "        if (i * base < base - .5) i *= base;\n",
              "        return i <= k ? format(d) : \"\";\n",
              "      };\n",
              "    };\n",
              "    scale.copy = function() {\n",
              "      return d3_scale_log(linear.copy(), base, positive, domain);\n",
              "    };\n",
              "    return d3_scale_linearRebind(scale, linear);\n",
              "  }\n",
              "  var d3_scale_logFormat = d3.format(\".0e\"), d3_scale_logNiceNegative = {\n",
              "    floor: function(x) {\n",
              "      return -Math.ceil(-x);\n",
              "    },\n",
              "    ceil: function(x) {\n",
              "      return -Math.floor(-x);\n",
              "    }\n",
              "  };\n",
              "  d3.scale.pow = function() {\n",
              "    return d3_scale_pow(d3.scale.linear(), 1, [ 0, 1 ]);\n",
              "  };\n",
              "  function d3_scale_pow(linear, exponent, domain) {\n",
              "    var powp = d3_scale_powPow(exponent), powb = d3_scale_powPow(1 / exponent);\n",
              "    function scale(x) {\n",
              "      return linear(powp(x));\n",
              "    }\n",
              "    scale.invert = function(x) {\n",
              "      return powb(linear.invert(x));\n",
              "    };\n",
              "    scale.domain = function(x) {\n",
              "      if (!arguments.length) return domain;\n",
              "      linear.domain((domain = x.map(Number)).map(powp));\n",
              "      return scale;\n",
              "    };\n",
              "    scale.ticks = function(m) {\n",
              "      return d3_scale_linearTicks(domain, m);\n",
              "    };\n",
              "    scale.tickFormat = function(m, format) {\n",
              "      return d3_scale_linearTickFormat(domain, m, format);\n",
              "    };\n",
              "    scale.nice = function(m) {\n",
              "      return scale.domain(d3_scale_linearNice(domain, m));\n",
              "    };\n",
              "    scale.exponent = function(x) {\n",
              "      if (!arguments.length) return exponent;\n",
              "      powp = d3_scale_powPow(exponent = x);\n",
              "      powb = d3_scale_powPow(1 / exponent);\n",
              "      linear.domain(domain.map(powp));\n",
              "      return scale;\n",
              "    };\n",
              "    scale.copy = function() {\n",
              "      return d3_scale_pow(linear.copy(), exponent, domain);\n",
              "    };\n",
              "    return d3_scale_linearRebind(scale, linear);\n",
              "  }\n",
              "  function d3_scale_powPow(e) {\n",
              "    return function(x) {\n",
              "      return x < 0 ? -Math.pow(-x, e) : Math.pow(x, e);\n",
              "    };\n",
              "  }\n",
              "  d3.scale.sqrt = function() {\n",
              "    return d3.scale.pow().exponent(.5);\n",
              "  };\n",
              "  d3.scale.ordinal = function() {\n",
              "    return d3_scale_ordinal([], {\n",
              "      t: \"range\",\n",
              "      a: [ [] ]\n",
              "    });\n",
              "  };\n",
              "  function d3_scale_ordinal(domain, ranger) {\n",
              "    var index, range, rangeBand;\n",
              "    function scale(x) {\n",
              "      return range[((index.get(x) || (ranger.t === \"range\" ? index.set(x, domain.push(x)) : NaN)) - 1) % range.length];\n",
              "    }\n",
              "    function steps(start, step) {\n",
              "      return d3.range(domain.length).map(function(i) {\n",
              "        return start + step * i;\n",
              "      });\n",
              "    }\n",
              "    scale.domain = function(x) {\n",
              "      if (!arguments.length) return domain;\n",
              "      domain = [];\n",
              "      index = new d3_Map();\n",
              "      var i = -1, n = x.length, xi;\n",
              "      while (++i < n) if (!index.has(xi = x[i])) index.set(xi, domain.push(xi));\n",
              "      return scale[ranger.t].apply(scale, ranger.a);\n",
              "    };\n",
              "    scale.range = function(x) {\n",
              "      if (!arguments.length) return range;\n",
              "      range = x;\n",
              "      rangeBand = 0;\n",
              "      ranger = {\n",
              "        t: \"range\",\n",
              "        a: arguments\n",
              "      };\n",
              "      return scale;\n",
              "    };\n",
              "    scale.rangePoints = function(x, padding) {\n",
              "      if (arguments.length < 2) padding = 0;\n",
              "      var start = x[0], stop = x[1], step = domain.length < 2 ? (start = (start + stop) / 2, \n",
              "      0) : (stop - start) / (domain.length - 1 + padding);\n",
              "      range = steps(start + step * padding / 2, step);\n",
              "      rangeBand = 0;\n",
              "      ranger = {\n",
              "        t: \"rangePoints\",\n",
              "        a: arguments\n",
              "      };\n",
              "      return scale;\n",
              "    };\n",
              "    scale.rangeRoundPoints = function(x, padding) {\n",
              "      if (arguments.length < 2) padding = 0;\n",
              "      var start = x[0], stop = x[1], step = domain.length < 2 ? (start = stop = Math.round((start + stop) / 2), \n",
              "      0) : (stop - start) / (domain.length - 1 + padding) | 0;\n",
              "      range = steps(start + Math.round(step * padding / 2 + (stop - start - (domain.length - 1 + padding) * step) / 2), step);\n",
              "      rangeBand = 0;\n",
              "      ranger = {\n",
              "        t: \"rangeRoundPoints\",\n",
              "        a: arguments\n",
              "      };\n",
              "      return scale;\n",
              "    };\n",
              "    scale.rangeBands = function(x, padding, outerPadding) {\n",
              "      if (arguments.length < 2) padding = 0;\n",
              "      if (arguments.length < 3) outerPadding = padding;\n",
              "      var reverse = x[1] < x[0], start = x[reverse - 0], stop = x[1 - reverse], step = (stop - start) / (domain.length - padding + 2 * outerPadding);\n",
              "      range = steps(start + step * outerPadding, step);\n",
              "      if (reverse) range.reverse();\n",
              "      rangeBand = step * (1 - padding);\n",
              "      ranger = {\n",
              "        t: \"rangeBands\",\n",
              "        a: arguments\n",
              "      };\n",
              "      return scale;\n",
              "    };\n",
              "    scale.rangeRoundBands = function(x, padding, outerPadding) {\n",
              "      if (arguments.length < 2) padding = 0;\n",
              "      if (arguments.length < 3) outerPadding = padding;\n",
              "      var reverse = x[1] < x[0], start = x[reverse - 0], stop = x[1 - reverse], step = Math.floor((stop - start) / (domain.length - padding + 2 * outerPadding));\n",
              "      range = steps(start + Math.round((stop - start - (domain.length - padding) * step) / 2), step);\n",
              "      if (reverse) range.reverse();\n",
              "      rangeBand = Math.round(step * (1 - padding));\n",
              "      ranger = {\n",
              "        t: \"rangeRoundBands\",\n",
              "        a: arguments\n",
              "      };\n",
              "      return scale;\n",
              "    };\n",
              "    scale.rangeBand = function() {\n",
              "      return rangeBand;\n",
              "    };\n",
              "    scale.rangeExtent = function() {\n",
              "      return d3_scaleExtent(ranger.a[0]);\n",
              "    };\n",
              "    scale.copy = function() {\n",
              "      return d3_scale_ordinal(domain, ranger);\n",
              "    };\n",
              "    return scale.domain(domain);\n",
              "  }\n",
              "  d3.scale.category10 = function() {\n",
              "    return d3.scale.ordinal().range(d3_category10);\n",
              "  };\n",
              "  d3.scale.category20 = function() {\n",
              "    return d3.scale.ordinal().range(d3_category20);\n",
              "  };\n",
              "  d3.scale.category20b = function() {\n",
              "    return d3.scale.ordinal().range(d3_category20b);\n",
              "  };\n",
              "  d3.scale.category20c = function() {\n",
              "    return d3.scale.ordinal().range(d3_category20c);\n",
              "  };\n",
              "  var d3_category10 = [ 2062260, 16744206, 2924588, 14034728, 9725885, 9197131, 14907330, 8355711, 12369186, 1556175 ].map(d3_rgbString);\n",
              "  var d3_category20 = [ 2062260, 11454440, 16744206, 16759672, 2924588, 10018698, 14034728, 16750742, 9725885, 12955861, 9197131, 12885140, 14907330, 16234194, 8355711, 13092807, 12369186, 14408589, 1556175, 10410725 ].map(d3_rgbString);\n",
              "  var d3_category20b = [ 3750777, 5395619, 7040719, 10264286, 6519097, 9216594, 11915115, 13556636, 9202993, 12426809, 15186514, 15190932, 8666169, 11356490, 14049643, 15177372, 8077683, 10834324, 13528509, 14589654 ].map(d3_rgbString);\n",
              "  var d3_category20c = [ 3244733, 7057110, 10406625, 13032431, 15095053, 16616764, 16625259, 16634018, 3253076, 7652470, 10607003, 13101504, 7695281, 10394312, 12369372, 14342891, 6513507, 9868950, 12434877, 14277081 ].map(d3_rgbString);\n",
              "  d3.scale.quantile = function() {\n",
              "    return d3_scale_quantile([], []);\n",
              "  };\n",
              "  function d3_scale_quantile(domain, range) {\n",
              "    var thresholds;\n",
              "    function rescale() {\n",
              "      var k = 0, q = range.length;\n",
              "      thresholds = [];\n",
              "      while (++k < q) thresholds[k - 1] = d3.quantile(domain, k / q);\n",
              "      return scale;\n",
              "    }\n",
              "    function scale(x) {\n",
              "      if (!isNaN(x = +x)) return range[d3.bisect(thresholds, x)];\n",
              "    }\n",
              "    scale.domain = function(x) {\n",
              "      if (!arguments.length) return domain;\n",
              "      domain = x.map(d3_number).filter(d3_numeric).sort(d3_ascending);\n",
              "      return rescale();\n",
              "    };\n",
              "    scale.range = function(x) {\n",
              "      if (!arguments.length) return range;\n",
              "      range = x;\n",
              "      return rescale();\n",
              "    };\n",
              "    scale.quantiles = function() {\n",
              "      return thresholds;\n",
              "    };\n",
              "    scale.invertExtent = function(y) {\n",
              "      y = range.indexOf(y);\n",
              "      return y < 0 ? [ NaN, NaN ] : [ y > 0 ? thresholds[y - 1] : domain[0], y < thresholds.length ? thresholds[y] : domain[domain.length - 1] ];\n",
              "    };\n",
              "    scale.copy = function() {\n",
              "      return d3_scale_quantile(domain, range);\n",
              "    };\n",
              "    return rescale();\n",
              "  }\n",
              "  d3.scale.quantize = function() {\n",
              "    return d3_scale_quantize(0, 1, [ 0, 1 ]);\n",
              "  };\n",
              "  function d3_scale_quantize(x0, x1, range) {\n",
              "    var kx, i;\n",
              "    function scale(x) {\n",
              "      return range[Math.max(0, Math.min(i, Math.floor(kx * (x - x0))))];\n",
              "    }\n",
              "    function rescale() {\n",
              "      kx = range.length / (x1 - x0);\n",
              "      i = range.length - 1;\n",
              "      return scale;\n",
              "    }\n",
              "    scale.domain = function(x) {\n",
              "      if (!arguments.length) return [ x0, x1 ];\n",
              "      x0 = +x[0];\n",
              "      x1 = +x[x.length - 1];\n",
              "      return rescale();\n",
              "    };\n",
              "    scale.range = function(x) {\n",
              "      if (!arguments.length) return range;\n",
              "      range = x;\n",
              "      return rescale();\n",
              "    };\n",
              "    scale.invertExtent = function(y) {\n",
              "      y = range.indexOf(y);\n",
              "      y = y < 0 ? NaN : y / kx + x0;\n",
              "      return [ y, y + 1 / kx ];\n",
              "    };\n",
              "    scale.copy = function() {\n",
              "      return d3_scale_quantize(x0, x1, range);\n",
              "    };\n",
              "    return rescale();\n",
              "  }\n",
              "  d3.scale.threshold = function() {\n",
              "    return d3_scale_threshold([ .5 ], [ 0, 1 ]);\n",
              "  };\n",
              "  function d3_scale_threshold(domain, range) {\n",
              "    function scale(x) {\n",
              "      if (x <= x) return range[d3.bisect(domain, x)];\n",
              "    }\n",
              "    scale.domain = function(_) {\n",
              "      if (!arguments.length) return domain;\n",
              "      domain = _;\n",
              "      return scale;\n",
              "    };\n",
              "    scale.range = function(_) {\n",
              "      if (!arguments.length) return range;\n",
              "      range = _;\n",
              "      return scale;\n",
              "    };\n",
              "    scale.invertExtent = function(y) {\n",
              "      y = range.indexOf(y);\n",
              "      return [ domain[y - 1], domain[y] ];\n",
              "    };\n",
              "    scale.copy = function() {\n",
              "      return d3_scale_threshold(domain, range);\n",
              "    };\n",
              "    return scale;\n",
              "  }\n",
              "  d3.scale.identity = function() {\n",
              "    return d3_scale_identity([ 0, 1 ]);\n",
              "  };\n",
              "  function d3_scale_identity(domain) {\n",
              "    function identity(x) {\n",
              "      return +x;\n",
              "    }\n",
              "    identity.invert = identity;\n",
              "    identity.domain = identity.range = function(x) {\n",
              "      if (!arguments.length) return domain;\n",
              "      domain = x.map(identity);\n",
              "      return identity;\n",
              "    };\n",
              "    identity.ticks = function(m) {\n",
              "      return d3_scale_linearTicks(domain, m);\n",
              "    };\n",
              "    identity.tickFormat = function(m, format) {\n",
              "      return d3_scale_linearTickFormat(domain, m, format);\n",
              "    };\n",
              "    identity.copy = function() {\n",
              "      return d3_scale_identity(domain);\n",
              "    };\n",
              "    return identity;\n",
              "  }\n",
              "  d3.svg = {};\n",
              "  function d3_zero() {\n",
              "    return 0;\n",
              "  }\n",
              "  d3.svg.arc = function() {\n",
              "    var innerRadius = d3_svg_arcInnerRadius, outerRadius = d3_svg_arcOuterRadius, cornerRadius = d3_zero, padRadius = d3_svg_arcAuto, startAngle = d3_svg_arcStartAngle, endAngle = d3_svg_arcEndAngle, padAngle = d3_svg_arcPadAngle;\n",
              "    function arc() {\n",
              "      var r0 = Math.max(0, +innerRadius.apply(this, arguments)), r1 = Math.max(0, +outerRadius.apply(this, arguments)), a0 = startAngle.apply(this, arguments) - halfπ, a1 = endAngle.apply(this, arguments) - halfπ, da = Math.abs(a1 - a0), cw = a0 > a1 ? 0 : 1;\n",
              "      if (r1 < r0) rc = r1, r1 = r0, r0 = rc;\n",
              "      if (da >= τε) return circleSegment(r1, cw) + (r0 ? circleSegment(r0, 1 - cw) : \"\") + \"Z\";\n",
              "      var rc, cr, rp, ap, p0 = 0, p1 = 0, x0, y0, x1, y1, x2, y2, x3, y3, path = [];\n",
              "      if (ap = (+padAngle.apply(this, arguments) || 0) / 2) {\n",
              "        rp = padRadius === d3_svg_arcAuto ? Math.sqrt(r0 * r0 + r1 * r1) : +padRadius.apply(this, arguments);\n",
              "        if (!cw) p1 *= -1;\n",
              "        if (r1) p1 = d3_asin(rp / r1 * Math.sin(ap));\n",
              "        if (r0) p0 = d3_asin(rp / r0 * Math.sin(ap));\n",
              "      }\n",
              "      if (r1) {\n",
              "        x0 = r1 * Math.cos(a0 + p1);\n",
              "        y0 = r1 * Math.sin(a0 + p1);\n",
              "        x1 = r1 * Math.cos(a1 - p1);\n",
              "        y1 = r1 * Math.sin(a1 - p1);\n",
              "        var l1 = Math.abs(a1 - a0 - 2 * p1) <= π ? 0 : 1;\n",
              "        if (p1 && d3_svg_arcSweep(x0, y0, x1, y1) === cw ^ l1) {\n",
              "          var h1 = (a0 + a1) / 2;\n",
              "          x0 = r1 * Math.cos(h1);\n",
              "          y0 = r1 * Math.sin(h1);\n",
              "          x1 = y1 = null;\n",
              "        }\n",
              "      } else {\n",
              "        x0 = y0 = 0;\n",
              "      }\n",
              "      if (r0) {\n",
              "        x2 = r0 * Math.cos(a1 - p0);\n",
              "        y2 = r0 * Math.sin(a1 - p0);\n",
              "        x3 = r0 * Math.cos(a0 + p0);\n",
              "        y3 = r0 * Math.sin(a0 + p0);\n",
              "        var l0 = Math.abs(a0 - a1 + 2 * p0) <= π ? 0 : 1;\n",
              "        if (p0 && d3_svg_arcSweep(x2, y2, x3, y3) === 1 - cw ^ l0) {\n",
              "          var h0 = (a0 + a1) / 2;\n",
              "          x2 = r0 * Math.cos(h0);\n",
              "          y2 = r0 * Math.sin(h0);\n",
              "          x3 = y3 = null;\n",
              "        }\n",
              "      } else {\n",
              "        x2 = y2 = 0;\n",
              "      }\n",
              "      if (da > ε && (rc = Math.min(Math.abs(r1 - r0) / 2, +cornerRadius.apply(this, arguments))) > .001) {\n",
              "        cr = r0 < r1 ^ cw ? 0 : 1;\n",
              "        var rc1 = rc, rc0 = rc;\n",
              "        if (da < π) {\n",
              "          var oc = x3 == null ? [ x2, y2 ] : x1 == null ? [ x0, y0 ] : d3_geom_polygonIntersect([ x0, y0 ], [ x3, y3 ], [ x1, y1 ], [ x2, y2 ]), ax = x0 - oc[0], ay = y0 - oc[1], bx = x1 - oc[0], by = y1 - oc[1], kc = 1 / Math.sin(Math.acos((ax * bx + ay * by) / (Math.sqrt(ax * ax + ay * ay) * Math.sqrt(bx * bx + by * by))) / 2), lc = Math.sqrt(oc[0] * oc[0] + oc[1] * oc[1]);\n",
              "          rc0 = Math.min(rc, (r0 - lc) / (kc - 1));\n",
              "          rc1 = Math.min(rc, (r1 - lc) / (kc + 1));\n",
              "        }\n",
              "        if (x1 != null) {\n",
              "          var t30 = d3_svg_arcCornerTangents(x3 == null ? [ x2, y2 ] : [ x3, y3 ], [ x0, y0 ], r1, rc1, cw), t12 = d3_svg_arcCornerTangents([ x1, y1 ], [ x2, y2 ], r1, rc1, cw);\n",
              "          if (rc === rc1) {\n",
              "            path.push(\"M\", t30[0], \"A\", rc1, \",\", rc1, \" 0 0,\", cr, \" \", t30[1], \"A\", r1, \",\", r1, \" 0 \", 1 - cw ^ d3_svg_arcSweep(t30[1][0], t30[1][1], t12[1][0], t12[1][1]), \",\", cw, \" \", t12[1], \"A\", rc1, \",\", rc1, \" 0 0,\", cr, \" \", t12[0]);\n",
              "          } else {\n",
              "            path.push(\"M\", t30[0], \"A\", rc1, \",\", rc1, \" 0 1,\", cr, \" \", t12[0]);\n",
              "          }\n",
              "        } else {\n",
              "          path.push(\"M\", x0, \",\", y0);\n",
              "        }\n",
              "        if (x3 != null) {\n",
              "          var t03 = d3_svg_arcCornerTangents([ x0, y0 ], [ x3, y3 ], r0, -rc0, cw), t21 = d3_svg_arcCornerTangents([ x2, y2 ], x1 == null ? [ x0, y0 ] : [ x1, y1 ], r0, -rc0, cw);\n",
              "          if (rc === rc0) {\n",
              "            path.push(\"L\", t21[0], \"A\", rc0, \",\", rc0, \" 0 0,\", cr, \" \", t21[1], \"A\", r0, \",\", r0, \" 0 \", cw ^ d3_svg_arcSweep(t21[1][0], t21[1][1], t03[1][0], t03[1][1]), \",\", 1 - cw, \" \", t03[1], \"A\", rc0, \",\", rc0, \" 0 0,\", cr, \" \", t03[0]);\n",
              "          } else {\n",
              "            path.push(\"L\", t21[0], \"A\", rc0, \",\", rc0, \" 0 0,\", cr, \" \", t03[0]);\n",
              "          }\n",
              "        } else {\n",
              "          path.push(\"L\", x2, \",\", y2);\n",
              "        }\n",
              "      } else {\n",
              "        path.push(\"M\", x0, \",\", y0);\n",
              "        if (x1 != null) path.push(\"A\", r1, \",\", r1, \" 0 \", l1, \",\", cw, \" \", x1, \",\", y1);\n",
              "        path.push(\"L\", x2, \",\", y2);\n",
              "        if (x3 != null) path.push(\"A\", r0, \",\", r0, \" 0 \", l0, \",\", 1 - cw, \" \", x3, \",\", y3);\n",
              "      }\n",
              "      path.push(\"Z\");\n",
              "      return path.join(\"\");\n",
              "    }\n",
              "    function circleSegment(r1, cw) {\n",
              "      return \"M0,\" + r1 + \"A\" + r1 + \",\" + r1 + \" 0 1,\" + cw + \" 0,\" + -r1 + \"A\" + r1 + \",\" + r1 + \" 0 1,\" + cw + \" 0,\" + r1;\n",
              "    }\n",
              "    arc.innerRadius = function(v) {\n",
              "      if (!arguments.length) return innerRadius;\n",
              "      innerRadius = d3_functor(v);\n",
              "      return arc;\n",
              "    };\n",
              "    arc.outerRadius = function(v) {\n",
              "      if (!arguments.length) return outerRadius;\n",
              "      outerRadius = d3_functor(v);\n",
              "      return arc;\n",
              "    };\n",
              "    arc.cornerRadius = function(v) {\n",
              "      if (!arguments.length) return cornerRadius;\n",
              "      cornerRadius = d3_functor(v);\n",
              "      return arc;\n",
              "    };\n",
              "    arc.padRadius = function(v) {\n",
              "      if (!arguments.length) return padRadius;\n",
              "      padRadius = v == d3_svg_arcAuto ? d3_svg_arcAuto : d3_functor(v);\n",
              "      return arc;\n",
              "    };\n",
              "    arc.startAngle = function(v) {\n",
              "      if (!arguments.length) return startAngle;\n",
              "      startAngle = d3_functor(v);\n",
              "      return arc;\n",
              "    };\n",
              "    arc.endAngle = function(v) {\n",
              "      if (!arguments.length) return endAngle;\n",
              "      endAngle = d3_functor(v);\n",
              "      return arc;\n",
              "    };\n",
              "    arc.padAngle = function(v) {\n",
              "      if (!arguments.length) return padAngle;\n",
              "      padAngle = d3_functor(v);\n",
              "      return arc;\n",
              "    };\n",
              "    arc.centroid = function() {\n",
              "      var r = (+innerRadius.apply(this, arguments) + +outerRadius.apply(this, arguments)) / 2, a = (+startAngle.apply(this, arguments) + +endAngle.apply(this, arguments)) / 2 - halfπ;\n",
              "      return [ Math.cos(a) * r, Math.sin(a) * r ];\n",
              "    };\n",
              "    return arc;\n",
              "  };\n",
              "  var d3_svg_arcAuto = \"auto\";\n",
              "  function d3_svg_arcInnerRadius(d) {\n",
              "    return d.innerRadius;\n",
              "  }\n",
              "  function d3_svg_arcOuterRadius(d) {\n",
              "    return d.outerRadius;\n",
              "  }\n",
              "  function d3_svg_arcStartAngle(d) {\n",
              "    return d.startAngle;\n",
              "  }\n",
              "  function d3_svg_arcEndAngle(d) {\n",
              "    return d.endAngle;\n",
              "  }\n",
              "  function d3_svg_arcPadAngle(d) {\n",
              "    return d && d.padAngle;\n",
              "  }\n",
              "  function d3_svg_arcSweep(x0, y0, x1, y1) {\n",
              "    return (x0 - x1) * y0 - (y0 - y1) * x0 > 0 ? 0 : 1;\n",
              "  }\n",
              "  function d3_svg_arcCornerTangents(p0, p1, r1, rc, cw) {\n",
              "    var x01 = p0[0] - p1[0], y01 = p0[1] - p1[1], lo = (cw ? rc : -rc) / Math.sqrt(x01 * x01 + y01 * y01), ox = lo * y01, oy = -lo * x01, x1 = p0[0] + ox, y1 = p0[1] + oy, x2 = p1[0] + ox, y2 = p1[1] + oy, x3 = (x1 + x2) / 2, y3 = (y1 + y2) / 2, dx = x2 - x1, dy = y2 - y1, d2 = dx * dx + dy * dy, r = r1 - rc, D = x1 * y2 - x2 * y1, d = (dy < 0 ? -1 : 1) * Math.sqrt(Math.max(0, r * r * d2 - D * D)), cx0 = (D * dy - dx * d) / d2, cy0 = (-D * dx - dy * d) / d2, cx1 = (D * dy + dx * d) / d2, cy1 = (-D * dx + dy * d) / d2, dx0 = cx0 - x3, dy0 = cy0 - y3, dx1 = cx1 - x3, dy1 = cy1 - y3;\n",
              "    if (dx0 * dx0 + dy0 * dy0 > dx1 * dx1 + dy1 * dy1) cx0 = cx1, cy0 = cy1;\n",
              "    return [ [ cx0 - ox, cy0 - oy ], [ cx0 * r1 / r, cy0 * r1 / r ] ];\n",
              "  }\n",
              "  function d3_svg_line(projection) {\n",
              "    var x = d3_geom_pointX, y = d3_geom_pointY, defined = d3_true, interpolate = d3_svg_lineLinear, interpolateKey = interpolate.key, tension = .7;\n",
              "    function line(data) {\n",
              "      var segments = [], points = [], i = -1, n = data.length, d, fx = d3_functor(x), fy = d3_functor(y);\n",
              "      function segment() {\n",
              "        segments.push(\"M\", interpolate(projection(points), tension));\n",
              "      }\n",
              "      while (++i < n) {\n",
              "        if (defined.call(this, d = data[i], i)) {\n",
              "          points.push([ +fx.call(this, d, i), +fy.call(this, d, i) ]);\n",
              "        } else if (points.length) {\n",
              "          segment();\n",
              "          points = [];\n",
              "        }\n",
              "      }\n",
              "      if (points.length) segment();\n",
              "      return segments.length ? segments.join(\"\") : null;\n",
              "    }\n",
              "    line.x = function(_) {\n",
              "      if (!arguments.length) return x;\n",
              "      x = _;\n",
              "      return line;\n",
              "    };\n",
              "    line.y = function(_) {\n",
              "      if (!arguments.length) return y;\n",
              "      y = _;\n",
              "      return line;\n",
              "    };\n",
              "    line.defined = function(_) {\n",
              "      if (!arguments.length) return defined;\n",
              "      defined = _;\n",
              "      return line;\n",
              "    };\n",
              "    line.interpolate = function(_) {\n",
              "      if (!arguments.length) return interpolateKey;\n",
              "      if (typeof _ === \"function\") interpolateKey = interpolate = _; else interpolateKey = (interpolate = d3_svg_lineInterpolators.get(_) || d3_svg_lineLinear).key;\n",
              "      return line;\n",
              "    };\n",
              "    line.tension = function(_) {\n",
              "      if (!arguments.length) return tension;\n",
              "      tension = _;\n",
              "      return line;\n",
              "    };\n",
              "    return line;\n",
              "  }\n",
              "  d3.svg.line = function() {\n",
              "    return d3_svg_line(d3_identity);\n",
              "  };\n",
              "  var d3_svg_lineInterpolators = d3.map({\n",
              "    linear: d3_svg_lineLinear,\n",
              "    \"linear-closed\": d3_svg_lineLinearClosed,\n",
              "    step: d3_svg_lineStep,\n",
              "    \"step-before\": d3_svg_lineStepBefore,\n",
              "    \"step-after\": d3_svg_lineStepAfter,\n",
              "    basis: d3_svg_lineBasis,\n",
              "    \"basis-open\": d3_svg_lineBasisOpen,\n",
              "    \"basis-closed\": d3_svg_lineBasisClosed,\n",
              "    bundle: d3_svg_lineBundle,\n",
              "    cardinal: d3_svg_lineCardinal,\n",
              "    \"cardinal-open\": d3_svg_lineCardinalOpen,\n",
              "    \"cardinal-closed\": d3_svg_lineCardinalClosed,\n",
              "    monotone: d3_svg_lineMonotone\n",
              "  });\n",
              "  d3_svg_lineInterpolators.forEach(function(key, value) {\n",
              "    value.key = key;\n",
              "    value.closed = /-closed$/.test(key);\n",
              "  });\n",
              "  function d3_svg_lineLinear(points) {\n",
              "    return points.length > 1 ? points.join(\"L\") : points + \"Z\";\n",
              "  }\n",
              "  function d3_svg_lineLinearClosed(points) {\n",
              "    return points.join(\"L\") + \"Z\";\n",
              "  }\n",
              "  function d3_svg_lineStep(points) {\n",
              "    var i = 0, n = points.length, p = points[0], path = [ p[0], \",\", p[1] ];\n",
              "    while (++i < n) path.push(\"H\", (p[0] + (p = points[i])[0]) / 2, \"V\", p[1]);\n",
              "    if (n > 1) path.push(\"H\", p[0]);\n",
              "    return path.join(\"\");\n",
              "  }\n",
              "  function d3_svg_lineStepBefore(points) {\n",
              "    var i = 0, n = points.length, p = points[0], path = [ p[0], \",\", p[1] ];\n",
              "    while (++i < n) path.push(\"V\", (p = points[i])[1], \"H\", p[0]);\n",
              "    return path.join(\"\");\n",
              "  }\n",
              "  function d3_svg_lineStepAfter(points) {\n",
              "    var i = 0, n = points.length, p = points[0], path = [ p[0], \",\", p[1] ];\n",
              "    while (++i < n) path.push(\"H\", (p = points[i])[0], \"V\", p[1]);\n",
              "    return path.join(\"\");\n",
              "  }\n",
              "  function d3_svg_lineCardinalOpen(points, tension) {\n",
              "    return points.length < 4 ? d3_svg_lineLinear(points) : points[1] + d3_svg_lineHermite(points.slice(1, -1), d3_svg_lineCardinalTangents(points, tension));\n",
              "  }\n",
              "  function d3_svg_lineCardinalClosed(points, tension) {\n",
              "    return points.length < 3 ? d3_svg_lineLinearClosed(points) : points[0] + d3_svg_lineHermite((points.push(points[0]), \n",
              "    points), d3_svg_lineCardinalTangents([ points[points.length - 2] ].concat(points, [ points[1] ]), tension));\n",
              "  }\n",
              "  function d3_svg_lineCardinal(points, tension) {\n",
              "    return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite(points, d3_svg_lineCardinalTangents(points, tension));\n",
              "  }\n",
              "  function d3_svg_lineHermite(points, tangents) {\n",
              "    if (tangents.length < 1 || points.length != tangents.length && points.length != tangents.length + 2) {\n",
              "      return d3_svg_lineLinear(points);\n",
              "    }\n",
              "    var quad = points.length != tangents.length, path = \"\", p0 = points[0], p = points[1], t0 = tangents[0], t = t0, pi = 1;\n",
              "    if (quad) {\n",
              "      path += \"Q\" + (p[0] - t0[0] * 2 / 3) + \",\" + (p[1] - t0[1] * 2 / 3) + \",\" + p[0] + \",\" + p[1];\n",
              "      p0 = points[1];\n",
              "      pi = 2;\n",
              "    }\n",
              "    if (tangents.length > 1) {\n",
              "      t = tangents[1];\n",
              "      p = points[pi];\n",
              "      pi++;\n",
              "      path += \"C\" + (p0[0] + t0[0]) + \",\" + (p0[1] + t0[1]) + \",\" + (p[0] - t[0]) + \",\" + (p[1] - t[1]) + \",\" + p[0] + \",\" + p[1];\n",
              "      for (var i = 2; i < tangents.length; i++, pi++) {\n",
              "        p = points[pi];\n",
              "        t = tangents[i];\n",
              "        path += \"S\" + (p[0] - t[0]) + \",\" + (p[1] - t[1]) + \",\" + p[0] + \",\" + p[1];\n",
              "      }\n",
              "    }\n",
              "    if (quad) {\n",
              "      var lp = points[pi];\n",
              "      path += \"Q\" + (p[0] + t[0] * 2 / 3) + \",\" + (p[1] + t[1] * 2 / 3) + \",\" + lp[0] + \",\" + lp[1];\n",
              "    }\n",
              "    return path;\n",
              "  }\n",
              "  function d3_svg_lineCardinalTangents(points, tension) {\n",
              "    var tangents = [], a = (1 - tension) / 2, p0, p1 = points[0], p2 = points[1], i = 1, n = points.length;\n",
              "    while (++i < n) {\n",
              "      p0 = p1;\n",
              "      p1 = p2;\n",
              "      p2 = points[i];\n",
              "      tangents.push([ a * (p2[0] - p0[0]), a * (p2[1] - p0[1]) ]);\n",
              "    }\n",
              "    return tangents;\n",
              "  }\n",
              "  function d3_svg_lineBasis(points) {\n",
              "    if (points.length < 3) return d3_svg_lineLinear(points);\n",
              "    var i = 1, n = points.length, pi = points[0], x0 = pi[0], y0 = pi[1], px = [ x0, x0, x0, (pi = points[1])[0] ], py = [ y0, y0, y0, pi[1] ], path = [ x0, \",\", y0, \"L\", d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), \",\", d3_svg_lineDot4(d3_svg_lineBasisBezier3, py) ];\n",
              "    points.push(points[n - 1]);\n",
              "    while (++i <= n) {\n",
              "      pi = points[i];\n",
              "      px.shift();\n",
              "      px.push(pi[0]);\n",
              "      py.shift();\n",
              "      py.push(pi[1]);\n",
              "      d3_svg_lineBasisBezier(path, px, py);\n",
              "    }\n",
              "    points.pop();\n",
              "    path.push(\"L\", pi);\n",
              "    return path.join(\"\");\n",
              "  }\n",
              "  function d3_svg_lineBasisOpen(points) {\n",
              "    if (points.length < 4) return d3_svg_lineLinear(points);\n",
              "    var path = [], i = -1, n = points.length, pi, px = [ 0 ], py = [ 0 ];\n",
              "    while (++i < 3) {\n",
              "      pi = points[i];\n",
              "      px.push(pi[0]);\n",
              "      py.push(pi[1]);\n",
              "    }\n",
              "    path.push(d3_svg_lineDot4(d3_svg_lineBasisBezier3, px) + \",\" + d3_svg_lineDot4(d3_svg_lineBasisBezier3, py));\n",
              "    --i;\n",
              "    while (++i < n) {\n",
              "      pi = points[i];\n",
              "      px.shift();\n",
              "      px.push(pi[0]);\n",
              "      py.shift();\n",
              "      py.push(pi[1]);\n",
              "      d3_svg_lineBasisBezier(path, px, py);\n",
              "    }\n",
              "    return path.join(\"\");\n",
              "  }\n",
              "  function d3_svg_lineBasisClosed(points) {\n",
              "    var path, i = -1, n = points.length, m = n + 4, pi, px = [], py = [];\n",
              "    while (++i < 4) {\n",
              "      pi = points[i % n];\n",
              "      px.push(pi[0]);\n",
              "      py.push(pi[1]);\n",
              "    }\n",
              "    path = [ d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), \",\", d3_svg_lineDot4(d3_svg_lineBasisBezier3, py) ];\n",
              "    --i;\n",
              "    while (++i < m) {\n",
              "      pi = points[i % n];\n",
              "      px.shift();\n",
              "      px.push(pi[0]);\n",
              "      py.shift();\n",
              "      py.push(pi[1]);\n",
              "      d3_svg_lineBasisBezier(path, px, py);\n",
              "    }\n",
              "    return path.join(\"\");\n",
              "  }\n",
              "  function d3_svg_lineBundle(points, tension) {\n",
              "    var n = points.length - 1;\n",
              "    if (n) {\n",
              "      var x0 = points[0][0], y0 = points[0][1], dx = points[n][0] - x0, dy = points[n][1] - y0, i = -1, p, t;\n",
              "      while (++i <= n) {\n",
              "        p = points[i];\n",
              "        t = i / n;\n",
              "        p[0] = tension * p[0] + (1 - tension) * (x0 + t * dx);\n",
              "        p[1] = tension * p[1] + (1 - tension) * (y0 + t * dy);\n",
              "      }\n",
              "    }\n",
              "    return d3_svg_lineBasis(points);\n",
              "  }\n",
              "  function d3_svg_lineDot4(a, b) {\n",
              "    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];\n",
              "  }\n",
              "  var d3_svg_lineBasisBezier1 = [ 0, 2 / 3, 1 / 3, 0 ], d3_svg_lineBasisBezier2 = [ 0, 1 / 3, 2 / 3, 0 ], d3_svg_lineBasisBezier3 = [ 0, 1 / 6, 2 / 3, 1 / 6 ];\n",
              "  function d3_svg_lineBasisBezier(path, x, y) {\n",
              "    path.push(\"C\", d3_svg_lineDot4(d3_svg_lineBasisBezier1, x), \",\", d3_svg_lineDot4(d3_svg_lineBasisBezier1, y), \",\", d3_svg_lineDot4(d3_svg_lineBasisBezier2, x), \",\", d3_svg_lineDot4(d3_svg_lineBasisBezier2, y), \",\", d3_svg_lineDot4(d3_svg_lineBasisBezier3, x), \",\", d3_svg_lineDot4(d3_svg_lineBasisBezier3, y));\n",
              "  }\n",
              "  function d3_svg_lineSlope(p0, p1) {\n",
              "    return (p1[1] - p0[1]) / (p1[0] - p0[0]);\n",
              "  }\n",
              "  function d3_svg_lineFiniteDifferences(points) {\n",
              "    var i = 0, j = points.length - 1, m = [], p0 = points[0], p1 = points[1], d = m[0] = d3_svg_lineSlope(p0, p1);\n",
              "    while (++i < j) {\n",
              "      m[i] = (d + (d = d3_svg_lineSlope(p0 = p1, p1 = points[i + 1]))) / 2;\n",
              "    }\n",
              "    m[i] = d;\n",
              "    return m;\n",
              "  }\n",
              "  function d3_svg_lineMonotoneTangents(points) {\n",
              "    var tangents = [], d, a, b, s, m = d3_svg_lineFiniteDifferences(points), i = -1, j = points.length - 1;\n",
              "    while (++i < j) {\n",
              "      d = d3_svg_lineSlope(points[i], points[i + 1]);\n",
              "      if (abs(d) < ε) {\n",
              "        m[i] = m[i + 1] = 0;\n",
              "      } else {\n",
              "        a = m[i] / d;\n",
              "        b = m[i + 1] / d;\n",
              "        s = a * a + b * b;\n",
              "        if (s > 9) {\n",
              "          s = d * 3 / Math.sqrt(s);\n",
              "          m[i] = s * a;\n",
              "          m[i + 1] = s * b;\n",
              "        }\n",
              "      }\n",
              "    }\n",
              "    i = -1;\n",
              "    while (++i <= j) {\n",
              "      s = (points[Math.min(j, i + 1)][0] - points[Math.max(0, i - 1)][0]) / (6 * (1 + m[i] * m[i]));\n",
              "      tangents.push([ s || 0, m[i] * s || 0 ]);\n",
              "    }\n",
              "    return tangents;\n",
              "  }\n",
              "  function d3_svg_lineMonotone(points) {\n",
              "    return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite(points, d3_svg_lineMonotoneTangents(points));\n",
              "  }\n",
              "  d3.svg.line.radial = function() {\n",
              "    var line = d3_svg_line(d3_svg_lineRadial);\n",
              "    line.radius = line.x, delete line.x;\n",
              "    line.angle = line.y, delete line.y;\n",
              "    return line;\n",
              "  };\n",
              "  function d3_svg_lineRadial(points) {\n",
              "    var point, i = -1, n = points.length, r, a;\n",
              "    while (++i < n) {\n",
              "      point = points[i];\n",
              "      r = point[0];\n",
              "      a = point[1] - halfπ;\n",
              "      point[0] = r * Math.cos(a);\n",
              "      point[1] = r * Math.sin(a);\n",
              "    }\n",
              "    return points;\n",
              "  }\n",
              "  function d3_svg_area(projection) {\n",
              "    var x0 = d3_geom_pointX, x1 = d3_geom_pointX, y0 = 0, y1 = d3_geom_pointY, defined = d3_true, interpolate = d3_svg_lineLinear, interpolateKey = interpolate.key, interpolateReverse = interpolate, L = \"L\", tension = .7;\n",
              "    function area(data) {\n",
              "      var segments = [], points0 = [], points1 = [], i = -1, n = data.length, d, fx0 = d3_functor(x0), fy0 = d3_functor(y0), fx1 = x0 === x1 ? function() {\n",
              "        return x;\n",
              "      } : d3_functor(x1), fy1 = y0 === y1 ? function() {\n",
              "        return y;\n",
              "      } : d3_functor(y1), x, y;\n",
              "      function segment() {\n",
              "        segments.push(\"M\", interpolate(projection(points1), tension), L, interpolateReverse(projection(points0.reverse()), tension), \"Z\");\n",
              "      }\n",
              "      while (++i < n) {\n",
              "        if (defined.call(this, d = data[i], i)) {\n",
              "          points0.push([ x = +fx0.call(this, d, i), y = +fy0.call(this, d, i) ]);\n",
              "          points1.push([ +fx1.call(this, d, i), +fy1.call(this, d, i) ]);\n",
              "        } else if (points0.length) {\n",
              "          segment();\n",
              "          points0 = [];\n",
              "          points1 = [];\n",
              "        }\n",
              "      }\n",
              "      if (points0.length) segment();\n",
              "      return segments.length ? segments.join(\"\") : null;\n",
              "    }\n",
              "    area.x = function(_) {\n",
              "      if (!arguments.length) return x1;\n",
              "      x0 = x1 = _;\n",
              "      return area;\n",
              "    };\n",
              "    area.x0 = function(_) {\n",
              "      if (!arguments.length) return x0;\n",
              "      x0 = _;\n",
              "      return area;\n",
              "    };\n",
              "    area.x1 = function(_) {\n",
              "      if (!arguments.length) return x1;\n",
              "      x1 = _;\n",
              "      return area;\n",
              "    };\n",
              "    area.y = function(_) {\n",
              "      if (!arguments.length) return y1;\n",
              "      y0 = y1 = _;\n",
              "      return area;\n",
              "    };\n",
              "    area.y0 = function(_) {\n",
              "      if (!arguments.length) return y0;\n",
              "      y0 = _;\n",
              "      return area;\n",
              "    };\n",
              "    area.y1 = function(_) {\n",
              "      if (!arguments.length) return y1;\n",
              "      y1 = _;\n",
              "      return area;\n",
              "    };\n",
              "    area.defined = function(_) {\n",
              "      if (!arguments.length) return defined;\n",
              "      defined = _;\n",
              "      return area;\n",
              "    };\n",
              "    area.interpolate = function(_) {\n",
              "      if (!arguments.length) return interpolateKey;\n",
              "      if (typeof _ === \"function\") interpolateKey = interpolate = _; else interpolateKey = (interpolate = d3_svg_lineInterpolators.get(_) || d3_svg_lineLinear).key;\n",
              "      interpolateReverse = interpolate.reverse || interpolate;\n",
              "      L = interpolate.closed ? \"M\" : \"L\";\n",
              "      return area;\n",
              "    };\n",
              "    area.tension = function(_) {\n",
              "      if (!arguments.length) return tension;\n",
              "      tension = _;\n",
              "      return area;\n",
              "    };\n",
              "    return area;\n",
              "  }\n",
              "  d3_svg_lineStepBefore.reverse = d3_svg_lineStepAfter;\n",
              "  d3_svg_lineStepAfter.reverse = d3_svg_lineStepBefore;\n",
              "  d3.svg.area = function() {\n",
              "    return d3_svg_area(d3_identity);\n",
              "  };\n",
              "  d3.svg.area.radial = function() {\n",
              "    var area = d3_svg_area(d3_svg_lineRadial);\n",
              "    area.radius = area.x, delete area.x;\n",
              "    area.innerRadius = area.x0, delete area.x0;\n",
              "    area.outerRadius = area.x1, delete area.x1;\n",
              "    area.angle = area.y, delete area.y;\n",
              "    area.startAngle = area.y0, delete area.y0;\n",
              "    area.endAngle = area.y1, delete area.y1;\n",
              "    return area;\n",
              "  };\n",
              "  d3.svg.chord = function() {\n",
              "    var source = d3_source, target = d3_target, radius = d3_svg_chordRadius, startAngle = d3_svg_arcStartAngle, endAngle = d3_svg_arcEndAngle;\n",
              "    function chord(d, i) {\n",
              "      var s = subgroup(this, source, d, i), t = subgroup(this, target, d, i);\n",
              "      return \"M\" + s.p0 + arc(s.r, s.p1, s.a1 - s.a0) + (equals(s, t) ? curve(s.r, s.p1, s.r, s.p0) : curve(s.r, s.p1, t.r, t.p0) + arc(t.r, t.p1, t.a1 - t.a0) + curve(t.r, t.p1, s.r, s.p0)) + \"Z\";\n",
              "    }\n",
              "    function subgroup(self, f, d, i) {\n",
              "      var subgroup = f.call(self, d, i), r = radius.call(self, subgroup, i), a0 = startAngle.call(self, subgroup, i) - halfπ, a1 = endAngle.call(self, subgroup, i) - halfπ;\n",
              "      return {\n",
              "        r: r,\n",
              "        a0: a0,\n",
              "        a1: a1,\n",
              "        p0: [ r * Math.cos(a0), r * Math.sin(a0) ],\n",
              "        p1: [ r * Math.cos(a1), r * Math.sin(a1) ]\n",
              "      };\n",
              "    }\n",
              "    function equals(a, b) {\n",
              "      return a.a0 == b.a0 && a.a1 == b.a1;\n",
              "    }\n",
              "    function arc(r, p, a) {\n",
              "      return \"A\" + r + \",\" + r + \" 0 \" + +(a > π) + \",1 \" + p;\n",
              "    }\n",
              "    function curve(r0, p0, r1, p1) {\n",
              "      return \"Q 0,0 \" + p1;\n",
              "    }\n",
              "    chord.radius = function(v) {\n",
              "      if (!arguments.length) return radius;\n",
              "      radius = d3_functor(v);\n",
              "      return chord;\n",
              "    };\n",
              "    chord.source = function(v) {\n",
              "      if (!arguments.length) return source;\n",
              "      source = d3_functor(v);\n",
              "      return chord;\n",
              "    };\n",
              "    chord.target = function(v) {\n",
              "      if (!arguments.length) return target;\n",
              "      target = d3_functor(v);\n",
              "      return chord;\n",
              "    };\n",
              "    chord.startAngle = function(v) {\n",
              "      if (!arguments.length) return startAngle;\n",
              "      startAngle = d3_functor(v);\n",
              "      return chord;\n",
              "    };\n",
              "    chord.endAngle = function(v) {\n",
              "      if (!arguments.length) return endAngle;\n",
              "      endAngle = d3_functor(v);\n",
              "      return chord;\n",
              "    };\n",
              "    return chord;\n",
              "  };\n",
              "  function d3_svg_chordRadius(d) {\n",
              "    return d.radius;\n",
              "  }\n",
              "  d3.svg.diagonal = function() {\n",
              "    var source = d3_source, target = d3_target, projection = d3_svg_diagonalProjection;\n",
              "    function diagonal(d, i) {\n",
              "      var p0 = source.call(this, d, i), p3 = target.call(this, d, i), m = (p0.y + p3.y) / 2, p = [ p0, {\n",
              "        x: p0.x,\n",
              "        y: m\n",
              "      }, {\n",
              "        x: p3.x,\n",
              "        y: m\n",
              "      }, p3 ];\n",
              "      p = p.map(projection);\n",
              "      return \"M\" + p[0] + \"C\" + p[1] + \" \" + p[2] + \" \" + p[3];\n",
              "    }\n",
              "    diagonal.source = function(x) {\n",
              "      if (!arguments.length) return source;\n",
              "      source = d3_functor(x);\n",
              "      return diagonal;\n",
              "    };\n",
              "    diagonal.target = function(x) {\n",
              "      if (!arguments.length) return target;\n",
              "      target = d3_functor(x);\n",
              "      return diagonal;\n",
              "    };\n",
              "    diagonal.projection = function(x) {\n",
              "      if (!arguments.length) return projection;\n",
              "      projection = x;\n",
              "      return diagonal;\n",
              "    };\n",
              "    return diagonal;\n",
              "  };\n",
              "  function d3_svg_diagonalProjection(d) {\n",
              "    return [ d.x, d.y ];\n",
              "  }\n",
              "  d3.svg.diagonal.radial = function() {\n",
              "    var diagonal = d3.svg.diagonal(), projection = d3_svg_diagonalProjection, projection_ = diagonal.projection;\n",
              "    diagonal.projection = function(x) {\n",
              "      return arguments.length ? projection_(d3_svg_diagonalRadialProjection(projection = x)) : projection;\n",
              "    };\n",
              "    return diagonal;\n",
              "  };\n",
              "  function d3_svg_diagonalRadialProjection(projection) {\n",
              "    return function() {\n",
              "      var d = projection.apply(this, arguments), r = d[0], a = d[1] - halfπ;\n",
              "      return [ r * Math.cos(a), r * Math.sin(a) ];\n",
              "    };\n",
              "  }\n",
              "  d3.svg.symbol = function() {\n",
              "    var type = d3_svg_symbolType, size = d3_svg_symbolSize;\n",
              "    function symbol(d, i) {\n",
              "      return (d3_svg_symbols.get(type.call(this, d, i)) || d3_svg_symbolCircle)(size.call(this, d, i));\n",
              "    }\n",
              "    symbol.type = function(x) {\n",
              "      if (!arguments.length) return type;\n",
              "      type = d3_functor(x);\n",
              "      return symbol;\n",
              "    };\n",
              "    symbol.size = function(x) {\n",
              "      if (!arguments.length) return size;\n",
              "      size = d3_functor(x);\n",
              "      return symbol;\n",
              "    };\n",
              "    return symbol;\n",
              "  };\n",
              "  function d3_svg_symbolSize() {\n",
              "    return 64;\n",
              "  }\n",
              "  function d3_svg_symbolType() {\n",
              "    return \"circle\";\n",
              "  }\n",
              "  function d3_svg_symbolCircle(size) {\n",
              "    var r = Math.sqrt(size / π);\n",
              "    return \"M0,\" + r + \"A\" + r + \",\" + r + \" 0 1,1 0,\" + -r + \"A\" + r + \",\" + r + \" 0 1,1 0,\" + r + \"Z\";\n",
              "  }\n",
              "  var d3_svg_symbols = d3.map({\n",
              "    circle: d3_svg_symbolCircle,\n",
              "    cross: function(size) {\n",
              "      var r = Math.sqrt(size / 5) / 2;\n",
              "      return \"M\" + -3 * r + \",\" + -r + \"H\" + -r + \"V\" + -3 * r + \"H\" + r + \"V\" + -r + \"H\" + 3 * r + \"V\" + r + \"H\" + r + \"V\" + 3 * r + \"H\" + -r + \"V\" + r + \"H\" + -3 * r + \"Z\";\n",
              "    },\n",
              "    diamond: function(size) {\n",
              "      var ry = Math.sqrt(size / (2 * d3_svg_symbolTan30)), rx = ry * d3_svg_symbolTan30;\n",
              "      return \"M0,\" + -ry + \"L\" + rx + \",0\" + \" 0,\" + ry + \" \" + -rx + \",0\" + \"Z\";\n",
              "    },\n",
              "    square: function(size) {\n",
              "      var r = Math.sqrt(size) / 2;\n",
              "      return \"M\" + -r + \",\" + -r + \"L\" + r + \",\" + -r + \" \" + r + \",\" + r + \" \" + -r + \",\" + r + \"Z\";\n",
              "    },\n",
              "    \"triangle-down\": function(size) {\n",
              "      var rx = Math.sqrt(size / d3_svg_symbolSqrt3), ry = rx * d3_svg_symbolSqrt3 / 2;\n",
              "      return \"M0,\" + ry + \"L\" + rx + \",\" + -ry + \" \" + -rx + \",\" + -ry + \"Z\";\n",
              "    },\n",
              "    \"triangle-up\": function(size) {\n",
              "      var rx = Math.sqrt(size / d3_svg_symbolSqrt3), ry = rx * d3_svg_symbolSqrt3 / 2;\n",
              "      return \"M0,\" + -ry + \"L\" + rx + \",\" + ry + \" \" + -rx + \",\" + ry + \"Z\";\n",
              "    }\n",
              "  });\n",
              "  d3.svg.symbolTypes = d3_svg_symbols.keys();\n",
              "  var d3_svg_symbolSqrt3 = Math.sqrt(3), d3_svg_symbolTan30 = Math.tan(30 * d3_radians);\n",
              "  d3_selectionPrototype.transition = function(name) {\n",
              "    var id = d3_transitionInheritId || ++d3_transitionId, ns = d3_transitionNamespace(name), subgroups = [], subgroup, node, transition = d3_transitionInherit || {\n",
              "      time: Date.now(),\n",
              "      ease: d3_ease_cubicInOut,\n",
              "      delay: 0,\n",
              "      duration: 250\n",
              "    };\n",
              "    for (var j = -1, m = this.length; ++j < m; ) {\n",
              "      subgroups.push(subgroup = []);\n",
              "      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {\n",
              "        if (node = group[i]) d3_transitionNode(node, i, ns, id, transition);\n",
              "        subgroup.push(node);\n",
              "      }\n",
              "    }\n",
              "    return d3_transition(subgroups, ns, id);\n",
              "  };\n",
              "  d3_selectionPrototype.interrupt = function(name) {\n",
              "    return this.each(name == null ? d3_selection_interrupt : d3_selection_interruptNS(d3_transitionNamespace(name)));\n",
              "  };\n",
              "  var d3_selection_interrupt = d3_selection_interruptNS(d3_transitionNamespace());\n",
              "  function d3_selection_interruptNS(ns) {\n",
              "    return function() {\n",
              "      var lock, activeId, active;\n",
              "      if ((lock = this[ns]) && (active = lock[activeId = lock.active])) {\n",
              "        active.timer.c = null;\n",
              "        active.timer.t = NaN;\n",
              "        if (--lock.count) delete lock[activeId]; else delete this[ns];\n",
              "        lock.active += .5;\n",
              "        active.event && active.event.interrupt.call(this, this.__data__, active.index);\n",
              "      }\n",
              "    };\n",
              "  }\n",
              "  function d3_transition(groups, ns, id) {\n",
              "    d3_subclass(groups, d3_transitionPrototype);\n",
              "    groups.namespace = ns;\n",
              "    groups.id = id;\n",
              "    return groups;\n",
              "  }\n",
              "  var d3_transitionPrototype = [], d3_transitionId = 0, d3_transitionInheritId, d3_transitionInherit;\n",
              "  d3_transitionPrototype.call = d3_selectionPrototype.call;\n",
              "  d3_transitionPrototype.empty = d3_selectionPrototype.empty;\n",
              "  d3_transitionPrototype.node = d3_selectionPrototype.node;\n",
              "  d3_transitionPrototype.size = d3_selectionPrototype.size;\n",
              "  d3.transition = function(selection, name) {\n",
              "    return selection && selection.transition ? d3_transitionInheritId ? selection.transition(name) : selection : d3.selection().transition(selection);\n",
              "  };\n",
              "  d3.transition.prototype = d3_transitionPrototype;\n",
              "  d3_transitionPrototype.select = function(selector) {\n",
              "    var id = this.id, ns = this.namespace, subgroups = [], subgroup, subnode, node;\n",
              "    selector = d3_selection_selector(selector);\n",
              "    for (var j = -1, m = this.length; ++j < m; ) {\n",
              "      subgroups.push(subgroup = []);\n",
              "      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {\n",
              "        if ((node = group[i]) && (subnode = selector.call(node, node.__data__, i, j))) {\n",
              "          if (\"__data__\" in node) subnode.__data__ = node.__data__;\n",
              "          d3_transitionNode(subnode, i, ns, id, node[ns][id]);\n",
              "          subgroup.push(subnode);\n",
              "        } else {\n",
              "          subgroup.push(null);\n",
              "        }\n",
              "      }\n",
              "    }\n",
              "    return d3_transition(subgroups, ns, id);\n",
              "  };\n",
              "  d3_transitionPrototype.selectAll = function(selector) {\n",
              "    var id = this.id, ns = this.namespace, subgroups = [], subgroup, subnodes, node, subnode, transition;\n",
              "    selector = d3_selection_selectorAll(selector);\n",
              "    for (var j = -1, m = this.length; ++j < m; ) {\n",
              "      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {\n",
              "        if (node = group[i]) {\n",
              "          transition = node[ns][id];\n",
              "          subnodes = selector.call(node, node.__data__, i, j);\n",
              "          subgroups.push(subgroup = []);\n",
              "          for (var k = -1, o = subnodes.length; ++k < o; ) {\n",
              "            if (subnode = subnodes[k]) d3_transitionNode(subnode, k, ns, id, transition);\n",
              "            subgroup.push(subnode);\n",
              "          }\n",
              "        }\n",
              "      }\n",
              "    }\n",
              "    return d3_transition(subgroups, ns, id);\n",
              "  };\n",
              "  d3_transitionPrototype.filter = function(filter) {\n",
              "    var subgroups = [], subgroup, group, node;\n",
              "    if (typeof filter !== \"function\") filter = d3_selection_filter(filter);\n",
              "    for (var j = 0, m = this.length; j < m; j++) {\n",
              "      subgroups.push(subgroup = []);\n",
              "      for (var group = this[j], i = 0, n = group.length; i < n; i++) {\n",
              "        if ((node = group[i]) && filter.call(node, node.__data__, i, j)) {\n",
              "          subgroup.push(node);\n",
              "        }\n",
              "      }\n",
              "    }\n",
              "    return d3_transition(subgroups, this.namespace, this.id);\n",
              "  };\n",
              "  d3_transitionPrototype.tween = function(name, tween) {\n",
              "    var id = this.id, ns = this.namespace;\n",
              "    if (arguments.length < 2) return this.node()[ns][id].tween.get(name);\n",
              "    return d3_selection_each(this, tween == null ? function(node) {\n",
              "      node[ns][id].tween.remove(name);\n",
              "    } : function(node) {\n",
              "      node[ns][id].tween.set(name, tween);\n",
              "    });\n",
              "  };\n",
              "  function d3_transition_tween(groups, name, value, tween) {\n",
              "    var id = groups.id, ns = groups.namespace;\n",
              "    return d3_selection_each(groups, typeof value === \"function\" ? function(node, i, j) {\n",
              "      node[ns][id].tween.set(name, tween(value.call(node, node.__data__, i, j)));\n",
              "    } : (value = tween(value), function(node) {\n",
              "      node[ns][id].tween.set(name, value);\n",
              "    }));\n",
              "  }\n",
              "  d3_transitionPrototype.attr = function(nameNS, value) {\n",
              "    if (arguments.length < 2) {\n",
              "      for (value in nameNS) this.attr(value, nameNS[value]);\n",
              "      return this;\n",
              "    }\n",
              "    var interpolate = nameNS == \"transform\" ? d3_interpolateTransform : d3_interpolate, name = d3.ns.qualify(nameNS);\n",
              "    function attrNull() {\n",
              "      this.removeAttribute(name);\n",
              "    }\n",
              "    function attrNullNS() {\n",
              "      this.removeAttributeNS(name.space, name.local);\n",
              "    }\n",
              "    function attrTween(b) {\n",
              "      return b == null ? attrNull : (b += \"\", function() {\n",
              "        var a = this.getAttribute(name), i;\n",
              "        return a !== b && (i = interpolate(a, b), function(t) {\n",
              "          this.setAttribute(name, i(t));\n",
              "        });\n",
              "      });\n",
              "    }\n",
              "    function attrTweenNS(b) {\n",
              "      return b == null ? attrNullNS : (b += \"\", function() {\n",
              "        var a = this.getAttributeNS(name.space, name.local), i;\n",
              "        return a !== b && (i = interpolate(a, b), function(t) {\n",
              "          this.setAttributeNS(name.space, name.local, i(t));\n",
              "        });\n",
              "      });\n",
              "    }\n",
              "    return d3_transition_tween(this, \"attr.\" + nameNS, value, name.local ? attrTweenNS : attrTween);\n",
              "  };\n",
              "  d3_transitionPrototype.attrTween = function(nameNS, tween) {\n",
              "    var name = d3.ns.qualify(nameNS);\n",
              "    function attrTween(d, i) {\n",
              "      var f = tween.call(this, d, i, this.getAttribute(name));\n",
              "      return f && function(t) {\n",
              "        this.setAttribute(name, f(t));\n",
              "      };\n",
              "    }\n",
              "    function attrTweenNS(d, i) {\n",
              "      var f = tween.call(this, d, i, this.getAttributeNS(name.space, name.local));\n",
              "      return f && function(t) {\n",
              "        this.setAttributeNS(name.space, name.local, f(t));\n",
              "      };\n",
              "    }\n",
              "    return this.tween(\"attr.\" + nameNS, name.local ? attrTweenNS : attrTween);\n",
              "  };\n",
              "  d3_transitionPrototype.style = function(name, value, priority) {\n",
              "    var n = arguments.length;\n",
              "    if (n < 3) {\n",
              "      if (typeof name !== \"string\") {\n",
              "        if (n < 2) value = \"\";\n",
              "        for (priority in name) this.style(priority, name[priority], value);\n",
              "        return this;\n",
              "      }\n",
              "      priority = \"\";\n",
              "    }\n",
              "    function styleNull() {\n",
              "      this.style.removeProperty(name);\n",
              "    }\n",
              "    function styleString(b) {\n",
              "      return b == null ? styleNull : (b += \"\", function() {\n",
              "        var a = d3_window(this).getComputedStyle(this, null).getPropertyValue(name), i;\n",
              "        return a !== b && (i = d3_interpolate(a, b), function(t) {\n",
              "          this.style.setProperty(name, i(t), priority);\n",
              "        });\n",
              "      });\n",
              "    }\n",
              "    return d3_transition_tween(this, \"style.\" + name, value, styleString);\n",
              "  };\n",
              "  d3_transitionPrototype.styleTween = function(name, tween, priority) {\n",
              "    if (arguments.length < 3) priority = \"\";\n",
              "    function styleTween(d, i) {\n",
              "      var f = tween.call(this, d, i, d3_window(this).getComputedStyle(this, null).getPropertyValue(name));\n",
              "      return f && function(t) {\n",
              "        this.style.setProperty(name, f(t), priority);\n",
              "      };\n",
              "    }\n",
              "    return this.tween(\"style.\" + name, styleTween);\n",
              "  };\n",
              "  d3_transitionPrototype.text = function(value) {\n",
              "    return d3_transition_tween(this, \"text\", value, d3_transition_text);\n",
              "  };\n",
              "  function d3_transition_text(b) {\n",
              "    if (b == null) b = \"\";\n",
              "    return function() {\n",
              "      this.textContent = b;\n",
              "    };\n",
              "  }\n",
              "  d3_transitionPrototype.remove = function() {\n",
              "    var ns = this.namespace;\n",
              "    return this.each(\"end.transition\", function() {\n",
              "      var p;\n",
              "      if (this[ns].count < 2 && (p = this.parentNode)) p.removeChild(this);\n",
              "    });\n",
              "  };\n",
              "  d3_transitionPrototype.ease = function(value) {\n",
              "    var id = this.id, ns = this.namespace;\n",
              "    if (arguments.length < 1) return this.node()[ns][id].ease;\n",
              "    if (typeof value !== \"function\") value = d3.ease.apply(d3, arguments);\n",
              "    return d3_selection_each(this, function(node) {\n",
              "      node[ns][id].ease = value;\n",
              "    });\n",
              "  };\n",
              "  d3_transitionPrototype.delay = function(value) {\n",
              "    var id = this.id, ns = this.namespace;\n",
              "    if (arguments.length < 1) return this.node()[ns][id].delay;\n",
              "    return d3_selection_each(this, typeof value === \"function\" ? function(node, i, j) {\n",
              "      node[ns][id].delay = +value.call(node, node.__data__, i, j);\n",
              "    } : (value = +value, function(node) {\n",
              "      node[ns][id].delay = value;\n",
              "    }));\n",
              "  };\n",
              "  d3_transitionPrototype.duration = function(value) {\n",
              "    var id = this.id, ns = this.namespace;\n",
              "    if (arguments.length < 1) return this.node()[ns][id].duration;\n",
              "    return d3_selection_each(this, typeof value === \"function\" ? function(node, i, j) {\n",
              "      node[ns][id].duration = Math.max(1, value.call(node, node.__data__, i, j));\n",
              "    } : (value = Math.max(1, value), function(node) {\n",
              "      node[ns][id].duration = value;\n",
              "    }));\n",
              "  };\n",
              "  d3_transitionPrototype.each = function(type, listener) {\n",
              "    var id = this.id, ns = this.namespace;\n",
              "    if (arguments.length < 2) {\n",
              "      var inherit = d3_transitionInherit, inheritId = d3_transitionInheritId;\n",
              "      try {\n",
              "        d3_transitionInheritId = id;\n",
              "        d3_selection_each(this, function(node, i, j) {\n",
              "          d3_transitionInherit = node[ns][id];\n",
              "          type.call(node, node.__data__, i, j);\n",
              "        });\n",
              "      } finally {\n",
              "        d3_transitionInherit = inherit;\n",
              "        d3_transitionInheritId = inheritId;\n",
              "      }\n",
              "    } else {\n",
              "      d3_selection_each(this, function(node) {\n",
              "        var transition = node[ns][id];\n",
              "        (transition.event || (transition.event = d3.dispatch(\"start\", \"end\", \"interrupt\"))).on(type, listener);\n",
              "      });\n",
              "    }\n",
              "    return this;\n",
              "  };\n",
              "  d3_transitionPrototype.transition = function() {\n",
              "    var id0 = this.id, id1 = ++d3_transitionId, ns = this.namespace, subgroups = [], subgroup, group, node, transition;\n",
              "    for (var j = 0, m = this.length; j < m; j++) {\n",
              "      subgroups.push(subgroup = []);\n",
              "      for (var group = this[j], i = 0, n = group.length; i < n; i++) {\n",
              "        if (node = group[i]) {\n",
              "          transition = node[ns][id0];\n",
              "          d3_transitionNode(node, i, ns, id1, {\n",
              "            time: transition.time,\n",
              "            ease: transition.ease,\n",
              "            delay: transition.delay + transition.duration,\n",
              "            duration: transition.duration\n",
              "          });\n",
              "        }\n",
              "        subgroup.push(node);\n",
              "      }\n",
              "    }\n",
              "    return d3_transition(subgroups, ns, id1);\n",
              "  };\n",
              "  function d3_transitionNamespace(name) {\n",
              "    return name == null ? \"__transition__\" : \"__transition_\" + name + \"__\";\n",
              "  }\n",
              "  function d3_transitionNode(node, i, ns, id, inherit) {\n",
              "    var lock = node[ns] || (node[ns] = {\n",
              "      active: 0,\n",
              "      count: 0\n",
              "    }), transition = lock[id], time, timer, duration, ease, tweens;\n",
              "    function schedule(elapsed) {\n",
              "      var delay = transition.delay;\n",
              "      timer.t = delay + time;\n",
              "      if (delay <= elapsed) return start(elapsed - delay);\n",
              "      timer.c = start;\n",
              "    }\n",
              "    function start(elapsed) {\n",
              "      var activeId = lock.active, active = lock[activeId];\n",
              "      if (active) {\n",
              "        active.timer.c = null;\n",
              "        active.timer.t = NaN;\n",
              "        --lock.count;\n",
              "        delete lock[activeId];\n",
              "        active.event && active.event.interrupt.call(node, node.__data__, active.index);\n",
              "      }\n",
              "      for (var cancelId in lock) {\n",
              "        if (+cancelId < id) {\n",
              "          var cancel = lock[cancelId];\n",
              "          cancel.timer.c = null;\n",
              "          cancel.timer.t = NaN;\n",
              "          --lock.count;\n",
              "          delete lock[cancelId];\n",
              "        }\n",
              "      }\n",
              "      timer.c = tick;\n",
              "      d3_timer(function() {\n",
              "        if (timer.c && tick(elapsed || 1)) {\n",
              "          timer.c = null;\n",
              "          timer.t = NaN;\n",
              "        }\n",
              "        return 1;\n",
              "      }, 0, time);\n",
              "      lock.active = id;\n",
              "      transition.event && transition.event.start.call(node, node.__data__, i);\n",
              "      tweens = [];\n",
              "      transition.tween.forEach(function(key, value) {\n",
              "        if (value = value.call(node, node.__data__, i)) {\n",
              "          tweens.push(value);\n",
              "        }\n",
              "      });\n",
              "      ease = transition.ease;\n",
              "      duration = transition.duration;\n",
              "    }\n",
              "    function tick(elapsed) {\n",
              "      var t = elapsed / duration, e = ease(t), n = tweens.length;\n",
              "      while (n > 0) {\n",
              "        tweens[--n].call(node, e);\n",
              "      }\n",
              "      if (t >= 1) {\n",
              "        transition.event && transition.event.end.call(node, node.__data__, i);\n",
              "        if (--lock.count) delete lock[id]; else delete node[ns];\n",
              "        return 1;\n",
              "      }\n",
              "    }\n",
              "    if (!transition) {\n",
              "      time = inherit.time;\n",
              "      timer = d3_timer(schedule, 0, time);\n",
              "      transition = lock[id] = {\n",
              "        tween: new d3_Map(),\n",
              "        time: time,\n",
              "        timer: timer,\n",
              "        delay: inherit.delay,\n",
              "        duration: inherit.duration,\n",
              "        ease: inherit.ease,\n",
              "        index: i\n",
              "      };\n",
              "      inherit = null;\n",
              "      ++lock.count;\n",
              "    }\n",
              "  }\n",
              "  d3.svg.axis = function() {\n",
              "    var scale = d3.scale.linear(), orient = d3_svg_axisDefaultOrient, innerTickSize = 6, outerTickSize = 6, tickPadding = 3, tickArguments_ = [ 10 ], tickValues = null, tickFormat_;\n",
              "    function axis(g) {\n",
              "      g.each(function() {\n",
              "        var g = d3.select(this);\n",
              "        var scale0 = this.__chart__ || scale, scale1 = this.__chart__ = scale.copy();\n",
              "        var ticks = tickValues == null ? scale1.ticks ? scale1.ticks.apply(scale1, tickArguments_) : scale1.domain() : tickValues, tickFormat = tickFormat_ == null ? scale1.tickFormat ? scale1.tickFormat.apply(scale1, tickArguments_) : d3_identity : tickFormat_, tick = g.selectAll(\".tick\").data(ticks, scale1), tickEnter = tick.enter().insert(\"g\", \".domain\").attr(\"class\", \"tick\").style(\"opacity\", ε), tickExit = d3.transition(tick.exit()).style(\"opacity\", ε).remove(), tickUpdate = d3.transition(tick.order()).style(\"opacity\", 1), tickSpacing = Math.max(innerTickSize, 0) + tickPadding, tickTransform;\n",
              "        var range = d3_scaleRange(scale1), path = g.selectAll(\".domain\").data([ 0 ]), pathUpdate = (path.enter().append(\"path\").attr(\"class\", \"domain\"), \n",
              "        d3.transition(path));\n",
              "        tickEnter.append(\"line\");\n",
              "        tickEnter.append(\"text\");\n",
              "        var lineEnter = tickEnter.select(\"line\"), lineUpdate = tickUpdate.select(\"line\"), text = tick.select(\"text\").text(tickFormat), textEnter = tickEnter.select(\"text\"), textUpdate = tickUpdate.select(\"text\"), sign = orient === \"top\" || orient === \"left\" ? -1 : 1, x1, x2, y1, y2;\n",
              "        if (orient === \"bottom\" || orient === \"top\") {\n",
              "          tickTransform = d3_svg_axisX, x1 = \"x\", y1 = \"y\", x2 = \"x2\", y2 = \"y2\";\n",
              "          text.attr(\"dy\", sign < 0 ? \"0em\" : \".71em\").style(\"text-anchor\", \"middle\");\n",
              "          pathUpdate.attr(\"d\", \"M\" + range[0] + \",\" + sign * outerTickSize + \"V0H\" + range[1] + \"V\" + sign * outerTickSize);\n",
              "        } else {\n",
              "          tickTransform = d3_svg_axisY, x1 = \"y\", y1 = \"x\", x2 = \"y2\", y2 = \"x2\";\n",
              "          text.attr(\"dy\", \".32em\").style(\"text-anchor\", sign < 0 ? \"end\" : \"start\");\n",
              "          pathUpdate.attr(\"d\", \"M\" + sign * outerTickSize + \",\" + range[0] + \"H0V\" + range[1] + \"H\" + sign * outerTickSize);\n",
              "        }\n",
              "        lineEnter.attr(y2, sign * innerTickSize);\n",
              "        textEnter.attr(y1, sign * tickSpacing);\n",
              "        lineUpdate.attr(x2, 0).attr(y2, sign * innerTickSize);\n",
              "        textUpdate.attr(x1, 0).attr(y1, sign * tickSpacing);\n",
              "        if (scale1.rangeBand) {\n",
              "          var x = scale1, dx = x.rangeBand() / 2;\n",
              "          scale0 = scale1 = function(d) {\n",
              "            return x(d) + dx;\n",
              "          };\n",
              "        } else if (scale0.rangeBand) {\n",
              "          scale0 = scale1;\n",
              "        } else {\n",
              "          tickExit.call(tickTransform, scale1, scale0);\n",
              "        }\n",
              "        tickEnter.call(tickTransform, scale0, scale1);\n",
              "        tickUpdate.call(tickTransform, scale1, scale1);\n",
              "      });\n",
              "    }\n",
              "    axis.scale = function(x) {\n",
              "      if (!arguments.length) return scale;\n",
              "      scale = x;\n",
              "      return axis;\n",
              "    };\n",
              "    axis.orient = function(x) {\n",
              "      if (!arguments.length) return orient;\n",
              "      orient = x in d3_svg_axisOrients ? x + \"\" : d3_svg_axisDefaultOrient;\n",
              "      return axis;\n",
              "    };\n",
              "    axis.ticks = function() {\n",
              "      if (!arguments.length) return tickArguments_;\n",
              "      tickArguments_ = d3_array(arguments);\n",
              "      return axis;\n",
              "    };\n",
              "    axis.tickValues = function(x) {\n",
              "      if (!arguments.length) return tickValues;\n",
              "      tickValues = x;\n",
              "      return axis;\n",
              "    };\n",
              "    axis.tickFormat = function(x) {\n",
              "      if (!arguments.length) return tickFormat_;\n",
              "      tickFormat_ = x;\n",
              "      return axis;\n",
              "    };\n",
              "    axis.tickSize = function(x) {\n",
              "      var n = arguments.length;\n",
              "      if (!n) return innerTickSize;\n",
              "      innerTickSize = +x;\n",
              "      outerTickSize = +arguments[n - 1];\n",
              "      return axis;\n",
              "    };\n",
              "    axis.innerTickSize = function(x) {\n",
              "      if (!arguments.length) return innerTickSize;\n",
              "      innerTickSize = +x;\n",
              "      return axis;\n",
              "    };\n",
              "    axis.outerTickSize = function(x) {\n",
              "      if (!arguments.length) return outerTickSize;\n",
              "      outerTickSize = +x;\n",
              "      return axis;\n",
              "    };\n",
              "    axis.tickPadding = function(x) {\n",
              "      if (!arguments.length) return tickPadding;\n",
              "      tickPadding = +x;\n",
              "      return axis;\n",
              "    };\n",
              "    axis.tickSubdivide = function() {\n",
              "      return arguments.length && axis;\n",
              "    };\n",
              "    return axis;\n",
              "  };\n",
              "  var d3_svg_axisDefaultOrient = \"bottom\", d3_svg_axisOrients = {\n",
              "    top: 1,\n",
              "    right: 1,\n",
              "    bottom: 1,\n",
              "    left: 1\n",
              "  };\n",
              "  function d3_svg_axisX(selection, x0, x1) {\n",
              "    selection.attr(\"transform\", function(d) {\n",
              "      var v0 = x0(d);\n",
              "      return \"translate(\" + (isFinite(v0) ? v0 : x1(d)) + \",0)\";\n",
              "    });\n",
              "  }\n",
              "  function d3_svg_axisY(selection, y0, y1) {\n",
              "    selection.attr(\"transform\", function(d) {\n",
              "      var v0 = y0(d);\n",
              "      return \"translate(0,\" + (isFinite(v0) ? v0 : y1(d)) + \")\";\n",
              "    });\n",
              "  }\n",
              "  d3.svg.brush = function() {\n",
              "    var event = d3_eventDispatch(brush, \"brushstart\", \"brush\", \"brushend\"), x = null, y = null, xExtent = [ 0, 0 ], yExtent = [ 0, 0 ], xExtentDomain, yExtentDomain, xClamp = true, yClamp = true, resizes = d3_svg_brushResizes[0];\n",
              "    function brush(g) {\n",
              "      g.each(function() {\n",
              "        var g = d3.select(this).style(\"pointer-events\", \"all\").style(\"-webkit-tap-highlight-color\", \"rgba(0,0,0,0)\").on(\"mousedown.brush\", brushstart).on(\"touchstart.brush\", brushstart);\n",
              "        var background = g.selectAll(\".background\").data([ 0 ]);\n",
              "        background.enter().append(\"rect\").attr(\"class\", \"background\").style(\"visibility\", \"hidden\").style(\"cursor\", \"crosshair\");\n",
              "        g.selectAll(\".extent\").data([ 0 ]).enter().append(\"rect\").attr(\"class\", \"extent\").style(\"cursor\", \"move\");\n",
              "        var resize = g.selectAll(\".resize\").data(resizes, d3_identity);\n",
              "        resize.exit().remove();\n",
              "        resize.enter().append(\"g\").attr(\"class\", function(d) {\n",
              "          return \"resize \" + d;\n",
              "        }).style(\"cursor\", function(d) {\n",
              "          return d3_svg_brushCursor[d];\n",
              "        }).append(\"rect\").attr(\"x\", function(d) {\n",
              "          return /[ew]$/.test(d) ? -3 : null;\n",
              "        }).attr(\"y\", function(d) {\n",
              "          return /^[ns]/.test(d) ? -3 : null;\n",
              "        }).attr(\"width\", 6).attr(\"height\", 6).style(\"visibility\", \"hidden\");\n",
              "        resize.style(\"display\", brush.empty() ? \"none\" : null);\n",
              "        var gUpdate = d3.transition(g), backgroundUpdate = d3.transition(background), range;\n",
              "        if (x) {\n",
              "          range = d3_scaleRange(x);\n",
              "          backgroundUpdate.attr(\"x\", range[0]).attr(\"width\", range[1] - range[0]);\n",
              "          redrawX(gUpdate);\n",
              "        }\n",
              "        if (y) {\n",
              "          range = d3_scaleRange(y);\n",
              "          backgroundUpdate.attr(\"y\", range[0]).attr(\"height\", range[1] - range[0]);\n",
              "          redrawY(gUpdate);\n",
              "        }\n",
              "        redraw(gUpdate);\n",
              "      });\n",
              "    }\n",
              "    brush.event = function(g) {\n",
              "      g.each(function() {\n",
              "        var event_ = event.of(this, arguments), extent1 = {\n",
              "          x: xExtent,\n",
              "          y: yExtent,\n",
              "          i: xExtentDomain,\n",
              "          j: yExtentDomain\n",
              "        }, extent0 = this.__chart__ || extent1;\n",
              "        this.__chart__ = extent1;\n",
              "        if (d3_transitionInheritId) {\n",
              "          d3.select(this).transition().each(\"start.brush\", function() {\n",
              "            xExtentDomain = extent0.i;\n",
              "            yExtentDomain = extent0.j;\n",
              "            xExtent = extent0.x;\n",
              "            yExtent = extent0.y;\n",
              "            event_({\n",
              "              type: \"brushstart\"\n",
              "            });\n",
              "          }).tween(\"brush:brush\", function() {\n",
              "            var xi = d3_interpolateArray(xExtent, extent1.x), yi = d3_interpolateArray(yExtent, extent1.y);\n",
              "            xExtentDomain = yExtentDomain = null;\n",
              "            return function(t) {\n",
              "              xExtent = extent1.x = xi(t);\n",
              "              yExtent = extent1.y = yi(t);\n",
              "              event_({\n",
              "                type: \"brush\",\n",
              "                mode: \"resize\"\n",
              "              });\n",
              "            };\n",
              "          }).each(\"end.brush\", function() {\n",
              "            xExtentDomain = extent1.i;\n",
              "            yExtentDomain = extent1.j;\n",
              "            event_({\n",
              "              type: \"brush\",\n",
              "              mode: \"resize\"\n",
              "            });\n",
              "            event_({\n",
              "              type: \"brushend\"\n",
              "            });\n",
              "          });\n",
              "        } else {\n",
              "          event_({\n",
              "            type: \"brushstart\"\n",
              "          });\n",
              "          event_({\n",
              "            type: \"brush\",\n",
              "            mode: \"resize\"\n",
              "          });\n",
              "          event_({\n",
              "            type: \"brushend\"\n",
              "          });\n",
              "        }\n",
              "      });\n",
              "    };\n",
              "    function redraw(g) {\n",
              "      g.selectAll(\".resize\").attr(\"transform\", function(d) {\n",
              "        return \"translate(\" + xExtent[+/e$/.test(d)] + \",\" + yExtent[+/^s/.test(d)] + \")\";\n",
              "      });\n",
              "    }\n",
              "    function redrawX(g) {\n",
              "      g.select(\".extent\").attr(\"x\", xExtent[0]);\n",
              "      g.selectAll(\".extent,.n>rect,.s>rect\").attr(\"width\", xExtent[1] - xExtent[0]);\n",
              "    }\n",
              "    function redrawY(g) {\n",
              "      g.select(\".extent\").attr(\"y\", yExtent[0]);\n",
              "      g.selectAll(\".extent,.e>rect,.w>rect\").attr(\"height\", yExtent[1] - yExtent[0]);\n",
              "    }\n",
              "    function brushstart() {\n",
              "      var target = this, eventTarget = d3.select(d3.event.target), event_ = event.of(target, arguments), g = d3.select(target), resizing = eventTarget.datum(), resizingX = !/^(n|s)$/.test(resizing) && x, resizingY = !/^(e|w)$/.test(resizing) && y, dragging = eventTarget.classed(\"extent\"), dragRestore = d3_event_dragSuppress(target), center, origin = d3.mouse(target), offset;\n",
              "      var w = d3.select(d3_window(target)).on(\"keydown.brush\", keydown).on(\"keyup.brush\", keyup);\n",
              "      if (d3.event.changedTouches) {\n",
              "        w.on(\"touchmove.brush\", brushmove).on(\"touchend.brush\", brushend);\n",
              "      } else {\n",
              "        w.on(\"mousemove.brush\", brushmove).on(\"mouseup.brush\", brushend);\n",
              "      }\n",
              "      g.interrupt().selectAll(\"*\").interrupt();\n",
              "      if (dragging) {\n",
              "        origin[0] = xExtent[0] - origin[0];\n",
              "        origin[1] = yExtent[0] - origin[1];\n",
              "      } else if (resizing) {\n",
              "        var ex = +/w$/.test(resizing), ey = +/^n/.test(resizing);\n",
              "        offset = [ xExtent[1 - ex] - origin[0], yExtent[1 - ey] - origin[1] ];\n",
              "        origin[0] = xExtent[ex];\n",
              "        origin[1] = yExtent[ey];\n",
              "      } else if (d3.event.altKey) center = origin.slice();\n",
              "      g.style(\"pointer-events\", \"none\").selectAll(\".resize\").style(\"display\", null);\n",
              "      d3.select(\"body\").style(\"cursor\", eventTarget.style(\"cursor\"));\n",
              "      event_({\n",
              "        type: \"brushstart\"\n",
              "      });\n",
              "      brushmove();\n",
              "      function keydown() {\n",
              "        if (d3.event.keyCode == 32) {\n",
              "          if (!dragging) {\n",
              "            center = null;\n",
              "            origin[0] -= xExtent[1];\n",
              "            origin[1] -= yExtent[1];\n",
              "            dragging = 2;\n",
              "          }\n",
              "          d3_eventPreventDefault();\n",
              "        }\n",
              "      }\n",
              "      function keyup() {\n",
              "        if (d3.event.keyCode == 32 && dragging == 2) {\n",
              "          origin[0] += xExtent[1];\n",
              "          origin[1] += yExtent[1];\n",
              "          dragging = 0;\n",
              "          d3_eventPreventDefault();\n",
              "        }\n",
              "      }\n",
              "      function brushmove() {\n",
              "        var point = d3.mouse(target), moved = false;\n",
              "        if (offset) {\n",
              "          point[0] += offset[0];\n",
              "          point[1] += offset[1];\n",
              "        }\n",
              "        if (!dragging) {\n",
              "          if (d3.event.altKey) {\n",
              "            if (!center) center = [ (xExtent[0] + xExtent[1]) / 2, (yExtent[0] + yExtent[1]) / 2 ];\n",
              "            origin[0] = xExtent[+(point[0] < center[0])];\n",
              "            origin[1] = yExtent[+(point[1] < center[1])];\n",
              "          } else center = null;\n",
              "        }\n",
              "        if (resizingX && move1(point, x, 0)) {\n",
              "          redrawX(g);\n",
              "          moved = true;\n",
              "        }\n",
              "        if (resizingY && move1(point, y, 1)) {\n",
              "          redrawY(g);\n",
              "          moved = true;\n",
              "        }\n",
              "        if (moved) {\n",
              "          redraw(g);\n",
              "          event_({\n",
              "            type: \"brush\",\n",
              "            mode: dragging ? \"move\" : \"resize\"\n",
              "          });\n",
              "        }\n",
              "      }\n",
              "      function move1(point, scale, i) {\n",
              "        var range = d3_scaleRange(scale), r0 = range[0], r1 = range[1], position = origin[i], extent = i ? yExtent : xExtent, size = extent[1] - extent[0], min, max;\n",
              "        if (dragging) {\n",
              "          r0 -= position;\n",
              "          r1 -= size + position;\n",
              "        }\n",
              "        min = (i ? yClamp : xClamp) ? Math.max(r0, Math.min(r1, point[i])) : point[i];\n",
              "        if (dragging) {\n",
              "          max = (min += position) + size;\n",
              "        } else {\n",
              "          if (center) position = Math.max(r0, Math.min(r1, 2 * center[i] - min));\n",
              "          if (position < min) {\n",
              "            max = min;\n",
              "            min = position;\n",
              "          } else {\n",
              "            max = position;\n",
              "          }\n",
              "        }\n",
              "        if (extent[0] != min || extent[1] != max) {\n",
              "          if (i) yExtentDomain = null; else xExtentDomain = null;\n",
              "          extent[0] = min;\n",
              "          extent[1] = max;\n",
              "          return true;\n",
              "        }\n",
              "      }\n",
              "      function brushend() {\n",
              "        brushmove();\n",
              "        g.style(\"pointer-events\", \"all\").selectAll(\".resize\").style(\"display\", brush.empty() ? \"none\" : null);\n",
              "        d3.select(\"body\").style(\"cursor\", null);\n",
              "        w.on(\"mousemove.brush\", null).on(\"mouseup.brush\", null).on(\"touchmove.brush\", null).on(\"touchend.brush\", null).on(\"keydown.brush\", null).on(\"keyup.brush\", null);\n",
              "        dragRestore();\n",
              "        event_({\n",
              "          type: \"brushend\"\n",
              "        });\n",
              "      }\n",
              "    }\n",
              "    brush.x = function(z) {\n",
              "      if (!arguments.length) return x;\n",
              "      x = z;\n",
              "      resizes = d3_svg_brushResizes[!x << 1 | !y];\n",
              "      return brush;\n",
              "    };\n",
              "    brush.y = function(z) {\n",
              "      if (!arguments.length) return y;\n",
              "      y = z;\n",
              "      resizes = d3_svg_brushResizes[!x << 1 | !y];\n",
              "      return brush;\n",
              "    };\n",
              "    brush.clamp = function(z) {\n",
              "      if (!arguments.length) return x && y ? [ xClamp, yClamp ] : x ? xClamp : y ? yClamp : null;\n",
              "      if (x && y) xClamp = !!z[0], yClamp = !!z[1]; else if (x) xClamp = !!z; else if (y) yClamp = !!z;\n",
              "      return brush;\n",
              "    };\n",
              "    brush.extent = function(z) {\n",
              "      var x0, x1, y0, y1, t;\n",
              "      if (!arguments.length) {\n",
              "        if (x) {\n",
              "          if (xExtentDomain) {\n",
              "            x0 = xExtentDomain[0], x1 = xExtentDomain[1];\n",
              "          } else {\n",
              "            x0 = xExtent[0], x1 = xExtent[1];\n",
              "            if (x.invert) x0 = x.invert(x0), x1 = x.invert(x1);\n",
              "            if (x1 < x0) t = x0, x0 = x1, x1 = t;\n",
              "          }\n",
              "        }\n",
              "        if (y) {\n",
              "          if (yExtentDomain) {\n",
              "            y0 = yExtentDomain[0], y1 = yExtentDomain[1];\n",
              "          } else {\n",
              "            y0 = yExtent[0], y1 = yExtent[1];\n",
              "            if (y.invert) y0 = y.invert(y0), y1 = y.invert(y1);\n",
              "            if (y1 < y0) t = y0, y0 = y1, y1 = t;\n",
              "          }\n",
              "        }\n",
              "        return x && y ? [ [ x0, y0 ], [ x1, y1 ] ] : x ? [ x0, x1 ] : y && [ y0, y1 ];\n",
              "      }\n",
              "      if (x) {\n",
              "        x0 = z[0], x1 = z[1];\n",
              "        if (y) x0 = x0[0], x1 = x1[0];\n",
              "        xExtentDomain = [ x0, x1 ];\n",
              "        if (x.invert) x0 = x(x0), x1 = x(x1);\n",
              "        if (x1 < x0) t = x0, x0 = x1, x1 = t;\n",
              "        if (x0 != xExtent[0] || x1 != xExtent[1]) xExtent = [ x0, x1 ];\n",
              "      }\n",
              "      if (y) {\n",
              "        y0 = z[0], y1 = z[1];\n",
              "        if (x) y0 = y0[1], y1 = y1[1];\n",
              "        yExtentDomain = [ y0, y1 ];\n",
              "        if (y.invert) y0 = y(y0), y1 = y(y1);\n",
              "        if (y1 < y0) t = y0, y0 = y1, y1 = t;\n",
              "        if (y0 != yExtent[0] || y1 != yExtent[1]) yExtent = [ y0, y1 ];\n",
              "      }\n",
              "      return brush;\n",
              "    };\n",
              "    brush.clear = function() {\n",
              "      if (!brush.empty()) {\n",
              "        xExtent = [ 0, 0 ], yExtent = [ 0, 0 ];\n",
              "        xExtentDomain = yExtentDomain = null;\n",
              "      }\n",
              "      return brush;\n",
              "    };\n",
              "    brush.empty = function() {\n",
              "      return !!x && xExtent[0] == xExtent[1] || !!y && yExtent[0] == yExtent[1];\n",
              "    };\n",
              "    return d3.rebind(brush, event, \"on\");\n",
              "  };\n",
              "  var d3_svg_brushCursor = {\n",
              "    n: \"ns-resize\",\n",
              "    e: \"ew-resize\",\n",
              "    s: \"ns-resize\",\n",
              "    w: \"ew-resize\",\n",
              "    nw: \"nwse-resize\",\n",
              "    ne: \"nesw-resize\",\n",
              "    se: \"nwse-resize\",\n",
              "    sw: \"nesw-resize\"\n",
              "  };\n",
              "  var d3_svg_brushResizes = [ [ \"n\", \"e\", \"s\", \"w\", \"nw\", \"ne\", \"se\", \"sw\" ], [ \"e\", \"w\" ], [ \"n\", \"s\" ], [] ];\n",
              "  var d3_time_format = d3_time.format = d3_locale_enUS.timeFormat;\n",
              "  var d3_time_formatUtc = d3_time_format.utc;\n",
              "  var d3_time_formatIso = d3_time_formatUtc(\"%Y-%m-%dT%H:%M:%S.%LZ\");\n",
              "  d3_time_format.iso = Date.prototype.toISOString && +new Date(\"2000-01-01T00:00:00.000Z\") ? d3_time_formatIsoNative : d3_time_formatIso;\n",
              "  function d3_time_formatIsoNative(date) {\n",
              "    return date.toISOString();\n",
              "  }\n",
              "  d3_time_formatIsoNative.parse = function(string) {\n",
              "    var date = new Date(string);\n",
              "    return isNaN(date) ? null : date;\n",
              "  };\n",
              "  d3_time_formatIsoNative.toString = d3_time_formatIso.toString;\n",
              "  d3_time.second = d3_time_interval(function(date) {\n",
              "    return new d3_date(Math.floor(date / 1e3) * 1e3);\n",
              "  }, function(date, offset) {\n",
              "    date.setTime(date.getTime() + Math.floor(offset) * 1e3);\n",
              "  }, function(date) {\n",
              "    return date.getSeconds();\n",
              "  });\n",
              "  d3_time.seconds = d3_time.second.range;\n",
              "  d3_time.seconds.utc = d3_time.second.utc.range;\n",
              "  d3_time.minute = d3_time_interval(function(date) {\n",
              "    return new d3_date(Math.floor(date / 6e4) * 6e4);\n",
              "  }, function(date, offset) {\n",
              "    date.setTime(date.getTime() + Math.floor(offset) * 6e4);\n",
              "  }, function(date) {\n",
              "    return date.getMinutes();\n",
              "  });\n",
              "  d3_time.minutes = d3_time.minute.range;\n",
              "  d3_time.minutes.utc = d3_time.minute.utc.range;\n",
              "  d3_time.hour = d3_time_interval(function(date) {\n",
              "    var timezone = date.getTimezoneOffset() / 60;\n",
              "    return new d3_date((Math.floor(date / 36e5 - timezone) + timezone) * 36e5);\n",
              "  }, function(date, offset) {\n",
              "    date.setTime(date.getTime() + Math.floor(offset) * 36e5);\n",
              "  }, function(date) {\n",
              "    return date.getHours();\n",
              "  });\n",
              "  d3_time.hours = d3_time.hour.range;\n",
              "  d3_time.hours.utc = d3_time.hour.utc.range;\n",
              "  d3_time.month = d3_time_interval(function(date) {\n",
              "    date = d3_time.day(date);\n",
              "    date.setDate(1);\n",
              "    return date;\n",
              "  }, function(date, offset) {\n",
              "    date.setMonth(date.getMonth() + offset);\n",
              "  }, function(date) {\n",
              "    return date.getMonth();\n",
              "  });\n",
              "  d3_time.months = d3_time.month.range;\n",
              "  d3_time.months.utc = d3_time.month.utc.range;\n",
              "  function d3_time_scale(linear, methods, format) {\n",
              "    function scale(x) {\n",
              "      return linear(x);\n",
              "    }\n",
              "    scale.invert = function(x) {\n",
              "      return d3_time_scaleDate(linear.invert(x));\n",
              "    };\n",
              "    scale.domain = function(x) {\n",
              "      if (!arguments.length) return linear.domain().map(d3_time_scaleDate);\n",
              "      linear.domain(x);\n",
              "      return scale;\n",
              "    };\n",
              "    function tickMethod(extent, count) {\n",
              "      var span = extent[1] - extent[0], target = span / count, i = d3.bisect(d3_time_scaleSteps, target);\n",
              "      return i == d3_time_scaleSteps.length ? [ methods.year, d3_scale_linearTickRange(extent.map(function(d) {\n",
              "        return d / 31536e6;\n",
              "      }), count)[2] ] : !i ? [ d3_time_scaleMilliseconds, d3_scale_linearTickRange(extent, count)[2] ] : methods[target / d3_time_scaleSteps[i - 1] < d3_time_scaleSteps[i] / target ? i - 1 : i];\n",
              "    }\n",
              "    scale.nice = function(interval, skip) {\n",
              "      var domain = scale.domain(), extent = d3_scaleExtent(domain), method = interval == null ? tickMethod(extent, 10) : typeof interval === \"number\" && tickMethod(extent, interval);\n",
              "      if (method) interval = method[0], skip = method[1];\n",
              "      function skipped(date) {\n",
              "        return !isNaN(date) && !interval.range(date, d3_time_scaleDate(+date + 1), skip).length;\n",
              "      }\n",
              "      return scale.domain(d3_scale_nice(domain, skip > 1 ? {\n",
              "        floor: function(date) {\n",
              "          while (skipped(date = interval.floor(date))) date = d3_time_scaleDate(date - 1);\n",
              "          return date;\n",
              "        },\n",
              "        ceil: function(date) {\n",
              "          while (skipped(date = interval.ceil(date))) date = d3_time_scaleDate(+date + 1);\n",
              "          return date;\n",
              "        }\n",
              "      } : interval));\n",
              "    };\n",
              "    scale.ticks = function(interval, skip) {\n",
              "      var extent = d3_scaleExtent(scale.domain()), method = interval == null ? tickMethod(extent, 10) : typeof interval === \"number\" ? tickMethod(extent, interval) : !interval.range && [ {\n",
              "        range: interval\n",
              "      }, skip ];\n",
              "      if (method) interval = method[0], skip = method[1];\n",
              "      return interval.range(extent[0], d3_time_scaleDate(+extent[1] + 1), skip < 1 ? 1 : skip);\n",
              "    };\n",
              "    scale.tickFormat = function() {\n",
              "      return format;\n",
              "    };\n",
              "    scale.copy = function() {\n",
              "      return d3_time_scale(linear.copy(), methods, format);\n",
              "    };\n",
              "    return d3_scale_linearRebind(scale, linear);\n",
              "  }\n",
              "  function d3_time_scaleDate(t) {\n",
              "    return new Date(t);\n",
              "  }\n",
              "  var d3_time_scaleSteps = [ 1e3, 5e3, 15e3, 3e4, 6e4, 3e5, 9e5, 18e5, 36e5, 108e5, 216e5, 432e5, 864e5, 1728e5, 6048e5, 2592e6, 7776e6, 31536e6 ];\n",
              "  var d3_time_scaleLocalMethods = [ [ d3_time.second, 1 ], [ d3_time.second, 5 ], [ d3_time.second, 15 ], [ d3_time.second, 30 ], [ d3_time.minute, 1 ], [ d3_time.minute, 5 ], [ d3_time.minute, 15 ], [ d3_time.minute, 30 ], [ d3_time.hour, 1 ], [ d3_time.hour, 3 ], [ d3_time.hour, 6 ], [ d3_time.hour, 12 ], [ d3_time.day, 1 ], [ d3_time.day, 2 ], [ d3_time.week, 1 ], [ d3_time.month, 1 ], [ d3_time.month, 3 ], [ d3_time.year, 1 ] ];\n",
              "  var d3_time_scaleLocalFormat = d3_time_format.multi([ [ \".%L\", function(d) {\n",
              "    return d.getMilliseconds();\n",
              "  } ], [ \":%S\", function(d) {\n",
              "    return d.getSeconds();\n",
              "  } ], [ \"%I:%M\", function(d) {\n",
              "    return d.getMinutes();\n",
              "  } ], [ \"%I %p\", function(d) {\n",
              "    return d.getHours();\n",
              "  } ], [ \"%a %d\", function(d) {\n",
              "    return d.getDay() && d.getDate() != 1;\n",
              "  } ], [ \"%b %d\", function(d) {\n",
              "    return d.getDate() != 1;\n",
              "  } ], [ \"%B\", function(d) {\n",
              "    return d.getMonth();\n",
              "  } ], [ \"%Y\", d3_true ] ]);\n",
              "  var d3_time_scaleMilliseconds = {\n",
              "    range: function(start, stop, step) {\n",
              "      return d3.range(Math.ceil(start / step) * step, +stop, step).map(d3_time_scaleDate);\n",
              "    },\n",
              "    floor: d3_identity,\n",
              "    ceil: d3_identity\n",
              "  };\n",
              "  d3_time_scaleLocalMethods.year = d3_time.year;\n",
              "  d3_time.scale = function() {\n",
              "    return d3_time_scale(d3.scale.linear(), d3_time_scaleLocalMethods, d3_time_scaleLocalFormat);\n",
              "  };\n",
              "  var d3_time_scaleUtcMethods = d3_time_scaleLocalMethods.map(function(m) {\n",
              "    return [ m[0].utc, m[1] ];\n",
              "  });\n",
              "  var d3_time_scaleUtcFormat = d3_time_formatUtc.multi([ [ \".%L\", function(d) {\n",
              "    return d.getUTCMilliseconds();\n",
              "  } ], [ \":%S\", function(d) {\n",
              "    return d.getUTCSeconds();\n",
              "  } ], [ \"%I:%M\", function(d) {\n",
              "    return d.getUTCMinutes();\n",
              "  } ], [ \"%I %p\", function(d) {\n",
              "    return d.getUTCHours();\n",
              "  } ], [ \"%a %d\", function(d) {\n",
              "    return d.getUTCDay() && d.getUTCDate() != 1;\n",
              "  } ], [ \"%b %d\", function(d) {\n",
              "    return d.getUTCDate() != 1;\n",
              "  } ], [ \"%B\", function(d) {\n",
              "    return d.getUTCMonth();\n",
              "  } ], [ \"%Y\", d3_true ] ]);\n",
              "  d3_time_scaleUtcMethods.year = d3_time.year.utc;\n",
              "  d3_time.scale.utc = function() {\n",
              "    return d3_time_scale(d3.scale.linear(), d3_time_scaleUtcMethods, d3_time_scaleUtcFormat);\n",
              "  };\n",
              "  d3.text = d3_xhrType(function(request) {\n",
              "    return request.responseText;\n",
              "  });\n",
              "  d3.json = function(url, callback) {\n",
              "    return d3_xhr(url, \"application/json\", d3_json, callback);\n",
              "  };\n",
              "  function d3_json(request) {\n",
              "    return JSON.parse(request.responseText);\n",
              "  }\n",
              "  d3.html = function(url, callback) {\n",
              "    return d3_xhr(url, \"text/html\", d3_html, callback);\n",
              "  };\n",
              "  function d3_html(request) {\n",
              "    var range = d3_document.createRange();\n",
              "    range.selectNode(d3_document.body);\n",
              "    return range.createContextualFragment(request.responseText);\n",
              "  }\n",
              "  d3.xml = d3_xhrType(function(request) {\n",
              "    return request.responseXML;\n",
              "  });\n",
              "  if (typeof define === \"function\" && define.amd) this.d3 = d3, define(d3); else if (typeof module === \"object\" && module.exports) module.exports = d3; else this.d3 = d3;\n",
              "}();\n",
              "        \n",
              "function d3graphscript(config = {\n",
              "    // Default values\n",
              "    width: 800,\n",
              "    height: 600,\n",
              "    charge: -250,\n",
              "    distance: 0,\n",
              "    directed: false,\n",
              "    collision: 0.5\n",
              "    }) {\n",
              "\n",
              "  // console.log('d3graphscript config = ', config);\n",
              "\n",
              "  //Constants for the SVG\n",
              "  var width = config.width;\n",
              "  var height = config.height;\n",
              "\n",
              "  //Set up the colour scale\n",
              "  var color = d3.scale.category20();\n",
              "\n",
              "  var force = d3.layout.force()\n",
              "    .charge(config.charge)\n",
              "    .linkDistance((d) => config.distance > 0 ? config.distance : d.edge_weight)\n",
              "    .size([width, height]);\n",
              "\n",
              "\n",
              "  //Append a SVG to the body of the html page. Assign this SVG as an object to svg\n",
              "  var svg = d3.select(\"body\").append(\"svg\")\n",
              "    .attr(\"width\", width)\n",
              "    .attr(\"height\", height)\n",
              "  //.on(\"dblclick\", threshold); // EXPLODE ALL CONNECTED POINTS\n",
              "\n",
              "  graphRec = JSON.parse(JSON.stringify(graph));\n",
              "\n",
              "  //Creates the graph data structure out of the json data\n",
              "  force.nodes(graph.nodes)\n",
              "    .links(graph.links)\n",
              "    .start();\n",
              "\n",
              "  // Create all the line svgs but without locations yet\n",
              "  var link = svg.selectAll(\".link\")\n",
              "    .data(graph.links)\n",
              "    .enter().append(\"line\")\n",
              "    .attr(\"class\", \"link\")\n",
              "    .attr('marker-start', function(d){ return 'url(#marker_' + d.marker_start + ')' })\n",
              "\t.attr(\"marker-end\", function(d) {\n",
              "\t\tif (config.directed) {return 'url(#marker_' + d.marker_end + ')' }})\n",
              "    .style(\"stroke-width\", function(d) {return d.edge_width;})          // LINK-WIDTH\n",
              "    .style(\"stroke\", function(d) {return d.color;})                     // EDGE-COLORS\n",
              "//  .style(\"stroke-width\", 1); // WIDTH OF THE LINKS\n",
              "  ;\n",
              "\n",
              "  //Do the same with the circles for the nodes\n",
              "  var node = svg.selectAll(\".node\")\n",
              "    .data(graph.nodes)\n",
              "    .enter().append(\"g\")\n",
              "    .attr(\"class\", \"node\")\n",
              "    .call(force.drag)\n",
              "    .on('dblclick', connectedNodes); // HIGHLIGHT ON/OFF\n",
              "\n",
              "  node.append(\"circle\")\n",
              "    .attr(\"r\", function(d) { return d.node_size; })\t\t\t\t\t// NODE SIZE\n",
              "    .style(\"fill\", function(d) {return d.node_color;})\t\t\t\t// NODE-COLOR\n",
              "    .style(\"stroke-width\", function(d) {return d.node_size_edge;})\t// NODE-EDGE-SIZE\n",
              "    .style(\"stroke\", function(d) {return d.node_color_edge;})\t\t// NODE-COLOR-EDGE\n",
              "  //  .style(\"stroke\", '#000')\t\t\t\t\t\t\t\t\t\t// NODE-EDGE-COLOR (all black)\n",
              "\n",
              "  // Text in nodes\n",
              "  node.append(\"text\")\n",
              "    .attr(\"dx\", 10)\n",
              "    .attr(\"dy\", \".35em\")\n",
              "    .text(function(d) {return d.node_name}) // NODE-TEXT\n",
              "  //  .style(\"stroke\", \"gray\");\n",
              "\n",
              "  let showInHover = [\"node_tooltip\"]; // Tooltip\n",
              "  node.append(\"title\")\n",
              "      .text((d) => Object.keys(d)\n",
              "          .filter((key) => showInHover.indexOf(key) !== -1)\n",
              "          .map((key) => `${d[key]}`)\n",
              "          .join('\\n')\n",
              "      )\n",
              "\n",
              "  //Now we are giving the SVGs co-ordinates - the force layout is generating the co-ordinates which this code is using to update the attributes of the SVG elements\n",
              "  force.on(\"tick\", function() {\n",
              "    link.attr(\"x1\", function(d) { return d.source.x; })\n",
              "      .attr(\"y1\", function(d) { return d.source.y; })\n",
              "      .attr(\"x2\", function(d) { return d.target.x; })\n",
              "      .attr(\"y2\", function(d) { return d.target.y; });\n",
              "    d3.selectAll(\"circle\").attr(\"cx\", function(d) { return d.x; })\n",
              "      .attr(\"cy\", function(d) { return d.y; });\n",
              "    d3.selectAll(\"text\").attr(\"x\", function(d) { return d.x; })\n",
              "      .attr(\"y\", function(d) { return d.y; });\n",
              "\n",
              "    node.each(collide(config.collision)); //COLLISION DETECTION. High means a big fight to get untouchable nodes (default=0.5)\n",
              "\n",
              "  });\n",
              "\n",
              "  // --------- MARKER -----------\n",
              "\n",
              "  var data_marker = [\n",
              "    { id: 0, name: 'circle', path: 'M 0, 0  m -5, 0  a 5,5 0 1,0 10,0  a 5,5 0 1,0 -10,0', viewbox: '-6 -6 12 12' }\n",
              "  , { id: 1, name: 'square', path: 'M 0,0 m -5,-5 L 5,-5 L 5,5 L -5,5 Z', viewbox: '-5 -5 10 10' }\n",
              "  , { id: 2, name: 'arrow', path: 'M 0,0 m -5,-5 L 5,0 L -5,5 Z', viewbox: '-5 -5 10 10' }\n",
              "  , { id: 3, name: 'stub', path: 'M 0,0 m -1,-5 L 1,-5 L 1,5 L -1,5 Z', viewbox: '-1 -5 2 10' }\n",
              "  ]\n",
              "\n",
              "  //console.log(JSON.stringify(link))\n",
              "\n",
              "  svg.append(\"defs\").selectAll(\"marker\")\n",
              "    .data(data_marker)\n",
              "    .enter()\n",
              "    .append('svg:marker')\n",
              "      .attr('id', function(d){ return 'marker_' + d.name})\n",
              "      .attr('markerHeight', 10)\n",
              "      .attr('markerWidth', 10)\n",
              "      //.attr('markerUnits', 'strokeWidth')\n",
              "      .attr(\"markerUnits\", \"userSpaceOnUse\")                   // Fix marker width\n",
              "      .attr('orient', 'auto')\n",
              "      //.attr('refX', -15)                                     // Offset marker-start\n",
              "      .attr('refX', 15)                                        // Offset marker-end\n",
              "      .attr('refY', 0)\n",
              "      .attr('viewBox', function(d){ return d.viewbox })\n",
              "      .append('svg:path')\n",
              "\t    //.attr(\"transform\", \"rotate(180)\")                    // Marker-start mirrored\n",
              "        .attr('d', function(d){ return d.path })               // Marker type\n",
              "        //.style(\"fill\", function(d) {return d.marker_color;}) // Marker color\n",
              "        .style(\"fill\", '#808080')                              // Marker color\n",
              "        .style(\"stroke\", '#808080')                            // Marker edge-color\n",
              "        .style(\"opacity\", \"1\")                                 // Marker opacity\n",
              "        .style(\"stroke-width\", '1');                           // Marker edge thickness\n",
              "\n",
              "  // --------- END MARKER -----------\n",
              "\n",
              "\n",
              "  // collision detection\n",
              "\n",
              "  var padding = 1, // separation between circles\n",
              "    radius = 8;\n",
              "\n",
              "  function collide(alpha) {\n",
              "    var quadtree = d3.geom.quadtree(graph.nodes);\n",
              "    return function(d) {\n",
              "      var rb = 2 * radius + padding,\n",
              "        nx1 = d.x - rb,\n",
              "        nx2 = d.x + rb,\n",
              "        ny1 = d.y - rb,\n",
              "        ny2 = d.y + rb;\n",
              "      quadtree.visit(function(quad, x1, y1, x2, y2) {\n",
              "        if (quad.point && (quad.point !== d)) {\n",
              "          var x = d.x - quad.point.x,\n",
              "            y = d.y - quad.point.y,\n",
              "            l = Math.sqrt(x * x + y * y);\n",
              "          if (l < rb) {\n",
              "            l = (l - rb) / l * alpha;\n",
              "            d.x -= x *= l;\n",
              "            d.y -= y *= l;\n",
              "            quad.point.x += x;\n",
              "            quad.point.y += y;\n",
              "          }\n",
              "        }\n",
              "        return x1 > nx2 || x2 < nx1 || y1 > ny2 || y2 < ny1;\n",
              "      });\n",
              "    };\n",
              "  }\n",
              "  // collision detection end\n",
              "\n",
              "\n",
              "  //Toggle stores whether the highlighting is on **********************\n",
              "  var toggle = 0;\n",
              "  //Create an array logging what is connected to what\n",
              "  var linkedByIndex = {};\n",
              "  for (i = 0; i < graph.nodes.length; i++) {\n",
              "    linkedByIndex[i + \",\" + i] = 1;\n",
              "  };\n",
              "  graph.links.forEach(function(d) {\n",
              "    linkedByIndex[d.source.index + \",\" + d.target.index] = 1;\n",
              "  });\n",
              "  //This function looks up whether a pair are neighbours\n",
              "  function neighboring(a, b) {\n",
              "    return linkedByIndex[a.index + \",\" + b.index];\n",
              "  }\n",
              "\n",
              "  function connectedNodes() {\n",
              "    if (toggle == 0) {\n",
              "      //Reduce the opacity of all but the neighbouring nodes\n",
              "      d = d3.select(this).node().__data__;\n",
              "      node.style(\"opacity\", function(o) {\n",
              "        return neighboring(d, o) | neighboring(o, d) ? 1 : 0.1;\n",
              "      });\n",
              "      link.style(\"opacity\", function(o) {\n",
              "        return d.index == o.source.index | d.index == o.target.index ? 1 : 0.1;\n",
              "      });\n",
              "      //Reduce the op\n",
              "      toggle = 1;\n",
              "    } else {\n",
              "      //Put them back to opacity=1\n",
              "      node.style(\"opacity\", 1);\n",
              "      link.style(\"opacity\", 1);\n",
              "\n",
              "      toggle = 0;\n",
              "    }\n",
              "  }\n",
              "  //*************************************************************\n",
              "\n",
              "\n",
              "  //adjust threshold\n",
              "  function threshold() {\n",
              "    let thresh = this.value;\n",
              "\n",
              "    // console.log('Setting threshold', thresh)\n",
              "    graph.links.splice(0, graph.links.length);\n",
              "\n",
              "    for (var i = 0; i < graphRec.links.length; i++) {\n",
              "      if (graphRec.links[i].edge_weight > thresh) {\n",
              "        graph.links.push(graphRec.links[i]);\n",
              "      }\n",
              "    }\n",
              "    restart();\n",
              "  }\n",
              "\n",
              "  d3.select(\"#thresholdSlider\").on(\"change\", threshold);\n",
              "\n",
              "  //Restart the visualisation after any node and link changes\n",
              "  function restart() {\n",
              "\n",
              "    link = link.data(graph.links);\n",
              "    link.exit().remove();\n",
              "    link.enter().insert(\"line\", \".node\").attr(\"class\", \"link\");\n",
              "    link.style(\"stroke-width\", function(d) {return d.edge_width;});           // LINK-WIDTH AFTER BREAKING WITH SLIDER\n",
              "    //link.style('marker-start', function(d){ return 'url(#marker_' + d.marker_start  + ')' })\n",
              "\tlink.style(\"marker-end\", function(d) {                                    // Include the markers.\n",
              "\t\tif (config.directed) {return 'url(#marker_' + d.marker_end + ')' }})\n",
              "    link.style(\"stroke\", function(d) {return d.color;});                      // EDGE-COLOR AFTER BREAKING WITH SLIDER\n",
              "\n",
              "    node = node.data(graph.nodes);\n",
              "    node.enter().insert(\"circle\", \".cursor\").attr(\"class\", \"node\").attr(\"r\", 5).call(force.drag);\n",
              "    force.start();\n",
              "  }\n",
              "}\n",
              "\n",
              "        graph = {\"links\":[{\"marker_color\":\"#808080\",\"marker_start\":\"\",\"marker_end\":\"arrow\",\"weight\":4,\"color\":\"#808080\",\"edge_width\":2.8802,\"edge_weight\":4,\"source\":0,\"target\":1,\"source_label\":\"0\",\"target_label\":\"1\"},{\"marker_color\":\"#808080\",\"marker_start\":\"\",\"marker_end\":\"arrow\",\"weight\":5,\"color\":\"#808080\",\"edge_width\":3.6736,\"edge_weight\":5,\"source\":0,\"target\":2,\"source_label\":\"0\",\"target_label\":\"2\"},{\"marker_color\":\"#808080\",\"marker_start\":\"\",\"marker_end\":\"arrow\",\"weight\":3,\"color\":\"#808080\",\"edge_width\":2.0868,\"edge_weight\":3,\"source\":0,\"target\":3,\"source_label\":\"0\",\"target_label\":\"3\"},{\"marker_color\":\"#808080\",\"marker_start\":\"\",\"marker_end\":\"arrow\",\"weight\":3,\"color\":\"#808080\",\"edge_width\":2.0868,\"edge_weight\":3,\"source\":0,\"target\":4,\"source_label\":\"0\",\"target_label\":\"4\"},{\"marker_color\":\"#808080\",\"marker_start\":\"\",\"marker_end\":\"arrow\",\"weight\":3,\"color\":\"#808080\",\"edge_width\":2.0868,\"edge_weight\":3,\"source\":0,\"target\":5,\"source_label\":\"0\",\"target_label\":\"5\"},{\"marker_color\":\"#808080\",\"marker_start\":\"\",\"marker_end\":\"arrow\",\"weight\":3,\"color\":\"#808080\",\"edge_width\":2.0868,\"edge_weight\":3,\"source\":0,\"target\":6,\"source_label\":\"0\",\"target_label\":\"6\"},{\"marker_color\":\"#808080\",\"marker_start\":\"\",\"marker_end\":\"arrow\",\"weight\":2,\"color\":\"#808080\",\"edge_width\":1.2934,\"edge_weight\":2,\"source\":0,\"target\":7,\"source_label\":\"0\",\"target_label\":\"7\"},{\"marker_color\":\"#808080\",\"marker_start\":\"\",\"marker_end\":\"arrow\",\"weight\":2,\"color\":\"#808080\",\"edge_width\":1.2934,\"edge_weight\":2,\"source\":0,\"target\":8,\"source_label\":\"0\",\"target_label\":\"8\"},{\"marker_color\":\"#808080\",\"marker_start\":\"\",\"marker_end\":\"arrow\",\"weight\":2,\"color\":\"#808080\",\"edge_width\":1.2934,\"edge_weight\":2,\"source\":0,\"target\":9,\"source_label\":\"0\",\"target_label\":\"10\"},{\"marker_color\":\"#808080\",\"marker_start\":\"\",\"marker_end\":\"arrow\",\"weight\":3,\"color\":\"#808080\",\"edge_width\":2.0868,\"edge_weight\":3,\"source\":0,\"target\":10,\"source_label\":\"0\",\"target_label\":\"11\"},{\"marker_color\":\"#808080\",\"marker_start\":\"\",\"marker_end\":\"arrow\",\"weight\":1,\"color\":\"#808080\",\"edge_width\":0.5,\"edge_weight\":1,\"source\":0,\"target\":11,\"source_label\":\"0\",\"target_label\":\"12\"},{\"marker_color\":\"#808080\",\"marker_start\":\"\",\"marker_end\":\"arrow\",\"weight\":3,\"color\":\"#808080\",\"edge_width\":2.0868,\"edge_weight\":3,\"source\":0,\"target\":12,\"source_label\":\"0\",\"target_label\":\"13\"},{\"marker_color\":\"#808080\",\"marker_start\":\"\",\"marker_end\":\"arrow\",\"weight\":2,\"color\":\"#808080\",\"edge_width\":1.2934,\"edge_weight\":2,\"source\":0,\"target\":13,\"source_label\":\"0\",\"target_label\":\"17\"},{\"marker_color\":\"#808080\",\"marker_start\":\"\",\"marker_end\":\"arrow\",\"weight\":2,\"color\":\"#808080\",\"edge_width\":1.2934,\"edge_weight\":2,\"source\":0,\"target\":14,\"source_label\":\"0\",\"target_label\":\"19\"},{\"marker_color\":\"#808080\",\"marker_start\":\"\",\"marker_end\":\"arrow\",\"weight\":2,\"color\":\"#808080\",\"edge_width\":1.2934,\"edge_weight\":2,\"source\":0,\"target\":15,\"source_label\":\"0\",\"target_label\":\"21\"},{\"marker_color\":\"#808080\",\"marker_start\":\"\",\"marker_end\":\"arrow\",\"weight\":2,\"color\":\"#808080\",\"edge_width\":1.2934,\"edge_weight\":2,\"source\":0,\"target\":16,\"source_label\":\"0\",\"target_label\":\"31\"},{\"marker_color\":\"#808080\",\"marker_start\":\"\",\"marker_end\":\"arrow\",\"weight\":4,\"color\":\"#808080\",\"edge_width\":2.8802,\"edge_weight\":4,\"source\":1,\"target\":0,\"source_label\":\"1\",\"target_label\":\"0\"},{\"marker_color\":\"#808080\",\"marker_start\":\"\",\"marker_end\":\"arrow\",\"weight\":6,\"color\":\"#808080\",\"edge_width\":4.467,\"edge_weight\":6,\"source\":1,\"target\":2,\"source_label\":\"1\",\"target_label\":\"2\"},{\"marker_color\":\"#808080\",\"marker_start\":\"\",\"marker_end\":\"arrow\",\"weight\":3,\"color\":\"#808080\",\"edge_width\":2.0868,\"edge_weight\":3,\"source\":1,\"target\":3,\"source_label\":\"1\",\"target_label\":\"3\"},{\"marker_color\":\"#808080\",\"marker_start\":\"\",\"marker_end\":\"arrow\",\"weight\":4,\"color\":\"#808080\",\"edge_width\":2.8802,\"edge_weight\":4,\"source\":1,\"target\":7,\"source_label\":\"1\",\"target_label\":\"7\"},{\"marker_color\":\"#808080\",\"marker_start\":\"\",\"marker_end\":\"arrow\",\"weight\":5,\"color\":\"#808080\",\"edge_width\":3.6736,\"edge_weight\":5,\"source\":1,\"target\":12,\"source_label\":\"1\",\"target_label\":\"13\"},{\"marker_color\":\"#808080\",\"marker_start\":\"\",\"marker_end\":\"arrow\",\"weight\":1,\"color\":\"#808080\",\"edge_width\":0.5,\"edge_weight\":1,\"source\":1,\"target\":13,\"source_label\":\"1\",\"target_label\":\"17\"},{\"marker_color\":\"#80808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              "\n",
              "        window.addEventListener('DOMContentLoaded', function () {\n",
              "            d3graphscript({\n",
              "                width: 1500,\n",
              "                height: 800,\n",
              "                charge: -450,\n",
              "                distance: 30,\n",
              "                directed: false,\n",
              "                collision: 0.5\n",
              "            })\n",
              "        });\n",
              "    </script>\n",
              "</head>\n",
              "<body>\n",
              "\n",
              "<!-- SLIDER -->\n",
              "\n",
              "\n",
              "    \n",
              "\t<div style=\"max-width:1500px;\">\n",
              "        <form>\n",
              "            <h3>\n",
              "                Edge Threshold\n",
              "                0\n",
              "                <input type=\"range\" autocomplete=\"off\" id=\"thresholdSlider\" value=\"0\" min=\"0\" max=\"7\">\n",
              "                7\n",
              "            </h3>\n",
              "        </form>\n",
              "\t</div>\n",
              "    \n",
              "\n",
              "\n",
              "\n",
              "</body>\n",
              "</html>\n"
            ]
          },
          "metadata": {}
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "# Return HTML content\n",
        "html = d3.show(filepath=None, notebook=False)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "nZYkVCj3Sa_d",
        "outputId": "d7a71b8c-80f1-4f6f-bb2f-d38725e67890"
      },
      "execution_count": 3,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stderr",
          "text": [
            "[d3graph] INFO> Slider range is set to [0, 7]\n",
            "[d3graph] INFO> Nothing to display when filepath is None and notebook is False. Return HTML.\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "print(html[0:200])"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "DdXmemeQTLmF",
        "outputId": "1234169c-d55c-493f-886c-7d98cd87d543"
      },
      "execution_count": 26,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "<!DOCTYPE html>\n",
            "\n",
            "<html lang=\"en\">\n",
            "<head>\n",
            "    <meta charset=\"UTF-8\">\n",
            "    <title>elasticgraph</title>\n",
            "    <style type=\"text/css\">\n",
            "        html, body {\n",
            "  margin: 0;\n",
            "  padding: 0;\n",
            "  height: 100%;\n",
            "  width:\n"
          ]
        }
      ]
    }
  ]
}