Turns out the trees heatmap didn't need flipping.

Author: cwant

notebooks/99-bonus-edmonton-trees.ipynb

@@ -163,8 +163,6 @@
     "    y = row.latitude\n",
     "    i = bin_value(x, x_range[0], x_range[1], width)\n",
     "    j = bin_value(y, y_range[0], y_range[1], height)\n",
-    "    # Need to flip the Y direction because heatmaps plot down ward?\n",
-    "    j = height - 1 - j\n",
     "    tree_counts[i][j] += 1"
    ]
   },
@@ -230,7 +228,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   },
@@ -244,7 +242,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.6"
+   "version": "3.10.6"
   }
  },
  "nbformat": 4,