scatter plot only select symbols from this chart

fixes #874

Changelog.md

@@ -1,4 +1,7 @@
 # 2.0 Series
+## 2.0.5
+* legend highlighting functions of scatter plots would select symbols in sibling charts, causing the symbols and sizes to change ([#874](https://github.com/dc-js/dc.js/issues/874))
+
 ## 2.0.4
 * Temporary flag [`stackMixin.evadeDomainFilter`](http://dc-js.github.io/dc.js/docs/html/dc.stackMixin.html#evadeDomainFilter__anchor) to work around [issue #949](https://github.com/dc-js/dc.js/issues/949) until it's fixed. The flag completely disables filtering of points by the stack mixin, because the current filtering is wrong. (The correct fix will be included in dc.js 2.1.x when it's ready.)
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "dc",
-  "version": "2.0.4",
+  "version": "2.0.5",
   "license": "Apache-2.0",
   "copyright": "2017",
   "description": "A multi-dimensional charting library built to work natively with crossfilter and rendered using d3.js ",

src/scatter-plot.js

@@ -360,7 +360,7 @@ dc.scatterPlot = function (parent, chartGroup) {
         resizeSymbolsWhere(function (symbol) {
             return symbol.attr('fill') === d.color;
         }, _highlightedSize);
-        _chart.selectAll('.chart-body path.symbol').filter(function () {
+        _chart.chartBodyG().selectAll('.chart-body path.symbol').filter(function () {
             return d3.select(this).attr('fill') !== d.color;
         }).classed('fadeout', true);
     };
@@ -369,13 +369,13 @@ dc.scatterPlot = function (parent, chartGroup) {
         resizeSymbolsWhere(function (symbol) {
             return symbol.attr('fill') === d.color;
         }, _symbolSize);
-        _chart.selectAll('.chart-body path.symbol').filter(function () {
+        _chart.chartBodyG().selectAll('.chart-body path.symbol').filter(function () {
             return d3.select(this).attr('fill') !== d.color;
         }).classed('fadeout', false);
     };
 
     function resizeSymbolsWhere (condition, size) {
-        var symbols = _chart.selectAll('.chart-body path.symbol').filter(function () {
+        var symbols = _chart.chartBodyG().selectAll('.chart-body path.symbol').filter(function () {
             return condition(d3.select(this));
         });
         var oldSize = _symbol.size();