Merge pull request #3192 from plotly/typed-array-marker-size-legend-fix

Fix legend for traces with typed array marker.size

Author: etpinard

src/components/legend/style.js

@@ -148,7 +148,7 @@ module.exports = function style(s, gd) {
 
         function boundVal(attrIn, arrayToValFn, bounds) {
             var valIn = Lib.nestedProperty(trace, attrIn).get();
-            var valToBound = (Array.isArray(valIn) && arrayToValFn) ?
+            var valToBound = (Lib.isArrayOrTypedArray(valIn) && arrayToValFn) ?
                 arrayToValFn(valIn) :
                 valIn;
 

test/jasmine/tests/scatter_test.js

@@ -987,6 +987,19 @@ describe('end-to-end scatter tests', function() {
                 ['rgb(0, 255, 0)', 'rgb(0, 0, 255)', 'rgb(255, 0, 0)'],
                 [40, 30, 20]
             );
+
+            return Plotly.relayout(gd, 'showlegend', true);
+        })
+        .then(function() {
+            _assert(
+                ['rgb(0, 255, 0)', 'rgb(0, 0, 255)', 'rgb(255, 0, 0)'],
+                [40, 30, 20]
+            );
+
+            var legendPts = d3.select('.legend').selectAll('.scatterpts');
+            expect(legendPts.size()).toBe(1, '# legend items');
+            expect(getColor(legendPts.node())).toBe('rgb(0, 0, 0)', 'legend pt color');
+            expect(getMarkerSize(legendPts.node())).toBe(16, 'legend pt size');
         })
         .catch(failTest)
         .then(done);