Merge pull request #1168 from monfera/scattergl-with-one-datapoint

Fixing the non-fancy scattergl 'single data point' infinite loop

Author: etpinard

src/traces/scattergl/convert.js

@@ -272,7 +272,7 @@ proto.update = function(options) {
 // also, there are quite a few differences
 function allFastTypesLikely(a) {
     var len = a.length,
-        inc = Math.max(0, (len - 1) / Math.min(Math.max(len, 1), 1000)),
+        inc = Math.max(1, (len - 1) / Math.min(Math.max(len, 1), 1000)),
         ai;
 
     for(var i = 0; i < len; i += inc) {

test/image/baselines/gl2d_scatter-colorscale-colorbar.png

@@ -134,6 +134,15 @@
             ],
             "type": "scattergl",
             "mode": "markers"
+        },
+        {
+            "x": [20],
+            "y": [5.5],
+            "marker": {
+                "size": 20
+            },
+            "type": "scattergl",
+            "mode": "markers"
         }
     ],
     "layout": {
@@ -152,7 +161,7 @@
                 4,
                 6
             ],
-            "autorange": true
+            "autorange": false
         },
         "height": 598,
         "width": 1080,