#581 tests for constrained palettes

Author: monfera

test/image/baselines/gl3d_scatter-colorscale-marker-custom-constrained-palette.png

@@ -0,0 +1,20 @@
+{
+  "data": [{
+    "x":[-4,-3,-2,-1,0,1,2,3,4,5,6],
+    "y":[7,5,6,4,2,3,1,3,-1,-4,-2],
+    "z":[2,3,4,5,4,3,2,1,0,-1,-2],
+    "mode": "markers",
+    "type":"scatter3d",
+    "marker": {
+      "color": [-2,-1,0,1,2,3,4,5,6,7,8],
+      "colorscale": "Viridis",
+      "cmin": 2,
+      "cmax": 4
+    }
+  }],
+  "layout": {
+    "title": "Marker colors specified via color array; constrained custom palette",
+    "height":758,
+    "width":1310
+  }
+}

test/image/baselines/gl3d_scatter-colorscale-marker-default-constrained-palette.png

@@ -0,0 +1,19 @@
+{
+  "data": [{
+    "x":[-4,-3,-2,-1,0,1,2,3,4,5,6],
+    "y":[7,5,6,4,2,3,1,3,-1,-4,-2],
+    "z":[2,3,4,5,4,3,2,1,0,-1,-2],
+    "mode": "markers",
+    "type":"scatter3d",
+    "marker": {
+      "color": [-2,-1,0,1,2,3,4,5,6,7,8],
+      "cmin": 2,
+      "cmax": 4
+    }
+  }],
+  "layout": {
+    "title": "Marker colors specified via color array; constrained default palette",
+    "height":758,
+    "width":1310
+  }
+}