make sure restyle 'cmin' or 'cmax' clears 'cauto'

Author: etpinard

src/plot_api/plot_api.js

@@ -1383,6 +1383,7 @@ function _restyle(gd, aobj, _traces) {
     ];
 
     var zscl = ['zmin', 'zmax'],
+        cscl = ['cmin', 'cmax'],
         xbins = ['xbins.start', 'xbins.end', 'xbins.size'],
         ybins = ['ybins.start', 'ybins.end', 'ybins.size'],
         contourAttrs = ['contours.start', 'contours.end', 'contours.size'];
@@ -1482,6 +1483,9 @@ function _restyle(gd, aobj, _traces) {
             if(zscl.indexOf(ai) !== -1) {
                 doextra('zauto', false, i);
             }
+            if(cscl.indexOf(ai) !== -1) {
+                doextra('cauto', false, i);
+            }
             else if(ai === 'colorscale') {
                 doextra('autocolorscale', false, i);
             }

test/jasmine/tests/mesh3d_test.js

@@ -0,0 +1,57 @@
+var Plotly = require('@lib');
+var createGraphDiv = require('../assets/create_graph_div');
+var destroyGraphDiv = require('../assets/destroy_graph_div');
+var fail = require('../assets/fail_test');
+
+describe('Test mesh3d restyle', function() {
+    afterEach(destroyGraphDiv);
+
+    it('should clear *cauto* when restyle *cmin* and/or *cmax*', function(done) {
+        var gd = createGraphDiv();
+
+        function _assert(user, full) {
+            var trace = gd.data[0];
+            var fullTrace = gd._fullData[0];
+
+            expect(trace.cauto).toBe(user[0], 'user cauto');
+            expect(trace.cmin).toEqual(user[1], 'user cmin');
+            expect(trace.cmax).toEqual(user[2], 'user cmax');
+            expect(fullTrace.cauto).toBe(full[0], 'full cauto');
+            expect(fullTrace.cmin).toEqual(full[1], 'full cmin');
+            expect(fullTrace.cmax).toEqual(full[2], 'full cmax');
+        }
+
+        Plotly.plot(gd, [{
+            type: 'mesh3d',
+            x: [0, 1, 2, 0],
+            y: [0, 0, 1, 2],
+            z: [0, 2, 0, 1],
+            i: [0, 0, 0, 1],
+            j: [1, 2, 3, 2],
+            k: [2, 3, 1, 3],
+            intensity: [0, 0.33, 0.66, 3]
+        }])
+        .then(function() {
+            _assert([true, 0, 3], [true, 0, 3]);
+
+            return Plotly.restyle(gd, 'cmin', 0);
+        })
+        .then(function() {
+            _assert([false, 0, 3], [false, 0, 3]);
+
+            return Plotly.restyle(gd, 'cmax', 10);
+        })
+        .then(function() {
+            _assert([false, 0, 10], [false, 0, 10]);
+
+            return Plotly.restyle(gd, 'cauto', true);
+        })
+        .then(function() {
+            _assert([true, 0, 3], [true, 0, 3]);
+
+            return Plotly.purge(gd);
+        })
+        .catch(fail)
+        .then(done);
+    });
+});