array parts get the same replot type as the whole array

Author: alexcjohnson

src/plot_api/plot_api.js

@@ -1599,7 +1599,10 @@ function _restyle(gd, aobj, _traces) {
             flags.docolorbars = true;
         }
 
-        if(recalcAttrs.indexOf(ai) !== -1) {
+        var aiArrayStart = ai.indexOf('['),
+            aiAboveArray = aiArrayStart === -1 ? ai : ai.substr(0, aiArrayStart);
+
+        if(recalcAttrs.indexOf(aiAboveArray) !== -1) {
             // major enough changes deserve autoscale, autobin, and
             // non-reversed axes so people don't get confused
             if(['orientation', 'type'].indexOf(ai) !== -1) {
@@ -1622,8 +1625,8 @@ function _restyle(gd, aobj, _traces) {
             }
             flags.docalc = true;
         }
-        else if(replotAttrs.indexOf(ai) !== -1) flags.doplot = true;
-        else if(autorangeAttrs.indexOf(ai) !== -1) flags.docalcAutorange = true;
+        else if(replotAttrs.indexOf(aiAboveArray) !== -1) flags.doplot = true;
+        else if(autorangeAttrs.indexOf(aiAboveArray) !== -1) flags.docalcAutorange = true;
     }
 
     // do we need to force a recalc?

test/jasmine/tests/plot_api_test.js

@@ -283,6 +283,28 @@ describe('Test plot api', function() {
             expect(gd._fullData[1].marker.color).toBe(colorDflt[1]);
         });
 
+        it('should redo auto z/contour when editing z array', function() {
+            var gd = {
+                data: [{type: 'contour', z: [[1, 2], [3, 4]]}]
+            };
+
+            mockDefaultsAndCalc(gd);
+
+            expect(gd.data[0].zauto).toBe(true);
+            expect(gd.data[0].zmin).toBe(1);
+            expect(gd.data[0].zmax).toBe(4);
+
+            expect(gd.data[0].autocontour).toBe(true);
+            expect(gd.data[0].contours).toEqual({start: 0.5, end: 3.5, size: 0.5});
+
+            Plotly.restyle(gd, {'z[0][0]': 10});
+
+            expect(gd.data[0].zmin).toBe(2);
+            expect(gd.data[0].zmax).toBe(10);
+
+            expect(gd.data[0].contours).toEqual({start: 3, end: 9, size: 1});
+        });
+
     });
 
     describe('Plotly.deleteTraces', function() {