sunburst Rotation

src/traces/sunburst/attributes.js

@@ -203,6 +203,7 @@ module.exports = {
             'this option won\'t have any effect and `insidetextfont` would be used.'
         ].join(' ')
     }),
+    rotation: pieAttrs.rotation,
     sort: pieAttrs.sort,
 
     domain: domainAttrs({name: 'sunburst', trace: true, editType: 'calc'})

src/traces/sunburst/defaults.js

@@ -75,6 +75,8 @@ module.exports = function supplyDefaults(traceIn, traceOut, defaultColor, layout
 
     coerce('sort');
 
+    coerce('rotation');
+
     handleDomainDefaults(traceOut, layout, coerce);
 
     // do not support transforms for now

src/traces/sunburst/plot.js

@@ -220,6 +220,10 @@ function plotOne(gd, cd, element, transitionOpts) {
             s.style('pointer-events', 'all');
         });
 
+        var extraAngle = trace.rotation * Math.PI / 180;
+        pt.x0 = pt.x0 + extraAngle;
+        pt.x1 = pt.x1 + extraAngle;
+
         pt.rpx0 = y2rpx(pt.y0);
         pt.rpx1 = y2rpx(pt.y1);
         pt.xmid = (pt.x0 + pt.x1) / 2;