Add group to plot

Author: rreusser

src/plots/cartesian/index.js

@@ -63,8 +63,11 @@ exports.plot = function(gd, traces, transitionOpts, makeOnCompleteCallback) {
             // Skip trace if whitelist provided and it's not whitelisted:
             // if (Array.isArray(traces) && traces.indexOf(i) === -1) continue;
             if(trace.xaxis + trace.yaxis === subplot) {
+                // XXX: Should trace carpet dependencies. Only replot all carpet plots if the carpet
+                // axis has actually changed:
+                //
                 // If this trace is specifically requested, add it to the list:
-                if(traces.indexOf(trace.index) !== -1) {
+                if(traces.indexOf(trace.index) !== -1 || trace.carpet) {
                     // Okay, so example: traces 0, 1, and 2 have fill = tonext. You animate
                     // traces 0 and 2. Trace 1 also needs to be updated, otherwise its fill
                     // is outdated. So this retroactively adds the previous trace if the
@@ -300,6 +303,7 @@ function makeSubplotLayer(plotinfo) {
         joinLayer(parent, 'g', 'imagelayer');
         joinLayer(parent, 'g', 'maplayer');
         joinLayer(parent, 'g', 'barlayer');
+        joinLayer(parent, 'g', 'carpetlayer');
         joinLayer(parent, 'g', 'boxlayer');
         joinLayer(parent, 'g', 'scatterlayer');
     }