Transition gl2d plot type to new title attr structure [882]

Author: rmoestl

src/plots/gl2d/convert.js

@@ -113,14 +113,14 @@ proto.merge = function(options) {
         // '_name' is e.g. xaxis, xaxis2, yaxis, yaxis4 ...
         ax = options[this.scene[axisName]._name];
 
-        axTitle = ax.title === this.scene.fullLayout._dfltTitle[axisLetter] ? '' : ax.title;
+        axTitle = ax.title.text === this.scene.fullLayout._dfltTitle[axisLetter] ? '' : ax.title.text;
 
         for(j = 0; j <= 2; j += 2) {
             this.labelEnable[i + j] = false;
             this.labels[i + j] = axTitle;
-            this.labelColor[i + j] = str2RGBArray(ax.titlefont.color);
-            this.labelFont[i + j] = ax.titlefont.family;
-            this.labelSize[i + j] = ax.titlefont.size;
+            this.labelColor[i + j] = str2RGBArray(ax.title.font.color);
+            this.labelFont[i + j] = ax.title.font.family;
+            this.labelSize[i + j] = ax.title.font.size;
             this.labelPad[i + j] = this.getLabelPad(axisName, ax);
 
             this.tickEnable[i + j] = false;
@@ -208,7 +208,7 @@ proto.hasAxisInAltrPos = function(axisName, ax) {
 
 proto.getLabelPad = function(axisName, ax) {
     var offsetBase = 1.5,
-        fontSize = ax.titlefont.size,
+        fontSize = ax.title.font.size,
         showticklabels = ax.showticklabels;
 
     if(axisName === 'xaxis') {