Ordinal#getExtentSize => Ordinal#count

src/coord/Axis.js

@@ -88,7 +88,7 @@ define(function (require) {
 
             var extent = this.getExtent();
             if (this.onBand) {
-                fixExtentWithBands(extent, this.scale.getExtentSize());
+                fixExtentWithBands(extent, this.scale.count());
             }
 
             return linearMap(data, [0, 1], extent, clamp);
@@ -104,7 +104,7 @@ define(function (require) {
             var extent = this.getExtent();
 
             if (this.onBand) {
-                fixExtentWithBands(extent, this.scale.getExtentSize());
+                fixExtentWithBands(extent, this.scale.count());
             }
 
             var t = linearMap(mapped, extent, [0, 1], clamp);
@@ -161,7 +161,7 @@ define(function (require) {
         getBands: function () {
             var extent = this._extent;
             var bands = [];
-            var len = this.scale.getExtentSize() + 1;
+            var len = this.scale.count() + 1;
             var start = extent[0];
             var end = extent[1];
             var size = end - start;

src/coord/polar/polarCreator.js

@@ -143,7 +143,7 @@ define(function (require) {
                 setAxis(angleAxis, angleAxisModel);
 
                 if (angleAxis.type === 'category' && ! angleAxis.onBand) {
-                    var angle = 360 - 360 / (angleAxis.scale.getExtentSize() + 1);
+                    var angle = 360 - 360 / (angleAxis.scale.count() + 1);
                     angleAxis.setExtent(0, angle);
                 }
 

src/scale/Ordinal.js

@@ -111,7 +111,7 @@ define(function (require) {
         /**
          * @return {number}
          */
-        getExtentSize: function () {
+        count: function () {
             return this._extent[1] - this._extent[0];
         },
 

test/polarLine.html

@@ -30,7 +30,7 @@
                 var data2 = [];
                 var data3 = [];
 
-                for (var i = 0; i < 20; i++) {
+                for (var i = 0; i < 10; i++) {
                     xAxisData.push('类目' + i);
                     data1.push(Math.random() * 2);
                     data2.push(Math.random());