Merge pull request #10123 from deqingli/master

Fixes #10088

src/chart/pie/PieView.js

@@ -212,7 +212,7 @@ piePieceProto._updateLabel = function (data, idx) {
     var labelLayout = layout.label;
     var visualColor = data.getItemVisual(idx, 'color');
 
-    if (!labelLayout) {
+    if (!labelLayout || isNaN(labelLayout.x) || isNaN(labelLayout.y)) {
         labelText.ignore = labelText.normalIgnore = labelText.hoverIgnore =
         labelLine.ignore = labelLine.normalIgnore = labelLine.hoverIgnore = true;
         return;

test/aria-pie.html

@@ -90,7 +90,7 @@ under the License.
                     legend: {
                         orient: 'vertical',
                         left: 'left',
-                        data: ['直接访问','邮件营销','联盟广告','视频广告','搜索引擎']
+                        data: ['直接访问','邮件营销','联盟广告','视频广告(value is null)','搜索引擎']
                     },
                     series : [
                         {
@@ -102,7 +102,7 @@ under the License.
                                 {value:335, name:'直接访问'},
                                 {value:310, name:'邮件营销'},
                                 {value:234, name:'联盟广告'},
-                                {value:135, name:'视频广告'},
+                                {value:null, name:'视频广告(value is null)'},
                                 {value:1548, name:'搜索引擎'}
                             ],
                             itemStyle: {