fix bug #11528 Modify default value of tooltip and label

src/chart/helper/labelHelper.js

@@ -25,7 +25,8 @@ import {retrieveRawValue} from '../../data/helper/dataProvider';
  * @return {string} label string. Not null/undefined
  */
 export function getDefaultLabel(data, dataIndex) {
-    var labelDims = data.mapDimension('defaultedLabel', true);
+    var dataDimsLen = data.dimensions.length;
+    var labelDims = data.mapDimension(dataDimsLen > 2 ? data.dimensions[dataDimsLen - 1] : 'defaultedLabel', true);
     var len = labelDims.length;
 
     // Simple optimization (in lots of cases, label dims length is 1)

src/model/Series.js

@@ -395,7 +395,8 @@ var SeriesModel = ComponentModel.extend({
         }
 
         var data = this.getData();
-        var tooltipDims = data.mapDimension('defaultedTooltip', true);
+        var dataDimsLen = data.dimensions.length;
+        var tooltipDims = data.mapDimension(dataDimsLen > 2 ? data.dimensions[dataDimsLen - 1] : 'defaultedTooltip', true);
         var tooltipDimLen = tooltipDims.length;
         var value = this.getRawValue(dataIndex);
         var isValueArr = zrUtil.isArray(value);