[GitHub] [incubator-echarts] zhouxin860114 commented on issue #11347: toolTip的formatter属性里，用function自定义时，打印出params.seriesName不能跟配置的系列名对应

Thu, 10 Oct 2019 00:15:26 -0700 

zhouxin860114 commented on issue #11347: 
toolTip的formatter属性里，用function自定义时，打印出params.seriesName不能跟配置的系列名对应
URL: 
https://github.com/apache/incubator-echarts/issues/11347#issuecomment-540426587
 
 
   说得有点乱，总结一下，我估计是这么回事：
   1、你的两个 map series 是重叠的，最上层的 series 是「分组1」
   2、「分组1」显示时，鼠标事件被「分组1」的图形捕获，params 里的 series 是「分组1」，所以自定义的 formatter 
只能显示「分组1」的属性
   3、 默认的 formatter 似乎会遍历所有 series，把有数据的 series 都显示出来，并把数值相加，如下图：
   
![image](https://user-images.githubusercontent.com/8022228/66546429-92e6b080-eb6f-11e9-92cd-944811701d08.png)
   
![image](https://user-images.githubusercontent.com/8022228/66546769-46e83b80-eb70-11e9-8a47-c98df094017b.png)
   
   ```
   formatTooltip: function(dataIndex) {
       // FIXME orignalData and data is a bit confusing
       var data = this.getData();
       var formattedValue = addCommas(this.getRawValue(dataIndex));
       var name = data.getName(dataIndex);
   
       var seriesGroup = this.seriesGroup;
       var seriesNames = [];
       for (var i = 0; i < seriesGroup.length; i++) {
           var otherIndex = seriesGroup[i].originalData.indexOfName(name);
           var valueDim = data.mapDimension('value');
           if (!isNaN(seriesGroup[i].originalData.get(valueDim, otherIndex))) {
               seriesNames.push(
                   encodeHTML(seriesGroup[i].name)
               );
           }
       }
   
       return seriesNames.join(', ') + '<br />' +
           encodeHTML(name + ' : ' + formattedValue);
   },
   ```
   ——————————————————
   图例可以自定义，第一个回答里，我后来贴上的那段代码，就是包含自定义图例的

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