[GitHub] [echarts] ssthouse commented on issue #15217: 使用树状图tree 的setOptions更新数据后 出现了残留的线图

[GitBox <gi...@apache.org>]

ssthouse commented on issue #15217:
URL: https://github.com/apache/echarts/issues/15217#issuecomment-866711868


   @DtStorm 可以创建一个复现的demo吗，我这边试下来没有复现：
   
   https://echarts.apache.org/examples/zh/editor.html?c=tree-basic
   
   ```javascript
   myChart.showLoading();
   $.get(ROOT_PATH + '/data/asset/data/flare.json', function (data) {
       myChart.hideLoading();
   
       data.children.forEach(function (datum, index) {
           index % 2 === 0 && (datum.collapsed = true);
       });
       
       const option = {
           tooltip: {
               trigger: 'item',
               triggerOn: 'mousemove'
           },
           series: [
               {
                   type: 'tree',
   
                   data: [data],
   
                   top: '1%',
                   left: '7%',
                   bottom: '1%',
                   right: '20%',
   
                   symbolSize: 7,
   
                   label: {
                       position: 'left',
                       verticalAlign: 'middle',
                       align: 'right',
                       fontSize: 9
                   },
   
                   leaves: {
                       label: {
                           position: 'right',
                           verticalAlign: 'middle',
                           align: 'left'
                       }
                   },
   
                   emphasis: {
                       focus: 'descendant'
                   },
   
                   expandAndCollapse: true,
                   animationDuration: 550,
                   animationDurationUpdate: 750
               }
           ]
       };
       
       
   
       myChart.setOption(option);
       
       setTimeout(function() {
           
           const data = option.series[0].data[0];
           data.children.splice(0, 5);
           myChart.setOption(option, true)
       }, 2000);
   });
   ```
   


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