[GitHub] wandouni opened a new issue #8231: 多条可拖拽曲线，取消其他图例后，曲线因为scale,位置变化，graphic点还在原位置，导致拖拽失效

[GitBox]

wandouni opened a new issue #8231: 
多条可拖拽曲线，取消其他图例后，曲线因为scale,位置变化，graphic点还在原位置，导致拖拽失效
URL: https://github.com/apache/incubator-echarts/issues/8231
 
 
   ### One-line summary [问题简述]
   多条可拖拽曲线，取消其他图例后，曲线因为scale,位置变化，graphic点还在原位置，导致拖拽失效
   
   
   
   
   ### Version & Environment [版本及环境]
   + ECharts version [ECharts 版本]:    "echarts": "^3.8.5","echarts-for-react": 
"^2.0.6",
   + Browser version [浏览器类型和版本]:   Chrome
   + OS Version [操作系统类型和版本]:   win10
   
   
   
   
   
   ### Expected behaviour [期望结果]
   曲线scale后，还能拖拽，或者提供一个scale的事件监听。
   
   
   
   
   ### ECharts option [ECharts配置项]
   <!-- Copy and paste your 'echarts option' here. -->
   <!-- [下方贴你的option，注意不要删掉下方 ```javascript 和 尾部的 ``` 字样。最好是我们能够直接运行的 
option。如何得到能运行的 option 参见上方的 guidelines for contributing] -->
   ```javascript
   var symbolSize = 20;
   var data = [[15, 10], [-50, 10], [-56.5, 20], [-46.5, 30], [-22.1, 40]];
   
   option = {
       title: {
           text: 'Try Dragging these Points'
       },
       legend:{show:true},
       tooltip: {
           triggerOn: 'none',
           formatter: function (params) {
               return 'X: ' + params.data[0].toFixed(2) + '<br>Y: ' + 
params.data[1].toFixed(2);
           }
       },
       grid: {
       },
       xAxis: {
           min: -100,
           max: 80,
           type: 'value',
           axisLine: {onZero: false}
       },
       yAxis: {
           scale:true,
           type: 'value',
           axisLine: {onZero: false}
       },
       series: [
           {
               id: 'a',
               name:'a',
               type: 'line',
               smooth: true,
               symbolSize: symbolSize,
               data: data
           },
           {
               type: 'line',
               name:'b',
               smooth: true,
               symbolSize: symbolSize,
               data: [[15, 20], [-50, 100], [-56.5, 200], [-46.5, 300], [-22.1, 
400]]
           }
       ]
   };
   
   
   if (!app.inNode) {
       setTimeout(function () {
           // Add shadow circles (which is not visible) to enable drag.
           myChart.setOption({
               graphic: echarts.util.map(data, function (item, dataIndex) {
                   return {
                       type: 'circle',
                       position: myChart.convertToPixel('grid', item),
                       shape: {
                           cx: 0,
                           cy: 0,
                           r: symbolSize / 2
                       },
                       invisible: true,
                       draggable: true,
                       ondrag: echarts.util.curry(onPointDragging, dataIndex),
                       z: 100
                   };
               })
           });
       }, 0);
   
       window.addEventListener('resize', updatePosition);
   }
   
   myChart.on('dataZoom', updatePosition);
   
   function updatePosition() {
       myChart.setOption({
           graphic: echarts.util.map(data, function (item, dataIndex) {
               return {
                   position: myChart.convertToPixel('grid', item)
               };
           })
       });
       console.log('ttt')
   }
   
   function onPointDragging(dataIndex, dx, dy) {
       data[dataIndex] = myChart.convertFromPixel('grid', this.position);
   
       // Update data
       myChart.setOption({
           series: [{
               id: 'a',
               data: data
           }]
       });
       console.log('ssss')
   }
   
   
   ```
   
   
   
   
   ### Other comments [其他信息]
   [link]( http://www.echartsjs.com/gallery/editor.html?c=line-draggable)
   
   

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