[GitHub] [incubator-echarts] liyunying opened a new issue #11739: 地图迁徙图，线的绘制问题

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

liyunying opened a new issue #11739: 地图迁徙图，线的绘制问题
URL: https://github.com/apache/incubator-echarts/issues/11739
 
 
   
   ![6edf47bcd8b70cd69b7bf631896d249](https://user-images.githubusercontent.com/25221066/69837686-f5fce580-128a-11ea-9191-75f9571214a6.png)
   ### Version
   4.3.0
   
   ### Steps to reproduce
   ```
   series.push({
           name: item[0]   ' Top10',
           type: 'lines',
           zlevel: 1,
           effect: {
               show: true,
               period: 1, // 此处时间调短，距离越长的线，渲染成了点点点
               trailLength: 0.7,
               color: '#fff',
               symbolSize: 3
           },
           lineStyle: {
               normal: {
                   color: color[i],
                   width: 0,
                   curveness: 0.2
               }
           },
           data: convertData(item[1])
       },
   ```
   
   ### What is expected?
   不要出现点点点, 就是正常的线。
   
   ### What is actually happening?
   出现了点点点
   
   <!-- This issue is generated by echarts-issue-helper. DO NOT REMOVE -->
   

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