[GitHub] xianxianya opened a new issue #9004: 桑葚图visualMap设置图形无效果，桑葚图是否支持将矩形图形设置为圆形？

[GitBox]

xianxianya opened a new issue #9004: 桑葚图visualMap设置图形无效果，桑葚图是否支持将矩形图形设置为圆形？
URL: https://github.com/apache/incubator-echarts/issues/9004
 
 
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   ### One-line summary [问题简述]
   桑葚图visualMap设置图形无效果，桑葚图是否支持将矩形图形设置为圆形？
   
   
   
   
   ### Version & Environment [版本及环境]
   + ECharts version [ECharts 版本]:3.0&4.0
   + Browser version [浏览器类型和版本]:chrome
   + OS Version [操作系统类型和版本]:windows
   
   
   
   
   
   ### Expected behaviour [期望结果]
   将桑葚图sankey矩形设置为圆形
   
   
   
   
   ### 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
   option = {
   
   }
   
   ```
   myChart.setOption(option = {
           title: {
               text: 'Sankey Diagram'
           },
           tooltip: {
               trigger: 'item',
               triggerOn: 'mousemove'
           },
           visualMap:{
               type:'piecewise',
               dimension:0,
               categories:['成功','失败'],
               inRange:{
                   color:['green','red'],
                   symbol:'circle',
                   symbolSize:30
               }
           },
           series: [
               {
                   type: 'sankey',
                   layout: 'none',
                   data: 
[{name:'1',value:['成功']},{name:'2',value:['失败']},{name:'3',value:['成功']},{name:'4',value:['失败']}],
                   links: 
[{source:'1',target:'2',value:1},{source:'1',target:'3',value:1},{source:'3',target:'4',value:1}],
                   itemStyle: {
                       normal: {
                           borderWidth: 1,
                           borderColor: '#aaa'
                       }
                   },
                   lineStyle: {
                       normal: {
                           color: 'source',
                           curveness: 0.5
                       }
                   }
               }
           ]
       });
   
   
   
   ### Other comments [其他信息]
   <!-- For example: Screenshot or Online demo -->
   <!-- [例如，截图或线上实例 (JSFiddle/JSBin/Codepen)] -->
   
   

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