jiawulin001 commented on issue #17350:
URL: https://github.com/apache/echarts/issues/17350#issuecomment-1181271755

   ## Conclusion
   Adding a method `getLegendIcon()` to scatterSeriesModel can solve this 
problem. Submitting a PR to solve this.
   
   ## Problem location
   <details>
   <summary>More info</summary>
   
   Interesting enough, I've found that line series would not have such problem 
becasue of a judgement here:
   
https://github.com/apache/echarts/blob/add11459ee43a56f7ff5b300c76b3f801f59f3c6/src/component/legend/LegendView.ts#L371
   Since the method `getLegendIcon()` exists only in `LineSeriesModel` and 
`MapSeries`, the judgement is not satisfied for scatter chart so the icons 
styles are not inheritated.
   </details>
   


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