[GitHub] [incubator-echarts] DuskMount commented on issue #9874: 建议series[i]-line.sampling可以同时返回两个值，最大值和最小值

[GitBox]

DuskMount commented on issue #9874:
URL: 
https://github.com/apache/incubator-echarts/issues/9874#issuecomment-705622713


   It is useful to show both max and min value in a frame when ploting audio 
signal.
   If just using "max" or "min" method, the signal will be distorted.
   
   _original signal without sampling_
   ![Screen 
Capture_select-area_20201008221422](https://user-images.githubusercontent.com/47274401/95474796-22f44b80-09b8-11eb-97c2-f03efc622dc0.png)
   
   _signal with sampling "max"_
   ![Screen 
Capture_select-area_20201008222220](https://user-images.githubusercontent.com/47274401/95474858-31dafe00-09b8-11eb-9a52-ba593c0ef97c.png)
   
   _signal with sampling "min"_
   ![Screen 
Capture_select-area_20201008223631](https://user-images.githubusercontent.com/47274401/95474642-ee808f80-09b7-11eb-9871-2188d59b7efb.png)
   


----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

For queries about this service, please contact Infrastructure at:
us...@infra.apache.org



---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscr...@echarts.apache.org
For additional commands, e-mail: commits-h...@echarts.apache.org