[GitHub] [incubator-echarts] wf123537200 opened a new pull request #12487: feat(line): hide splitLine, close #12456

[GitBox]

wf123537200 opened a new pull request #12487:
URL: https://github.com/apache/incubator-echarts/pull/12487


   ## Brief Information
   
   This pull request is in the type of:
   
   - [ ] bug fixing
   - [x] new feature
   - [ ] others
   
   
   
   ### What does this PR do?
   
   append a params as follow
   ```
   splitLine: {
                    ...
                       showAsAxis: true,
                    ...
                   }
   ```
   when set the params,  the splitLine will only show when the 
axisLabel.formatter return !value = true
   
   
   
   ### Fixed issues
   
   <!--
   - #12456: xAxis. splitLine Cannot display only at the scale location where 
the label is located实现坐标轴在 grid 区域中的分隔线只显示在标签的位置
   -->
   
   
   ## Details
   
   ### Before: What was the problem?
   
   the split line will show whatever the xAisx is show
   
![image](https://user-images.githubusercontent.com/5130528/80185374-cfc35200-863e-11ea-8e3b-229ebe3fc4df.png)
   
   
   ### After: How is it fixed in this PR?
   
   the split line will show at the xAisx scale location
   
![image](https://user-images.githubusercontent.com/5130528/80185353-c89c4400-863e-11ea-9ea4-88711797b2a6.png)
   
   
   ## Usage
   
   ### Are there any API changes?
   
   - [x] The API has been changed.
   
   append params at axis.splitLine: 
   ```
   splitLine: {
                    ...
                       showAsAxis: true,
                    ...
                   }
   ```
   
   ### Related test cases or examples to use the new APIs
   
   test/axis-interval-splitLine.html
   
   ## Others
   
   ### Merging options
   
   - [ ] Please squash the commits into a single one when merge.
   
   ### Other information
   


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