[GitHub] [incubator-echarts] lin-credible opened a new issue #4556: [优化] type: 'line' & smooth: true 的展示待优化

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

lin-credible opened a new issue #4556:
URL: https://github.com/apache/incubator-echarts/issues/4556


   <!--
   为了方便我们能够复现和修复 bug，请遵从下面的规范描述您的问题。
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   #### 问题简述 (One-line summary)
   
   type: 'line' & smooth: true: 一切如图
   
   ![echarts_line](https://cloud.githubusercontent.com/assets/3191641/20613036/bcf29b92-b2fa-11e6-9a95-953a282d158e.png)
   
   
   #### 版本及环境 (Version & Environment)
   + ECharts 版本 (ECharts version): echarts 3
   + 浏览器类型和版本 (Browser version): newest version of firefox & chrome 
   + 操作系统类型和版本 (OS Version): windows 10 & OS X EI Captian
   
   
   #### 重现步骤 (Steps to reproduce)
   1. 准备好对应数据即可
   
   y值:  0, 0, 6000, 6000, 6000, 0, 0   ......    0, 0, 2000, 2000, 2000, 0, 0  (制造这样的波峰波谷即可看到效果)
   
   #### 期望结果 (Expected behaviour)
   
   #### 可能哪里有问题 (What went wrong)
   
   smooth的算法待优化，从当前效果的展示来看，value越大，平滑度越小，但是有时候视图数据量很小，这种误差效果太明显，严重影响体验。
   
   #### ECharts配置项 (ECharts option)
   <!-- 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
   -->
   
   > 主要看 series
   ```javascript
   option = {
       ...
       series: [
                       {
                           type: 'line',
                           smooth: true,
                           symbol: 'emptyCircle',
                           symbolSize: 8,
                           lineStyle: {
                               normal: {
                                   width: 2.5,
                                   color: '#4a90e2'
                               }
                           },
                         ...
                     }
                  ]
   }
   
   ```
   
   
   #### 其他信息 (Other comments)
   <!-- 例如，截图或线上实例 (JSFiddle/JSBin/Codepen) (For example: Screenshot or Online demo) -->
   
   `smooth: true`:
   ![smooth_true](https://cloud.githubusercontent.com/assets/3191641/20613351/25c0bd5e-b2fe-11e6-82a2-e9481e5a6e32.png)
   
   `smooth: false`:
   ![smooth_false](https://cloud.githubusercontent.com/assets/3191641/20613358/2e968ada-b2fe-11e6-8135-a167804575e6.png)
   
   


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[GitHub] [incubator-echarts] stale[bot] commented on issue #4556: [优化] type: 'line' & smooth: true 的展示待优化

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

stale[bot] commented on issue #4556:
URL: https://github.com/apache/incubator-echarts/issues/4556#issuecomment-671851717


   This issue is marked to be `stale` and is going to be closed within a week. If you think it shouldn't be closed, please leave a comment.
   


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