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myChart.on('click',function(cs){alert(ce);});
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请问merge接口是指针对dataset（数据）的吗？series发生了变化，调用merge接口，图表未变化。
如果要更新series的渲染，是不是只能通过option的属性接口？
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### Version
5.3.0（actually all 5.x versions have this bug）
### Link to Minimal Reproduction
_No response_
### Steps to Reproduce
copy this code to create a gantt chart, when version is 4.+ the xA…
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### One-line summary [问题简述]
As checked the demo/echarts-examples for echart3/echart4, there is no any demo of ribbon chord.
I found echart2 has demo on supporting ribbon chord. But the demo …
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### What problem does this feature solve?
echart4.0不支持折线图从左到右出现的动画效果，老版本是有的
### What does the proposed API look like?
echart4.0不支持折线图从左到右出现的动画效果，老版本是有的
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### Version
5.2.0+
### Link to Minimal Reproduction
_No response_
### Steps to Reproduce
公司旧项目使用的是echart4的库，新项目升级echart后发现图标显示异常，设置dataZoom后错位了,在5.2.0以上版本显示异常
具体代码如下：
```js
option = {
c…
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### One-line summary [问题简述]
echart4， svg渲染中toolbox，hover图标不显示title。
控制台，也未能查询到title相应的标签
### Version & Environment [版本及环境]
+ ECharts version [ECharts 版本]: version 4.1.0.rc2
+ Browser …
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echarts X轴分区填充不同颜色
浏览器引入echarts.js 版本echart4
希望实现X轴不同区域填充不同颜色，效果如图，求大神帮忙
https://github.com/kimmyXu/incubator-echarts/blob/master/11.png
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# Issue
When an interactive chart is created in a slide the selection for interactive items is not in the correct position.
The interactive graph needs to be wrapped in a `widgetframe` and the …
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- [x] I am using English in this issue. 在这个 Issue 中我使用了英文（强烈建议）。
## General Questions
- [ ] Required: I have read the document and examples and tried to solve it by myself. （必填）我读过…