折线图 动态更新添加最新一条数据；线条僵硬出现，而不是缓慢A点到B点

[zhanghengda]

Version

5.0.1

Steps to reproduce

我做分时图 用到这个折现图 动态更新最新数据 ；这个时候虽然有动画控制，但是点和线脱离，线不是A到B点缓慢画出，而是直接展示，不怎么丝滑

What is expected?

希望可以达到 A点到B点 单个更新数据 丝滑的效果；转折点跟线头一直 划线，就好比一个铅笔在纸上画线一样
借鉴这个网站效果 https://m.expertoption.com/?_ga=2.143304819.754953740.1597663708-1250194983.1597475700

What is actually happening?

有点僵硬 ，线和点脱离

[echarts-bot]

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[echarts-bot]

@zhanghengda It seems you are not using English, I've helped translate the content automatically. To make your issue understood by more people, we'd like to suggest using English next time. 🤗

TRANSLATED

TITLE

The line chart is dynamically updated to add the latest data; the line appears stiff, instead of slow from point A to point B

BODY

Version

5.0.1

Steps to reproduce

I used this discounted chart for the time-sharing chart to dynamically update the latest data; although there is animation control at this time, the point and the line are separated. The line is not drawn slowly from point A to point B, but displayed directly, not very silky

What is expected?

I hope to achieve the silky effect of single update data from point A to point B; the turning point is drawn with the end of the line, just like a pencil drawing a line on paper
Learn from the effect of this website https://m.expertoption.com/?_ga=2.143304819.754953740.1597663708-1250194983.1597475700

What is actually happening?

A bit stiff, the line and the point are separated

[wf123537200]

这个是不是和 #15042 一样？

[zhanghengda]

这个是不是和 #15042 一样？

是的 是的 ；谢谢

[github-actions]

This issue has been automatically marked as stale because it did not have recent activity. It will be closed in 7 days if no further activity occurs. If you wish not to mark it as stale, please leave a comment in this issue.

[github-actions]

This issue has been automatically closed because it did not have recent activity. If this remains to be a problem with the latest version of Apache ECharts, please open a new issue and link this to it. Thanks!