[Feature] 希望添加一个事件去控制动画停留在某一刻（seek）

[nanzhiji]

What problem does this feature solve?

在云编辑器类似的项目中引入表格。因为有时间轴的概念，所以需要知道每一帧时图表呈现的状态。

What does the proposed API look like?

如同animate.js中seek()

[echarts-bot]

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

TRANSLATED

TITLE

[Feature] Want to add an event to control the animation to stay in a certain moment (seek)

BODY

What problem does this feature solve?

Introduce tables in a similar project to the Cloud Editor. Because of the concept of a timeline, it is necessary to know the state of the chart rendering at each frame.

What does the proposed API look like?

As seek() in the animate .js

[nanzhiji]

虽然time-line可以达到相似的效果，但是如果遇到排名柱状图或其他有变化的动画时，就无法实现了。甚至动画都不能暂停在某一刻。所以挺受限制。

[pissang]

@nanzhiji 目前可以通过 mock requestAnimationFrame来实现时间线的控制，但是柱状图排序动画这种涉及到多个动画序列的组合以及其中每个动画序列结束时回调函数的调用，会复杂很多

[nanzhiji]

实际应用中，编辑器形式的项目，帧率并不是根据浏览器 1S60帧。是存在1S25帧，30帧等由项目本身确定的帧率。所以requestAnimationFrame或许并不适用。 也就是说，现在对于一般用到的图标。我选取time-line的方式实现，或许是唯一的办法，对么。

[nanzhiji]

而且突然发现好像timeLine对于折线图，饼图等。想要控制时间线。已知帧率，持续时间，获取某一时刻（某一帧）的动画状态也无法实现。

[pissang]

不太明白你说的 timeline 具体指的是什么