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根据XY点返回 xy轴上的值 #3449

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ValueLan opened this issue May 31, 2021 · 1 comment

ValueLan commented May 31, 2021

I have searched the issues of this repository and believe that this is not a duplicate.

What problem does this feature solve?

K线的时候可以画出当前鼠标的值

What does the proposed API look like?

根据XY点返回 xy轴上的值

Member

hustcc commented Sep 30, 2021

首先监听 mousemove 事件，获取鼠标的 x y 位置
然后 x y 位置可以通过 coordinate 转化成归一化的坐标（0 ～ 1 范围）
然后归一化的 x y 分别用 scaleX、scaleY 做 invert 操作，就可以拿到 x y 实际的值了

hustcc closed this as completed

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