javascript - How to determine if a point is in a closed path in svg?

Question

How to determine whether a point is in a closed path of svg?

How to know the coordinates of a point on a web page to know whether the point is within a closed area of ​​an irregular path in the entire page

Answer 1

Can it be calculated based on the coordinates of the point and the coordinates of the svg?

Answer 2

You need to map the global coordinates of the points to the relative coordinates of the svg, then turn the svg polygon into a set of points, and then use a method similar to this to make a judgment: https://github.com/substack/p...