I want to know the intersection point of a curve and a straight line as shown in the picture above.
However, I know that the curve drawn in three.js is made up of many vertices and is drawn in an illusion like a curve.
How can I find the intersection point in this case?
As an option, check intersection of that straight line against all the line segments that form the curve.
Terrible option
I’d leave it as a last resort.
Well, you can write your own implementation of finding the intersection of a line against different types of curve (line, arc, bezier, catmull-rom etc.), which highly likely will be more performant, thus, way complex (but the tougher the challenge, the more fun 
).
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