Distance Between Center To Any Point On Edge Of Rectangle In Javascript

As you can see in above picture, suppose that there is a ray emitted from center and collides at edge of rectangle. so I want to calculate at which point it collides, so that I co

Solution 1:

Let's center is (0, 0) and ray angle is phi. Pseudocode:

c = Cos(phi)
s = Sin(phi)
if Width * Abs(s) < Height * Abs(c) then
   x = Sign(c) * Width / 2
   y = Tan(phi) * x
else
   y = Sign(s) * Height / 2
   x = CoTan(phi) * y