Find a point along a circles edge

Question

As I have tried to demonstrate in the above image, I am trying to find Cartesian coordinates along a circles edge.

I have a heading angle in radians from the center of the circle and I have the magnitude of a vector point outwards along that angle that I can set to any length. Call this simply R as radius of the circle. I also have the center point of the circle as J.

Using this information, how could I find the Cartesian coordinates for any given angle, any given J, and any given R so that I could draw a line from point (x, y) eg = (0, 0) to the coordinates.

Thanks heaps for the help.

Answer 1

This turned out easier than I was making it out to be, and I'll probably get down voted alot for posting a somewhat stupid question, but for any others who have this question. I found the answer:

(x, y) that you want to find along a circles edge is equal to =

x = circleCenterX + radius * cos(angleInRadians)

y = circleCenterY + radius * sin(angleInRadians)