Orbiting About a Point in 2D

We can orbit around a point in 2D by using the trigonometry , and functions.

If we want to orbit around some point, for example, the origin at point , then at some angle , and radius , we can compute the point units away at angle from the origin point:

For any other origin point , then the point will be:

Notes

This can be useful for:

  • Camera (the point radius away from origin) which orbits around a subject (at origin )

 

Demo

Here is a quick demonstration of how the orbit would look like in 2D: