Function centroid

centroid(out: vec2.Vec2, a: vec2.Vec2, b: vec2.Vec2, c: vec2.Vec2): vec2.Vec2
Computes the centroid of the triangle (a, b, c).
Parameters
- out: vec2.Vec2
  the output vector to store the result.
- a: vec2.Vec2
  the first vertex of the triangle.
- b: vec2.Vec2
  the second vertex of the triangle.
- c: vec2.Vec2
  the third vertex of the triangle.
Returns vec2.Vec2
out.
- Defined in shapes/triangle2.ts:39