Find the angle of a segment from (point1.x, point1.y) -> (point2.x, point2.y).
Calculates the angle of the vector from the first point to the second point.
The first point.
The second point.
Find the angle of a segment from (point1.x, point1.y) -> (point2.x, point2.y).
Calculates the angle of the vector from the first point to the second point.