Point::Angle

inline T Angle(T x2, T y2) const;
inline T Angle(const Point<T> & pt) const;

Description

Angle calculates the angle, in radians, between the current Point and a passed point.

The following expression is used to determine the result:

   arctangent of (y2 - y) / (x2 - x);

implemented as:

   atan2(y2-y, x2-x).

Parameters

Parameters	Description
T x2	The x-coordinate of the point parameter passed in.
T y2	The y-coordinate of the point parameter passed in.
const Point<T> & pt	A point parameter: the angle between pt and the Point variable will be calculated.

Return Value

A value containing the angle, in radians, between the current point and passed point.