OEGeom3DAngleCoord

template<class T>
void OEGeom3DAngleCoord(T *dst, const T *center, const T *r1, T ang, T len)
template<class T>
void OEGeom3DAngleCoord(T *dst, const T *center, const T *r1, const T *n, T ang,
                        T len)

Calculates cartesian coordinate point dst that has a distance of len from the point center, and the vector \((dst-center)\) forms an angle of ang radians with the vector \((r1-center)\). The second form places it on (or to the closest possible to) the plane defined by the normal n. The first form chooses the normal to be either the x or the y coordinate based on the proximity of \((r1-center)\) to these axes.