OEGeom2DSubtract

template<class T>
void OEGeom2DSubtract(T *x, const T *p)
template<class T>
void OEGeom2DSubtract(T *x, const T *p, const T *q)

Two dimensional vector subtraction. The first form computes \(x -= p\) and the second form computes \(x = p - q\).