Emgu CV Library Documentation
cvCartToPolar Method
NamespacesEmgu.CVCvInvokecvCartToPolar()()()

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cvCartToPolar(IntPtr, IntPtr, IntPtr, IntPtr, Int32)
Calculates either magnitude, angle, or both of every 2d vector (x(I),y(I)): magnitude(I)=sqrt( x(I)2+y(I)2 ), angle(I)=atan( y(I)/x(I) ) The angles are calculated with ~0.1 degree accuracy. For (0,0) point the angle is set to 0

cvCartToPolar(IntPtr, IntPtr, IntPtr, IntPtr, Boolean)
Calculates either magnitude, angle, or both of every 2d vector (x(I),y(I)): magnitude(I)=sqrt( x(I)2+y(I)2 ), angle(I)=atan( y(I)/x(I) ) The angles are calculated with ~0.1 degree accuracy. For (0,0) point the angle is set to 0

Assembly: Emgu.CV (Module: Emgu.CV) Version: 1.5.0.0 (1.5.0.0)