Calculates the magnitude and angle of 2D vectors

[mag, ang] = cv.cartToPolar(x, y)
[...] = cv.cartToPolar(..., 'OptionName',optionValue, ...)

Input

• x array of x-coordinates; this must be a single-precision or double-precision floating-point array.
• y array of y-coordinates, that must have the same size and type as x.

Output

• mag output array of magnitudes of the same size and type as x.
• ang output array of angles that has the same size and type as x; the angles are measured in radians (from 0 to 2*pi) or in degrees (0 to 360 degrees).

Options

• Degrees a flag, indicating whether the angles are measured in radians (which is by default), or in degrees. default false

The function cv.cartToPolar calculates either the magnitude, angle, or both for every 2D vector (x(I),y(I)):

magnitude(I) = sqrt(x(I)^2 + y(I)^2)
angle(I) = atan2(y(I), x(I)) [* (180/pi)]

The angles are calculated with accuracy about 0.3 degrees. For the point (0,0), the angle is set to 0.