colour.algebra.polar_to_cartesian#

colour.algebra.polar_to_cartesian(a: ArrayLike) → NDArrayFloat[source]#

Transform given polar coordinates array \(\rho\phi\) (radial coordinate, angular coordinate) to cartesian coordinates array \(xy\).

Parameters:: a (ArrayLike) – Polar coordinates array \(\rho\phi\) to transform, \(\rho\) is in range [0, +inf], \(\phi\) is in range [-pi, pi] radians i.e., [-180, 180] degrees.
Returns:: Cartesian coordinates array \(xy\).
Return type:: numpy.ndarray

References

Examples

>>> a = np.array([3.16227766, 0.32175055])
>>> polar_to_cartesian(a)  
array([ 3.        ,  0.9999999...])