colour.algebra.cartesian_to_polar¶
-
colour.algebra.
cartesian_to_polar
(a)[source]¶ Transforms given Cartesian coordinates array \(xy\) to Polar coordinates array \(\rho\phi\) (radial coordinate, angular coordinate).
- Parameters
a (array_like) – Cartesian coordinates array \(xy\) to transform.
- Returns
Polar coordinates array \(\rho\phi\).
- Return type
ndarray
References
Examples
>>> a = np.array([3, 1]) >>> cartesian_to_polar(a) array([ 3.1622776..., 0.3217505...])