colour.algebra.spherical_to_cartesian#

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

Transform given spherical coordinates array \(\rho\theta\phi\) (radial distance, inclination or elevation and azimuth) to cartesian coordinates array \(xyz\).

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

References

[Wikipedia06a], [Wikipedia05e]

Examples

>>> a = np.array([6.78232998, 0.48504979, 0.32175055])
>>> spherical_to_cartesian(a)  
array([ 3.0000000...,  0.9999999...,  5.9999999...])