colour.algebra.cylindrical_to_cartesian#

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

Transform given cylindrical coordinates array \(\rho\phi z\) (radial distance, azimuth and height) to cartesian coordinates array \(xyz\).

Parameters:

a (ArrayLike) – Cylindrical coordinates array \(\rho\phi z\) to transform, \(\rho\) is in range [0, +inf], \(\phi\) is in range [-pi, pi] radians i.e. [-180, 180] degrees, \(z\) is in range [0, +inf].

Returns:

Cartesian coordinates array \(xyz\).

Return type:

numpy.ndarray

References

[Wikipedia06a], [Wikipedia05e]

Examples

>>> a = np.array([3.16227766, 0.32175055, 6.00000000])
>>> cylindrical_to_cartesian(a)  
array([ 3.        ,  0.9999999...,  6.        ])