angles_to_x

pydl.pydlutils.mangle.angles_to_x(points, latitude=False)

Convert spherical angles to unit Cartesian vectors.

Parameters:

pointsndarray

A set of angles in the form phi, theta (in degrees).

latitudebool, optional

If True, assume that the angles actually represent longitude, latitude, or equivalently, RA, Dec.

Returns:

ndarray

The corresponding Cartesian vectors.