direlev_to_xyz

direlev_to_xyz(p_direlev, deg=False)

Convert spherical coordinate with CNES convention to unit cartesian vector

CNES convention :

• elevation angle is the angle between vector and plane (y,z)
• direction is angle between y axis and projection vector in plane (y,z)

Parameters:p_direlev (numpy array with shape (n,2)) – array of spherical coordinate direction and elevation

:return : array of unit cartesian vector :rtype : numpy array with shape (n,3)