sph.py 文件源码

def cart2sph(x, y, z):
    '''Converts cartesian coordinates x, y, z to spherical coordinates az, el, r.'''
    hxy = _np.hypot(x, y)
    r = _np.hypot(hxy, z)
    el = _np.arctan2(z, hxy)
    az = _np.arctan2(y, x)
    return az, el, r