spherical2xy#

StereographicProjection.spherical2xy(azimuth: Union[ndarray, list, tuple, float], polar: Union[ndarray, list, tuple, float], degrees: bool = False) → Tuple[ndarray, ndarray][source]#

Return stereographic coordinates (X, Y) from 3D unit vectors created from spherical coordinates, azimuth \(\phi\) and polar \(\theta\), defined as in the ISO 31-11 standard [Weisstein, 2005].

Parameters:

azimuth: Spherical azimuth coordinate.
polar: Spherical polar coordinate.
degrees: If True, the coordinates are assumed to be in degrees. Default is False.

Returns:

x: Stereographic coordinate X of shape same shape as the input vector shape. Only the vectors with z coordinate positive (pole = -1) or negative (pole = 1) are returned.
y: Stereographic coordinate Y of shape same shape as the input vector shape. Only the vectors with z coordinate positive (pole = -1) or negative (pole = 1) are returned.