spherical2xy_split

StereographicProjection.spherical2xy_split(azimuth: ndarray | list | tuple | float, polar: ndarray | list | tuple | float, degrees: bool = False) → Tuple[ndarray, ndarray, ndarray, ndarray]

Return two sets of 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]: one set for vectors in the upper hemisphere, and one for the lower.

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_upper

Stereographic coordinate X of upper hemisphere vectors, of shape same shape as the input vector shape.

y_upper

Stereographic coordinate Y of upper hemisphere vectors, of shape same shape as the input vector shape.

x_lower

Stereographic coordinate X of lower hemisphere vectors, of shape same shape as the input vector shape.

y_lower

Stereographic coordinate Y of lower hemisphere vectors, of shape same shape as the input vector shape.

See also

vector2xy