vector2xy_split

static StereographicProjection.vector2xy_split(v: Vector3d) → Tuple[ndarray, ndarray, ndarray, ndarray]

Return two sets of stereographic coordinates (X, Y) from 3D unit vectors: one set for vectors in the upper hemisphere, and one for the lower.

Parameters:

v

If it is not a unit vector, it will be made into one.

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