DynamicMatrixTransform

class astropy.coordinates.transformations.DynamicMatrixTransform(fromsys, tosys, matrix_func, priority=1, register=True)

Bases: astropy.coordinates.transformations.CoordinateTransform

A coordinate transformation specified as a function that yields a 3 x 3 cartesian transformation matrix.

Parameters :

fromsys : class

The coordinate system class to start from.

tosys : class

The coordinate system class to transform into.

matrix_func: callable :

A callable that accepts a coordinate object and yields the 3 x 3 matrix that converts it to the new coordinate system.

priority : number

The priority if this transform when finding the shortest coordinate tranform path - large numbers are lower priorities.

Raises :

TypeError :

If matrix_func is not callable