CompositeTransform¶
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class
astropy.coordinates.
CompositeTransform
(transforms, fromsys, tosys, priority=1, register_graph=None, collapse_static_mats=True)[source] [edit on github]¶ Bases:
astropy.coordinates.CoordinateTransform
A transformation constructed by combining together a series of single-step transformations.
Note that the intermediate frame objects are constructed using any frame attributes in
toframe
orfromframe
that overlap with the intermediate frame (toframe
favored overfromframe
if there’s a conflict). Any frame attributes that are not present use the defaults.Parameters: transforms : sequence of
CoordinateTransform
objectsThe sequence of transformations to apply.
fromsys : class
The coordinate frame class to start from.
tosys : class
The coordinate frame class to transform into.
priority : number
The priority if this transform when finding the shortest coordinate transform path - large numbers are lower priorities.
register_graph :
TransformGraph
orNone
A graph to register this transformation with on creation, or
None
to leave it unregistered.collapse_static_mats : bool
If
True
, consecutiveStaticMatrixTransform
will be collapsed into a single transformation to speed up the calculation.Methods Summary
__call__
(fromcoord, toframe)Methods Documentation
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__call__
(fromcoord, toframe)[source] [edit on github]¶
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