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A Library for Handling

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#### Description:

A Winmap is a linear

Mapping which transforms a rectangular window in
one coordinate system into a similar window in another coordinate system by
scaling and shifting each axis (the window edges being parallel to the coordinate
axes).

A WinMap is specified by giving the coordinates of two opposite corners (A and B) of
the window in both the input and output coordinate systems.

#### Constructor Function

#### Inheritance

The WinMap class inherits from the Mapping class.

####
Attributes

The WinMap class does not define any new attributes beyond those
which are applicable to all Mappings.

#### Functions

The WinMap class does not
define any new functions beyond those which are applicable to all Mappings.

Copyright (C) 2021 East Asian Observatory

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A Library for Handling

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Coordinate Systems

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