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Description:
The NormMap class
implements a
Mapping which normalises coordinate values using the
AST_NORM routine of a
supplied
Frame. The number of inputs and outputs of a NormMap are both equal to the number of
axes in the supplied Frame.
The forward and inverse transformation of a NormMap are both defined but are identical
(that is, they do not form a real inverse pair in that the inverse transformation does not
undo the normalisation, instead it reapplies it). However, the AST_SIMPLIFY function
will replace neighbouring pairs of forward and inverse NormMaps by a single UnitMap.
Constructor Function
Inheritance
The NormMap class inherits from
the Mapping class.
Attributes
The NormMap class does not define any new attributes
beyond those which are applicable to all Mappings.
Functions
The NormMap class
does not define any new routines beyond those which are applicable to all Mappings.
Copyright (C) 2014 Science & Technology Facilities Council
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A Library for Handling
World
Coordinate Systems
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