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Description: 
 The ZoomMap class
implements a 
Mapping which performs a 
" zoom
" transformation by multiplying all
coordinate values by the same scale factor (the inverse transformation is performed by
dividing by this scale factor). The number of coordinate values representing each
point is unchanged.  
Constructor Function 
  Inheritance  
 The
ZoomMap class inherits from the Mapping class.  
  Attributes  
 In addition to
those attributes common to all Mappings, every ZoomMap also has the following
attributes:
   Functions  
 The ZoomMap class does not define any new
functions beyond those which are applicable to all Mappings.  
                                                                                       
                                                                                       
                                                                                       
                                                                                       
                                                                                       
                                                                                       
 Copyright (C) 2021 East Asian Observatory
  -  ←Prev 
- AST
 A Library for Handling
 World
Coordinate Systems
 in Astronomy
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