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 A Library for Handling
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Description: 
 The NullRegion
class implements a 
Region with no bounds within a 
Frame. If the 
Negated attribute of a
NullRegion is false, the NullRegion represents a Region containing no points. If the
Negated attribute of a NullRegion is true, the NullRegion represents an infinite Region
(that is, all points in the coordinate system are inside the NullRegion).  
Constructor
Function 
  Inheritance  
 The NullRegion class inherits from the Region
class.  
  Attributes  
 The NullRegion class does not define any new attributes beyond
those which are applicable to all Regions.  
  Functions  
 The NullRegion class does not
define any new functions beyond those which are applicable to all Regions.
 Copyright (C) 2021 East Asian Observatory
  -  ←Prev 
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 A Library for Handling
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Coordinate Systems
 in Astronomy
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