[mapguide-trac] #751: Coordinate System Math Comparator tolerances are too tight

[MapGuide Open Source]

#751: Coordinate System Math Comparator tolerances are too tight
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   Reporter:  NormOlsen  |       Owner:  NormOlsen                
       Type:  defect     |      Status:  new                      
   Priority:  low        |   Milestone:                           
  Component:  General    |     Version:  2.0.1                    
   Severity:  minor      |    Keywords:  Geometry CoordinateSystem
External_id:             |  
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 The coordinate system MathComparator is an object used to compare two
 coordinate system definitions to see if they are mathematically
 equivalent; i.e. would produce the same numeric results.  The tolerances
 used to compare definition components as applied to CS-MAP definitions are
 too tight.  For example, the tolerance used to compare ellipsoid radii is
 1.0E-13.  Thus, definitions which are essentially the same, although not
 precisely identical, will not produce a positive comparison.

 Additionally, the MathComparator will compare items in the definition
 which would not affect the numeric results produced by an instantiation of
 the definition, such as the useful range of the coordinate system.  These
 additional comparisions should be removed.

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Ticket URL: <http://trac.osgeo.org/mapguide/ticket/751>
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