[Proj] how to compare 2 proj4 definitions? or: how to normalizeproj4 definition?

[Thy, Kristian]

From: Frank Warmerdam
> I believe Sergey is looking for a way of comparing PROJ.4 projection
> definitions to see if they are equivelent.  By normalization he means
> putting the coordinate system definition into a "normalized form" such
> that two equivelent coordinate system definitions will have the same
> string representation.  I'm not sure if this is a proper use 
> of the word normalize, but it was at least clear to me.

I think "canonical representation" is the term we're looking for.

Kristian  


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