[Proj] Why use pj_inv() and pj_fwd() instead of pj_transform() ?

[fabrice martin]

>The principle reason is that a prime meridian can easily be compensated for 
>with simple modification of the central meridian (+lon_0). 


In
that case, shouldn't EPSG definitions be modified, in order to use
+lon_0 instead of +pm ? For example, French Lambert projections are
defined with "+lon_0=0 +pm=paris". Wouldn't it be better to use simply
"+lon_0=2.33..." ? It would enable pj_inv, pj_fw and pj_transform to
return similar results.

Regards,
Fabrice.



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