Nikos Alexandris wrote: > Alternative solution with respect to the specific example here: allow > g.copy to copy data from another dbase/location to the current dbase in > a location with identical name and projection definition of course (?).
We don't currently have any way to check whether two projections are identical, and this isn't a trivial question. E.g.: 1. Some of the parameters are floating-point values, so we would need to choose some kind of tolerance. 2. Are WGS84 and NAD83 the same? In the absence of grid shift files, the only difference is that the eccentricity of the WGS84 and GRS80 ellipsoids differ by 1.5e-6. 3. If the projections use grid shift files, do we just check that they use the same file, or do we compare their contents? -- Glynn Clements <[email protected]> _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
