[Proj] crs definition with both +nadgrids and +towgs84 parameters
"SAEZ Laurent - CETE Méditerr./DI/ETER"
Laurent.Saez at developpement-durable.gouv.fr
Wed Jan 14 02:23:03 EST 2009
Someone could tell me what appens if +nadgrids and +towgs84 are both
used in a crs definition (e.g. in the EPSG file) ?
Which parameter is taken into account ?
Is the behavior the same in all tools (cs2cs, ogr utilities, gdal
I ask this because IGN puts both parameters in its IGNF catalog (French
I wonder if it is not preferable to specify only one.
My main problem is to be sure that the grid ntf_r93.gsb is used by
MapServer for NTF to RGF93 transformations.
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