On lundi 29 mai 2017 10:35:36 CEST Jonathan Beliën wrote: > Any idea about this topic ? >
I've just fixed the issue per https://trac.osgeo.org/gdal/ticket/6903 where -t_srs EPSG:31370 will now work. You can workaround the issue by using -t_srs belgian72.txt with belgian72.txt content being: PROJCS["Belge 1972 / Belgian Lambert 72", GEOGCS["Belge 1972", DATUM["Belgian 1972 7 Parameter", SPHEROID["International 1924",6378388,297, AUTHORITY["EPSG","7022"]], TOWGS84[-106.8686,52.2978,-103.7239,0.3366,-0.457,1.8422,-1.2747], AUTHORITY["EPSG","6313"]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4313"]], PROJECTION["Lambert_Conformal_Conic_2SP"], PARAMETER["standard_parallel_1",51.16666723333333], PARAMETER["standard_parallel_2",49.8333339], PARAMETER["latitude_of_origin",90], PARAMETER["central_meridian",4.367486666666666], PARAMETER["false_easting",150000.013], PARAMETER["false_northing",5400088.438], UNIT["metre",1, AUTHORITY["EPSG","9001"]], AXIS["X",EAST], AXIS["Y",NORTH], AUTHORITY["EPSG","31370"]] Which is the output of gdalsrsinfo EPSG:31370 where the DATUM name has been replaced with "Belgian 1972 7 Parameter" instead of the original "Reseau_National_Belge_1972" in EPSG. Note that MapInfo (or at least MITAB) apparently uses slightly different TOWGS84 coefficients that the ones picked up by GDAL in the EPSG database. Even -- Spatialys - Geospatial professional services http://www.spatialys.com
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