Hi, 2016-04-02 14:28 GMT+02:00 Martin Landa <[email protected]>:
> Adding `-t` flags leads to correct result. > > g.proj epsg=5514 datumt=2 -tp > -PROJ_INFO------------------------------------------------- > ... > towgs84 : 570.8,85.7,462.8,4.998,1.587,5.261,3.56 > ... > > I don't know why `-t` flags is neeed here, selected parameters by > `datumtrans` should be enough here. I see, my proj library installation already defines `+towgs84` for EPSG 5514: cat /usr/local/share/proj/epsg | grep 5514 <5514> +proj=krovak +lat_0=49.5 +lon_0=24.83333333333333 +alpha=30.28813972222222 +k=0.9999 +x_0=0 +y_0=0 +ellps=bessel +towgs84=589,76,480,0,0,0,0 +units=m +no_defs <> I my eyes, when user defines `datumtrans` it should be enough (without need to add also `-t` flag). I change it in r68205. So: g.proj epsg=5514 datumt=2 -p -PROJ_INFO------------------------------------------------- ... towgs84 : 570.8,85.7,462.8,4.998,1.587,5.261,3.56 ... works. Can anyone here explain when to use `-t` flag and it will make sense? Thanks. Ma -- Martin Landa http://geo.fsv.cvut.cz/gwiki/Landa http://gismentors.cz/mentors/landa _______________________________________________ grass-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-dev
