I downloaded the source from http://download.osgeo.org/gdal/gdal152.zip, built on windows XP with VC2008 with and PROJ4 dll from http://download.osgeo.org/proj/proj446_win32_bin.zip
any clue Antonio 2008/9/15 Markus Neteler <[EMAIL PROTECTED]> > On Mon, Sep 15, 2008 at 11:02 AM, Antonio Parrotta > <[EMAIL PROTECTED]> wrote: > > Hi All, > > > > I'm facing in strange result using gdaltransform. What I'm doing is to > try > > to trasform coordinates from WGS84 to Gauss-Boaga: > > > > gdaltransform.exe -s_srs "WGS84" -t_srs "+proj=tmerc +ellps=intl +lat_0=0 > > +lon_0=9 +k=0.9996 +x_0=1500000 +y_0=0 +units=m > > +towgs84=-104.1,-49.1,-9.9,0.971,-2.917,0.714,-11.68" > > entering lon and lat > >>7,69746 45,106977<enter> > > it gives > > 1342393.88434212 4984915.97865081 -47.0342488819733 > > doing the same transformation with qgis (same parameters), I have > > 1397559,446 4995677,02 > > that is quite near to the target expected also checking out in map. > > > > Do we know the reason of this delta? Do I have to set any other > correction > > parameter? > > > Using cs2cs from PROJ4 Rel. 4.6.1, 21 July 2008, I get: > > cs2cs -v +proj=latlong +datum=WGS84 +to +init=epsg:3003 > +towgs84=-104.1,-49.1,-9.9,0.971,-2.917,0.714,-11.68 > # ---- From Coordinate System ---- > #Lat/long (Geodetic alias) > # > # +proj=latlong +datum=WGS84 +ellps=WGS84 +towgs84=0,0,0 > # ---- To Coordinate System ---- > #Transverse Mercator > # Cyl, Sph&Ell > # +init=epsg:3003 +towgs84=-104.1,-49.1,-9.9,0.971,-2.917,0.714,-11.68 > # +no_defs +proj=tmerc +lat_0=0 +lon_0=9 +k=0.9996 +x_0=1500000 +y_0=0 > # +ellps=intl +units=m > #--- following specified but NOT used > # +no_defs > 7.69746 45.106977 > 1397556.77 4995679.28 -46.70 > > Using gdaltransform on Linux (almost current SVN), I get: > gdaltransform -s_srs "WGS84" -t_srs "+proj=tmerc +ellps=intl +lat_0=0 \ > +lon_0=9 +k=0.9996 +x_0=1500000 +y_0=0 +units=m \ > +towgs84=-104.1,-49.1,-9.9,0.971,-2.917,0.714,-11.68" > 7.69746 45.106977 > 1397556.76994996 4995679.27916302 -46.6971342787147 > > which is the same as the cs2cs output. > > How old is your gdaltransform.exe and where does it originate from? > > Markus >
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