Le mercredi 28 novembre 2012 20:33:47, deb a écrit : > Hi, > > I asked this question on stackexchange: > http://gis.stackexchange.com/questions/42421/dxf-to-georeferenced-shp but > did not receive acceptable answer. I also visited irc channel, but there > is no activity. > > So I thought to join this mailing list and ask my question. > > Sounds desperate, right? > Well, it's not desperate, it's personal project and I'm in my way of > learning GIS tools and approaches. > > My problem is this: I have vector file in DXF format, which is not > georefenced and I want to convert it to SHP and georeference it, without > using GUI software with control points matching. > > Vector file has bound box, and inside some topological lines that I traced > from georefenced TIFF. I know the projection, and I know coordinates or > the bound box. I guess that's enough information to do georefencing, but > ogr2ogr tool does not allow it. For example with gdal_translate I can > georeference TIFF with "-a_ullr" switch, but ogr2ogr does not have such > function. > > Can you give me some advice how to approach this problem? > I thought to use ogr2ogr and export to geojson or some xml format, then > make script which will do shift and linear interpolation, but it doesn't > look like good way to me, and I hope I get better advice.
If you use GDAL trunk (latest revision r25263 from a few minutes ago that will be reflected in the -development packages of http://www.gisinternals.com/sdk/ in a few hours), a -gcp option has been added to ogr2ogr. See http://trac.osgeo.org/gdal/ticket/4604 > > Thanks > > _______________________________________________ > gdal-dev mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/gdal-dev _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
