José Roberto Pereira Jr. wrote: > Hi list! > > I'm a newbie in geoprocessing and I need to transform a WKT > representation to a proj.4. I found a example using proj utility: > > +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 > +k=1.0 +units=m +nadgri...@null +wktext +no_defs > > but I don't understand nothing about! Someone could tell me some > resource or help me for translate the following WKT to proj.4?
You may try to use OGRSpatialReference http://gdal.org/ogr/classOGRSpatialReference.html Pseudo-code that should be easy to replace with C++, C or Python is: OGRSpatialReference sr; char const* proj4 = "..."; sr.importFromProj4(proj4); char* wkt = 0; sr.exportToWkt(&wkt); // allocates string and puts WKT into it // access WKT string using wkt pointer CPLFree(wkt); Best regards, -- Mateusz Loskot, http://mateusz.loskot.net Charter Member of OSGeo, http://osgeo.org _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
