Oh - I see. I can open them now and wander through their layers and vector points. Thank you.
I don't suppose there is a utility/convience function to 'rasterize' the information within a 2D vector file (e.g. vector map) by any chance (i.e. rather than drawing them using OpenGL or something)? Gary > -----Original Message----- > From: Even Rouault [mailto:[email protected]] > Sent: 20 July 2009 22:03 > To: [email protected] > Cc: Smart, Gary > Subject: Re: [gdal-dev] How do I open vector files (e.g. shp) using GDAL > > Le Monday 20 July 2009 22:51:13 Smart, Gary, vous avez écrit : > > I understand that GDAL can open vector formats as if they were a > > dataset? > > > > No, not exactly. GDAL is for the raster formats. OGR is for the vector > formats. They have each their concepts, API and notions. See the OGR > documentation : http://gdal.org/ogr/ > > > > > > > E.g. I read that it is possible to pass the GDALOpen either a single > > .shp file (in which case it treats it as if it only had one layer) or a > > directory containing multiple .shp files - which presumably it opens as > > multi layered? > > > > > > > > However, whenever I try to open vector files in this way (directory or > > file) I get... > > > > > > > > ERROR 4 - blah blah is not recognised as a supported file format" > > > > > > > > I am still new to all this (having only just conquered raster formats) > > so I suspect I am doing something pretty dumb. > > > > Perhaps someone can help? > > > > > > > > Gary > _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
