You can use valrepl.py script to make a copy of your image with new values. http://svn.osgeo.org/gdal/trunk/gdal/swig/python/samples/val_repl.py
Or if you really want to edit the shapefile afterwards, try out the OGR python bindings, but you would need to write your script. Etienne On Thu, Feb 2, 2012 at 6:48 PM, Xiaodong Zhang <[email protected]> wrote: > Hi, > > > > I’m just wondering if any of you has done and would like to share your > experience in replacing the attribute values of a shape file. > > > > Here is what I’m doing: > > > > 1. I have an image with pixels values ranging from, say, 1, 2, 3 and > 4 > > 2. I used gdal_polygonize.py to convert this into a polygone shape > file, with attributes of 1, 2, 3 or 4. > > 3. Now I need to replace these attributes with a set new values, say, > 10, 20, 30, and 40. > > > > Of course, I can do this in the first step, but I’m thinking the best way to > do this is in the last step, because I can preserve the original image. Any > suggestions? > > > > Thanks > > > > Xiaodong > > > _______________________________________________ > 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
