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
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