3
votes
1answer
357 views

How to programatically populate a shapefile field with polygon areas in OGR?

I'm trying to programatically populate a shp field with polygon areas: import sys import ogr ds = ogr.Open( 'tttttttttt.shp', update = 1 ) if ds is None: print "Open failed./n" sys.exit( 1 ...
0
votes
1answer
124 views

Where to get raster files of Earth, united states [duplicate]

Possible Duplicate: Open access repository of general GIS spatial data? I'm brand new to GIS programming so please excuse my lack of knowledge. I am developing a GIS web app using ...