Is there an example of how we can extract the z value from a shp file given the x,y coordinate value (namely utm) using gdal/ogr c++ lib? alternatively, would it be easier if we convert the shp file ...
I'm working on a homebrew spatial feature data format, and using Python to write it's API. It occoured to me that use some tool like QGIS to display my data would be very nice to have, for debug/test ...
Hi I want to programatically create a GeoJSON file using polygons from a shapefile but adding attributes from my own application. This is easily done for a shapefile: def ...
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 ...
I have a grid shapefile (basically, a half-degree grid of the world, where each cell has a unique id number), and a set of files with features. I want to record for each grid cell, all the areas ...