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Try: adj <- gTouches(Districts, byid = TRUE) This produced a matrix indicating which regions share a border with other regions. Does that help?


Just use the following command: $ sudo apt-get install python-mapnik2 It straight forward installs mapnik2 on your Ubuntu system.


The build is broken. After a long debugging, I found out that if PROJ4 isn't compiled before gdal, the resulting library will NOT work correctly with different reference spaces.


If I understood your question right, what you are trying to do is an aggregate union of a Django GeoQuerySet. There are functions for this that are easier to use and probably more efficient than the loop from you question. You have two options: there is the collect command, which creates one multipolygon collection without dissolving the boundaries, and the ...

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