This is companion code to this guide.
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""" | |
Read graphs in Open Street Maps osm format | |
Based on osm.py from brianw's osmgeocode | |
http://github.com/brianw/osmgeocode, which is based on osm.py from | |
comes from Graphserver: | |
http://github.com/bmander/graphserver/tree/master and is copyright (c) | |
2007, Brandon Martin-Anderson under the BSD License | |
""" | |
import xml.sax |
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CREATE OR REPLACE FUNCTION voronoi(table_name text,geom_col text) returns SETOF record as $$ | |
############################################################################# | |
# | |
# Voronoi diagram calculator/ Delaunay triangulator | |
# Translated to Python by Bill Simons | |
# September, 2005 | |
# | |
# Additional changes by Carson Farmer added November 2010 | |
# |