[postgis-users] Using routing to create polygons of estimated travel distances

Anton Patrushev anton at orkney.co.jp
Thu Apr 30 22:30:20 PDT 2009


Hi Steve,

Yes, you can process the result of core Driving Distance function with
Convex Hull function of PostGIS or  with point_as_polygon function of
pgRouting, but there is a wrapper around this core function already
which returns you a polygon
(http://pgrouting.postlbs.org/browser/trunk/extra/driving_distance/sql/routing_dd_wrappers.sql#L78)
right away.

Anton.



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