Hi, Bit of background: my Freemap site (free-map.org.uk) allows people to generate self-describing walking routes by drawing a route on the slippy map using the OpenLayers vector drawing tool. Some server-side code then works out which geometries in the underlying PostGIS DB make up the way.
This (mostly) works but is slow/inefficient, so I was wondering about using pgRouting for this instead. Quick question: is pgRouting an *extension* to the standard OSM postgis DB, or entirely separate? In other words, if I wanted to do routing *and* make available a data API in which clients could query ways by type (tag), could I just use a pgrouting DB for this? Reason I ask is that there appears to be a 'ways' table to store way geometries in an osm2pgrouting database. Thanks, Nick
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