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I imported an osm file into a postgresql database using osm2pgsql. Now, I want to implement a route/path generating algorithm(routing algo) based on two locations entered by a user. It is not really clear for me where in my database structure I should search for these two points. For example if a user enters as starting point "Airport A" and as end point "Airport B" where should I search for these two locations so I can start implementing my routing algorithm. I need some clear information on how the database is structured and how to create a graph so that i can implement A* algorithm between the 2 points the user has enetered. |
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question asked: 08 Feb '18, 03:44
question was seen: 1,030 times
last updated: 08 Feb '18, 16:59
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NOTICE: help.openstreetmap.org is no longer in use from 1st March 2024. Please use the OpenStreetMap Community Forum
Using osm2pgsql is not the best way of doing this as it removes connection information between ways. Most routing tools use a separate geocoder to translate from location names to lat/lon. I would recommend using something like osm2pgrouting and PG routing in PostGis.