Hi guys, See the following email for a new interesting service provided by a French OSM developer.
Some example Philippine-related images generated using the service: Palawan : http://polygons.openstreetmap.fr/get_image.py?id=1506669¶ms=0 Metro Manila : http://polygons.openstreetmap.fr/get_image.py?id=147488¶ms=0 ---------- Forwarded message ---------- From: Jocelyn Jaubert <jocelyn.jaub...@gmail.com> Date: Wed, Jun 12, 2013 at 5:45 AM Subject: [OSM-dev] Website to generate polygons from OSM relations To: d...@openstreetmap.org Hi, I have put into production a website to generate various outputs from OSM relations, by taking into account inclusion of other relations. It is available at: http://polygons.openstreetmap.fr/ What it can do: - generate whole geometry from an OSM relation ID, with handling of sub-relations - this works especially well with the recursive French model for administrative relations, and can be used as a sanity check. - generate simplified geometries, even bigger or smaller - this is useful to cut a .osm file with a good .poly file. - export WKT, .poly, GeoJSON, or even a picture. - import a user .poly file, and then do an Union from an OSM relation. I used this to fix some polygons used for Geofabrik extracts. A few examples: OSM relation for Corsica: http://polygons.openstreetmap.fr/?id=76910 http://polygons.openstreetmap.fr/get_image.py?id=76910¶ms=0.020000-0.005000-0.005000 Same thing for France (image is a little longer to generate) http://polygons.openstreetmap.fr/?id=1362232 Union of Geofabrik and OSM relation for PACA, a french region: http://polygons.openstreetmap.fr/get_image.py?id=8654¶ms=0.020000-0.005000-0.005000&name=provence-alpes-cote-d-azur_5k3mbx (you can see that some part of the region were missing from the yellow polygon) The source code is available at: https://github.com/jocelynj/osm-polygons-generation This uses an osmosis database, containing the whole word, and some Postgis functions. If you have any suggestion, don't hesitate to propose them ! Thanks, Jocelyn
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