> Something that would also be very cool would be if the script told you > all polygons or multipolygons you're in regardless of whether they are > a relation or normal polygon, and you could filter the result for > country boundaries or other type of areas. It could for example tell > you you're in a building in a school area in a residential area in a > county in a province in a country on an island.
It's a question of a proper specification. Then you can add the rules by yourself. Please have a look at http://78.46.81.38/#section.rule_example Currently, the areas are created based on the two rules <osm-script name="Area::Create_from_admin_level"> <query type="relation"> <has-kv k="admin_level"/> <has-kv k="name"/> </query> <foreach into="rel"> <union> <recurse type="relation-way" from="rel"/> <recurse type="way-node"/> </union> <make-area pivot="rel" into="odd"/> <detect-odd-nodes into="odd"/> <foreach from="odd" into="i"> <union><item set="i"/><item set="rel"/></union> <conflict>In <item set="rel"/>, the <item set="i"/> is contained in an odd number of segments.</conflict> </foreach> </foreach> </osm-script> and <osm-script name="Area::Create_from_multipolygon"> <query type="relation"> <has-kv k="type" v="multipolygon"/> <has-kv k="name"/> </query> <foreach into="rel"> <union> <recurse type="relation-way" from="rel"/> <recurse type="way-node"/> </union> <make-area pivot="rel" into="odd"/> <detect-odd-nodes into="odd"/> <foreach from="odd" into="i"> <union><item set="i"/><item set="rel"/></union> <conflict>In <item set="rel"/>, the <item set="i"/> is contained in an odd number of segments.</conflict> </foreach> </foreach> </osm-script> These rules translate as follows: Consider every relation that has a tag with key "admin_level" and a tag with key "name". Create a polygon from all the member ways. If this fails, attach a message "In relation $Rel, the node $Node is contained in an odd number of segments" to this relation. and Consider every relation that has a tag with key "type" value "multipolygon" and a tag with key "name". Create a polygon from all the member ways. If this fails ... Thus, if you think of a rule like Consider every way that has a tag with key "type" and value "multipolygon" and a tag with key "name". Create a polygon from this way. If this fails ... this translates to <osm-script name="Area::Create_from_multipolygon"> <query type="way"> <has-kv k="type" v="multipolygon"/> <has-kv k="name"/> </query> <foreach into="way"> <union> <item set="way"/> <recurse type="way-node" from="way"/> </union> <make-area pivot="way" into="odd"/> <detect-odd-nodes into="odd"/> <foreach from="odd" into="i"> <union><item set="i"/><item set="way"/></union> <conflict>In <item set="rel"/>, the <item set="i"/> is contained in an odd number of segments.</conflict> </foreach> </foreach> </osm-script> You just can submit the rule (or any other rule) as described on http://78.46.81.38/#section.rule_example and some hours later it should be processed. Feel free to ask if you have any questions. Cheers, Roland _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
