After the index branch has been developed so far that we can use the results in MapSource (thanks to Steve!!) there is a big need for a mechanism to fill missing location information. There has been a lot of discussion about that. It stopped because it was quite theoretical (from my point of view). Therefore I have started to implement a prototype osm hook that tries to complete the missing location information. I think the is_in tag is quite problematic therefore I decided to use the addr tags. Attached is a *very* early implementation that makes use of the boundary polygons. It checks all nodes and ways/polygons within all boundary polygons and fills the missing addr tags. I think this is a better foundation for the discussion how we want to fill the missing location information. Before flaming me about terrible code please be aware that: * the patch is not optimized * it's version 1, so far away from handling all situations / countries * it's a very early prototype I would be happy if you try it and make some proposals how it could be improved. Some improvements I already know and thinking about: * The new hook should run after the multipolygon finishing and not before * The is_in tag should be handled * boundary information propagation => First go through all boundaries and add the information from higher levels to lower ones, i.e. add addr:district to all city boundaries within that district * Use landuse=residential information in combination with the place nodes * In case a boundary level is missing (which mostly will be the case for countries admin_level=2), select the addr information from all nodes and ways within a boundary by using the most used addr-tag value. (in germany the addr:country=DE should be the most used) Have fun! WanMil