2011/11/17 Andreas Balzer <em...@andreas-balzer.de>: > There is a feature regarding entrances to buildings. For me it seems to be > suited for indoor mapping to be used for entrances to rooms too. Would be > nice to get comments on this.
You could use entrance=room for entrances to rooms. Maybe you'd also want to tag other doors, so barrier=door could be a tag. Our current tools are not very suited for mapping buildings (for drawing buildings you'd want good support for orthogonal drawing and maybe walls (double lines and automatic trimming at intersections and corners) and configurable snapping and maybe grids). There is already really a lot of commercial software for drawing buildings but very few open source and with a few extensions JOSM could become much better suited for mapping than these (actually there is already some nice support in JOSM in the extrude mode, so moving walls parallely is already possible, but for example you could have a divider tool to split one polygon or multipolygon into 2 multipolygons). Anyways, the problem that Peter mentioned remains: different levels. You won't need a real 3D model to do 3D-routing - besides very few cases of interesting architecture - so you could use 2D logics and go with "building:level" and filter this in the editor (and on the downside create structures that almost require a certain editor for mapping, the other mappers will not be able to improve the map without an editor who filters the data). I never use the filter function in JOSM but I think it is already possible to filter by any tag (building:level), and if you attach this tag to all elements in every level you already could handle this. Or you go for a separate database for upper and lower levels. You could integrate the ground level in OSM (not in infinite detail, but if we are talking about public buildings (and maybe also publicly accessible buildings) that might be OK, but if you already implement something for the other levels you can also set the building entrances as interfaces. A dedicated buildings-database linked to OSM could also have other benefits, you could add images, building drawings (raster, vector, 3D) and other information (Articles, Books, ... cheers, Martin _______________________________________________ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
