2014-07-04 14:27 GMT+02:00 Janko Mihelić <jan...@gmail.com>: > I think such buildings should have a tag "layer", no ? >> > > Such buildings should be mapped with building:part=yes+min_height=* > objects: > > http://wiki.openstreetmap.org/wiki/Simple_3D_Buildings > > But if a building is partly raised, then a pedestrian area should be > present under that part, but it should still be cut out through the part > where the building is not raised. So it still works. >
I think the layer tag should be required. There are indeed alternative methods to model 3D/spatial-relationship and stacking order, but layer is the established standard, especially when it comes to 2D-rendering like the carto osm style. cheers, Martin
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