I’ve been tagging roofs and buildings with 3D tags for quite a while now and ever so often, I come across a simple house with a roof with just 1 or 2 dormers and nothing else. Read: if it wasn’t for the dormers, then I wouldn’t even need to use building parts. When tagging such a building, I have 3 options:
- Option 1: If I only add the dormer with
building:part=yesto the building, the rest of the building won’t be rendered. Which is correct by definition. Doesn’t work of course.
- Option 2: If I add another
building:partwith the same outline as the building itself, this is flagged as an error by JOSM, because we now have 2 ways with the same outline.
- Option 3: If I add a
building=detachedway, JOSM complains that a building cannot be a building part at the same time.
I’m currently using option 2, but I’m wondering, if there is a better, JOSM-error-free way of achieving this, or whether I should probably flag the warning as a potential bug to the JOSM developers.
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Ce sujet de discussion accompagne la publication sur https://community.openstreetmap.org/t/3d-tagging-of-simple-houses-with-just-dormers/4564