Talk:Roof 3D modeling
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Measurement of roof:direction
The downslope of the drawn roof seems to face ENE direction, but 194.3° equal SSW.
--Davileci (talk) 23:42, 10 January 2020 (UTC)
- Well spotted, the image is wrong. JOSM's angle measurement behaves differently depending on whether you already have a way selected or not:
- When no way is selected, the angle is relative to north. (This is the intended behavior for determining roof:direction=* values.)
- When a way is already selected, the angle is relative to that way. (This is what's actually shown in the screenshot.)
- It also seems unnecessary to require the building plugin, you can just begin to draw a way using the built-in JOSM tools to get the angle. As the screenshot additionally uses the outdated roof:slope:direction key, I guess it needs to be replaced. --Tordanik 10:41, 11 January 2020 (UTC)