[HOT] Squared buildings
Mike Thompson
miketho16 at gmail.com
Thu Apr 14 20:16:04 UTC 2016
On Thu, Apr 14, 2016 at 11:34 AM, Bryan Housel <bryan at 7thposition.com>
wrote:
> The threshold for squaring angles in iD is currently set to within +/-12
> degrees of right or straight. This number was just chosen because it
> “feels” right, and still allows for buildings to have 15 degree angles and
> circular sections.
> https://github.com/openstreetmap/iD/issues/1902
>
Thanks for the info, and again, thanks for creating the iD Editor. It
really is an amazing tool. The stuff we are talking about here are just
minor suggested tweaks. Regarding the 12 degree limit, If a building
doesn't have square corners in reality (e.g. round or buildings with "15
degree angles") why would one ask any editor (iD, JOSM, etc.) to square
them? I think JOSM will square almost anything. Sometimes the result isn't
what you want, but that is obvious as the way is changed by the tool -
often dramatically.
>
>
> My advice for tracing buildings with better precision is to 1. use a mouse
> and 2. zoom in more. People very new to mapping often forget that zooming
> in makes it much easier to trace in detail.
>
Those are both things that I already tell new mappers. But they type 's'
and think they have made a square building. We can talk about how that
they should notice that nothing changed, but no one has ever asked me "why
doesn't the 's' key work?" Perhaps they think that the squaring happens
behind the scene and isn't visible? Who knows. Below are some of the
results (blue buildings) from a recent mapathon.
[image: Inline image 1]
Mike
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