[OSM-talk] buildings

Robert Scott lists at humanleg.org.uk
Tue Jul 24 22:44:30 BST 2007

The building footprint with the addition of a height= tag (either estimated or 
from some crude surveying) would allow us to represent approximations of 
prismoidal buildings. Most buildings are roughly prismoidal.

Not much effort for the beginnings of a 3d map.


On Tuesday 24 July 2007 21:59, Steve Coast wrote:
> I went to central london today and had 15 minutes so I grabbed a load
> of streets. As I tag them up, I've noticed how all the buildings are
> fairly well outlined in the aerial imagery even if they are slightly
> off due to parallax of the offset camera not being over the top of
> every building. That is, you can see the some of the sides of the
> buildings often.
> It strikes me that doing all the building outlines in london is very
> possible, and something we can do without visiting.
> So, my question is what's the status of building=* and what is the
> status of mapnik and t at h rendering it?
> If those two or three things line up, should we start putting in the
> outlines of lots of buildings?
> have fun,
> SteveC | steve at asklater.com | http://www.asklater.com/steve/
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