On Mon, 10 Oct 2011, Facundo Muñoz wrote:
Hi people,
I have a shapefile of polygons (buildings), and I would like to calculate,
for each one, the length of the shared border with some other building.
Or, conversely, how much of its border is 'exterior'.
I can't figure out how to extract that info.
Without a topological GIS you cannot. Try vect2neigh() in spgrass6 using
GRASS to do this. It can, I believe, also be done using vector coverages
in ArcGIS.
Hope this helps,
Roger
Any idea?
Thanks.
ƒacu.-
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Roger Bivand
Department of Economics, NHH Norwegian School of Economics,
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e-mail: roger.biv...@nhh.no
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