[Talk-GB] Orientation of buildings from OSM in the UK

[Tim Waters]

Thought this may be of interest to folks.

"The chart illustrates the alignment of buildings in the OSM database,
for the British Isles. The trace of each building was divided into
line segments, and the orientation of each segment to due north was
calculated. Then the lengths of segment were totalled according to
their orientation, and the result plotted...."

http://tlatet.blogspot.co.uk/2013/04/what-is-going-on-here.html

Tim