[Talk-ca] BC2020i OSM Distributed Model and Education
Stewart C. Russell
scruss at gmail.com
Tue Feb 6 18:01:34 UTC 2018
On 2018-02-02 06:06 PM, john whelan wrote:
> It would be useful if someone could produce a sample in R that takes a
> .osm file and counts the buildings.
R might be rather overkill:
grep "k='building'" file.osm | wc -l
One might have to do some clever trickery around buildings that are
relations (those with courtyards), though.
> A task from that would be to extend
> it to count the number of two storey (story) buildings.
I wonder if OSM uses the UK concept of storey, where a two storey
building has three levels (ground floor, first floor, second floor)? Was
a huge confusion for me when I first moved to Canada: first floor means
one level up.
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