[OSM-talk] augmenting contour data with gps track logs

Robin Paulson robin.paulson at gmail.com
Mon Dec 28 20:43:17 GMT 2009


the srtm contour data used in some osm renders is great, partic for
cyclists and walkers. i've realised that it's not as high
accuracy/precision as it might be though. i notice that most GPS
devices also record the elevation within their tracklogs, and that it
might be useful to extract this data, and use it to provide more data
for calculating the altitude of a given point.

any ideas?




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