Am 13.04.2010 10:48, Gregory: > > On 13 April 2010 01:26, Andrew Errington <[email protected] > <mailto:[email protected]>> wrote: > > I have checked Yahoo! aerials to see the nominal area of the > reservoir and I have chosen a particular contour line on OSM Cycle > Map to trace along with Potlatch. This will give a > pleasing representation of the area covered by the water. > > Hey, hold it right there. > What makes you think the Yahoo! imagery and/or the contour lines shown > on the Cycle Map(these contours are from SRTM data, not OSM) are more > up to date or more accurate/precise than the existing water body drawn > in OSM?
These thoughts set aside here's a SRTM contour tiles link: [1] I suggest reading about SRTM as well [2] so that you can assess this data source. For example the 90m resolution outside the USA. Claudius [1] http://www.christeck.de/wp/2010/01/09/srtm-tiles-available-online/ [2] http://en.wikipedia.org/wiki/SRTM _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
