On 2010-03-26 08:46 , realjax wrote: > When I try using the measure tool on my map (google projection) I get *huge* > distance differences when I test it over long distances (draw a line from > Japan to US crossing Africa for instance). With geodesic turned on it says > this is a couple of thousand kilometers, with geodesic turned off it gives > me a more accurate ( 70.000 kilometers). >
If you don't have any points in between, geodesic measuring will give you the shortest distance on the sphere. Which, in the case of Japan - US is not crossing Africa, but going directly across the Pacific Ocean. The fix would be to add points in between (e.g. one over Africa). Regards, Andreas. > You can see for yourself in the measure example @ > http://openlayers.org/dev/examples/ > > Any idea what's causing this? Is there a fix? > > Thanks& regards > -- Andreas Hocevar OpenGeo - http://opengeo.org/ Expert service straight from the developers. _______________________________________________ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users