>On Fri, Oct 28, 2011 at 12:01 PM, Helmut Kudrnovsky <[hidden email]> wrote: >... >> in my experience overlaying kml (vector and raster) with EPSG:4326 in >> google >> earth works relatively well in flat areas, in mountain areas there are >> sometime distortions therefore. > >I can confirm this from my (limited) experience to export data >to KML. To correct for the geoid heights, you could use the previously >indicated map and calculate the local ellipsoid-geoid difference >and vertically shift your vector data with v.transform. Then export >to KML. For raster, use r.mapcalc to shift.
for some additional information see http://www.epsg-registry.org/ => retrieve by code: EPSG: 4326 => GeodeticCRS (geographic 2D) [WGS 84] => 2D EPSG: 4978 => GeodeticCRS (geocentric) [WGS 84] => 3D Helmut -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/Is-it-possible-to-export-a-Raster-to-KML-tp6924758p6939578.html Sent from the Grass - Users mailing list archive at Nabble.com. _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
