Phil/Ethan- Philip Bentley wrote:
> An obvious one perhaps, but one which we may find increasingly useful / > relevant in light of the rise and rise of GoogleEarth-type applications, > is the Orthographic projection. This being the classic 'view from space' > projection. > > Same grid mapping parameters as the other azimuthal projections, viz. > > grid_mapping_name = "orthographic" > > longitude_of_projection_origin > latitude_of_projection_origin > false_easting > false_northing > > (though off the top of my head I can't think of a scenario where one > would want to use the last two params). I think GE actually uses a tilted perspective view. But, I think CF should support the Vertical Perspective with an ellipsoid. EUMETSAT has GRIB messages with this projection and an elliptical earth. Don ************************************************************* Don Murray UCAR Unidata Program [EMAIL PROTECTED] P.O. Box 3000 (303) 497-8628 Boulder, CO 80307 http://www.unidata.ucar.edu/staff/donm ************************************************************* _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
