Hi, I need some help to add support for "Hong Kong 1980" datum in GRASS. I have a wkt file with following information:
PROJCS["Hong_Kong_1980_Grid",GEOGCS["GCS_Hong_Kong_1980",DATUM["D_Hong_Kong_198 0",SPHEROID["International_1924",6378388.0,297.0]],PRIMEM["Greenwich",0.0],UNIT ["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["Fal se_Easting",836694.05],PARAMETER["False_Northing",819069.8],PARAMETER["Central_ Meridian",114.1785555555556],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_ Of_Origin",22.31213333333334],UNIT["Meter",1.0]] The datum D_Hong_Kong_1980 does not exist in GRASS yet. I found following parameters and added them to the datum.table file: # Hong Kong Datum 1980 hk80 "Hong_Kong_1980" international dx=-156 dy=-270 dz=-189 Now I am missing the Datum Transformation Parameters to add to the datumtransform.table. I hope that someone has experience with "Hong_Kong_1980_Grid", can confirm, what I found so far and maybe add the missing datum transformation parameters or knows where I can find more about it? thanks a lot Otto _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user