On Fri, 20 May 2011, Bryan Keith wrote:
I'm not convinced that's a valid wkt description of the coordinate system you want.
Bryan, Let me back up and ask the question from a different point. Here's the WKT from one of the maps: PROJCS["Project", GEOGCS["GCS_North_American_1927", DATUM["D_North_American_1927", SPHEROID["Clarke_1866",6378206.4,294.9786982]], PRIMEM["Greenwich",0.0], UNIT["Degree",0.0174532925199433]], PROJECTION["Transverse_Mercator"], PARAMETER["False_Easting",500000.0], PARAMETER["False_Northing",-2000000.0], PARAMETER["Central_Meridian",-115.583333], PARAMETER["Scale_Factor",0.9999], PARAMETER["Latitude_Of_Origin",34.75], UNIT["Foot_US",0.3048006096012192]] From this I created this proj4 description: +proj=tmerc +datum=nad27 +ellipse=clrk66 +a=6378206.4 +b=294.9786982 +x_0=500000.0 +y_0=-2000000.0 +k_0=0.9999 +lat_0=34.75 +lon_0=-115.583333 +no_defs +units=us-ft Is this an accurate description to use in creating the location? Does the order matter? Rich _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
