That'll work. You just need the file name at the end of the command. The lon-lat coords should be in a text file, one on a line, separated by a space.
Check against some known conversions just to be sure. For instance, you can check with Ruby Dome coords at the wikipedia page. http://en.wikipedia.org/wiki/Ruby_Dome Click on the coordinates which will give decimal, dms, utm coords. (The datum is wgs84, but at least you can check the syntax against some known conversions.) Note that you don't need to be in a grass session to run cs2cs. It's great. Check the man page for the other command line switches. hth L. Prevett On 2/27/12, Rich Shepard <[email protected]> wrote: > I have many lon-lat coordinates in decimal degree format that are to be > converted to spcs Nevada East Zone (FIPS: 2701, ADS: 4601, UTM Zone 11), > NAD83, US survey feet or, as the PROJ_INFO in that location has it: > > name: Transverse Mercator > proj: tmerc > datum: nad83 > ellps: grs80 > lat_0: 34.75 > lon_0: -115.5833333333333 > k: 0.9999 > x_0: 200000.00001016 > y_0: 8000000.000010163 > no_defs: defined > > The command I propose to use is: > > cs2cs +proj=latlong +datum=NAD83 +to +proj=utm +zone=11 +datum=NAD83 > > Is this correct? > > Rich > > _______________________________________________ > grass-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/grass-user > _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
