Kirk Wythers wrote: > Greetings everyone, > > I was just handed a 26,000 row by 100 column excel file which contains > lat long coordinates of individual site locations. I need to project it > onto a rater image (already in a grass utm location). > > Two ideas come to mind... one is to read it into a grass lat long > location with v.in.ascii and then reproject onto the utm location, the > other is to read it into postgis and convert the lat long columns to > meters, then import the postgis layer. Any suggestions as to advantages > or disadvantages to either approach?
FYI, you can also use cs2cs to reproject coordinates stored in a text file directly. Look at GRASS m.proj for inspiration [1]. Then v.in.ascii, v.to.rast. [1]http://freegis.org/cgi-bin/viewcvs.cgi/grass6/scripts/m.proj/m.proj?rev=1.6&content-type=text/vnd.viewcvs-markup Maciek _______________________________________________ grassuser mailing list [email protected] http://grass.itc.it/mailman/listinfo/grassuser
