[GRASS-user] datum itrf 92 not recognised

Hi all! I want to create a new location in GRASS GIS using a file that uses the ITRF datum 1992 and get the error: g.proj returned the following informational message: WARNING: Datum ITRF_1992 not recognised by GRASS and no parameters found What can I do? anyone can help me? thank you a lot!

Re: [GRASS-user] error in r.sun with latin and longin maps

Ok, thank you very much Hamish -- View this message in context: http://osgeo-org.1560.n6.nabble.com/error-in-r-sun-with-latin-and-longin-maps-tp4984349p4984654.html Sent from the Grass - Users mailing list archive at Nabble.com. ___ grass-user mailing

[GRASS-user] error in r.sun with latin and longin maps

Hi all I want to create a map with r.sun but I get the following error: Mode 1: instantaneous solar incidence angle & irradiance using a set local time pj_transform() failed: latitude or longitude exceeded limits my instruction is: r.sun -s elevin=dem aspin=aspecto.allen slopein=pendiente

[GRASS-user] How to compile GRASS on MAC (new user)

This is the first time that I use MAC (OS X Lion), and I want to compile GRASS 6.3 and GRASS 6.4. Someone could help me and tell me how I can compile it? Thank you so much -- View this message in context: http://osgeo-org.1560.n6.nabble.com/How-to-compile-GRASS-on-MAC-new-user-tp4887963p48879

[GRASS-user] Re: pyhton script-how to get the pixel value from r.what

thank you very much! I already do Adriana IPICyT, México -- View this message in context: http://osgeo-org.1560.n6.nabble.com/pyhton-script-how-to-get-the-pixel-value-from-r-what-tp4665870p4672574.html Sent from the Grass - Users mailing list archive at Nabble.com. ___

[GRASS-user] pyhton script-how to get the pixel value from r.what

Hello! I am writing a python script, and I want to do mathematical operations with some pixels, but I can't. Can anyone help me? script: ts_f= grass.read_command("r.what",input=Ts, east_north= "%s,%s" % (eastF,northF)) print "Ts pixel frio=",ts_f lambda_f=(2.501-(0.00236*(ts_f-273.15)))*100