<HTML><BODY>Hi<br>I have calculated the vegetation index using Grass 7 graphically and it was done perfectly, my question is:<br>can I obtain a sample programming code in c language which do the same thing without using the graphical interface ?<br>Or is there anybody knows which methods from Grass 7 programming API are used to do this calculation.<br>Also I will appreciate any reference link or idea from where I can start.<br><br><br>Thanks in advance for any help.<br><br><br>Regards,<br> Ripsime </BODY></HTML>