[GRASSLIST:2120] Re: New Location

Ian Macmillan ian_macmillan at umail.ucsb.edu
Wed Dec 31 12:23:58 EST 2003


Hey there Maliheh, I am not sure if you have finished this project yet, but this
might help.  You have imported the jpg correctly into the xy, so that is good. 
You now need to use the imagery commands.  First you need to use i.group to
make an imagery group of your test.r test.b and test.g.  

Then you need to set a target location using i.target.  This will be the
georeferenced location that you will project your rasters into.  In your case
probably a lat-long location.  You will need to create this.  Exit your
location, create a new lat-long location, exit that, and then come back to your
xy location, and set the target location using i.target.  

Then you have to use i.points to set the control points.  This should be self
explanatory once you use it.  After i.points, use i.rectify.  First order
transformation should be fine for what you need.  After that finishes, exit the
xy location, go into the lat-long location, and the images should be there. 

Good luck

ian




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