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I am sure other members of this list can answer your question better than
I, but usually create an indexed color tiff before importing it onto
GRASS. The GIMP does a very nice job of this. If you a bringing in more
than one TIFF, be sure you use the same palette for all the
images.<br><br>
Once you get all your images into GRASS, use the r.patch command to
mosaic them together.<br><br>
To reproject them, use r.proj. Your state plane coordinate system should
be on the same datum as your lat/lon when you use r.proj because while
r.proj does a great job of reprojecting, it does not handle datum
transformations.<br><br>
Rich<br><br>
At 04:15 PM 11/14/2002 -0800, you wrote:<br><br>
<blockquote type=cite class=cite cite><font face="arial" size=2>Hi
All,</font><br>
<br>
<font face="arial" size=2>I'm a new user to GRASS and I installed it
yesterday, and did the tutorial with the spearhead sample data online.
Anyhow, now that I have some sort of idea of what I'm doing, I'm running
into some trouble. I have a bunch of data, and I would like to make a
mosaic of it, then reproject it into LAT/LON. The current projection is
State Plane. Here is what I've done so far.</font><br>
<br>
<font face="arial" size=2>I have imported the .tif files (with the .tfw)
into GRASS, and it separates it into the RGB bands. So what I did was, I
used the d.rgb command to display the image, but the colors come out all
weird, how do I make it display the real colors. I have also tried using
r.in.gdal but when I display that, it comes out black and white. I have
also tried r.composite and it also displays weird colors (like a flash
back to the 80's with neon colors and all)</font></blockquote>
<x-sigsep><p></x-sigsep>
<br>
Richard W. Greenwood, PLS<br>
Greenwood Mapping, Inc.<br>
Rich@GreenwoodMap.com<br>
(307) 733-0203<br>
<a href="http://www.greenwoodmap.com/" eudora="autourl">http://www.GreenwoodMap.com</a></html>