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On 06/14/2010 02:42 PM, Kyaw Moe Aung wrote:
<blockquote
cite="mid:AANLkTil264v1TilP-Y3-MAN1dD3hsRcanFTSCyBJMgqc@mail.gmail.com"
type="cite">Dear Micha and Hamish<br>
Thanks for your solution and explanation regarding to raster import.
Still i am confusing with rgb file. There are three rgb files that
created first then when using i.rectify, another three rgb come with
given extension. That make in total 6 files. Then r.composite as
another colored image. I wish to use this color contour map just for
digitizing. So can i delete all 6 rgb files. I tried to delete three
rgb files after compositing. but there is a problem for rectifying. So
i had to import again those deleted rgb files. And for rectifying it
took half an hour for completion. That's why i asked this question.<br>
Thanks very much.<br clear="all">
<br>
</blockquote>
I think your workflow should be:<br>
1) import the tiff (r.in.gdal) creating the three *.red, *.green *.blue
files<br>
2) Add all three bands to an imagery group (i.group)<br>
3) Set up points for the rectification (i.points)<br>
4) Run i.rectify<br>
5) Now you can do r.composite with the new, rectified triple of *.red,
*.green, *.blue. (Review Hamish's comments about loss of information
when using r.composite)<br>
6) If you're satisfied with the result, remove all 6 separate band
rasters.<br>
<br>
<blockquote
cite="mid:AANLkTil264v1TilP-Y3-MAN1dD3hsRcanFTSCyBJMgqc@mail.gmail.com"
type="cite">-- <br>
-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-<br>
U Kyaw Moe Aung, Staff Officer<br>
Planning & Statistics Division, Forest Department, Director
General's Office<br>
Nay Pyi Taw, Ph:095-67-405016, Fax: 095-67-405016<br>
<br>
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</blockquote>
<br>
<br>
<pre class="moz-signature" cols="72">--
Micha Silver
Arava Development Co. +972-52-3665918
<a class="moz-txt-link-freetext" href="http://surfaces.co.il">http://surfaces.co.il</a>
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