Hamish wrote:
Eric wrote:
I'll post here before checking on the GMT list;
hopefully I can get some answers from a GRASS/GMT guru...
Moritz wrote:
I can't help you on your precise questions, but have you seen
Dylan's article:
http://casoilresource.lawr.ucdavis.edu/drupal/node/561
(see link to pdf on that page) ?
and of course the GRASS Wiki:
http://grass.osgeo.org/wiki/GMT
(which of course forever needs updating)
Hamish
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By a tiff, do you mean a georeferenced map? I've plotted aerial photos
that I rectified in GRASS using the following to export the RGB bands:
r.mapcalc "image.red=r#image; image.green=g#image; image.blue=b#image"
r.out.bin -h input=image.red output=image.red.grd
r.out.bin -h input=image.green output=image.green.grd
r.out.bin -h input=image.blue output=image.blue.grd
Followed by:
grdimage image.red.grd image.green.grd image.blue.grd -J -R -B ...etc.
I've just put the same workflow onto the wiki. I've also used r.his to
make coloured shaded relief maps, and plotted them in GMT using the same
method. I don't think that it is the optimal method, but at least it
preserved my colour rules.
Cheers
John
--
Dr John Stevenson
Postdoctoral Research Associate
School of Earth, Atmospheric and Environmental Sciences
Williamson Building (Room 2.42)
University of Manchester
Manchester M13 9PL, UK
tel. +44(0)161 306 6585; fax. +44(0)161 306 9361;
[email protected]
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