/usr/share/doc/gmt-examples/examples/ex17/job17.sh is in gmt-examples 4.5.6-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 | #!/bin/bash
# GMT EXAMPLE 17
# $Id: job17.sh,v 1.12 2011/02/28 00:58:03 remko Exp $
#
# Purpose: Illustrates clipping of images using coastlines
# GMT progs: grd2cpt, grdgradient, grdimage, pscoast, pstext
# Unix progs: rm
#
. ../functions.sh
ps=../example_17.ps
# First generate geoid image w/ shading
grd2cpt india_geoid.nc -Crainbow > geoid.cpt
grdgradient india_geoid.nc -Nt1 -A45 -Gindia_geoid_i.nc
grdimage india_geoid.nc -Iindia_geoid_i.nc -JM6.5i -Cgeoid.cpt -P -K \
-U"Example 17 in Cookbook" > $ps
# Then use pscoast to initiate clip path for land
pscoast -Rindia_geoid.nc -J -O -K -Dl -Gc >> $ps
# Now generate topography image w/shading
echo "-10000 150 10000 150" > gray.cpt
grdgradient india_topo.nc -Nt1 -A45 -Gindia_topo_i.nc
grdimage india_topo.nc -Iindia_topo_i.nc -J -Cgray.cpt -O -K >> $ps
# Finally undo clipping and overlay basemap
pscoast -R -J -O -K -Q -B10f5:."Clipping of Images": >> $ps
# Put a color legend on top of the land mask
psscale -D4i/7.6i/4i/0.2ih -Cgeoid.cpt -B5f1/:m: -I -O -K >> $ps
# Add a text paragraph
pstext -R -J -O -m -Wwhite,Othinner -D-0.1i/0.1i >> $ps << END
> 90 -10 12 0 4 RB 12p 3i j
@_@%5%Example 17.@%%@_ We first plot the color geoid image
for the entire region, followed by a gray-shaded @#etopo5@#
image that is clipped so it is only visible inside the coastlines.
END
# Clean up
rm -f geoid.cpt gray.cpt *_i.nc .gmt*
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