#!/bin/sh
#		GMT EXAMPLE 12
#		$Id: job12.sh,v 1.13 2009/04/16 19:38:18 guru Exp $
#
# Purpose:	Illustrates Delaunay triangulation of points, and contouring
# GMT progs:	makecpt, minmax, pscontour, pstext, psxy, triangulate
# Unix progs:	$AWK, echo, rm
#
# First draw network and label the nodes
#
ps=example_12.ps
triangulate table_5.11 -m > net.xy
psxy -R0/6.5/-0.2/6.5 -JX3.06i/3.15i -B2f1WSNe -m net.xy -Wthinner -P -K -X0.9i -Y4.65i > $ps
psxy table_5.11 -R -J -O -K -Sc0.12i -Gwhite -Wthinnest >> $ps
$AWK '{print $1, $2, 6, 0, 0, "CM", NR-1}' table_5.11 | pstext -R -J -O -K >> $ps
#
# Then draw network and print the node values
#
psxy -R -J -B2f1eSNw -m net.xy -Wthinner -O -K -X3.25i >> $ps
psxy -R -J -O -K table_5.11 -Sc0.03i -Gblack >> $ps
$AWK '{printf "%g %s 6 0 0 LM %g\n", $1, $2, $3}' table_5.11 | pstext -R -J -O -K -Wwhite,o \
	-C0.01i/0.01i -D0.08i/0i -N >> $ps
#
# Then contour the data and draw triangles using dashed pen; use "minmax" and "makecpt" to make a
# color palette (.cpt) file
#
T=`minmax -T25/2 table_5.11`
makecpt -Cjet $T > topo.cpt
pscontour -R -J table_5.11 -B2f1WSne -Wthin -Ctopo.cpt -Lthinnest,- -G1i/0 -X-3.25i -Y-3.65i -O -K \
	-U"Example 12 in Cookbook" >> $ps
#
# Finally color the topography
#
pscontour -R -J table_5.11 -B2f1eSnw -Ctopo.cpt -I -X3.25i -O -K >> $ps
echo "3.16 8 30 0 1 BC Delaunay Triangulation" | \
	pstext -R0/8/0/11 -Jx1i -O -X-3.25i >> $ps
#
rm -f net.xy topo.cpt .gmt*