#!/usr/bin/env bash
#		GMT EXAMPLE 12
#
# Purpose:	Illustrates Delaunay triangulation of points, and contouring
# GMT modules:	makecpt, gmtinfo, contour, text, plot, triangulate, subplot
# Unix progs:	rm
#
gmt begin ex12
	# Contour the data and draw triangles using dashed pen; use "gmt gmtinfo" and "gmt makecpt" to make a
	# color palette (.cpt) file
	T=$(gmt info -T25+c2 @Table_5_11.txt)
	gmt makecpt -Cjet $T
	gmt subplot begin 2x2 -M0.1c -Fs8c/0 -SCb -SRl -R0/6.5/-0.2/6.5 -JX8c -BWSne -T"Delaunay Triangulation"
	# First draw network and label the nodes
	gmt triangulate @Table_5_11.txt -M > net.xy
	gmt plot net.xy -Wthinner -c0,0
	gmt plot @Table_5_11.txt -Sc0.3c -Gwhite -Wthinnest
	gmt text @Table_5_11.txt -F+f6p+r
	# Then draw network and print the node values
	gmt plot net.xy -Wthinner -c0,1
	gmt plot @Table_5_11.txt -Sc0.1c -Gblack
	gmt text @Table_5_11.txt -F+f6p+jLM -Gwhite -W -C1p -D6p/0i -N
	gmt contour @Table_5_11.txt -Wthin -C -Lthinnest,- -Gd3c -c1,0
	# Finally color the topography
	gmt contour @Table_5_11.txt -C -I -c1,1
	gmt subplot end
gmt end show
#
rm -f net.xy