WED-A_Fig_3.sh

#!/usr/bin/env bash
#
# Figure 3 in this paper: WED-A_Fig_3.sh
# https://github.com/GenericMappingTools/gmt-2024-animation
#
# Wessel, Esteban & Delaviel-Anger, 2024,
#	The Generic Mapping Tools and Animations for the Masses,
#	Geochem. Geophys. Geosyst.
#
# Purpose: Plot of the time-line of a movie with optional title and fade sequence.
#--------------------------------------------------------------------------------
NAME=WED-A_Fig_3

gmt begin ${NAME} png
	gmt set GMT_THEME cookbook
	cat <<- EOF > Custom_annot.txt
	0	afg	0
	1	afg	t@-i@-
	5	afg	t@-o@-
	6	afg	t@-b@-
	7	afg	f@-i@-
	14	afg	f@-o@-
	15	afg	t@-e@-
	EOF
	gmt math -T0/1/25+n 1 PI T MUL COS SUB 2 DIV 100 MUL = Timeline.txt
	gmt math -T1/5/1 100 = >> Timeline.txt
	gmt math -T5/6/25+n 1 PI T 5 SUB MUL COS ADD 2 DIV 100 MUL = >> Timeline.txt
	gmt math -T6/7/25+n 1 PI T 6 SUB MUL COS SUB 2 DIV 100 MUL = >> Timeline.txt
	gmt math -T7/14/1 100 = >> Timeline.txt
	gmt math -T14/15/25+n 1 PI T 14 SUB MUL COS ADD 2 DIV 100 MUL = >> Timeline.txt
	gmt plot -R0/15/0/140 -JX15c/2.5c -BxcCustom_annot.txt -Byaf+l"fade-level" -W1.5p -BWS Timeline.txt
	gmt plot -Sv24p+bt+et+s -W1.5p,red -N <<- EOF
	0	110	6	110
	6	110	15	110
	EOF
	gmt text -F+f10p+jCB -C1p -Gwhite <<- EOF
	0.5 120 FADE
	6 120 FADE
	14.5 120 FADE
	3 120 TITLE SEQUENCE
	3 50 [OPTIONAL]
	10.5 50 [REQUIRED]
	10.5 120 ANIMATION SEQUENCE
	EOF
	# Delete temporary files
	rm -f Custom_annot.txt Timeline.txt
gmt end show