Adding second script for plotting coaster

.gitignore

@@ -1,3 +1,5 @@
 **/*.aux
 **/*.log
 **/*.png
+.DS_Store
+guru/*.pdf

guru/gmt-eco-system-rnd.sh

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+#!/usr/bin/env bash
+# P. Wessel, Sept 6, 2022
+#
+# Script for making the 2022 GMT ecosystem rounded-square coaster
+# Goals the coasters should achieve:
+# 1. Be a square shape with rounded corners
+# 2. Make it clear what GMT is
+# 3. Show where to learn more
+# 4. Indicate what OS it supports
+# 5. List all the environments it can be used in
+# 6. Indicate NSF support
+
+# Light filled background paper using seashell
+# Coaster is 3.5 x 3.5 inches with corner radius 0.125 inch
+# Intended for https://www.printglobe.com
+
+gmt begin gmt-eco-system-rnd png,pdf E600,N+gseashell
+	# Thick primary and thin secondary rounded frame drawn as symbols
+	# Size of 3.5 inch outer rectangle so that outside of the 1p pen matches the dimension
+	Wo=$(gmt math -Q 3.5 1 72 DIV SUB =)
+	Ro=0.125	# Corner radius of outer rectangle
+	echo 0 0 | gmt plot -R-1/1/-1/1 -JX3.5i -W1p -SR${Wo}i/${Wo}i/${Ro}i
+	# Inner rectangle should have a gap of 2p then drawn with 0.25p pen
+	Wi=$(gmt math -Q ${Wo} 2.25 72 DIV SUB =)
+	Ri=$(gmt math -Q ${Ro} ${Wo} ${Wi} SUB 2 DIV SUB =)
+	echo 0 0 | gmt plot -W0.25p -SR${Wi}i/${Wi}i/${Ri}i
+	# Place GMT logo without any label
+	gmt logo -DjCT+w2.75i+o0/0.075i -Sn
+	# Add labels and purpose
+	echo " 0 0.30 generic-mapping-tools.org"                  | gmt text -F+f11p,Courier-Bold,92/102/132
+	echo " 0 0.15 Data Processing \035 Plots \035 Animations" | gmt text -F+f15p,Palatino-Italic,92/102/132
+	echo " 0 0 Multi-Platform \035  Multi-Language"           | gmt text -F+f15p,Palatino-Italic,92/102/132
+	# Separating line
+	gmt plot -W1p <<- EOF
+	-0.95	-0.11
+	0.95	-0.11
+	EOF
+	# Place GMT QR code
+	echo 0 -0.4 | gmt plot -SkQR_transparent/1i -G92/102/132
+	# Ecosystem identifiers
+	gmt text -F+f16p,Helvetica-Bold,238/86/52+jCM <<- EOF
+	-0.65 -0.22 CMD
+	-0.65 -0.4 JULIA
+	-0.65 -0.58 MATLAB
+	0.65 -0.22 SHELL
+	0.65 -0.4 PYTHON
+	0.65 -0.58 OCTAVE
+	EOF
+	# OS supported
+	echo "Linux \031 macOS \031 Windows" | gmt text -F+cBC+f14p,Helvetica-Bold,125/168/125 -Dj0/0.385i
+	# Funding
+	echo "SUPPORTED BY THE US NATIONAL SCIENCE FOUNDATION" | gmt text -F+cBC+f8p,Helvetica-Bold,92/102/132 -Dj0/0.12i
+gmt end show