Get ready for release

Temporarily cset GMT_PUBLIC_RELEASE to TRUE.  Also added the add_Definition (DCHRISTMAS) to the CMake system for building the Christmas projection used by share/tools/christmas-cube.sh

cmake/ConfigDefault.cmake

@@ -56,7 +56,7 @@ set (GMT_PACKAGE_VERSION_PATCH 0)
 # Whether to make a public release.
 # When making internal releases or just an ordinary developer build, it is set to FALSE.
 # When making *public* release, uncomment to set it to TRUE.
-# set (GMT_PUBLIC_RELEASE TRUE)
+set (GMT_PUBLIC_RELEASE TRUE)
 
 # The GMT package version.
 set (GMT_PACKAGE_VERSION "${GMT_PACKAGE_VERSION_MAJOR}.${GMT_PACKAGE_VERSION_MINOR}.${GMT_PACKAGE_VERSION_PATCH}${GMT_PACKAGE_VERSION_SUFFIX}")

cmake/ConfigUserAdvancedTemplate.cmake

@@ -237,6 +237,10 @@ set (GMT_ENABLE_OPENMP TRUE)
 #	message("Add Xcode definition for GMT")
 #endif()
 
+# Uncomment if you want to temporarily replace Miller projection with the "Christmas" projection.
+# add_definitions(-DCHRISTMAS)
+# Then, rebuild GMT and try the script share/tools/christmas-cube.sh
+
 # Uncomment these two statements if you are a developer debugging GMT:
 #add_definitions(-DDEBUG)
 #add_definitions(-DMEMDEBUG) # Turn on memory tracking; see gmt_memory .c on MEMDEBUG for information

share/tools/christmas-cube.sh

@@ -0,0 +1,90 @@
+#!/usr/bin/env bash
+#
+# Copyright (c) 1991-2023 by the GMT Team (https://www.generic-mapping-tools.org/team.html)
+# See LICENSE.TXT file for copying and redistribution conditions.
+#
+# GMT 3-D Christmas Ornament 2023!
+# Un-comment the CHRISTMAS setting in ConfigUserAdvanced.cmake and recompile GMT.
+# Then run this script for a 3D cube that you assemble with scissors and tape!
+
+SIDE=8		# The side dimension of the cube (cm)
+#------------------------------------------------
+WQ=${SIDE}
+WP=$(gmt math -Q ${SIDE} 2 DIV =)
+H=$(gmt math -Q ${SIDE} 2 SQRT DIV =)
+XSHIFT=$(gmt math -Q ${SIDE} 2 MUL NEG =)
+YSHIFT=$(gmt math -Q ${SIDE} 0 ADD =)
+
+gmt begin christmas-cube pdf
+# N pole area and middle Earth
+	gmt coast -R0/90/-45/45     -JQ45/${WQ}   -B0g15 -Gred
+	gmt coast -R0/90/45/90      -JJ45/${WP}   -B0g15 -Gred -Y${WQ}
+	echo 45 90 | gmt plot -Sa16p -W0.5p -Gyellow
+	gmt coast -R90/180/-45/45   -JQ135/${WQ}  -B0g15 -Gdarkgreen -X${SIDE} -Y-${WQ}
+	gmt coast -R90/180/45/90    -JJ135/${WP}  -B0g15 -Gdarkgreen -Y${WQ}
+	echo 135 90 | gmt plot -Sa16p -W0.5p -Gyellow
+	gmt coast -R180/270/-45/45  -JQ225/${WQ}  -B0g15 -Gred -X${SIDE} -Y-${WQ}
+	echo "225 8 Merry Christmas 2023" | gmt text -F+f24p,33+jCM -N -Gwhite
+	echo "225 -7 From the GMT Team!"   | gmt text -F+f18p,33+jCM -N -Gwhite
+	gmt coast -R180/270/45/90   -JJ225/${WP}  -B0g15 -Gred -Y${WQ}
+	echo 225 90 | gmt plot -Sa16p -W0.5p -Gyellow
+	gmt coast -R270/360/-45/45  -JQ315/${WQ}  -B0g15 -Gdarkgreen -X${SIDE} -Y-${WQ}
+	gmt coast -R270/360/45/90   -JJ315/${WP}  -B0g15 -Gdarkgreen -Y${WQ}
+	echo 315 90 | gmt plot -Sa16p -W0.5p -Gyellow
+# S pole area 
+	gmt coast -R0/90/-90/-45    -JJ45/${WP}   -B0g15 -Gred -X${XSHIFT} -Y-${YSHIFT} -p180
+	echo 45 -90 | gmt plot -Sa16p -W0.5p -Gyellow -p
+	gmt coast -R90/180/-90/-45  -JJ135/${WP}  -B0g15 -Gdarkgreen -X${SIDE} -p
+	echo 135 -90 | gmt plot -Sa16p -W0.5p -Gyellow -p
+	gmt coast -R180/270/-90/-45 -JJ225/${WP}  -B0g15 -Gred -X${SIDE} -p
+	echo 225 -90 | gmt plot -Sa16p -W0.5p -Gyellow -p
+	gmt coast -R270/360/-90/-45 -JJ3155/${WP} -B0g15 -Gdarkgreen -X${SIDE} -p
+	echo 315 -90 | gmt plot -Sa16p -W0.5p -Gyellow -p
+# Dashed cut lines for use with scissors
+	gmt plot -R0/32/-4/12 -Jx1c -W0.25p,blue,- -N -X-32c -Y-4c <<- EOF
+	>
+	32	0
+	33	0
+	33	8
+	32	8
+	32.707	8.707
+	28	13.3
+	24	9
+	24	8
+	>
+	16	8
+	16	9
+	12	13.3
+	8	9.3
+	8	8
+	>
+	28	13
+	28	12
+	>
+	12	13
+	12	12
+	>
+	0	0
+	-1	0
+	-1	8
+	0	8
+	>
+	0	0
+	-0.707	-0.707
+	4	-5
+	8	-1
+	8	0
+	>
+	16	0
+	16	-1
+	20	-5
+	24	-1
+	24	0
+	>
+	4	-5
+	4	-4
+	>
+	20	-5
+	20	-4
+	EOF
+gmt end show

src/gmt_proj.c

@@ -786,7 +786,6 @@ GMT_LOCAL void gmtproj_vmiller (struct GMT_CTRL *GMT, double lon0, double slat)
 
 GMT_LOCAL void gmtproj_miller (struct GMT_CTRL *GMT, double lon, double lat, double *x, double *y) {
 	/* Convert lon/lat to Cylindrical equidistant x/y */
-
 	gmt_M_wind_lon (GMT, lon)	/* Remove central meridian and place lon in -180/+180 range */
 	if (lat > 0.0) {
 		*x = (0.5 + lon * (90.0 - lat) / 4050.0) * GMT->current.proj.j_x;
@@ -813,7 +812,7 @@ GMT_LOCAL void gmtproj_imiller (struct GMT_CTRL *GMT, double *lon, double *lat,
 #else
 GMT_LOCAL void gmtproj_vmiller (struct GMT_CTRL *GMT, double lon0, double unused) {
 	/* Set up a Miller Cylindrical transformation */
-
+	gmt_M_unused (unused);
 	gmtproj_check_R_J (GMT, &lon0);
 	GMT->current.proj.central_meridian = lon0;
 	GMT->current.proj.j_x = D2R * GMT->current.proj.EQ_RAD;