Add new test and in DVC

test/baseline/psscale.dvc

@@ -1,5 +1,6 @@
 outs:
-- md5: 452ffd60491b33499fed19555a0bb535.dir
- size: 1400714
- nfiles: 25
+- md5: 6e77da8a8cb4a2816e41162fe275360d.dir
+ size: 1431120
+ nfiles: 26
  path: psscale
+ hash: md5

test/psscale/interval-panel.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+#
+# Testing categorical colorbars with default panels and interval annotations
+# E.g., https://forum.generic-mapping-tools.org/t/colorbar-box-and-annotation/4548
+
+ps=interval-panel.ps
+
+cat << EOF > t.cpt
+# COLOR_MODEL = RGB
+0 247/251/255 10 247/251/255
+10 222/235/247 20 222/235/247
+20 198/219/239 50 198/219/239
+50 158/202/225 100 158/202/225
+100 107/174/214 150 107/174/214
+150 066/146/198 200 066/146/198
+200 033/113/181 300 033/113/181
+300 008/081/156 500 008/081/156
+500 008/048/107 600 008/048/107
+EOF
+# Vertical colorbars
+gmt psscale -Ct.cpt -Dx0c/13c+w12c+v -Li3p -F+p2p -P -K > ${ps}
+gmt psscale -Ct.cpt -Dx5c/13c+w12c+v -LI3p -F+p2p -O -K >> ${ps}
+gmt psscale -Ct.cpt -Dx10c/13c+w12c+v -Li3p -O -K >> ${ps}
+gmt psscale -Ct.cpt -Dx15c/13c+w12c+v -LI3p -O -K >> ${ps}
+# Horizontal colorbars
+gmt psscale -Ct.cpt -Dx0c/1c+w18c+h -Li3p -F+p2p -O -K -X-1c >> ${ps}
+gmt psscale -Ct.cpt -Dx0c/4c+w18c+h -LI3p -F+p2p -O -K >> ${ps}
+gmt psscale -Ct.cpt -Dx0c/7c+w18c+h -Li3p -O -K >> ${ps}
+gmt psscale -Ct.cpt -Dx0c/10c+w18c+h -LI3p -O >> ${ps}