#!/usr/bin/env bash
gmt begin GMT_-B_linear
	gmt basemap -R0/12/0/0.95 -JX7.5c/0.75c -Ba4f2g1+lFrequency+u" %" -BS
	gmt plot -Sv2p+e+a60 -W0.5p -Gblack -Y0.25c -N << EOF
2 0 0 0.5
2 0 180 0.5
7 0 0 0.25
7 0 180 0.25
9.5 0 0 0.125
9.5 0 180 0.125
EOF
	gmt text -Gwhite -C1p -F+f9p+jCB << EOF
2 0.2 annotation
7 0.2 frame
9.5 0.2 grid
EOF
gmt end show