pscoast -R140/148/41/46 -Jm0.5 -B2 -P -W -Dh -K > track_hokkaido01.ps
psxy track.txt -Jm  -W2/255/0/0ta  -R -O -K >> track_hokkaido01.ps
psxy track.txt -Jm -Sc0.05 -G100 -W0.2  -R -O >> track_hokkaido01.ps