pltype 4

window off
box off
mercat on
C size 8.0, 10.5
C rotate on
C origin 1.5, 3
xlab Longitude
ylab Latitude

xaxis 122.415,122.375,0.005
yaxis 36.68,36.705,0.005

axlint 1,1
C axnsig 3,3
axnmtc 1,1

xfor (f8.3,''LONE'')
yfor (f7.3,''LAT'')
vars,1,,2,1

pen 1,4
line 1,3,3
rd gps.dat 

set num 'ppl$points' - 5 
set intnum $integer(num)
rwd

pen 2,2
line 2,22,3
skp,'intnum',gps.dat
rd

C line 1,3,3
axlabp -1,-1
title "GPS position of mooring M2"
plot