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poldat gnuplot demo

#
# $Id: poldat.dem%v 3.38.2.88 1993/03/04 01:47:16 woo Exp woo $
#
#
set size .8,1.0
set time
set clip
set grid
set noborder
set noparam
set title "Antenna Pattern"
set xlabel "Azimuth"
set ylabel "dBSM"
set data style line
set angles degrees
set polar
set yrange [-220:220]
set rrange [-200:60]
plot "polar.dat" using 1:5,"antenna.dat"

set nogrid
set nopolar
set title "Primitive Smith Chart"
set nokey
set xlabel "Impedance or Admittance Coordinates"
set para
set nogrid
set rrange [-0 : 10]
set trange [-pi : pi]
set xrange [-1:1]
set yrange [-1:1]
tv(t,r) = sin(t)/(1+r)
tu(t,r) = (cos(t) +r)/(1+r)
cu(t,x) = 1 + cos(t)/x
cv(t,x) = (1+ sin(t))/x
plot cu(t,.1),cv(t,.1),cu(t,.1),-cv(t,.1),\
cu(t,1),cv(t,1),cu(t,1),-cv(t,1),\
cu(t,10),cv(t,10),cu(t,10),-cv(t,10),\
tu(t,.1),tv(t,.1),\
tu(t,.5),tv(t,.5),\
tu(t,1),tv(t,1),\
tu(t,5),tv(t,5),\
tu(t,10),tv(t,10),\
cu(t,.5),cv(t,.5),cu(t,.5),-cv(t,.5),\
tu(t,0),tv(t,0)
#cu(t,5),cv(t,5),cu(t,5),-cv(t,5)

set noparam
set key
set size 1.0,1.0
set notime
set title "" 0,0
set xlabel "" 0,0
set ylabel "" 0,0
set data style points
set angles radians
set nopolar
set yrange [-10:10]
set rrange [0:10]
set auto
set noparam
set border
set nogrid