[Gnuplot-info] How to polar plot?

[Nikos <ni...@ma...>]

Hello,

New user to gp.

I would like to dynamically plot a radar plot like this link...
http://www.maich.gr/hup/radar1.jpg

I can get this far...
http://www.maich.gr/hup/polar.jpg

I am able to plot the blank radar, following the demo, but how would I 
add the points and lines from file?
I looked through the docs, but cannot see how to simply plot 4 point 
with connecting lines...


I have 2 files, one containing optimum and one containg calculated 
values for each axis..
The are in rect. coordinates. I saw an old post regarding a possible 
need to convert to polar first..
here's where I'm at..
---
unset border
set terminal jpeg small size 375,375
set output "polar.jpg"
#set size 5/5., 4/3.
set size square
#set size 2/2., 4/3.
#set clip
set polar
set xtics axis nomirror
set ytics axis nomirror
#set samples 160
set zeroaxis
set trange [0:2*pi]
set title "Compromise solution v.s. Reference point"
set ylabel "Cost" -1
set xlabel "CO2" 0,-1
set x2label "Jobs" 0,1
set y2label "Subsidies" 1
#dont show legend
set key off
#set xrange [0 : 0.75]
plot .2,.4,.6,.8,1.0
-----

regards,

nikos