gnuplot-info

[Gnuplot-info] Question about gnuplot

[frederick s. <fre...@ya...>]

Hello,
 
I am a french student and I try to use gnuplot with a data file like 
that:
#fichier test
0 0 100 
0 10 90 
0 20 80 
0 30 70 
0 40 60
0 50 50 
0 60 40
0 70 30
0 80 20
0 90 10 
0 100 0
10 0 90
 
I would like to use colors for the third column with the "set pm3d" 
command but it doesn't work.
I wonder too where I have to put all the "set" commands : in my data file or directly in gnuplot interface?
Is anyone can help me please?
 
Thanks
 
frédérick.


		
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[Gnuplot-info] Question about gnuplot

[Mariano J. P. <mar...@ve...>]

Ladies, Gentlemen,
    A very powerful and useful program for which I am eternally grateful. I
must ask, however, if anyone has implemented it into windows DLL that can be
called directly from VB.Net?  Any information would be greatly appreciated.
 
Mariano J. Padilla

Re: [Gnuplot-info] Question about gnuplot

[Hans-Bernhard B. <br...@ph...>]

frederick surzur wrote:
> I would like to use colors for the third column with the "set pm3d" 
> command but it doesn't work.

"Doesn't work" how?  What exactly did you try, what were the results,
and why did you consider them wrong?

As to your data file: you may want to have a look at 'help datafile' to
look up "grid structure", and 'help glossary' to understand some of the
terms used therein.

> I wonder too where I have to put all the "set" commands : in my data
> file or directly in gnuplot interface?

Either at the gnuplot command-line interface, or in a script file which
you "load" from there, or pass to gnuplot as a start-up option.

[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

Re: [Gnuplot-info] How to polar plot?

[Hans-Bernhard B. <br...@ph...>]

Nikos wrote:

> I am able to plot the blank radar, following the demo, but how would I 
> add the points and lines from file?

You should start by not plotting the grid via functions, but via

	set grid polar

For the remaining details, I highly recommend you have a look at the
example script 'poldat.dem' you received with gnuplot.  The second
plot ("antenna pattern") should be almost exactly equivalent to what
you're trying to do.

> I have 2 files, one containing optimum and one containg calculated 
> values for each axis..
> The are in rect. coordinates. 

Why?

> I saw an old post regarding a possible need to convert to polar
> first..

Well, you selected "polar" mode, so yes, you data should be in polar 
mode.  Otherwise, turn off 'set polar' and plot them as they are.