gnuplot-info

[Gnuplot-info] different colors on the same curve

[chedly g. <che...@gm...>]

Hello,
i want to plot a curve with different colors. For example, if the Xrange is
[0:500], i want that between [0:100] the curve is in red (for example),
between [100:200] the curve is in green, between [200:300] the curve is in
red again... and so on.
How can i do this?
thank you

Re: [Gnuplot-info] different colors on the same curve

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

chedly ghedira wrote:
> i want to plot a curve with different colors. For example, if the Xrange is
> [0:500], i want that between [0:100] the curve is in red (for example),
> between [100:200] the curve is in green, between [200:300] the curve is in
> red again... and so on.
> How can i do this?

That may very well be the wrong question.  You should first ask yourself 
*if* you should do it this way.  Such a plot would visually scream at 
the reader, but convey no useful information doing so.  It would 
basically be an intentional obfuscation of the plot.

If you really must, you'll have to cut your data into two separate 
files, one holding the 'greeen' parts, the other the 'red' parts (with 
blank records where the 'wrong' parts would have been, in each of them.
Then plot both files using whatever linetype you need to get red and 
green on whatever terminal you're using.

Re: [Gnuplot-info] different colors on the same curve

[chedly g. <che...@gm...>]

>
> thank you
> the behavior of the curve changes every 10 seconds (for example), so to
> show this change of behavior, i want to change the color of the curve eve=
ry
> 10 seconds. i can't do it manually as *Tammo Heeren* said (in the plot
> command) or as * Hans-Bernhard Broeker* said  (by dividing the file in
> many other files) because i will have tens of files.
> i will try to change the backgroung color every 10 seconds.
>
> On 1/26/06, Tammo Heeren <Pu...@ta... > wrote:
> >
> > How about you split the curve up into section?
> > Try this:
> >
> > f(x) =3D sin(x)
> > set xrange [0:pi]
> > plot x<=3Dpi/4 ? f(x) : 1/0 with lines lt 0,\
> >        x>pi/4 && x<=3Dpi/2 ? f(x) : 1/0 with lines lt 1,\
> >        x>pi/2 && x<=3D3*pi/4 ? f(x) : 1/0 with lines lt 2,\
> >        x>3*pi/4 && x<=3Dpi ? f(x) : 1/0 with lines lt 3
> >
> > This should get you started.
> >
> > Tammo
> >
> >
> >
> > On 26 Jan 2006 at 4:37, chedly ghedira wrote:
> >
> > >
> > > Hello,
> > > i want to plot a curve with different colors. For example, if the
> > Xrange is [0:500], i want that
> > > between [0:100] the curve is in red (for example), between [100:200]
> > the curve is in green,
> > > between [200:300] the curve is in red again... and so on.
> > > How can i do this?
> > > thank you
> >
> >
> >
>