Groups > comp.graphics.apps.gnuplot > #3445

Re: Varying colour of a line plot, using a palette

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From	John Edwards <johned0@gmail.com>
Newsgroups	comp.graphics.apps.gnuplot
Subject	Re: Varying colour of a line plot, using a palette
Date	Fri, 11 Nov 2016 10:23:12 +0000
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On 10/11/2016 17:32, Karl Ratzsch wrote:
> Am 10.11.2016 um 12:03 schrieb John Edwards:
>> Dear all,
>> I was wondering if anyone can think of a neat trick to vary the
>> color of a line according to magnitude. E.g. If I plot sin(x) I'd
>> like the color to vary with signal matnitude.
>>
>> To explain further what I am trying to do, I'd like to use a palette
>> of greens and reds so that when the signal goes over a threshold
>> then the plot would vary (slowly) from green to red to highlight
>> specific issues.
>
> please answer in the newsgroup, not via email
>
Hi Karl,
Thanks very much, for the very quick and useful response.

Also apologies for the reply via email - user error on my part.

It has made me wonder if I can tweak your technique to implement a
"set palette rgb" type of function as used in splot etc.
All the best,
John

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Thread

Varying colour of a line plot, using a palette John Edwards <johned0@gmail.com> - 2016-11-10 11:03 +0000
  Re: Varying colour of a line plot, using a palette Karl Ratzsch <mail.kfr@gmx.net> - 2016-11-10 13:37 +0100
    Re: Varying colour of a line plot, using a palette Ethan A Merritt <sfeam@users.sourceforge.net> - 2016-11-10 15:36 -0800
      Re: Varying colour of a line plot, using a palette John Edwards <johned0@gmail.com> - 2016-11-11 10:24 +0000
  Re: Varying colour of a line plot, using a palette Karl Ratzsch <mail.kfr@gmx.net> - 2016-11-10 18:32 +0100
    Re: Varying colour of a line plot, using a palette John Edwards <johned0@gmail.com> - 2016-11-11 10:23 +0000

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