X-Received: by 2002:aed:2ee1:: with SMTP id k88mr67017099qtd.25.1578254714439; Sun, 05 Jan 2020 12:05:14 -0800 (PST)
X-Received: by 2002:a9d:6b03:: with SMTP id g3mr7714026otp.200.1578254714282; Sun, 05 Jan 2020 12:05:14 -0800 (PST)
Path: csiph.com!xmission!news.snarked.org!border2.nntp.dca1.giganews.com!border1.nntp.dca1.giganews.com!nntp.giganews.com!g89no3637041qtd.0!news-out.google.com!w29ni876qtc.0!nntp.google.com!g89no3637040qtd.0!postnews.google.com!google-groups.googlegroups.com!not-for-mail
Newsgroups: comp.graphics.apps.gnuplot
Date: Sun, 5 Jan 2020 12:05:14 -0800 (PST)
Complaints-To: groups-abuse@google.com
Injection-Info: google-groups.googlegroups.com; posting-host=78.8.172.211; posting-account=8toHEAoAAADQ-dL6A4ljPhheb_AbUIu4
NNTP-Posting-Host: 78.8.172.211
User-Agent: G2/1.0
MIME-Version: 1.0
Message-ID: <a15b2766-db36-4b0f-a50a-6eb86a751fda@googlegroups.com>
Subject: gray
From: Adam Majewski <adam1maj@gmail.com>
Injection-Date: Sun, 05 Jan 2020 20:05:14 +0000
Content-Type: text/plain; charset="UTF-8"
Lines: 30
Xref: csiph.com comp.graphics.apps.gnuplot:4279

Hi,
I can set palette gray


   set palette functions gray,gray,gray 

then it is linear gradient and gray means linear function f(x) = x

If I set : 


  set palette gray

then it is nonlinear gradient : https://stackoverflow.com/questions/32914627/gnuplot-intensity-plot-with-grayscale


What means gray here?
Where can I find code for set palette gray ?

TIA

Adam

https://gitlab.com/adammajewski/color_gradient