Groups > comp.graphics.apps.gnuplot > #4491

Re: mapping z-values as point colors onto 2D plot

Newsgroups	comp.graphics.apps.gnuplot
Date	2022-09-20 05:18 -0700
References	<1193247108.148779.97930@i13g2000prf.googlegroups.com> <ffo016$7a2$1@brogar.bmsc.washington.edu> <1193252197.340351.153900@i38g2000prf.googlegroups.com> <ffo75j$ubs$03$1@news.t-online.com> <1193257990.150945.24180@v23g2000prn.googlegroups.com>
Message-ID	<e6aa66a3-d12e-437d-84ac-4cc7707a47a3n@googlegroups.com> (permalink)
Subject	Re: mapping z-values as point colors onto 2D plot
From	Alicreance Hiyadutuje <hiyadutujea@gmail.com>

Show all headers | View raw

On Wednesday, October 24, 2007 at 10:33:10 PM UTC+2, Hallmarc wrote:
> On Oct 24, 3:41 pm, Hans-Bernhard Bröker <HBBroe...@t-online.de>
> wrote:
> > Hallmarc wrote:
> > > Unfortunately, there's something I'm not understanding about pm3d:
> >
> > > gnuplot> splot "socks.dat" using 1:3:4 with pm3d
> > > Warning: Single isoline (scan) is not enough for a pm3d plot.
> > > Hint: Missing blank lines in the data file? See 'help pm3d' and
> > > FAQ.
> >
> > > socks.dat is a file with several hundred thousand rows, four columns
> > > (column 2 is not used), and no breaks between rows.
> >
> > ... which means it doesn't describe any surface, so pm3d can't plot it
> > as a coloured surface. Looks like what you really want is a plot of
> > coloured points, i.e.:
> >
> > set view map
> > splot 'data' u 1:2:(0.0):3 with points palette
> >
> > Either that, or you should insert the missing breaks into the data file.
> That did the trick, thanks! I guess the third coordinate of 0.0 just
> basically push everything up against a 2D plane...excellent.
In my case, I was missing only "with points palette".

Back to comp.graphics.apps.gnuplot | Previous | Next | Find similar

Thread

Re: mapping z-values as point colors onto 2D plot Alicreance Hiyadutuje <hiyadutujea@gmail.com> - 2022-09-20 05:18 -0700

csiph-web