Groups > comp.graphics.apps.gnuplot > #3854

Re: Variable fill color for polygons when using "filledcurves closed"

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From	Karl Ratzsch <mail.kfr@gmx.net>
Newsgroups	comp.graphics.apps.gnuplot
Subject	Re: Variable fill color for polygons when using "filledcurves closed"
Date	Wed, 10 Jan 2018 09:11:56 +0100
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Am 10.01.2018 um 04:43 schrieb Hua Tong:
> I want to plot polygons with filled color according to some variable defined, e.g., in third column.
> In short, the data format is as below:

> What I get is that the edge of each polygon is colored according to the third column, but not the filled color.

(gnuplot version? following is done with 5.2pl2)

Hm, the following fills the polygons with the demanded colour
alright. The last polygon breaks open if you remove the empty line
behind it. Looks like a separate bug to me.

===========
$dat << EOD
1 1 10
1 2 10
2 2 10
2 1 10

3 1 20
3 2 20
4 2 20
4 1 20

1 3 40
1 4 40
2 4 40
2 3 40

EOD

#set yr [20:35]
#plot $dat u 1:2:3 w filledcurves closed fillcolor palette
plot $dat u 1:2:3 w filledcurves closed palette # does the same
============

If you uncomment the yr setting, the filling becomes monochrome,
however. Seems "palette" and "filledcurves" don't agree on how to
use the value in the third column.

All in all, also after trying to find it in the help, i think this
is not really supposed to work.

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Thread

Variable fill color for polygons when using "filledcurves closed" Hua Tong <tonghuagg@gmail.com> - 2018-01-09 19:43 -0800
  Re: Variable fill color for polygons when using "filledcurves closed" Karl Ratzsch <mail.kfr@gmx.net> - 2018-01-10 09:11 +0100
    Re: Variable fill color for polygons when using "filledcurves closed" Ethan A Merritt <EAMerritt@gmail.com> - 2018-01-10 08:36 -0800
      Re: Variable fill color for polygons when using "filledcurves closed" Ethan Merritt <sfeam@users.sf.net> - 2018-01-10 18:10 +0000

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