Groups > comp.graphics.apps.gnuplot > #396

Re: Back side of surfaces - linestyle

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From	sfeam <sfeam@users.sourceforge.net>
Newsgroups	comp.graphics.apps.gnuplot
Subject	Re: Back side of surfaces - linestyle
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Date	Tue, 21 Jun 2011 23:17:57 -0700
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macko wrote:

> 
> Using v4.4.3, I am trying to control colors of two sides of a surface...
> but I can only set one color. Here is an example:
> 
> ---
> set terminal pdf size 6,5 enhanced
> 
> set style line 1 lc rgbcolor "blue"
> set style line 2 lc rgbcolor "black"
> set style line 3 lc rgbcolor "red"
> 
> set hidden3d offset 1
> show hidden3d #says "Back side of surfaces has linestyle offset of 1"
> 
> splot sin(x*y) w l linestyle 1
> ---
> 
> The "linestyle 1" part selects a color of *both* sides; the "offset 1"
> does not seem to work. What am I missing?

Aha. I understand now.

The answer for version 4.4 is to add the command
    set style increment user

This will cause the program to step through line _styles_ rather
than line _types_.

This command is obscure, non-obvious, etc, etc, and is not needed in
version 4.5, where you can use the more obvious commands:
   set linetype 1 lc rgbcolor "blue"
   set linetype 2 lc rgbcolor "black"

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Back side of surfaces - linestyle macko <macko@nospam.org> - 2011-06-21 16:23 +0200
  Re: Back side of surfaces - linestyle sfeam <sfeam@users.sourceforge.net> - 2011-06-21 09:53 -0700
    Re: Back side of surfaces - linestyle macko <macko@nospam.org> - 2011-06-21 22:22 +0200
  Re: Back side of surfaces - linestyle Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2011-06-21 22:57 +0200
  Re: Back side of surfaces - linestyle sfeam <sfeam@users.sourceforge.net> - 2011-06-21 23:17 -0700

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