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## Copyright (C) 1996, 1997 John W. Eaton
##
## This file is part of Octave.
##
## Octave is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2, or (at your option)
## any later version.
##
## Octave is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Octave; see the file COPYING. If not, write to the Free
## Software Foundation, 59 Temple Place - Suite 330, Boston, MA
## 02111-1307, USA.
## usage: fmt = __pltopt__ (caller, opt)
##
## Decode plot option strings.
##
## If OPT is a valid option string, return a string of the form "w l 2"
## ("with lines 2"). Uses abbreviations for the options to avoid
## overrunning gnuplot's command line buffer unnecessarily.
##
## OPT can currently be some combination of the following:
##
## "-" for lines plot style (default).
## "." for dots plot style.
## "@" for points plot style.
## "-@" for linespoints plot style.
## "^" for impulses plot style.
## "L" for steps plot style.
## "#" for boxes plot style.
## "~" for errorbars plot style.
## "#~" for boxerrorbars plot style.
## "n" with n in 1-6 (wraps at 8), plot color
## "nm" with m in 1-6 (wraps at 6), point style (only valid for "@" or "-@")
## "c" where c is one of ["r", "g", "b", "m", "c", "w"] colors.
## ";title;" where "title" is the label for the key.
##
## Special points formats:
##
## "+", "*", "o", "x" will display points in that style for term x11.
##
## The legend may be fixed to include the name of the variable
## plotted in some future version of Octave.
##
## The colors, line styles, and point styles have the following
## meanings for X11 and Postscript terminals under Gnuplot 3.6.
##
## Number ------ Color ------- Line Style ---- Points Style ----
## x11 postscript postscript x11 postscript
## =====================================================================
## 1 red green solid "o" "+"
## 2 green blue long dash "+" "x"
## 3 blue red short dash square "*"
## 4 magenta magenta dotted "x" open square
## 5 cyan cyan dot long dash triangle filled square
## 6 brown yellow dot short dash "*" "o"
##
## See also: __pltopt1__
## Author: jwe
## Adapted-By: jwe
## Maintainer: jwe
function fmt = __pltopt__ (caller, opt)
if (! isstr (opt))
usage ("__pltopt__ (caller, opt)");
endif
nr = rows (opt);
fmt = "";
for i = 1:nr
t = __pltopt1__ (caller, deblank (opt(i,:)));
fmt(i,1:length(t)) = t;
endfor
endfunction
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