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## Copyright (C) 1998-2003 Joao Cardoso.
##
## This program 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 of the License, or (at your
## option) any later version.
##
## This program 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.
##
## This file is part of plplot_octave.
## st = autostyle "on" | "off" | 1 | 0
##
## if set increases line style after each plot.
## return current status;
## Usefull for B&W plots
function st = autostyle(x)
global __pl
strm = __pl_init;
if (nargin == 1)
if (isstr (x))
if (strcmp ("off", x))
__pl.line_style(strm) = 0;
elseif (strcmp ("on", x))
__pl.line_style(strm) = 1;
else
help autostyle
endif
elseif (is_scalar(x))
if (x == 0)
__pl.line_style(strm) = 0;
elseif (x == 1)
__pl.line_style(strm) = 1;
endif
else
help autostyle
return;
endif
elseif (nargin > 1)
help autostyle
return;
endif
st = __pl.line_style(strm);
if (automatic_replot)
__pl_plotit;
endif
endfunction
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