Mercurial > octave
view scripts/plot/util/private/__gnuplot_open_stream__.m @ 26376:00f796120a6d stable
maint: Update copyright dates in all source files.
author | John W. Eaton <jwe@octave.org> |
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date | Wed, 02 Jan 2019 16:32:43 -0500 |
parents | 6652d3823428 |
children | b442ec6dda5c |
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## Copyright (C) 2009-2019 Ben Abbott ## ## 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 3 of the License, 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, see ## <https://www.gnu.org/licenses/>. ## -*- texinfo -*- ## @deftypefn {} {@var{stream} =} __gnuplot_open_stream__ (@var{npipes}, @var{h}) ## Undocumented internal function. ## @end deftypefn ## Author: Ben Abbott <bpabbott@mac.com> ## Created: 2009-04-11 function plot_stream = __gnuplot_open_stream__ (npipes, h) [prog, args] = gnuplot_binary (); if (npipes > 1) [plot_stream(1), plot_stream(2), pid] = popen2 (prog, args{:}); if (pid < 0) error ("__gnuplot_open_stream__: failed to open connection to gnuplot"); else plot_stream(3) = pid; endif else plot_stream = popen (sprintf ("%s ", prog, args{:}), "w"); if (plot_stream < 0) error ("__gnuplot_open_stream__: failed to open connection to gnuplot"); endif endif if (nargin > 1) set (h, "__plot_stream__", plot_stream); endif endfunction