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# $Id: gp_win32.py,v 2.9 2001/01/07 21:35:14 mhagger Exp $
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# Copyright (C) 1999 Michael Haggerty <mhagger@alum.mit.edu>
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version. This program is distributed in
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# the hope that it will be useful, but WITHOUT ANY WARRANTY; without
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# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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# PARTICULAR PURPOSE. See the GNU General Public License for more
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# details; it is available at <http://www.fsf.org/copyleft/gpl.html>,
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# or by writing to the Free Software Foundation, Inc., 59 Temple Place
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# - Suite 330, Boston, MA 02111-1307, USA.
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"""gp_win32 -- an interface to gnuplot for Windows.
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__cvs_version__ = '$Revision: 2.9 $'
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# ############ Configuration variables: ################################
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"""The configuration options for gnuplot under windows.
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See gp_unix.py for details about the meaning of these options.
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Please let me know if you know better choices for these settings.
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# Command to start up the gnuplot program. Note that on windows
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# the main gnuplot program cannot be used directly because it can
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# not read commands from standard input. See README for more
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gnuplot_command = 'pgnuplot.exe'
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# The '-persist' option is not supported on windows:
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recognizes_persist = 0
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# As far as I know, gnuplot under windows can use binary data:
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recognizes_binary_splot = 1
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# Apparently gnuplot on windows can use inline data, but we use
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# non-inline data (i.e., temporary files) by default for no
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prefer_inline_data = 0
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# The default choice for the 'set term' command (to display on
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default_term = 'windows'
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# According to the gnuplot help manual, the following can be used
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# to print directly to a printer under windows. (Of course it
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# won't help if your printer can't handle postscript!)
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# Used the 'enhanced' option of postscript by default? Set to
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# None (*not* 0!) if your version of gnuplot doesn't support
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# enhanced postscript.
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prefer_enhanced_postscript = 1
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# ############ End of configuration options ############################
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from sys import hexversion
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if hexversion >= 0x02000000:
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# Apparently at least as of Python 2.0b1, popen support for
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# windows is adequate. Give that a try:
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# For earlier versions, you have to have the win32 extensions
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# installed and we use the popen that it provides.
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from win32pipe import popen
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# Mac doesn't recognize persist.
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"""Unsophisticated interface to a running gnuplot program.
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See gp_unix.py for usage information.
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def __init__(self, persist=0):
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"""Start a gnuplot process.
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Create a 'GnuplotProcess' object. This starts a gnuplot
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program and prepares to write commands to it.
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'persist' -- the '-persist' option is not supported under
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Windows so this argument must be zero.
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assert not persist, '-persist is not supported under Windows!'
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self.gnuplot = popen(GnuplotOpts.gnuplot_command, 'w')
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# forward write and flush methods:
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self.write = self.gnuplot.write
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self.flush = self.gnuplot.flush
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def __call__(self, s):
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"""Send a command string to gnuplot, followed by newline."""
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gp_win32.py
