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#!/usr/bin/env python
import defapp
from subprocess import Popen, PIPE
from optparse import make_option as o
FORMATS = ['png', 'eps', 'pdf', 'show']
STYLES = ['points', 'lines', 'linespoints']
class CommandBuffer(object):
def __init__(self):
self.cmds = []
def __call__(self, cmd):
self.cmds += [cmd]
def __str__(self):
return '\n'.join([str(x) for x in self.cmds])
def gnuplot_cmd(graphs, title=None, ylabel=None, xlabel=None,
format='show', term_opts=None,
style='linespoints', xrange=None,
yrange=None,
xticks=None, yticks=None,
key='below',
logscale=None,
fname=None):
g = CommandBuffer()
if format == 'png':
terminal = 'png'
if term_opts is None:
term_opts = 'size 1024,768 large'
elif format == 'eps':
terminal = 'postscript eps'
if term_opts is None:
term_opts = 'color blacktext solid linewidth 1.0'
elif format == 'pdf':
terminal = 'pdf'
if term_opts is None:
term_opts = 'color enhanced'
if format != 'show':
g('set terminal %s %s' % (terminal, term_opts))
g("set out '/dev/null'")
if xlabel:
g("set xlabel '%s'" % xlabel)
if ylabel:
g("set ylabel '%s'" % ylabel)
if title:
g("set title '%s'" % title)
if xrange:
g("set xrange [%s:%s]" % xrange)
if yrange:
g("set yrange [%s:%s]" % yrange)
if xticks:
g("set xtics %s, %s" % xticks)
if yticks:
g("set ytics %s, %s" % yticks)
if logscale:
if type(logscale) == tuple:
for x in logscale:
g("set logscale %s" % x)
else:
g("set logscale %s" % logscale)
g('set key %s' % key)
plot = []
for gr in graphs:
if type(gr) == str:
# literal plot command
plot.append(gr)
elif len(gr) == 4:
par = (gr[0], gr[1], gr[2], gr[3], style)
plot += ["'%s' using %s:%s title '%s' with %s" % par]
elif len(gr) == 5:
plot += ["'%s' using %s:%s title '%s' with %s" % gr]
elif len(gr) == 3:
plot += ["%s title '%s' with %s" % gr]
if plot:
g('plot ' + ', '.join(plot))
if format != 'show' and fname:
g("set out '%s.%s'" % (fname, format))
if plot:
g('replot')
if format != 'show' and fname:
g('set out')
return g
def pipe2gnuplot(cmds):
proc = Popen(['gnuplot'], stdin=PIPE)
proc.stdin.write(str(cmds))
proc.stdin.close()
proc.wait()
def gnuplot(*args, **kargs):
cmd = gnuplot_cmd(*args, **kargs)
pipe2gnuplot(cmd)
def eps2pdf(file):
Popen(['ps2pdf', '-dEPSCrop', '%s.eps' % file]).wait()
options = [
o('-f', '--format', action='store', dest='format', type='choice',
choices=FORMATS, help='output format'),
o('-o', '--output', action='store', dest='out', help='Output file name.'),
o('-s', '--style', action='store', dest='style', type='choice',
choices=STYLES, help='line style'),
o('-t', '--title', action='store', dest='title'),
o(None, '--xlabel', action='store', dest='xlabel'),
o(None, '--ylabel', action='store', dest='ylabel'),
o(None, '--xrange', action='store', dest='xrange', nargs=2, type='float'),
o(None, '--yrange', action='store', dest='yrange', nargs=2, type='float'),
o(None, '--xticks', action='store', dest='xticks', nargs=2, type='float'),
o(None, '--yticks', action='store', dest='yticks', nargs=2, type='float'),
o(None, '--term-opts', action='store', dest='term_opts'),
]
defaults = {
'out' : 'graph',
'format' : 'show',
'style' : 'linespoints',
'title' : None,
'xlabel' : None,
'ylabel' : None,
'xrange' : None,
'yrange' : None,
'xticks' : None,
'yticks' : None,
'term_opts' : None,
}
class GnuPlotter(defapp.App):
def __init__(self):
defapp.App.__init__(self, options, defaults, no_std_opts=True)
def get_cmd(self, args):
graphs = []
while len(args) >= 4:
g = args[0:4]
graphs += [g]
args = args[4:]
if args:
self.err("Warning: Ignoring trailing args. Args:", *args)
return gnuplot_cmd(graphs,
title=self.options.title,
format=self.options.format,
style=self.options.style,
xlabel=self.options.xlabel,
ylabel=self.options.ylabel,
xrange=self.options.xrange,
yrange=self.options.yrange,
xticks=self.options.xticks,
yticks=self.options.yticks,
fname=self.options.out,
term_opts=self.options.term_opts)
def default(self, _):
cmd = self.get_cmd(list(self.args))
pipe2gnuplot(cmd)
def do_cmd(self, _):
cmd = self.get_cmd(self.args[1:])
self.out(cmd)
if __name__ == "__main__":
GnuPlotter().launch()
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