3 # Copyright 2007 Free Software Foundation, Inc.
5 # This file is part of GNU Radio
7 # GNU Radio is free software; you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation; either version 3, or (at your option)
12 # GNU Radio is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with GNU Radio; see the file COPYING. If not, write to
19 # the Free Software Foundation, Inc., 51 Franklin Street,
20 # Boston, MA 02110-1301, USA.
26 from optparse import OptionParser
31 def __init__(self, xdata, reals, imags, sp_iq, sp_const, plot_const, manager):
33 self.sp_const = sp_const
37 self.plot_const = plot_const
38 self.manager = manager
40 self.xlim = self.sp_iq.get_xlim()
42 def __call__(self, event):
43 newxlim = self.sp_iq.get_xlim()
45 if(newxlim != self.xlim):
47 r = self.reals[int(self.xlim[0]) : int(self.xlim[1])]
48 i = self.imags[int(self.xlim[0]) : int(self.xlim[1])]
50 self.plot_const[0].set_data(r, i)
51 self.sp_const.axis([-2, 2, -2, 2])
52 self.manager.canvas.draw()
55 usage="%prog: [options] output_filename"
56 parser = OptionParser(conflict_handler="resolve", usage=usage)
57 parser.add_option("-s", "--size", type="int", default=None,
58 help="Specify the number of points to plot [default=%default]")
59 parser.add_option("", "--skip", type="int", default=None,
60 help="Specify the number of points to skip [default=%default]")
62 (options, args) = parser.parse_args ()
68 iq = gr_read_binary.read_complex_binary(filename)
70 if(options.skip is None):
73 if((options.size is None) or ((options.skip+options.size) > len(iq[0]))):
74 options.size = len(iq[0]) - options.skip
76 reals = iq[0][options.skip : options.skip + options.size]
77 imags = iq[1][options.skip : options.skip + options.size]
78 x = range(options.skip, options.skip + options.size)
81 f = figure(1, figsize=(16, 12), facecolor='w')
82 rcParams['xtick.labelsize'] = 16
83 rcParams['ytick.labelsize'] = 16
85 # Subplot for real and imaginary parts of signal
86 sp1 = f.add_subplot(2,1,1)
87 sp1.set_title(("I&Q"), fontsize=26, fontweight="bold")
88 sp1.set_xlabel("Time (s)", fontsize=20, fontweight="bold")
89 sp1.set_ylabel("Amplitude (V)", fontsize=20, fontweight="bold")
90 plot(x, reals, 'bo-', x, imags, 'ro-')
92 # Subplot for constellation plot
93 sp2 = f.add_subplot(2,1,2)
94 sp2.set_title(("Constellation"), fontsize=26, fontweight="bold")
95 sp2.set_xlabel("Inphase", fontsize=20, fontweight="bold")
96 sp2.set_ylabel("Qaudrature", fontsize=20, fontweight="bold")
97 p2 = plot(reals, imags, 'bo')
98 sp2.axis([-2, 2, -2, 2])
100 manager = get_current_fig_manager()
101 zm = zoom(x, reals, imags, sp1, sp2, p2, manager)
102 connect('draw_event', zm)
106 if __name__ == "__main__":
109 except KeyboardInterrupt: