From: jcorgan Date: Fri, 1 Feb 2008 16:48:00 +0000 (+0000) Subject: Moved gnuradio-core/src/utils/ plotting scripts into gr-utils, with some rework. X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=6c7ee8932b84fa5dca0c88d7d80f2efe0aa30a06;p=debian%2Fgnuradio Moved gnuradio-core/src/utils/ plotting scripts into gr-utils, with some rework. The gr_plot_data.py class installs into the gnuradio namespace as gnuradio.plot_data, and the remainder of the scripts install into $prefix/bin. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7536 221aa14e-8319-0410-a670-987f0aec2ac5 --- diff --git a/gnuradio-core/src/utils/README b/gnuradio-core/src/utils/README deleted file mode 100644 index 0c4657ba..00000000 --- a/gnuradio-core/src/utils/README +++ /dev/null @@ -1,40 +0,0 @@ -* gr_plot_*.py: -These are a collection of Python scripts to enable viewing and analysis of files produced by GNU Radio flow graphs. Most of them work off complex data produced by digital waveforms. - - -** gr_plot_float.py: -Takes a GNU Radio floating point binary file and displays the samples versus time. You can set the block size to specify how many points to read in at a time and the start position in the file. - -By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples. - - - -** gr_plot_iq.py: -Takes a GNU Radio complex binary file and displays the I&Q data versus time. You can set the block size to specify how many points to read in at a time and the start position in the file. - -By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples. - - - -** gr_plot_const.py: -Takes a GNU Radio complex binary file and displays the I&Q data versus time and the constellation plot (I vs. Q). You can set the block size to specify how many points to read in at a time and the start position in the file. - -By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples. - - - -** gr_plot_fft_c.py: -Takes a GNU Radio complex binary file and displays the I&Q data versus time as well as the frequency domain (FFT) plot. The y-axis values are plotted assuming volts as the amplitude of the I&Q streams and converted into dBm in the frequency domain (the 1/N power adjustment out of the FFT is performed internally). - -The script plots a certain block of data at a time, specified on the command line as -B or --block. This value defaults to 1000. The start position in the file can be set by specifying -s or --start and defaults to 0 (the start of the file). - -By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time and frequency axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples. - - - -** gr_plot_fft_f.py: -Takes a GNU Radio floating point binary file and displays the samples versus time as well as the frequency domain (FFT) plot. The y-axis values are plotted assuming volts as the amplitude of the I&Q streams and converted into dBm in the frequency domain (the 1/N power adjustment out of the FFT is performed internally). - -The script plots a certain block of data at a time, specified on the command line as -B or --block. This value defaults to 1000. The start position in the file can be set by specifying -s or --start and defaults to 0 (the start of the file). - -By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time and frequency axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples. diff --git a/gnuradio-core/src/utils/gr_plot_char.py b/gnuradio-core/src/utils/gr_plot_char.py deleted file mode 100755 index 71ff4499..00000000 --- a/gnuradio-core/src/utils/gr_plot_char.py +++ /dev/null @@ -1,58 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2007,2008 Free Software Foundation, Inc. -# -# This file is part of GNU Radio -# -# GNU Radio 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, or (at your option) -# any later version. -# -# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to -# the Free Software Foundation, Inc., 51 Franklin Street, -# Boston, MA 02110-1301, USA. -# - -try: - import scipy -except ImportError: - print "Please install SciPy to run this script (http://www.scipy.org/)" - raise SystemExit, 1 - -from optparse import OptionParser -from gr_plot_data import plot_data - -def main(): - usage="%prog: [options] input_filenames" - description = "Takes a GNU Radio byte/char binary file and displays the samples versus time. You can set the block size to specify how many points to read in at a time and the start position in the file. By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples." - - parser = OptionParser(conflict_handler="resolve", usage=usage, description=description) - parser.add_option("-B", "--block", type="int", default=1000, - help="Specify the block size [default=%default]") - parser.add_option("-s", "--start", type="int", default=0, - help="Specify where to start in the file [default=%default]") - parser.add_option("-R", "--sample-rate", type="float", default=1.0, - help="Set the sampler rate of the data [default=%default]") - - (options, args) = parser.parse_args () - if len(args) < 1: - parser.print_help() - raise SystemExit, 1 - filenames = args - - datatype=scipy.int8 - dc = plot_data(datatype, filenames, options) - -if __name__ == "__main__": - try: - main() - except KeyboardInterrupt: - pass - diff --git a/gnuradio-core/src/utils/gr_plot_const.py b/gnuradio-core/src/utils/gr_plot_const.py deleted file mode 100755 index 1503363b..00000000 --- a/gnuradio-core/src/utils/gr_plot_const.py +++ /dev/null @@ -1,209 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2007,2008 Free Software Foundation, Inc. -# -# This file is part of GNU Radio -# -# GNU Radio 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, or (at your option) -# any later version. -# -# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to -# the Free Software Foundation, Inc., 51 Franklin Street, -# Boston, MA 02110-1301, USA. -# - -try: - import scipy -except ImportError: - print "Please install SciPy to run this script (http://www.scipy.org/)" - raise SystemExit, 1 - -try: - from pylab import * - from matplotlib.font_manager import fontManager, FontProperties -except ImportError: - print "Please install Matplotlib to run this script (http://matplotlib.sourceforge.net/)" - raise SystemExit, 1 - -from optparse import OptionParser - -matplotlib.interactive(True) -matplotlib.use('TkAgg') - -class draw_constellation: - def __init__(self, filename, options): - self.hfile = open(filename, "r") - self.block_length = options.block - self.start = options.start - self.sample_rate = options.sample_rate - - self.datatype = scipy.complex64 - self.sizeof_data = self.datatype().nbytes # number of bytes per sample in file - - self.axis_font_size = 16 - self.label_font_size = 18 - self.title_font_size = 20 - - # Setup PLOT - self.fig = figure(1, figsize=(16, 9), facecolor='w') - rcParams['xtick.labelsize'] = self.axis_font_size - rcParams['ytick.labelsize'] = self.axis_font_size - - self.text_file = figtext(0.10, 0.95, ("File: %s" % filename), weight="heavy", size=16) - self.text_file_pos = figtext(0.10, 0.90, "File Position: ", weight="heavy", size=16) - self.text_block = figtext(0.40, 0.90, ("Block Size: %d" % self.block_length), - weight="heavy", size=16) - self.text_sr = figtext(0.60, 0.90, ("Sample Rate: %.2f" % self.sample_rate), - weight="heavy", size=16) - self.make_plots() - - self.button_left_axes = self.fig.add_axes([0.45, 0.01, 0.05, 0.05], frameon=True) - self.button_left = Button(self.button_left_axes, "<") - self.button_left_callback = self.button_left.on_clicked(self.button_left_click) - - self.button_right_axes = self.fig.add_axes([0.50, 0.01, 0.05, 0.05], frameon=True) - self.button_right = Button(self.button_right_axes, ">") - self.button_right_callback = self.button_right.on_clicked(self.button_right_click) - - self.xlim = self.sp_iq.get_xlim() - - self.manager = get_current_fig_manager() - connect('draw_event', self.zoom) - connect('key_press_event', self.click) - show() - - def get_data(self): - self.text_file_pos.set_text("File Position: %d" % (self.hfile.tell()//self.sizeof_data)) - iq = scipy.fromfile(self.hfile, dtype=self.datatype, count=self.block_length) - #print "Read in %d items" % len(iq) - if(len(iq) == 0): - print "End of File" - else: - self.reals = [r.real for r in iq] - self.imags = [i.imag for i in iq] - - self.time = [i*(1/self.sample_rate) for i in range(len(self.reals))] - - def make_plots(self): - # if specified on the command-line, set file pointer - self.hfile.seek(self.sizeof_data*self.start, 1) - - self.get_data() - - # Subplot for real and imaginary parts of signal - self.sp_iq = self.fig.add_subplot(2,1,1, position=[0.075, 0.2, 0.4, 0.6]) - self.sp_iq.set_title(("I&Q"), fontsize=self.title_font_size, fontweight="bold") - self.sp_iq.set_xlabel("Time (s)", fontsize=self.label_font_size, fontweight="bold") - self.sp_iq.set_ylabel("Amplitude (V)", fontsize=self.label_font_size, fontweight="bold") - self.plot_iq = plot(self.time, self.reals, 'bo-', self.time, self.imags, 'ro-') - self.sp_iq.axis([min(self.time), max(self.time), - 1.5*min([min(self.reals), min(self.imags)]), - 1.5*max([max(self.reals), max(self.imags)])]) - - # Subplot for constellation plot - self.sp_const = self.fig.add_subplot(2,2,1, position=[0.575, 0.2, 0.4, 0.6]) - self.sp_const.set_title(("Constellation"), fontsize=self.title_font_size, fontweight="bold") - self.sp_const.set_xlabel("Inphase", fontsize=self.label_font_size, fontweight="bold") - self.sp_const.set_ylabel("Qaudrature", fontsize=self.label_font_size, fontweight="bold") - self.plot_const = plot(self.reals, self.imags, 'bo') - self.sp_const.axis([-2, 2, -2, 2]) - - draw() - - def update_plots(self): - self.plot_iq[0].set_data([self.time, self.reals]) - self.plot_iq[1].set_data([self.time, self.imags]) - self.sp_iq.axis([min(self.time), max(self.time), - 1.5*min([min(self.reals), min(self.imags)]), - 1.5*max([max(self.reals), max(self.imags)])]) - - self.plot_const[0].set_data([self.reals, self.imags]) - self.sp_const.axis([-2, 2, -2, 2]) - draw() - - def zoom(self, event): - newxlim = self.sp_iq.get_xlim() - if(newxlim != self.xlim): - self.xlim = newxlim - r = self.reals[int(ceil(self.xlim[0])) : int(ceil(self.xlim[1]))] - i = self.imags[int(ceil(self.xlim[0])) : int(ceil(self.xlim[1]))] - - self.plot_const[0].set_data(r, i) - self.sp_const.axis([-2, 2, -2, 2]) - self.manager.canvas.draw() - draw() - - def click(self, event): - forward_valid_keys = [" ", "down", "right"] - backward_valid_keys = ["up", "left"] - - if(find(event.key, forward_valid_keys)): - self.step_forward() - - elif(find(event.key, backward_valid_keys)): - self.step_backward() - - def button_left_click(self, event): - self.step_backward() - - def button_right_click(self, event): - self.step_forward() - - def step_forward(self): - self.get_data() - self.update_plots() - - def step_backward(self): - # Step back in file position - if(self.hfile.tell() >= 2*self.sizeof_data*self.block_length ): - self.hfile.seek(-2*self.sizeof_data*self.block_length, 1) - else: - self.hfile.seek(-self.hfile.tell(),1) - self.get_data() - self.update_plots() - - - -#FIXME: there must be a way to do this with a Python builtin -def find(item_in, list_search): - for l in list_search: - if item_in == l: - return True - return False - -def main(): - usage="%prog: [options] input_filename" - description = "Takes a GNU Radio complex binary file and displays the I&Q data versus time and the constellation plot (I vs. Q). You can set the block size to specify how many points to read in at a time and the start position in the file. By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples." - - parser = OptionParser(conflict_handler="resolve", usage=usage, description=description) - parser.add_option("-B", "--block", type="int", default=1000, - help="Specify the block size [default=%default]") - parser.add_option("-s", "--start", type="int", default=0, - help="Specify where to start in the file [default=%default]") - parser.add_option("-R", "--sample-rate", type="float", default=1.0, - help="Set the sampler rate of the data [default=%default]") - - (options, args) = parser.parse_args () - if len(args) != 1: - parser.print_help() - raise SystemExit, 1 - filename = args[0] - - dc = draw_constellation(filename, options) - -if __name__ == "__main__": - try: - main() - except KeyboardInterrupt: - pass - - - diff --git a/gnuradio-core/src/utils/gr_plot_data.py b/gnuradio-core/src/utils/gr_plot_data.py deleted file mode 100755 index abc210c0..00000000 --- a/gnuradio-core/src/utils/gr_plot_data.py +++ /dev/null @@ -1,199 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2007,2008 Free Software Foundation, Inc. -# -# This file is part of GNU Radio -# -# GNU Radio 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, or (at your option) -# any later version. -# -# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to -# the Free Software Foundation, Inc., 51 Franklin Street, -# Boston, MA 02110-1301, USA. -# - -try: - import scipy -except ImportError: - print "Please install SciPy to run this script (http://www.scipy.org/)" - raise SystemExit, 1 - -try: - from pylab import * -except ImportError: - print "Please install Matplotlib to run this script (http://matplotlib.sourceforge.net/)" - raise SystemExit, 1 - -from optparse import OptionParser - -matplotlib.interactive(True) -matplotlib.use('TkAgg') - -class plot_data: - def __init__(self, datatype, filenames, options): - self.hfile = list() - self.legend_text = list() - for f in filenames: - self.hfile.append(open(f, "r")) - self.legend_text.append(f) - - self.block_length = options.block - self.start = options.start - self.sample_rate = options.sample_rate - - self.datatype = datatype - self.sizeof_data = datatype().nbytes # number of bytes per sample in file - - self.axis_font_size = 16 - self.label_font_size = 18 - self.title_font_size = 20 - self.text_size = 22 - - # Setup PLOT - self.fig = figure(1, figsize=(16, 9), facecolor='w') - rcParams['xtick.labelsize'] = self.axis_font_size - rcParams['ytick.labelsize'] = self.axis_font_size - - self.text_file_pos = figtext(0.10, 0.88, "File Position: ", weight="heavy", size=self.text_size) - self.text_block = figtext(0.40, 0.88, ("Block Size: %d" % self.block_length), - weight="heavy", size=self.text_size) - self.text_sr = figtext(0.60, 0.88, ("Sample Rate: %.2f" % self.sample_rate), - weight="heavy", size=self.text_size) - self.make_plots() - - self.button_left_axes = self.fig.add_axes([0.45, 0.01, 0.05, 0.05], frameon=True) - self.button_left = Button(self.button_left_axes, "<") - self.button_left_callback = self.button_left.on_clicked(self.button_left_click) - - self.button_right_axes = self.fig.add_axes([0.50, 0.01, 0.05, 0.05], frameon=True) - self.button_right = Button(self.button_right_axes, ">") - self.button_right_callback = self.button_right.on_clicked(self.button_right_click) - - self.xlim = self.sp_f.get_xlim() - - self.manager = get_current_fig_manager() - connect('key_press_event', self.click) - show() - - def get_data(self, hfile): - self.text_file_pos.set_text("File Position: %d" % (hfile.tell()//self.sizeof_data)) - f = scipy.fromfile(hfile, dtype=self.datatype, count=self.block_length) - #print "Read in %d items" % len(self.f) - if(len(f) == 0): - print "End of File" - else: - self.f = f - self.time = [i*(1/self.sample_rate) for i in range(len(self.f))] - - def make_plots(self): - self.sp_f = self.fig.add_subplot(2,1,1, position=[0.075, 0.2, 0.875, 0.6]) - self.sp_f.set_title(("Amplitude"), fontsize=self.title_font_size, fontweight="bold") - self.sp_f.set_xlabel("Time (s)", fontsize=self.label_font_size, fontweight="bold") - self.sp_f.set_ylabel("Amplitude (V)", fontsize=self.label_font_size, fontweight="bold") - self.plot_f = list() - - maxval = -1e12 - minval = 1e12 - - for hf in self.hfile: - # if specified on the command-line, set file pointer - hf.seek(self.sizeof_data*self.start, 1) - - self.get_data(hf) - - # Subplot for real and imaginary parts of signal - self.plot_f += plot(self.time, self.f, 'o-') - maxval = max(maxval, max(self.f)) - minval = min(minval, min(self.f)) - - self.sp_f.set_ylim([1.5*minval, 1.5*maxval]) - - self.leg = self.sp_f.legend(self.plot_f, self.legend_text) - - draw() - - def update_plots(self): - maxval = -1e12 - minval = 1e12 - for hf,p in zip(self.hfile,self.plot_f): - self.get_data(hf) - p.set_data([self.time, self.f]) - maxval = max(maxval, max(self.f)) - minval = min(minval, min(self.f)) - - self.sp_f.set_ylim([1.5*minval, 1.5*maxval]) - - draw() - - def click(self, event): - forward_valid_keys = [" ", "down", "right"] - backward_valid_keys = ["up", "left"] - - if(find(event.key, forward_valid_keys)): - self.step_forward() - - elif(find(event.key, backward_valid_keys)): - self.step_backward() - - def button_left_click(self, event): - self.step_backward() - - def button_right_click(self, event): - self.step_forward() - - def step_forward(self): - self.update_plots() - - def step_backward(self): - for hf in self.hfile: - # Step back in file position - if(hf.tell() >= 2*self.sizeof_data*self.block_length ): - hf.seek(-2*self.sizeof_data*self.block_length, 1) - else: - hf.seek(-hf.tell(),1) - self.update_plots() - - - -#FIXME: there must be a way to do this with a Python builtin -def find(item_in, list_search): - for l in list_search: - if item_in == l: - return True - return False - -def main(): - usage="%prog: [options] input_filenames" - description = "This is just a test program for this class. It should really be called by gr_plot_.py for a specific type of file data (float, int, byte, etc.)." - - parser = OptionParser(conflict_handler="resolve", usage=usage, description=description) - parser.add_option("-B", "--block", type="int", default=1000, - help="Specify the block size [default=%default]") - parser.add_option("-s", "--start", type="int", default=0, - help="Specify where to start in the file [default=%default]") - parser.add_option("-R", "--sample-rate", type="float", default=1.0, - help="Set the sampler rate of the data [default=%default]") - - (options, args) = parser.parse_args () - if len(args) < 1: - parser.print_help() - raise SystemExit, 1 - filenames = args - - datatype=scipy.float32 - dc = plot_data(datatype, filenames, options) - -if __name__ == "__main__": - try: - main() - except KeyboardInterrupt: - pass - diff --git a/gnuradio-core/src/utils/gr_plot_fft_c.py b/gnuradio-core/src/utils/gr_plot_fft_c.py deleted file mode 100755 index 70284040..00000000 --- a/gnuradio-core/src/utils/gr_plot_fft_c.py +++ /dev/null @@ -1,234 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2007,2008 Free Software Foundation, Inc. -# -# This file is part of GNU Radio -# -# GNU Radio 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, or (at your option) -# any later version. -# -# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to -# the Free Software Foundation, Inc., 51 Franklin Street, -# Boston, MA 02110-1301, USA. -# - -try: - import scipy - from scipy import fftpack -except ImportError: - print "Please install SciPy to run this script (http://www.scipy.org/)" - raise SystemExit, 1 - -try: - from pylab import * -except ImportError: - print "Please install Matplotlib to run this script (http://matplotlib.sourceforge.net/)" - raise SystemExit, 1 - -from optparse import OptionParser -from math import log10 - -matplotlib.interactive(True) -matplotlib.use('TkAgg') - -class draw_fft_c: - def __init__(self, filename, options): - self.hfile = open(filename, "r") - self.block_length = options.block - self.start = options.start - self.sample_rate = options.sample_rate - - self.datatype = scipy.complex64 - self.sizeof_data = self.datatype().nbytes # number of bytes per sample in file - - self.axis_font_size = 16 - self.label_font_size = 18 - self.title_font_size = 20 - self.text_size = 22 - - # Setup PLOT - self.fig = figure(1, figsize=(16, 9), facecolor='w') - rcParams['xtick.labelsize'] = self.axis_font_size - rcParams['ytick.labelsize'] = self.axis_font_size - - self.text_file = figtext(0.10, 0.94, ("File: %s" % filename), weight="heavy", size=self.text_size) - self.text_file_pos = figtext(0.10, 0.88, "File Position: ", weight="heavy", size=self.text_size) - self.text_block = figtext(0.40, 0.88, ("Block Size: %d" % self.block_length), - weight="heavy", size=self.text_size) - self.text_sr = figtext(0.60, 0.88, ("Sample Rate: %.2f" % self.sample_rate), - weight="heavy", size=self.text_size) - self.make_plots() - - self.button_left_axes = self.fig.add_axes([0.45, 0.01, 0.05, 0.05], frameon=True) - self.button_left = Button(self.button_left_axes, "<") - self.button_left_callback = self.button_left.on_clicked(self.button_left_click) - - self.button_right_axes = self.fig.add_axes([0.50, 0.01, 0.05, 0.05], frameon=True) - self.button_right = Button(self.button_right_axes, ">") - self.button_right_callback = self.button_right.on_clicked(self.button_right_click) - - self.xlim = self.sp_iq.get_xlim() - - self.manager = get_current_fig_manager() - connect('draw_event', self.zoom) - connect('key_press_event', self.click) - show() - - def get_data(self): - self.text_file_pos.set_text("File Position: %d" % (self.hfile.tell()//self.sizeof_data)) - self.iq = scipy.fromfile(self.hfile, dtype=self.datatype, count=self.block_length) - #print "Read in %d items" % len(self.iq) - if(len(self.iq) == 0): - print "End of File" - else: - self.reals = [r.real for r in self.iq] - self.imags = [i.imag for i in self.iq] - - self.iq_fft = self.dofft(self.iq) - - self.time = [i*(1/self.sample_rate) for i in range(len(self.reals))] - self.freq = self.calc_freq(self.time, self.sample_rate) - - - def dofft(self, iq): - N = len(iq) - iq_fft = fftpack.fftshift(scipy.fft(iq)) # fft and shift axis - iq_fft = [20*log10(abs(i/N)) for i in iq_fft] # convert to decibels, adjust power - return iq_fft - - def calc_freq(self, time, sample_rate): - N = len(time) - Fs = 1.0 / (max(time) - min(time)) - Fn = 0.5 * sample_rate - freq = [-Fn + i*Fs for i in range(N)] - return freq - - def make_plots(self): - # if specified on the command-line, set file pointer - self.hfile.seek(self.sizeof_data*self.start, 1) - - self.get_data() - - # Subplot for real and imaginary parts of signal - self.sp_iq = self.fig.add_subplot(2,1,1, position=[0.075, 0.2, 0.4, 0.6]) - self.sp_iq.set_title(("I&Q"), fontsize=self.title_font_size, fontweight="bold") - self.sp_iq.set_xlabel("Time (s)", fontsize=self.label_font_size, fontweight="bold") - self.sp_iq.set_ylabel("Amplitude (V)", fontsize=self.label_font_size, fontweight="bold") - self.plot_iq = plot(self.time, self.reals, 'bo-', self.time, self.imags, 'ro-') - self.sp_iq.set_ylim([1.5*min([min(self.reals), min(self.imags)]), - 1.5*max([max(self.reals), max(self.imags)])]) - - # Subplot for constellation plot - self.sp_fft = self.fig.add_subplot(2,2,1, position=[0.575, 0.2, 0.4, 0.6]) - self.sp_fft.set_title(("FFT"), fontsize=self.title_font_size, fontweight="bold") - self.sp_fft.set_xlabel("Frequency (Hz)", fontsize=self.label_font_size, fontweight="bold") - self.sp_fft.set_ylabel("Power (dBm)", fontsize=self.label_font_size, fontweight="bold") - self.plot_fft = plot(self.freq, self.iq_fft, '-bo') - self.sp_fft.set_ylim([min(self.iq_fft)-10, max(self.iq_fft)+10]) - - draw() - - def update_plots(self): - self.plot_iq[0].set_data([self.time, self.reals]) - self.plot_iq[1].set_data([self.time, self.imags]) - self.sp_iq.set_ylim([1.5*min([min(self.reals), min(self.imags)]), - 1.5*max([max(self.reals), max(self.imags)])]) - - self.plot_fft[0].set_data([self.freq, self.iq_fft]) - self.sp_fft.set_ylim([min(self.iq_fft)-10, max(self.iq_fft)+10]) - - draw() - - def zoom(self, event): - newxlim = self.sp_iq.get_xlim() - if(newxlim != self.xlim): - self.xlim = newxlim - xmin = max(0, int(ceil(self.sample_rate*self.xlim[0]))) - xmax = min(int(ceil(self.sample_rate*self.xlim[1])), len(self.iq)) - - iq = self.iq[xmin : xmax] - time = self.time[xmin : xmax] - - iq_fft = self.dofft(iq) - freq = self.calc_freq(time, self.sample_rate) - - self.plot_fft[0].set_data(freq, iq_fft) - self.sp_fft.axis([min(freq), max(freq), - min(iq_fft)-10, max(iq_fft)+10]) - - draw() - - def click(self, event): - forward_valid_keys = [" ", "down", "right"] - backward_valid_keys = ["up", "left"] - - if(find(event.key, forward_valid_keys)): - self.step_forward() - - elif(find(event.key, backward_valid_keys)): - self.step_backward() - - def button_left_click(self, event): - self.step_backward() - - def button_right_click(self, event): - self.step_forward() - - def step_forward(self): - self.get_data() - self.update_plots() - - def step_backward(self): - # Step back in file position - if(self.hfile.tell() >= 2*self.sizeof_data*self.block_length ): - self.hfile.seek(-2*self.sizeof_data*self.block_length, 1) - else: - self.hfile.seek(-self.hfile.tell(),1) - self.get_data() - self.update_plots() - - - -#FIXME: there must be a way to do this with a Python builtin -def find(item_in, list_search): - for l in list_search: - if item_in == l: - return True - return False - -def main(): - usage="%prog: [options] input_filename" - description = "Takes a GNU Radio complex binary file and displays the I&Q data versus time as well as the frequency domain (FFT) plot. The y-axis values are plotted assuming volts as the amplitude of the I&Q streams and converted into dBm in the frequency domain (the 1/N power adjustment out of the FFT is performed internally). The script plots a certain block of data at a time, specified on the command line as -B or --block. This value defaults to 1000. The start position in the file can be set by specifying -s or --start and defaults to 0 (the start of the file). By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time and frequency axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples." - - parser = OptionParser(conflict_handler="resolve", usage=usage, description=description) - parser.add_option("-B", "--block", type="int", default=1000, - help="Specify the block size [default=%default]") - parser.add_option("-s", "--start", type="int", default=0, - help="Specify where to start in the file [default=%default]") - parser.add_option("-R", "--sample-rate", type="float", default=1.0, - help="Set the sampler rate of the data [default=%default]") - - (options, args) = parser.parse_args () - if len(args) != 1: - parser.print_help() - raise SystemExit, 1 - filename = args[0] - - dc = draw_fft_c(filename, options) - -if __name__ == "__main__": - try: - main() - except KeyboardInterrupt: - pass - - - diff --git a/gnuradio-core/src/utils/gr_plot_fft_f.py b/gnuradio-core/src/utils/gr_plot_fft_f.py deleted file mode 100755 index bb165291..00000000 --- a/gnuradio-core/src/utils/gr_plot_fft_f.py +++ /dev/null @@ -1,236 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2007,2008 Free Software Foundation, Inc. -# -# This file is part of GNU Radio -# -# GNU Radio 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, or (at your option) -# any later version. -# -# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to -# the Free Software Foundation, Inc., 51 Franklin Street, -# Boston, MA 02110-1301, USA. -# - -try: - import scipy - from scipy import fftpack -except ImportError: - print "Please install SciPy to run this script (http://www.scipy.org/)" - raise SystemExit, 1 - -try: - from pylab import * -except ImportError: - print "Please install Matplotlib to run this script (http://matplotlib.sourceforge.net/)" - raise SystemExit, 1 - -from optparse import OptionParser -from math import log10 - -matplotlib.interactive(True) -matplotlib.use('TkAgg') - -class draw_fft_f: - def __init__(self, filename, options): - self.hfile = open(filename, "r") - self.block_length = options.block - self.start = options.start - self.sample_rate = options.sample_rate - - self.datatype = scipy.float32 - self.sizeof_data = self.datatype().nbytes # number of bytes per sample in file - - self.axis_font_size = 16 - self.label_font_size = 18 - self.title_font_size = 20 - self.text_size = 22 - - # Setup PLOT - self.fig = figure(1, figsize=(16, 9), facecolor='w') - rcParams['xtick.labelsize'] = self.axis_font_size - rcParams['ytick.labelsize'] = self.axis_font_size - - self.text_file = figtext(0.10, 0.94, ("File: %s" % filename), weight="heavy", size=self.text_size) - self.text_file_pos = figtext(0.10, 0.88, "File Position: ", weight="heavy", size=self.text_size) - self.text_block = figtext(0.40, 0.88, ("Block Size: %d" % self.block_length), - weight="heavy", size=self.text_size) - self.text_sr = figtext(0.60, 0.88, ("Sample Rate: %.2f" % self.sample_rate), - weight="heavy", size=self.text_size) - self.make_plots() - - self.button_left_axes = self.fig.add_axes([0.45, 0.01, 0.05, 0.05], frameon=True) - self.button_left = Button(self.button_left_axes, "<") - self.button_left_callback = self.button_left.on_clicked(self.button_left_click) - - self.button_right_axes = self.fig.add_axes([0.50, 0.01, 0.05, 0.05], frameon=True) - self.button_right = Button(self.button_right_axes, ">") - self.button_right_callback = self.button_right.on_clicked(self.button_right_click) - - self.xlim = self.sp_f.get_xlim() - - self.manager = get_current_fig_manager() - connect('draw_event', self.zoom) - connect('key_press_event', self.click) - show() - - def get_data(self): - self.text_file_pos.set_text("File Position: %d" % (self.hfile.tell()//self.sizeof_data)) - self.floats = scipy.fromfile(self.hfile, dtype=self.datatype, count=self.block_length) - #print "Read in %d items" % len(self.floats) - if(len(self.floats) == 0): - print "End of File" - else: - self.f_fft = self.dofft(self.floats) - - self.time = [i*(1/self.sample_rate) for i in range(len(self.floats))] - self.freq = self.calc_freq(self.time, self.sample_rate) - - def dofft(self, f): - N = len(f) - f_fft = fftpack.fftshift(scipy.fft(f)) # fft and shift axis - f_dB = list() - for f in f_fft: - try: - f_dB.append(20*log10(abs(f/N))) # convert to decibels, adjust power - except OverflowError: # protect against taking log(0) - f = 1e-14 # not sure if this is the best way to do this - f_dB.append(20*log10(abs(f/N))) - - return f_dB - - def calc_freq(self, time, sample_rate): - N = len(time) - Fs = 1.0 / (max(time) - min(time)) - Fn = 0.5 * sample_rate - freq = [-Fn + i*Fs for i in range(N)] - return freq - - def make_plots(self): - # if specified on the command-line, set file pointer - self.hfile.seek(self.sizeof_data*self.start, 1) - - self.get_data() - - # Subplot for real and imaginary parts of signal - self.sp_f = self.fig.add_subplot(2,1,1, position=[0.075, 0.2, 0.4, 0.6]) - self.sp_f.set_title(("Amplitude"), fontsize=self.title_font_size, fontweight="bold") - self.sp_f.set_xlabel("Time (s)", fontsize=self.label_font_size, fontweight="bold") - self.sp_f.set_ylabel("Amplitude (V)", fontsize=self.label_font_size, fontweight="bold") - self.plot_f = plot(self.time, self.floats, 'bo-') - self.sp_f.set_ylim([1.5*min(self.floats), - 1.5*max(self.floats)]) - - # Subplot for constellation plot - self.sp_fft = self.fig.add_subplot(2,2,1, position=[0.575, 0.2, 0.4, 0.6]) - self.sp_fft.set_title(("FFT"), fontsize=self.title_font_size, fontweight="bold") - self.sp_fft.set_xlabel("Frequency (Hz)", fontsize=self.label_font_size, fontweight="bold") - self.sp_fft.set_ylabel("Power (dBm)", fontsize=self.label_font_size, fontweight="bold") - self.plot_fft = plot(self.freq, self.f_fft, '-bo') - self.sp_fft.set_ylim([min(self.f_fft)-10, max(self.f_fft)+10]) - - draw() - - def update_plots(self): - self.plot_f[0].set_data([self.time, self.floats]) - self.sp_f.set_ylim([1.5*min(self.floats), - 1.5*max(self.floats)]) - - self.plot_fft[0].set_data([self.freq, self.f_fft]) - self.sp_fft.set_ylim([min(self.f_fft)-10, max(self.f_fft)+10]) - - draw() - - def zoom(self, event): - newxlim = self.sp_f.get_xlim() - if(newxlim != self.xlim): - self.xlim = newxlim - xmin = max(0, int(ceil(self.sample_rate*self.xlim[0]))) - xmax = min(int(ceil(self.sample_rate*self.xlim[1])), len(self.floats)) - - f = self.floats[xmin : xmax] - time = self.time[xmin : xmax] - - f_fft = self.dofft(f) - freq = self.calc_freq(time, self.sample_rate) - - self.plot_fft[0].set_data(freq, f_fft) - self.sp_fft.axis([min(freq), max(freq), - min(f_fft)-10, max(f_fft)+10]) - - draw() - - def click(self, event): - forward_valid_keys = [" ", "down", "right"] - backward_valid_keys = ["up", "left"] - - if(find(event.key, forward_valid_keys)): - self.step_forward() - - elif(find(event.key, backward_valid_keys)): - self.step_backward() - - def button_left_click(self, event): - self.step_backward() - - def button_right_click(self, event): - self.step_forward() - - def step_forward(self): - self.get_data() - self.update_plots() - - def step_backward(self): - # Step back in file position - if(self.hfile.tell() >= 2*self.sizeof_data*self.block_length ): - self.hfile.seek(-2*self.sizeof_data*self.block_length, 1) - else: - self.hfile.seek(-self.hfile.tell(),1) - self.get_data() - self.update_plots() - - - -#FIXME: there must be a way to do this with a Python builtin -def find(item_in, list_search): - for l in list_search: - if item_in == l: - return True - return False - -def main(): - usage="%prog: [options] input_filename" - description = "Takes a GNU Radio floating point binary file and displays the sample data versus time as well as the frequency domain (FFT) plot. The y-axis values are plotted assuming volts as the amplitude of the I&Q streams and converted into dBm in the frequency domain (the 1/N power adjustment out of the FFT is performed internally). The script plots a certain block of data at a time, specified on the command line as -B or --block. This value defaults to 1000. The start position in the file can be set by specifying -s or --start and defaults to 0 (the start of the file). By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time and frequency axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples." - - parser = OptionParser(conflict_handler="resolve", usage=usage, description=description) - parser.add_option("-B", "--block", type="int", default=1000, - help="Specify the block size [default=%default]") - parser.add_option("-s", "--start", type="int", default=0, - help="Specify where to start in the file [default=%default]") - parser.add_option("-R", "--sample-rate", type="float", default=1.0, - help="Set the sampler rate of the data [default=%default]") - - (options, args) = parser.parse_args () - if len(args) != 1: - parser.print_help() - raise SystemExit, 1 - filename = args[0] - - dc = draw_fft_f(filename, options) - -if __name__ == "__main__": - try: - main() - except KeyboardInterrupt: - pass - - - diff --git a/gnuradio-core/src/utils/gr_plot_float.py b/gnuradio-core/src/utils/gr_plot_float.py deleted file mode 100755 index 248a84b8..00000000 --- a/gnuradio-core/src/utils/gr_plot_float.py +++ /dev/null @@ -1,58 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2007,2008 Free Software Foundation, Inc. -# -# This file is part of GNU Radio -# -# GNU Radio 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, or (at your option) -# any later version. -# -# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to -# the Free Software Foundation, Inc., 51 Franklin Street, -# Boston, MA 02110-1301, USA. -# - -try: - import scipy -except ImportError: - print "Please install SciPy to run this script (http://www.scipy.org/)" - raise SystemExit, 1 - -from optparse import OptionParser -from gr_plot_data import plot_data - -def main(): - usage="%prog: [options] input_filenames" - description = "Takes a GNU Radio floating point binary file and displays the samples versus time. You can set the block size to specify how many points to read in at a time and the start position in the file. By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples." - - parser = OptionParser(conflict_handler="resolve", usage=usage, description=description) - parser.add_option("-B", "--block", type="int", default=1000, - help="Specify the block size [default=%default]") - parser.add_option("-s", "--start", type="int", default=0, - help="Specify where to start in the file [default=%default]") - parser.add_option("-R", "--sample-rate", type="float", default=1.0, - help="Set the sampler rate of the data [default=%default]") - - (options, args) = parser.parse_args () - if len(args) < 1: - parser.print_help() - raise SystemExit, 1 - filenames = args - - datatype=scipy.float32 - dc = plot_data(datatype, filenames, options) - -if __name__ == "__main__": - try: - main() - except KeyboardInterrupt: - pass - diff --git a/gnuradio-core/src/utils/gr_plot_int.py b/gnuradio-core/src/utils/gr_plot_int.py deleted file mode 100755 index 86ecbce7..00000000 --- a/gnuradio-core/src/utils/gr_plot_int.py +++ /dev/null @@ -1,58 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2007,2008 Free Software Foundation, Inc. -# -# This file is part of GNU Radio -# -# GNU Radio 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, or (at your option) -# any later version. -# -# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to -# the Free Software Foundation, Inc., 51 Franklin Street, -# Boston, MA 02110-1301, USA. -# - -try: - import scipy -except ImportError: - print "Please install SciPy to run this script (http://www.scipy.org/)" - raise SystemExit, 1 - -from optparse import OptionParser -from gr_plot_data import plot_data - -def main(): - usage="%prog: [options] input_filenames" - description = "Takes a GNU Radio integer binary file and displays the samples versus time. You can set the block size to specify how many points to read in at a time and the start position in the file. By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples." - - parser = OptionParser(conflict_handler="resolve", usage=usage, description=description) - parser.add_option("-B", "--block", type="int", default=1000, - help="Specify the block size [default=%default]") - parser.add_option("-s", "--start", type="int", default=0, - help="Specify where to start in the file [default=%default]") - parser.add_option("-R", "--sample-rate", type="float", default=1.0, - help="Set the sampler rate of the data [default=%default]") - - (options, args) = parser.parse_args () - if len(args) < 1: - parser.print_help() - raise SystemExit, 1 - filenames = args - - datatype=scipy.int32 - dc = plot_data(datatype, filenames, options) - -if __name__ == "__main__": - try: - main() - except KeyboardInterrupt: - pass - diff --git a/gnuradio-core/src/utils/gr_plot_iq.py b/gnuradio-core/src/utils/gr_plot_iq.py deleted file mode 100755 index f1f1c105..00000000 --- a/gnuradio-core/src/utils/gr_plot_iq.py +++ /dev/null @@ -1,182 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2007,2008 Free Software Foundation, Inc. -# -# This file is part of GNU Radio -# -# GNU Radio 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, or (at your option) -# any later version. -# -# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to -# the Free Software Foundation, Inc., 51 Franklin Street, -# Boston, MA 02110-1301, USA. -# - -try: - import scipy -except ImportError: - print "Please install SciPy to run this script (http://www.scipy.org/)" - raise SystemExit, 1 - -try: - from pylab import * -except ImportError: - print "Please install Matplotlib to run this script (http://matplotlib.sourceforge.net/)" - raise SystemExit, 1 - -from optparse import OptionParser - -matplotlib.interactive(True) -matplotlib.use('TkAgg') - -class draw_fft: - def __init__(self, filename, options): - self.hfile = open(filename, "r") - self.block_length = options.block - self.start = options.start - self.sample_rate = options.sample_rate - - self.datatype = scipy.complex64 - self.sizeof_data = self.datatype().nbytes # number of bytes per sample in file - - self.axis_font_size = 16 - self.label_font_size = 18 - self.title_font_size = 20 - self.text_size = 22 - - # Setup PLOT - self.fig = figure(1, figsize=(16, 9), facecolor='w') - rcParams['xtick.labelsize'] = self.axis_font_size - rcParams['ytick.labelsize'] = self.axis_font_size - - self.text_file = figtext(0.10, 0.94, ("File: %s" % filename), weight="heavy", size=self.text_size) - self.text_file_pos = figtext(0.10, 0.88, "File Position: ", weight="heavy", size=self.text_size) - self.text_block = figtext(0.40, 0.88, ("Block Size: %d" % self.block_length), - weight="heavy", size=self.text_size) - self.text_sr = figtext(0.60, 0.88, ("Sample Rate: %.2f" % self.sample_rate), - weight="heavy", size=self.text_size) - self.make_plots() - - self.button_left_axes = self.fig.add_axes([0.45, 0.01, 0.05, 0.05], frameon=True) - self.button_left = Button(self.button_left_axes, "<") - self.button_left_callback = self.button_left.on_clicked(self.button_left_click) - - self.button_right_axes = self.fig.add_axes([0.50, 0.01, 0.05, 0.05], frameon=True) - self.button_right = Button(self.button_right_axes, ">") - self.button_right_callback = self.button_right.on_clicked(self.button_right_click) - - self.xlim = self.sp_iq.get_xlim() - - self.manager = get_current_fig_manager() - connect('key_press_event', self.click) - show() - - def get_data(self): - self.text_file_pos.set_text("File Position: %d" % (self.hfile.tell()//self.sizeof_data)) - self.iq = scipy.fromfile(self.hfile, dtype=self.datatype, count=self.block_length) - #print "Read in %d items" % len(self.iq) - if(len(self.iq) == 0): - print "End of File" - else: - self.reals = [r.real for r in self.iq] - self.imags = [i.imag for i in self.iq] - self.time = [i*(1/self.sample_rate) for i in range(len(self.reals))] - - def make_plots(self): - # if specified on the command-line, set file pointer - self.hfile.seek(self.sizeof_data*self.start, 1) - - self.get_data() - - # Subplot for real and imaginary parts of signal - self.sp_iq = self.fig.add_subplot(2,1,1, position=[0.075, 0.14, 0.85, 0.67]) - self.sp_iq.set_title(("I&Q"), fontsize=self.title_font_size, fontweight="bold") - self.sp_iq.set_xlabel("Time (s)", fontsize=self.label_font_size, fontweight="bold") - self.sp_iq.set_ylabel("Amplitude (V)", fontsize=self.label_font_size, fontweight="bold") - self.plot_iq = plot(self.time, self.reals, 'bo-', self.time, self.imags, 'ro-') - self.sp_iq.set_ylim([1.5*min([min(self.reals), min(self.imags)]), - 1.5*max([max(self.reals), max(self.imags)])]) - - draw() - - def update_plots(self): - self.plot_iq[0].set_data([self.time, self.reals]) - self.plot_iq[1].set_data([self.time, self.imags]) - self.sp_iq.set_ylim([1.5*min([min(self.reals), min(self.imags)]), - 1.5*max([max(self.reals), max(self.imags)])]) - draw() - - def click(self, event): - forward_valid_keys = [" ", "down", "right"] - backward_valid_keys = ["up", "left"] - - if(find(event.key, forward_valid_keys)): - self.step_forward() - - elif(find(event.key, backward_valid_keys)): - self.step_backward() - - def button_left_click(self, event): - self.step_backward() - - def button_right_click(self, event): - self.step_forward() - - def step_forward(self): - self.get_data() - self.update_plots() - - def step_backward(self): - # Step back in file position - if(self.hfile.tell() >= 2*self.sizeof_data*self.block_length ): - self.hfile.seek(-2*self.sizeof_data*self.block_length, 1) - else: - self.hfile.seek(-self.hfile.tell(),1) - self.get_data() - self.update_plots() - - - -#FIXME: there must be a way to do this with a Python builtin -def find(item_in, list_search): - for l in list_search: - if item_in == l: - return True - return False - -def main(): - usage="%prog: [options] input_filename" - description = "Takes a GNU Radio complex binary file and displays the I&Q data versus time. You can set the block size to specify how many points to read in at a time and the start position in the file. By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples." - - parser = OptionParser(conflict_handler="resolve", usage=usage, description=description) - parser.add_option("-B", "--block", type="int", default=1000, - help="Specify the block size [default=%default]") - parser.add_option("-s", "--start", type="int", default=0, - help="Specify where to start in the file [default=%default]") - parser.add_option("-R", "--sample-rate", type="float", default=1.0, - help="Set the sampler rate of the data [default=%default]") - - (options, args) = parser.parse_args () - if len(args) != 1: - parser.print_help() - raise SystemExit, 1 - filename = args[0] - - dc = draw_fft(filename, options) - -if __name__ == "__main__": - try: - main() - except KeyboardInterrupt: - pass - - - diff --git a/gnuradio-core/src/utils/gr_plot_short.py b/gnuradio-core/src/utils/gr_plot_short.py deleted file mode 100755 index 399c0aab..00000000 --- a/gnuradio-core/src/utils/gr_plot_short.py +++ /dev/null @@ -1,58 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2007,2008 Free Software Foundation, Inc. -# -# This file is part of GNU Radio -# -# GNU Radio 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, or (at your option) -# any later version. -# -# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to -# the Free Software Foundation, Inc., 51 Franklin Street, -# Boston, MA 02110-1301, USA. -# - -try: - import scipy -except ImportError: - print "Please install SciPy to run this script (http://www.scipy.org/)" - raise SystemExit, 1 - -from optparse import OptionParser -from gr_plot_data import plot_data - -def main(): - usage="%prog: [options] input_filenames" - description = "Takes a GNU Radio short integer binary file and displays the samples versus time. You can set the block size to specify how many points to read in at a time and the start position in the file. By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples." - - parser = OptionParser(conflict_handler="resolve", usage=usage, description=description) - parser.add_option("-B", "--block", type="int", default=1000, - help="Specify the block size [default=%default]") - parser.add_option("-s", "--start", type="int", default=0, - help="Specify where to start in the file [default=%default]") - parser.add_option("-R", "--sample-rate", type="float", default=1.0, - help="Set the sampler rate of the data [default=%default]") - - (options, args) = parser.parse_args () - if len(args) < 1: - parser.print_help() - raise SystemExit, 1 - filenames = args - - datatype=scipy.int16 - dc = plot_data(datatype, filenames, options) - -if __name__ == "__main__": - try: - main() - except KeyboardInterrupt: - pass - diff --git a/gr-utils/src/python/Makefile.am b/gr-utils/src/python/Makefile.am index 23115363..8b190d66 100644 --- a/gr-utils/src/python/Makefile.am +++ b/gr-utils/src/python/Makefile.am @@ -19,10 +19,26 @@ # Boston, MA 02110-1301, USA. # +include $(top_srcdir)/Makefile.common + EXTRA_DIST = \ - $(bin_SCRIPTS) + $(bin_SCRIPTS) \ + README.plot + +ourpythondir = $(grpythondir) + +ourpython_PYTHON = \ + plot_data.py bin_SCRIPTS = \ + gr_plot_char.py \ + gr_plot_const.py \ + gr_plot_fft_c.py \ + gr_plot_fft_f.py \ + gr_plot_float.py \ + gr_plot_int.py \ + gr_plot_iq.py \ + gr_plot_short.py \ usrp_fft.py \ usrp_oscope.py \ usrp_print_db.py \ @@ -31,3 +47,5 @@ bin_SCRIPTS = \ usrp_siggen.py \ usrp_test_counting.py \ usrp_test_loopback.py + +MOSTLYCLEANFILES = *~ *.pyc diff --git a/gr-utils/src/python/README.plot b/gr-utils/src/python/README.plot new file mode 100644 index 00000000..0c4657ba --- /dev/null +++ b/gr-utils/src/python/README.plot @@ -0,0 +1,40 @@ +* gr_plot_*.py: +These are a collection of Python scripts to enable viewing and analysis of files produced by GNU Radio flow graphs. Most of them work off complex data produced by digital waveforms. + + +** gr_plot_float.py: +Takes a GNU Radio floating point binary file and displays the samples versus time. You can set the block size to specify how many points to read in at a time and the start position in the file. + +By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples. + + + +** gr_plot_iq.py: +Takes a GNU Radio complex binary file and displays the I&Q data versus time. You can set the block size to specify how many points to read in at a time and the start position in the file. + +By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples. + + + +** gr_plot_const.py: +Takes a GNU Radio complex binary file and displays the I&Q data versus time and the constellation plot (I vs. Q). You can set the block size to specify how many points to read in at a time and the start position in the file. + +By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples. + + + +** gr_plot_fft_c.py: +Takes a GNU Radio complex binary file and displays the I&Q data versus time as well as the frequency domain (FFT) plot. The y-axis values are plotted assuming volts as the amplitude of the I&Q streams and converted into dBm in the frequency domain (the 1/N power adjustment out of the FFT is performed internally). + +The script plots a certain block of data at a time, specified on the command line as -B or --block. This value defaults to 1000. The start position in the file can be set by specifying -s or --start and defaults to 0 (the start of the file). + +By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time and frequency axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples. + + + +** gr_plot_fft_f.py: +Takes a GNU Radio floating point binary file and displays the samples versus time as well as the frequency domain (FFT) plot. The y-axis values are plotted assuming volts as the amplitude of the I&Q streams and converted into dBm in the frequency domain (the 1/N power adjustment out of the FFT is performed internally). + +The script plots a certain block of data at a time, specified on the command line as -B or --block. This value defaults to 1000. The start position in the file can be set by specifying -s or --start and defaults to 0 (the start of the file). + +By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time and frequency axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples. diff --git a/gr-utils/src/python/gr_plot_char.py b/gr-utils/src/python/gr_plot_char.py new file mode 100755 index 00000000..87a323c9 --- /dev/null +++ b/gr-utils/src/python/gr_plot_char.py @@ -0,0 +1,58 @@ +#!/usr/bin/env python +# +# Copyright 2007,2008 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio 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, or (at your option) +# any later version. +# +# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +try: + import scipy +except ImportError: + print "Please install SciPy to run this script (http://www.scipy.org/)" + raise SystemExit, 1 + +from optparse import OptionParser +from gnuradio.plot_data import plot_data + +def main(): + usage="%prog: [options] input_filenames" + description = "Takes a GNU Radio byte/char binary file and displays the samples versus time. You can set the block size to specify how many points to read in at a time and the start position in the file. By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples." + + parser = OptionParser(conflict_handler="resolve", usage=usage, description=description) + parser.add_option("-B", "--block", type="int", default=1000, + help="Specify the block size [default=%default]") + parser.add_option("-s", "--start", type="int", default=0, + help="Specify where to start in the file [default=%default]") + parser.add_option("-R", "--sample-rate", type="float", default=1.0, + help="Set the sampler rate of the data [default=%default]") + + (options, args) = parser.parse_args () + if len(args) < 1: + parser.print_help() + raise SystemExit, 1 + filenames = args + + datatype=scipy.int8 + dc = plot_data(datatype, filenames, options) + +if __name__ == "__main__": + try: + main() + except KeyboardInterrupt: + pass + diff --git a/gr-utils/src/python/gr_plot_const.py b/gr-utils/src/python/gr_plot_const.py new file mode 100755 index 00000000..d9a9daab --- /dev/null +++ b/gr-utils/src/python/gr_plot_const.py @@ -0,0 +1,208 @@ +#!/usr/bin/env python +# +# Copyright 2007,2008 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio 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, or (at your option) +# any later version. +# +# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +try: + import scipy +except ImportError: + print "Please install SciPy to run this script (http://www.scipy.org/)" + raise SystemExit, 1 + +try: + from pylab import * + from matplotlib.font_manager import fontManager, FontProperties +except ImportError: + print "Please install Matplotlib to run this script (http://matplotlib.sourceforge.net/)" + raise SystemExit, 1 + +from optparse import OptionParser + +matplotlib.interactive(True) +matplotlib.use('TkAgg') + +class draw_constellation: + def __init__(self, filename, options): + self.hfile = open(filename, "r") + self.block_length = options.block + self.start = options.start + self.sample_rate = options.sample_rate + + self.datatype = scipy.complex64 + self.sizeof_data = self.datatype().nbytes # number of bytes per sample in file + + self.axis_font_size = 16 + self.label_font_size = 18 + self.title_font_size = 20 + + # Setup PLOT + self.fig = figure(1, figsize=(16, 9), facecolor='w') + rcParams['xtick.labelsize'] = self.axis_font_size + rcParams['ytick.labelsize'] = self.axis_font_size + + self.text_file = figtext(0.10, 0.95, ("File: %s" % filename), weight="heavy", size=16) + self.text_file_pos = figtext(0.10, 0.90, "File Position: ", weight="heavy", size=16) + self.text_block = figtext(0.40, 0.90, ("Block Size: %d" % self.block_length), + weight="heavy", size=16) + self.text_sr = figtext(0.60, 0.90, ("Sample Rate: %.2f" % self.sample_rate), + weight="heavy", size=16) + self.make_plots() + + self.button_left_axes = self.fig.add_axes([0.45, 0.01, 0.05, 0.05], frameon=True) + self.button_left = Button(self.button_left_axes, "<") + self.button_left_callback = self.button_left.on_clicked(self.button_left_click) + + self.button_right_axes = self.fig.add_axes([0.50, 0.01, 0.05, 0.05], frameon=True) + self.button_right = Button(self.button_right_axes, ">") + self.button_right_callback = self.button_right.on_clicked(self.button_right_click) + + self.xlim = self.sp_iq.get_xlim() + + self.manager = get_current_fig_manager() + connect('draw_event', self.zoom) + connect('key_press_event', self.click) + show() + + def get_data(self): + self.text_file_pos.set_text("File Position: %d" % (self.hfile.tell()//self.sizeof_data)) + iq = scipy.fromfile(self.hfile, dtype=self.datatype, count=self.block_length) + #print "Read in %d items" % len(iq) + if(len(iq) == 0): + print "End of File" + else: + self.reals = [r.real for r in iq] + self.imags = [i.imag for i in iq] + + self.time = [i*(1/self.sample_rate) for i in range(len(self.reals))] + + def make_plots(self): + # if specified on the command-line, set file pointer + self.hfile.seek(self.sizeof_data*self.start, 1) + + self.get_data() + + # Subplot for real and imaginary parts of signal + self.sp_iq = self.fig.add_subplot(2,1,1, position=[0.075, 0.2, 0.4, 0.6]) + self.sp_iq.set_title(("I&Q"), fontsize=self.title_font_size, fontweight="bold") + self.sp_iq.set_xlabel("Time (s)", fontsize=self.label_font_size, fontweight="bold") + self.sp_iq.set_ylabel("Amplitude (V)", fontsize=self.label_font_size, fontweight="bold") + self.plot_iq = plot(self.time, self.reals, 'bo-', self.time, self.imags, 'ro-') + self.sp_iq.axis([min(self.time), max(self.time), + 1.5*min([min(self.reals), min(self.imags)]), + 1.5*max([max(self.reals), max(self.imags)])]) + + # Subplot for constellation plot + self.sp_const = self.fig.add_subplot(2,2,1, position=[0.575, 0.2, 0.4, 0.6]) + self.sp_const.set_title(("Constellation"), fontsize=self.title_font_size, fontweight="bold") + self.sp_const.set_xlabel("Inphase", fontsize=self.label_font_size, fontweight="bold") + self.sp_const.set_ylabel("Qaudrature", fontsize=self.label_font_size, fontweight="bold") + self.plot_const = plot(self.reals, self.imags, 'bo') + self.sp_const.axis([-2, 2, -2, 2]) + + draw() + + def update_plots(self): + self.plot_iq[0].set_data([self.time, self.reals]) + self.plot_iq[1].set_data([self.time, self.imags]) + self.sp_iq.axis([min(self.time), max(self.time), + 1.5*min([min(self.reals), min(self.imags)]), + 1.5*max([max(self.reals), max(self.imags)])]) + + self.plot_const[0].set_data([self.reals, self.imags]) + self.sp_const.axis([-2, 2, -2, 2]) + draw() + + def zoom(self, event): + newxlim = self.sp_iq.get_xlim() + if(newxlim != self.xlim): + self.xlim = newxlim + r = self.reals[int(ceil(self.xlim[0])) : int(ceil(self.xlim[1]))] + i = self.imags[int(ceil(self.xlim[0])) : int(ceil(self.xlim[1]))] + + self.plot_const[0].set_data(r, i) + self.sp_const.axis([-2, 2, -2, 2]) + self.manager.canvas.draw() + draw() + + def click(self, event): + forward_valid_keys = [" ", "down", "right"] + backward_valid_keys = ["up", "left"] + + if(find(event.key, forward_valid_keys)): + self.step_forward() + + elif(find(event.key, backward_valid_keys)): + self.step_backward() + + def button_left_click(self, event): + self.step_backward() + + def button_right_click(self, event): + self.step_forward() + + def step_forward(self): + self.get_data() + self.update_plots() + + def step_backward(self): + # Step back in file position + if(self.hfile.tell() >= 2*self.sizeof_data*self.block_length ): + self.hfile.seek(-2*self.sizeof_data*self.block_length, 1) + else: + self.hfile.seek(-self.hfile.tell(),1) + self.get_data() + self.update_plots() + + +def find(item_in, list_search): + try: + return list_search.index(item_in) != None + except ValueError: + return False + + +def main(): + usage="%prog: [options] input_filename" + description = "Takes a GNU Radio complex binary file and displays the I&Q data versus time and the constellation plot (I vs. Q). You can set the block size to specify how many points to read in at a time and the start position in the file. By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples." + + parser = OptionParser(conflict_handler="resolve", usage=usage, description=description) + parser.add_option("-B", "--block", type="int", default=1000, + help="Specify the block size [default=%default]") + parser.add_option("-s", "--start", type="int", default=0, + help="Specify where to start in the file [default=%default]") + parser.add_option("-R", "--sample-rate", type="float", default=1.0, + help="Set the sampler rate of the data [default=%default]") + + (options, args) = parser.parse_args () + if len(args) != 1: + parser.print_help() + raise SystemExit, 1 + filename = args[0] + + dc = draw_constellation(filename, options) + +if __name__ == "__main__": + try: + main() + except KeyboardInterrupt: + pass + + + diff --git a/gr-utils/src/python/gr_plot_fft_c.py b/gr-utils/src/python/gr_plot_fft_c.py new file mode 100755 index 00000000..b7b802fd --- /dev/null +++ b/gr-utils/src/python/gr_plot_fft_c.py @@ -0,0 +1,231 @@ +#!/usr/bin/env python +# +# Copyright 2007,2008 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio 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, or (at your option) +# any later version. +# +# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +try: + import scipy + from scipy import fftpack +except ImportError: + print "Please install SciPy to run this script (http://www.scipy.org/)" + raise SystemExit, 1 + +try: + from pylab import * +except ImportError: + print "Please install Matplotlib to run this script (http://matplotlib.sourceforge.net/)" + raise SystemExit, 1 + +from optparse import OptionParser +from math import log10 + +matplotlib.interactive(True) +matplotlib.use('TkAgg') + +class draw_fft_c: + def __init__(self, filename, options): + self.hfile = open(filename, "r") + self.block_length = options.block + self.start = options.start + self.sample_rate = options.sample_rate + + self.datatype = scipy.complex64 + self.sizeof_data = self.datatype().nbytes # number of bytes per sample in file + + self.axis_font_size = 16 + self.label_font_size = 18 + self.title_font_size = 20 + self.text_size = 22 + + # Setup PLOT + self.fig = figure(1, figsize=(16, 9), facecolor='w') + rcParams['xtick.labelsize'] = self.axis_font_size + rcParams['ytick.labelsize'] = self.axis_font_size + + self.text_file = figtext(0.10, 0.94, ("File: %s" % filename), weight="heavy", size=self.text_size) + self.text_file_pos = figtext(0.10, 0.88, "File Position: ", weight="heavy", size=self.text_size) + self.text_block = figtext(0.40, 0.88, ("Block Size: %d" % self.block_length), + weight="heavy", size=self.text_size) + self.text_sr = figtext(0.60, 0.88, ("Sample Rate: %.2f" % self.sample_rate), + weight="heavy", size=self.text_size) + self.make_plots() + + self.button_left_axes = self.fig.add_axes([0.45, 0.01, 0.05, 0.05], frameon=True) + self.button_left = Button(self.button_left_axes, "<") + self.button_left_callback = self.button_left.on_clicked(self.button_left_click) + + self.button_right_axes = self.fig.add_axes([0.50, 0.01, 0.05, 0.05], frameon=True) + self.button_right = Button(self.button_right_axes, ">") + self.button_right_callback = self.button_right.on_clicked(self.button_right_click) + + self.xlim = self.sp_iq.get_xlim() + + self.manager = get_current_fig_manager() + connect('draw_event', self.zoom) + connect('key_press_event', self.click) + show() + + def get_data(self): + self.text_file_pos.set_text("File Position: %d" % (self.hfile.tell()//self.sizeof_data)) + self.iq = scipy.fromfile(self.hfile, dtype=self.datatype, count=self.block_length) + #print "Read in %d items" % len(self.iq) + if(len(self.iq) == 0): + print "End of File" + else: + self.reals = [r.real for r in self.iq] + self.imags = [i.imag for i in self.iq] + + self.iq_fft = self.dofft(self.iq) + + self.time = [i*(1/self.sample_rate) for i in range(len(self.reals))] + self.freq = self.calc_freq(self.time, self.sample_rate) + + + def dofft(self, iq): + N = len(iq) + iq_fft = fftpack.fftshift(scipy.fft(iq)) # fft and shift axis + iq_fft = [20*log10(abs(i/N)) for i in iq_fft] # convert to decibels, adjust power + return iq_fft + + def calc_freq(self, time, sample_rate): + N = len(time) + Fs = 1.0 / (max(time) - min(time)) + Fn = 0.5 * sample_rate + freq = [-Fn + i*Fs for i in range(N)] + return freq + + def make_plots(self): + # if specified on the command-line, set file pointer + self.hfile.seek(self.sizeof_data*self.start, 1) + + self.get_data() + + # Subplot for real and imaginary parts of signal + self.sp_iq = self.fig.add_subplot(2,1,1, position=[0.075, 0.2, 0.4, 0.6]) + self.sp_iq.set_title(("I&Q"), fontsize=self.title_font_size, fontweight="bold") + self.sp_iq.set_xlabel("Time (s)", fontsize=self.label_font_size, fontweight="bold") + self.sp_iq.set_ylabel("Amplitude (V)", fontsize=self.label_font_size, fontweight="bold") + self.plot_iq = plot(self.time, self.reals, 'bo-', self.time, self.imags, 'ro-') + self.sp_iq.set_ylim([1.5*min([min(self.reals), min(self.imags)]), + 1.5*max([max(self.reals), max(self.imags)])]) + + # Subplot for constellation plot + self.sp_fft = self.fig.add_subplot(2,2,1, position=[0.575, 0.2, 0.4, 0.6]) + self.sp_fft.set_title(("FFT"), fontsize=self.title_font_size, fontweight="bold") + self.sp_fft.set_xlabel("Frequency (Hz)", fontsize=self.label_font_size, fontweight="bold") + self.sp_fft.set_ylabel("Power (dBm)", fontsize=self.label_font_size, fontweight="bold") + self.plot_fft = plot(self.freq, self.iq_fft, '-bo') + self.sp_fft.set_ylim([min(self.iq_fft)-10, max(self.iq_fft)+10]) + + draw() + + def update_plots(self): + self.plot_iq[0].set_data([self.time, self.reals]) + self.plot_iq[1].set_data([self.time, self.imags]) + self.sp_iq.set_ylim([1.5*min([min(self.reals), min(self.imags)]), + 1.5*max([max(self.reals), max(self.imags)])]) + + self.plot_fft[0].set_data([self.freq, self.iq_fft]) + self.sp_fft.set_ylim([min(self.iq_fft)-10, max(self.iq_fft)+10]) + + draw() + + def zoom(self, event): + newxlim = self.sp_iq.get_xlim() + if(newxlim != self.xlim): + self.xlim = newxlim + xmin = max(0, int(ceil(self.sample_rate*self.xlim[0]))) + xmax = min(int(ceil(self.sample_rate*self.xlim[1])), len(self.iq)) + + iq = self.iq[xmin : xmax] + time = self.time[xmin : xmax] + + iq_fft = self.dofft(iq) + freq = self.calc_freq(time, self.sample_rate) + + self.plot_fft[0].set_data(freq, iq_fft) + self.sp_fft.axis([min(freq), max(freq), + min(iq_fft)-10, max(iq_fft)+10]) + + draw() + + def click(self, event): + forward_valid_keys = [" ", "down", "right"] + backward_valid_keys = ["up", "left"] + + if(find(event.key, forward_valid_keys)): + self.step_forward() + + elif(find(event.key, backward_valid_keys)): + self.step_backward() + + def button_left_click(self, event): + self.step_backward() + + def button_right_click(self, event): + self.step_forward() + + def step_forward(self): + self.get_data() + self.update_plots() + + def step_backward(self): + # Step back in file position + if(self.hfile.tell() >= 2*self.sizeof_data*self.block_length ): + self.hfile.seek(-2*self.sizeof_data*self.block_length, 1) + else: + self.hfile.seek(-self.hfile.tell(),1) + self.get_data() + self.update_plots() + +def find(item_in, list_search): + try: + return list_search.index(item_in) != None + except ValueError: + return False + +def main(): + usage="%prog: [options] input_filename" + description = "Takes a GNU Radio complex binary file and displays the I&Q data versus time as well as the frequency domain (FFT) plot. The y-axis values are plotted assuming volts as the amplitude of the I&Q streams and converted into dBm in the frequency domain (the 1/N power adjustment out of the FFT is performed internally). The script plots a certain block of data at a time, specified on the command line as -B or --block. This value defaults to 1000. The start position in the file can be set by specifying -s or --start and defaults to 0 (the start of the file). By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time and frequency axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples." + + parser = OptionParser(conflict_handler="resolve", usage=usage, description=description) + parser.add_option("-B", "--block", type="int", default=1000, + help="Specify the block size [default=%default]") + parser.add_option("-s", "--start", type="int", default=0, + help="Specify where to start in the file [default=%default]") + parser.add_option("-R", "--sample-rate", type="float", default=1.0, + help="Set the sampler rate of the data [default=%default]") + + (options, args) = parser.parse_args () + if len(args) != 1: + parser.print_help() + raise SystemExit, 1 + filename = args[0] + + dc = draw_fft_c(filename, options) + +if __name__ == "__main__": + try: + main() + except KeyboardInterrupt: + pass + + + diff --git a/gr-utils/src/python/gr_plot_fft_f.py b/gr-utils/src/python/gr_plot_fft_f.py new file mode 100755 index 00000000..8f545c58 --- /dev/null +++ b/gr-utils/src/python/gr_plot_fft_f.py @@ -0,0 +1,234 @@ +#!/usr/bin/env python +# +# Copyright 2007,2008 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio 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, or (at your option) +# any later version. +# +# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +try: + import scipy + from scipy import fftpack +except ImportError: + print "Please install SciPy to run this script (http://www.scipy.org/)" + raise SystemExit, 1 + +try: + from pylab import * +except ImportError: + print "Please install Matplotlib to run this script (http://matplotlib.sourceforge.net/)" + raise SystemExit, 1 + +from optparse import OptionParser +from math import log10 + +matplotlib.interactive(True) +matplotlib.use('TkAgg') + +class draw_fft_f: + def __init__(self, filename, options): + self.hfile = open(filename, "r") + self.block_length = options.block + self.start = options.start + self.sample_rate = options.sample_rate + + self.datatype = scipy.float32 + self.sizeof_data = self.datatype().nbytes # number of bytes per sample in file + + self.axis_font_size = 16 + self.label_font_size = 18 + self.title_font_size = 20 + self.text_size = 22 + + # Setup PLOT + self.fig = figure(1, figsize=(16, 9), facecolor='w') + rcParams['xtick.labelsize'] = self.axis_font_size + rcParams['ytick.labelsize'] = self.axis_font_size + + self.text_file = figtext(0.10, 0.94, ("File: %s" % filename), weight="heavy", size=self.text_size) + self.text_file_pos = figtext(0.10, 0.88, "File Position: ", weight="heavy", size=self.text_size) + self.text_block = figtext(0.40, 0.88, ("Block Size: %d" % self.block_length), + weight="heavy", size=self.text_size) + self.text_sr = figtext(0.60, 0.88, ("Sample Rate: %.2f" % self.sample_rate), + weight="heavy", size=self.text_size) + self.make_plots() + + self.button_left_axes = self.fig.add_axes([0.45, 0.01, 0.05, 0.05], frameon=True) + self.button_left = Button(self.button_left_axes, "<") + self.button_left_callback = self.button_left.on_clicked(self.button_left_click) + + self.button_right_axes = self.fig.add_axes([0.50, 0.01, 0.05, 0.05], frameon=True) + self.button_right = Button(self.button_right_axes, ">") + self.button_right_callback = self.button_right.on_clicked(self.button_right_click) + + self.xlim = self.sp_f.get_xlim() + + self.manager = get_current_fig_manager() + connect('draw_event', self.zoom) + connect('key_press_event', self.click) + show() + + def get_data(self): + self.text_file_pos.set_text("File Position: %d" % (self.hfile.tell()//self.sizeof_data)) + self.floats = scipy.fromfile(self.hfile, dtype=self.datatype, count=self.block_length) + #print "Read in %d items" % len(self.floats) + if(len(self.floats) == 0): + print "End of File" + else: + self.f_fft = self.dofft(self.floats) + + self.time = [i*(1/self.sample_rate) for i in range(len(self.floats))] + self.freq = self.calc_freq(self.time, self.sample_rate) + + def dofft(self, f): + N = len(f) + f_fft = fftpack.fftshift(scipy.fft(f)) # fft and shift axis + f_dB = list() + for f in f_fft: + try: + f_dB.append(20*log10(abs(f/N))) # convert to decibels, adjust power + except OverflowError: # protect against taking log(0) + f = 1e-14 # not sure if this is the best way to do this + f_dB.append(20*log10(abs(f/N))) + + return f_dB + + def calc_freq(self, time, sample_rate): + N = len(time) + Fs = 1.0 / (max(time) - min(time)) + Fn = 0.5 * sample_rate + freq = [-Fn + i*Fs for i in range(N)] + return freq + + def make_plots(self): + # if specified on the command-line, set file pointer + self.hfile.seek(self.sizeof_data*self.start, 1) + + self.get_data() + + # Subplot for real and imaginary parts of signal + self.sp_f = self.fig.add_subplot(2,1,1, position=[0.075, 0.2, 0.4, 0.6]) + self.sp_f.set_title(("Amplitude"), fontsize=self.title_font_size, fontweight="bold") + self.sp_f.set_xlabel("Time (s)", fontsize=self.label_font_size, fontweight="bold") + self.sp_f.set_ylabel("Amplitude (V)", fontsize=self.label_font_size, fontweight="bold") + self.plot_f = plot(self.time, self.floats, 'bo-') + self.sp_f.set_ylim([1.5*min(self.floats), + 1.5*max(self.floats)]) + + # Subplot for constellation plot + self.sp_fft = self.fig.add_subplot(2,2,1, position=[0.575, 0.2, 0.4, 0.6]) + self.sp_fft.set_title(("FFT"), fontsize=self.title_font_size, fontweight="bold") + self.sp_fft.set_xlabel("Frequency (Hz)", fontsize=self.label_font_size, fontweight="bold") + self.sp_fft.set_ylabel("Power (dBm)", fontsize=self.label_font_size, fontweight="bold") + self.plot_fft = plot(self.freq, self.f_fft, '-bo') + self.sp_fft.set_ylim([min(self.f_fft)-10, max(self.f_fft)+10]) + + draw() + + def update_plots(self): + self.plot_f[0].set_data([self.time, self.floats]) + self.sp_f.set_ylim([1.5*min(self.floats), + 1.5*max(self.floats)]) + + self.plot_fft[0].set_data([self.freq, self.f_fft]) + self.sp_fft.set_ylim([min(self.f_fft)-10, max(self.f_fft)+10]) + + draw() + + def zoom(self, event): + newxlim = self.sp_f.get_xlim() + if(newxlim != self.xlim): + self.xlim = newxlim + xmin = max(0, int(ceil(self.sample_rate*self.xlim[0]))) + xmax = min(int(ceil(self.sample_rate*self.xlim[1])), len(self.floats)) + + f = self.floats[xmin : xmax] + time = self.time[xmin : xmax] + + f_fft = self.dofft(f) + freq = self.calc_freq(time, self.sample_rate) + + self.plot_fft[0].set_data(freq, f_fft) + self.sp_fft.axis([min(freq), max(freq), + min(f_fft)-10, max(f_fft)+10]) + + draw() + + def click(self, event): + forward_valid_keys = [" ", "down", "right"] + backward_valid_keys = ["up", "left"] + + if(find(event.key, forward_valid_keys)): + self.step_forward() + + elif(find(event.key, backward_valid_keys)): + self.step_backward() + + def button_left_click(self, event): + self.step_backward() + + def button_right_click(self, event): + self.step_forward() + + def step_forward(self): + self.get_data() + self.update_plots() + + def step_backward(self): + # Step back in file position + if(self.hfile.tell() >= 2*self.sizeof_data*self.block_length ): + self.hfile.seek(-2*self.sizeof_data*self.block_length, 1) + else: + self.hfile.seek(-self.hfile.tell(),1) + self.get_data() + self.update_plots() + + +def find(item_in, list_search): + try: + return list_search.index(item_in) != None + except ValueError: + return False + +def main(): + usage="%prog: [options] input_filename" + description = "Takes a GNU Radio floating point binary file and displays the sample data versus time as well as the frequency domain (FFT) plot. The y-axis values are plotted assuming volts as the amplitude of the I&Q streams and converted into dBm in the frequency domain (the 1/N power adjustment out of the FFT is performed internally). The script plots a certain block of data at a time, specified on the command line as -B or --block. This value defaults to 1000. The start position in the file can be set by specifying -s or --start and defaults to 0 (the start of the file). By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time and frequency axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples." + + parser = OptionParser(conflict_handler="resolve", usage=usage, description=description) + parser.add_option("-B", "--block", type="int", default=1000, + help="Specify the block size [default=%default]") + parser.add_option("-s", "--start", type="int", default=0, + help="Specify where to start in the file [default=%default]") + parser.add_option("-R", "--sample-rate", type="float", default=1.0, + help="Set the sampler rate of the data [default=%default]") + + (options, args) = parser.parse_args () + if len(args) != 1: + parser.print_help() + raise SystemExit, 1 + filename = args[0] + + dc = draw_fft_f(filename, options) + +if __name__ == "__main__": + try: + main() + except KeyboardInterrupt: + pass + + + diff --git a/gr-utils/src/python/gr_plot_float.py b/gr-utils/src/python/gr_plot_float.py new file mode 100755 index 00000000..e5c22a31 --- /dev/null +++ b/gr-utils/src/python/gr_plot_float.py @@ -0,0 +1,58 @@ +#!/usr/bin/env python +# +# Copyright 2007,2008 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio 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, or (at your option) +# any later version. +# +# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +try: + import scipy +except ImportError: + print "Please install SciPy to run this script (http://www.scipy.org/)" + raise SystemExit, 1 + +from optparse import OptionParser +from gnuradio.plot_data import plot_data + +def main(): + usage="%prog: [options] input_filenames" + description = "Takes a GNU Radio floating point binary file and displays the samples versus time. You can set the block size to specify how many points to read in at a time and the start position in the file. By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples." + + parser = OptionParser(conflict_handler="resolve", usage=usage, description=description) + parser.add_option("-B", "--block", type="int", default=1000, + help="Specify the block size [default=%default]") + parser.add_option("-s", "--start", type="int", default=0, + help="Specify where to start in the file [default=%default]") + parser.add_option("-R", "--sample-rate", type="float", default=1.0, + help="Set the sampler rate of the data [default=%default]") + + (options, args) = parser.parse_args () + if len(args) < 1: + parser.print_help() + raise SystemExit, 1 + filenames = args + + datatype=scipy.float32 + dc = plot_data(datatype, filenames, options) + +if __name__ == "__main__": + try: + main() + except KeyboardInterrupt: + pass + diff --git a/gr-utils/src/python/gr_plot_int.py b/gr-utils/src/python/gr_plot_int.py new file mode 100755 index 00000000..b44d4360 --- /dev/null +++ b/gr-utils/src/python/gr_plot_int.py @@ -0,0 +1,58 @@ +#!/usr/bin/env python +# +# Copyright 2007,2008 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio 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, or (at your option) +# any later version. +# +# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +try: + import scipy +except ImportError: + print "Please install SciPy to run this script (http://www.scipy.org/)" + raise SystemExit, 1 + +from optparse import OptionParser +from gnuradio.plot_data import plot_data + +def main(): + usage="%prog: [options] input_filenames" + description = "Takes a GNU Radio integer binary file and displays the samples versus time. You can set the block size to specify how many points to read in at a time and the start position in the file. By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples." + + parser = OptionParser(conflict_handler="resolve", usage=usage, description=description) + parser.add_option("-B", "--block", type="int", default=1000, + help="Specify the block size [default=%default]") + parser.add_option("-s", "--start", type="int", default=0, + help="Specify where to start in the file [default=%default]") + parser.add_option("-R", "--sample-rate", type="float", default=1.0, + help="Set the sampler rate of the data [default=%default]") + + (options, args) = parser.parse_args () + if len(args) < 1: + parser.print_help() + raise SystemExit, 1 + filenames = args + + datatype=scipy.int32 + dc = plot_data(datatype, filenames, options) + +if __name__ == "__main__": + try: + main() + except KeyboardInterrupt: + pass + diff --git a/gr-utils/src/python/gr_plot_iq.py b/gr-utils/src/python/gr_plot_iq.py new file mode 100755 index 00000000..2a4142a8 --- /dev/null +++ b/gr-utils/src/python/gr_plot_iq.py @@ -0,0 +1,180 @@ +#!/usr/bin/env python +# +# Copyright 2007,2008 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio 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, or (at your option) +# any later version. +# +# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +try: + import scipy +except ImportError: + print "Please install SciPy to run this script (http://www.scipy.org/)" + raise SystemExit, 1 + +try: + from pylab import * +except ImportError: + print "Please install Matplotlib to run this script (http://matplotlib.sourceforge.net/)" + raise SystemExit, 1 + +from optparse import OptionParser + +matplotlib.interactive(True) +matplotlib.use('TkAgg') + +class draw_fft: + def __init__(self, filename, options): + self.hfile = open(filename, "r") + self.block_length = options.block + self.start = options.start + self.sample_rate = options.sample_rate + + self.datatype = scipy.complex64 + self.sizeof_data = self.datatype().nbytes # number of bytes per sample in file + + self.axis_font_size = 16 + self.label_font_size = 18 + self.title_font_size = 20 + self.text_size = 22 + + # Setup PLOT + self.fig = figure(1, figsize=(16, 9), facecolor='w') + rcParams['xtick.labelsize'] = self.axis_font_size + rcParams['ytick.labelsize'] = self.axis_font_size + + self.text_file = figtext(0.10, 0.94, ("File: %s" % filename), weight="heavy", size=self.text_size) + self.text_file_pos = figtext(0.10, 0.88, "File Position: ", weight="heavy", size=self.text_size) + self.text_block = figtext(0.40, 0.88, ("Block Size: %d" % self.block_length), + weight="heavy", size=self.text_size) + self.text_sr = figtext(0.60, 0.88, ("Sample Rate: %.2f" % self.sample_rate), + weight="heavy", size=self.text_size) + self.make_plots() + + self.button_left_axes = self.fig.add_axes([0.45, 0.01, 0.05, 0.05], frameon=True) + self.button_left = Button(self.button_left_axes, "<") + self.button_left_callback = self.button_left.on_clicked(self.button_left_click) + + self.button_right_axes = self.fig.add_axes([0.50, 0.01, 0.05, 0.05], frameon=True) + self.button_right = Button(self.button_right_axes, ">") + self.button_right_callback = self.button_right.on_clicked(self.button_right_click) + + self.xlim = self.sp_iq.get_xlim() + + self.manager = get_current_fig_manager() + connect('key_press_event', self.click) + show() + + def get_data(self): + self.text_file_pos.set_text("File Position: %d" % (self.hfile.tell()//self.sizeof_data)) + self.iq = scipy.fromfile(self.hfile, dtype=self.datatype, count=self.block_length) + #print "Read in %d items" % len(self.iq) + if(len(self.iq) == 0): + print "End of File" + else: + self.reals = [r.real for r in self.iq] + self.imags = [i.imag for i in self.iq] + self.time = [i*(1/self.sample_rate) for i in range(len(self.reals))] + + def make_plots(self): + # if specified on the command-line, set file pointer + self.hfile.seek(self.sizeof_data*self.start, 1) + + self.get_data() + + # Subplot for real and imaginary parts of signal + self.sp_iq = self.fig.add_subplot(2,1,1, position=[0.075, 0.14, 0.85, 0.67]) + self.sp_iq.set_title(("I&Q"), fontsize=self.title_font_size, fontweight="bold") + self.sp_iq.set_xlabel("Time (s)", fontsize=self.label_font_size, fontweight="bold") + self.sp_iq.set_ylabel("Amplitude (V)", fontsize=self.label_font_size, fontweight="bold") + self.plot_iq = plot(self.time, self.reals, 'bo-', self.time, self.imags, 'ro-') + self.sp_iq.set_ylim([1.5*min([min(self.reals), min(self.imags)]), + 1.5*max([max(self.reals), max(self.imags)])]) + + draw() + + def update_plots(self): + self.plot_iq[0].set_data([self.time, self.reals]) + self.plot_iq[1].set_data([self.time, self.imags]) + self.sp_iq.set_ylim([1.5*min([min(self.reals), min(self.imags)]), + 1.5*max([max(self.reals), max(self.imags)])]) + draw() + + def click(self, event): + forward_valid_keys = [" ", "down", "right"] + backward_valid_keys = ["up", "left"] + + if(find(event.key, forward_valid_keys)): + self.step_forward() + + elif(find(event.key, backward_valid_keys)): + self.step_backward() + + def button_left_click(self, event): + self.step_backward() + + def button_right_click(self, event): + self.step_forward() + + def step_forward(self): + self.get_data() + self.update_plots() + + def step_backward(self): + # Step back in file position + if(self.hfile.tell() >= 2*self.sizeof_data*self.block_length ): + self.hfile.seek(-2*self.sizeof_data*self.block_length, 1) + else: + self.hfile.seek(-self.hfile.tell(),1) + self.get_data() + self.update_plots() + + +def find(item_in, list_search): + try: + return list_search.index(item_in) != None + except ValueError: + return False + +def main(): + usage="%prog: [options] input_filename" + description = "Takes a GNU Radio complex binary file and displays the I&Q data versus time. You can set the block size to specify how many points to read in at a time and the start position in the file. By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples." + + parser = OptionParser(conflict_handler="resolve", usage=usage, description=description) + parser.add_option("-B", "--block", type="int", default=1000, + help="Specify the block size [default=%default]") + parser.add_option("-s", "--start", type="int", default=0, + help="Specify where to start in the file [default=%default]") + parser.add_option("-R", "--sample-rate", type="float", default=1.0, + help="Set the sampler rate of the data [default=%default]") + + (options, args) = parser.parse_args () + if len(args) != 1: + parser.print_help() + raise SystemExit, 1 + filename = args[0] + + dc = draw_fft(filename, options) + +if __name__ == "__main__": + try: + main() + except KeyboardInterrupt: + pass + + + diff --git a/gr-utils/src/python/gr_plot_short.py b/gr-utils/src/python/gr_plot_short.py new file mode 100755 index 00000000..3466e0b7 --- /dev/null +++ b/gr-utils/src/python/gr_plot_short.py @@ -0,0 +1,58 @@ +#!/usr/bin/env python +# +# Copyright 2007,2008 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio 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, or (at your option) +# any later version. +# +# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +try: + import scipy +except ImportError: + print "Please install SciPy to run this script (http://www.scipy.org/)" + raise SystemExit, 1 + +from optparse import OptionParser +from gnuradio.plot_data import plot_data + +def main(): + usage="%prog: [options] input_filenames" + description = "Takes a GNU Radio short integer binary file and displays the samples versus time. You can set the block size to specify how many points to read in at a time and the start position in the file. By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples." + + parser = OptionParser(conflict_handler="resolve", usage=usage, description=description) + parser.add_option("-B", "--block", type="int", default=1000, + help="Specify the block size [default=%default]") + parser.add_option("-s", "--start", type="int", default=0, + help="Specify where to start in the file [default=%default]") + parser.add_option("-R", "--sample-rate", type="float", default=1.0, + help="Set the sampler rate of the data [default=%default]") + + (options, args) = parser.parse_args () + if len(args) < 1: + parser.print_help() + raise SystemExit, 1 + filenames = args + + datatype=scipy.int16 + dc = plot_data(datatype, filenames, options) + +if __name__ == "__main__": + try: + main() + except KeyboardInterrupt: + pass + diff --git a/gr-utils/src/python/plot_data.py b/gr-utils/src/python/plot_data.py new file mode 100644 index 00000000..7c79e171 --- /dev/null +++ b/gr-utils/src/python/plot_data.py @@ -0,0 +1,168 @@ +# +# Copyright 2007,2008 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio 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, or (at your option) +# any later version. +# +# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +try: + import scipy +except ImportError: + print "Please install SciPy to run this script (http://www.scipy.org/)" + raise SystemExit, 1 + +try: + from pylab import * +except ImportError: + print "Please install Matplotlib to run this script (http://matplotlib.sourceforge.net/)" + raise SystemExit, 1 + +from optparse import OptionParser + +matplotlib.interactive(True) +matplotlib.use('TkAgg') + +class plot_data: + def __init__(self, datatype, filenames, options): + self.hfile = list() + self.legend_text = list() + for f in filenames: + self.hfile.append(open(f, "r")) + self.legend_text.append(f) + + self.block_length = options.block + self.start = options.start + self.sample_rate = options.sample_rate + + self.datatype = datatype + self.sizeof_data = datatype().nbytes # number of bytes per sample in file + + self.axis_font_size = 16 + self.label_font_size = 18 + self.title_font_size = 20 + self.text_size = 22 + + # Setup PLOT + self.fig = figure(1, figsize=(16, 9), facecolor='w') + rcParams['xtick.labelsize'] = self.axis_font_size + rcParams['ytick.labelsize'] = self.axis_font_size + + self.text_file_pos = figtext(0.10, 0.88, "File Position: ", weight="heavy", size=self.text_size) + self.text_block = figtext(0.40, 0.88, ("Block Size: %d" % self.block_length), + weight="heavy", size=self.text_size) + self.text_sr = figtext(0.60, 0.88, ("Sample Rate: %.2f" % self.sample_rate), + weight="heavy", size=self.text_size) + self.make_plots() + + self.button_left_axes = self.fig.add_axes([0.45, 0.01, 0.05, 0.05], frameon=True) + self.button_left = Button(self.button_left_axes, "<") + self.button_left_callback = self.button_left.on_clicked(self.button_left_click) + + self.button_right_axes = self.fig.add_axes([0.50, 0.01, 0.05, 0.05], frameon=True) + self.button_right = Button(self.button_right_axes, ">") + self.button_right_callback = self.button_right.on_clicked(self.button_right_click) + + self.xlim = self.sp_f.get_xlim() + + self.manager = get_current_fig_manager() + connect('key_press_event', self.click) + show() + + def get_data(self, hfile): + self.text_file_pos.set_text("File Position: %d" % (hfile.tell()//self.sizeof_data)) + f = scipy.fromfile(hfile, dtype=self.datatype, count=self.block_length) + #print "Read in %d items" % len(self.f) + if(len(f) == 0): + print "End of File" + else: + self.f = f + self.time = [i*(1/self.sample_rate) for i in range(len(self.f))] + + def make_plots(self): + self.sp_f = self.fig.add_subplot(2,1,1, position=[0.075, 0.2, 0.875, 0.6]) + self.sp_f.set_title(("Amplitude"), fontsize=self.title_font_size, fontweight="bold") + self.sp_f.set_xlabel("Time (s)", fontsize=self.label_font_size, fontweight="bold") + self.sp_f.set_ylabel("Amplitude (V)", fontsize=self.label_font_size, fontweight="bold") + self.plot_f = list() + + maxval = -1e12 + minval = 1e12 + + for hf in self.hfile: + # if specified on the command-line, set file pointer + hf.seek(self.sizeof_data*self.start, 1) + + self.get_data(hf) + + # Subplot for real and imaginary parts of signal + self.plot_f += plot(self.time, self.f, 'o-') + maxval = max(maxval, max(self.f)) + minval = min(minval, min(self.f)) + + self.sp_f.set_ylim([1.5*minval, 1.5*maxval]) + + self.leg = self.sp_f.legend(self.plot_f, self.legend_text) + + draw() + + def update_plots(self): + maxval = -1e12 + minval = 1e12 + for hf,p in zip(self.hfile,self.plot_f): + self.get_data(hf) + p.set_data([self.time, self.f]) + maxval = max(maxval, max(self.f)) + minval = min(minval, min(self.f)) + + self.sp_f.set_ylim([1.5*minval, 1.5*maxval]) + + draw() + + def click(self, event): + forward_valid_keys = [" ", "down", "right"] + backward_valid_keys = ["up", "left"] + + if(find(event.key, forward_valid_keys)): + self.step_forward() + + elif(find(event.key, backward_valid_keys)): + self.step_backward() + + def button_left_click(self, event): + self.step_backward() + + def button_right_click(self, event): + self.step_forward() + + def step_forward(self): + self.update_plots() + + def step_backward(self): + for hf in self.hfile: + # Step back in file position + if(hf.tell() >= 2*self.sizeof_data*self.block_length ): + hf.seek(-2*self.sizeof_data*self.block_length, 1) + else: + hf.seek(-hf.tell(),1) + self.update_plots() + + +def find(item_in, list_search): + try: + return list_search.index(item_in) != None + except ValueError: + return False