1 files changed, 166 insertions, 0 deletions
diff --git a/gr-qtgui/apps/gr_time_plot_f b/gr-qtgui/apps/gr_time_plot_f
new file mode 100755
index 0000000000..e4f4b8d436
--- /dev/null
+++ b/gr-qtgui/apps/gr_time_plot_f
@@ -0,0 +1,166 @@
+#!/usr/bin/env python
+#
+# Copyright 2012 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.
+#
+
+from gnuradio import gr
+from gnuradio.eng_option import eng_option
+from optparse import OptionParser
+import os, sys
+
+try:
+    from gnuradio import qtgui
+    from PyQt4 import QtGui, QtCore
+    import sip
+except ImportError:
+    print "Error: Program requires PyQt4 and gr-qtgui."
+    sys.exit(1)
+
+try:
+    import scipy
+except ImportError:
+    print "Error: Scipy required (www.scipy.org)."
+    sys.exit(1)
+
+try:
+    from gnuradio.qtgui.plot_form import *
+except ImportError:
+    from plot_form import *
+
+def read_samples(filename, start, in_size):
+    # Read in_size number of samples from file
+    fhandle = open(filename, 'r')
+    fhandle.seek(start*gr.sizeof_float, 0)
+    data = scipy.fromfile(fhandle, dtype=scipy.float32, count=in_size)
+    data = data.tolist()
+    fhandle.close()
+
+    if(len(data) < in_size):
+        print "Warning: read in {0} samples but asked for {1} samples.".format(
+            len(data), in_size)
+
+    return data
+
+class gr_time_plot_f(gr.top_block):
+    def __init__(self, filelist, samp_rate, start, nsamples, max_nsamples):
+        gr.top_block.__init__(self)
+
+        self._filelist = filelist
+        self._samp_rate = samp_rate
+        self._start = start
+        self._max_nsamps = max_nsamples
+        self._nsigs = len(self._filelist)
+
+        if(nsamples is None):
+            self._nsamps = max_nsamples
+        else:
+            self._nsamps = nsamples
+
+        self.qapp = QtGui.QApplication(sys.argv)
+
+        self.skip = gr.skiphead(gr.sizeof_float, self._start)
+        self.gui_snk = qtgui.time_sink_f(self._nsamps, self._samp_rate,
+                                         "GNU Radio Time Plot", self._nsigs)
+        n = 0
+        self.srcs = list()
+        for f in filelist:
+            data = read_samples(f, self._start, self._nsamps)
+            self.srcs.append(gr.vector_source_f(data))
+
+            # Set default labels based on file names
+            fname = f.split("/")[-1]
+            self.gui_snk.set_line_label(n, "{0}".format(fname))
+            n += 1
+
+        self.connect(self.srcs[0], self.skip)
+        self.connect(self.skip, (self.gui_snk, 0))
+
+        for i,s in enumerate(self.srcs[1:]):
+            self.connect(s, (self.gui_snk, i+1))
+
+        self.gui_snk.set_update_time(0);
+
+        # Get Python Qt references
+        pyQt  = self.gui_snk.pyqwidget()
+        self.pyWin = sip.wrapinstance(pyQt, QtGui.QWidget)
+
+    def get_gui(self):
+        return self.pyWin
+
+    def reset(self, newstart, newnsamps):
+        self.stop()
+        self.wait()
+
+        self._start = newstart
+
+        for s,f in zip(self.srcs, self._filelist):
+            data = read_samples(f, self._start, newnsamps)
+            s.set_data(data)
+            if(len(data) < newnsamps):
+                newnsamps = len(data)
+
+        self._nsamps = newnsamps
+        self.gui_snk.set_nsamps(self._nsamps)
+
+        self.start()
+
+def main():
+    description = "Plots a list of files on a scope plot. Files are a binary list of floats."
+    parser = OptionParser(option_class=eng_option, description=description,
+                          conflict_handler="resolve")
+    parser.add_option("-N", "--nsamples", type="int", default=None,
+                      help="Set the number of samples to display [default=prints entire file]")
+    parser.add_option("-S", "--start", type="int", default=0,
+                      help="Starting sample number [default=%default]")
+    parser.add_option("-r", "--sample-rate", type="eng_float", default=1.0,
+                      help="Set the sample rate of the signal [default=%default]")
+    (options, args) = parser.parse_args()
+
+    if(len(args) < 1):
+        parser.print_help()
+        sys.exit(0)
+
+    filelist = list(args)
+
+    nsamples = options.nsamples
+
+    # Find the smallest number of samples in all files and use that as
+    # a maximum value possible.
+    filesizes = []
+    for f in filelist:
+        if(os.path.exists(f)):
+            filesizes.append(os.path.getsize(f) / gr.sizeof_float)
+    max_nsamples = min(filesizes)
+
+    tb = gr_time_plot_f(filelist, options.sample_rate,
+                        options.start, nsamples, max_nsamples);
+
+    main_box = dialog_box(tb, 'GNU Radio Time Plot')
+    main_box.show()
+
+    tb.run()
+    tb.qapp.exec_()
+
+if __name__ == "__main__":
+    try:
+        main()
+    except KeyboardInterrupt:
+        pass
+