git.gag.com Git - debian/gnuradio/blob - gr-utils/src/python/gr_plot_qt.py

   1 #!/usr/bin/env python
   2
   3 try:
   4     import scipy
   5     from scipy import fftpack
   6 except ImportError:
   7     print "Please install SciPy to run this script (http://www.scipy.org/)"
   8     raise SystemExit, 1
   9
  10 try:
  11     from matplotlib import mlab
  12 except ImportError:
  13     print "Please install Matplotlib to run this script (http://matplotlib.sourceforge.net)"
  14     raise SystemExit, 1
  15
  16 try:
  17     from PyQt4 import Qt, QtCore, QtGui
  18 except ImportError:
  19     print "Please install PyQt4 to run this script (http://www.riverbankcomputing.co.uk/software/pyqt/download)"
  20     raise SystemExit, 1
  21
  22 try:
  23     import PyQt4.Qwt5 as Qwt
  24 except ImportError:
  25     print "Please install PyQwt5 to run this script (http://pyqwt.sourceforge.net/)"
  26     raise SystemExit, 1
  27
  28 try:
  29     # FIXME: reenable this before committing
  30     #from gnuradio.pyqt_plot import Ui_MainWindow
  31     from pyqt_plot import Ui_MainWindow
  32 except ImportError:
  33     print "Could not import from pyqt_plot. Please build with \"pyuic4 pyqt_plot.ui -o pyqt_plot.py\""
  34     raise SystemExit, 1
  35
  36 import sys, os
  37 from optparse import OptionParser
  38 from gnuradio import eng_notation
  39
  40
  41 class SpectrogramData(Qwt.QwtRasterData):
  42
  43     def __init__(self, f, t):
  44         Qwt.QwtArrayData.__init__(self, Qt.QRectF(0, 0, 0, 0))
  45         self.sp = scipy.array([[0], [0]])
  46
  47     def set_data(self, xfreq, ytime, data):
  48         self.sp = data
  49         self.freq = xfreq
  50         self.time = ytime
  51         boundingBox = Qt.QRectF(self.freq.min(), self.time.min(),
  52                                 self.freq.max() - self.freq.min(),
  53                                 self.time.max() - self.time.min())
  54         self.setBoundingRect(boundingBox)
  55
  56     def rasterHint(self, rect):
  57         return Qt.QSize(self.sp.shape[0], self.sp.shape[1])
  58
  59     def copy(self):
  60         return self
  61
  62     def range(self):
  63
  64         return Qwt.QwtDoubleInterval(self.sp.min(), self.sp.max())
  65
  66     def value(self, x, y):
  67         f = int(self.freq.searchsorted(x))
  68         t = int(self.time.searchsorted(y))
  69         return self.sp[f][t-1]
  70
  71
  72 class gr_plot_qt(QtGui.QMainWindow):
  73     def __init__(self, qapp, filename, options, parent=None):
  74         QtGui.QWidget.__init__(self, parent)
  75         self.gui = Ui_MainWindow()
  76         self.gui.setupUi(self)
  77
  78         self.filename = None
  79         self.block_length = options.block_length
  80         self.start = options.start
  81         self.sample_rate = options.sample_rate
  82         self.psdfftsize = options.psd_size
  83         self.specfftsize = options.spec_size
  84         self.winfunc = scipy.blackman
  85         self.sizeof_data = 8
  86         self.datatype = scipy.complex64
  87         self.iq = list()
  88         self.time = list()
  89
  90         # Set up basic plot attributes
  91         self.gui.timePlot.setAxisTitle(self.gui.timePlot.xBottom, "Time (sec)")
  92         self.gui.timePlot.setAxisTitle(self.gui.timePlot.yLeft, "Amplitude (V)")
  93         self.gui.freqPlot.setAxisTitle(self.gui.freqPlot.xBottom, "Frequency (Hz)")
  94         self.gui.freqPlot.setAxisTitle(self.gui.freqPlot.yLeft, "Magnitude (dB)")
  95         self.gui.specPlot.setAxisTitle(self.gui.specPlot.xBottom, "Frequency (Hz)")
  96         self.gui.specPlot.setAxisTitle(self.gui.specPlot.yLeft, "Time (sec)")
  97
  98         # Set up FFT size combo box
  99         self.fftsizes = ["128", "256", "512", "1024", "2048",
 100                          "4096", "8192", "16384", "32768"]
 101         self.gui.psdFFTComboBox.addItems(self.fftsizes)
 102         self.gui.specFFTComboBox.addItems(self.fftsizes)
 103         pos = self.gui.psdFFTComboBox.findText(Qt.QString("%1").arg(self.psdfftsize))
 104         self.gui.psdFFTComboBox.setCurrentIndex(pos)
 105         pos = self.gui.specFFTComboBox.findText(Qt.QString("%1").arg(self.specfftsize))
 106         self.gui.specFFTComboBox.setCurrentIndex(pos)
 107
 108         self.connect(self.gui.psdFFTComboBox,
 109                      Qt.SIGNAL("activated (const QString&)"),
 110                      self.psdFFTComboBoxEdit)
 111         self.connect(self.gui.specFFTComboBox,
 112                      Qt.SIGNAL("activated (const QString&)"),
 113                      self.specFFTComboBoxEdit)
 114
 115         # Set up color scheme box
 116         self.color_modes = {"Black on White" : self.color_black_on_white,
 117                             "White on Black" : self.color_white_on_black,
 118                             "Blue on Black"  : self.color_blue_on_black,
 119                             "Green on Black" : self.color_green_on_black}
 120         self.gui.colorComboBox.addItems(self.color_modes.keys())
 121         pos = self.gui.colorComboBox.findText("Blue on Black")
 122         self.gui.colorComboBox.setCurrentIndex(pos)
 123         self.connect(self.gui.colorComboBox,
 124                      Qt.SIGNAL("activated (const QString&)"),
 125                      self.colorComboBoxEdit)
 126
 127
 128         # Create zoom functionality for the plots
 129         self.timeZoomer = Qwt.QwtPlotZoomer(self.gui.timePlot.xBottom,
 130                                             self.gui.timePlot.yLeft,
 131                                             Qwt.QwtPicker.PointSelection,
 132                                             Qwt.QwtPicker.AlwaysOn,
 133                                             self.gui.timePlot.canvas())
 134
 135         self.freqZoomer = Qwt.QwtPlotZoomer(self.gui.freqPlot.xBottom,
 136                                             self.gui.freqPlot.yLeft,
 137                                             Qwt.QwtPicker.PointSelection,
 138                                             Qwt.QwtPicker.AlwaysOn,
 139                                             self.gui.freqPlot.canvas())
 140
 141         self.specZoomer = Qwt.QwtPlotZoomer(self.gui.specPlot.xBottom,
 142                                             self.gui.specPlot.yLeft,
 143                                             Qwt.QwtPicker.PointSelection,
 144                                             Qwt.QwtPicker.AlwaysOn,
 145                                             self.gui.specPlot.canvas())
 146
 147         # Set up action when tab is changed
 148         self.connect(self.gui.tabGroup,
 149                      Qt.SIGNAL("currentChanged (int)"),
 150                      self.tabChanged)
 151
 152         # Add a legend to the Time plot
 153         legend_real = Qwt.QwtLegend()
 154         self.gui.timePlot.insertLegend(legend_real)
 155
 156         # Set up slider
 157         self.gui.plotHBar.setSingleStep(1)
 158         self.gui.plotHBar.setPageStep(self.block_length)
 159         self.gui.plotHBar.setMinimum(0)
 160         self.gui.plotHBar.setMaximum(self.block_length)
 161         self.connect(self.gui.plotHBar,
 162                      Qt.SIGNAL("valueChanged(int)"),
 163                      self.sliderMoved)
 164
 165         # Connect Open action to Open Dialog box
 166         self.connect(self.gui.action_open,
 167                      Qt.SIGNAL("activated()"),
 168                      self.open_file)
 169
 170         # Connect Reload action to reload the file
 171         self.connect(self.gui.action_reload,
 172                      Qt.SIGNAL("activated()"),
 173                      self.reload_file)
 174         self.gui.action_reload.setShortcut(QtGui.QApplication.translate("MainWindow", "Ctrl+R",
 175                                                                         None, QtGui.QApplication.UnicodeUTF8))
 176
 177         # Set up file position boxes to update current figure
 178         self.connect(self.gui.filePosStartLineEdit,
 179                      Qt.SIGNAL("editingFinished()"),
 180                      self.file_position_changed)
 181         self.connect(self.gui.filePosStopLineEdit,
 182                      Qt.SIGNAL("editingFinished()"),
 183                      self.file_position_changed)
 184         self.connect(self.gui.filePosLengthLineEdit,
 185                      Qt.SIGNAL("editingFinished()"),
 186                      self.file_length_changed)
 187
 188         self.connect(self.gui.fileTimeStartLineEdit,
 189                      Qt.SIGNAL("editingFinished()"),
 190                      self.file_time_changed)
 191         self.connect(self.gui.fileTimeStopLineEdit,
 192                      Qt.SIGNAL("editingFinished()"),
 193                      self.file_time_changed)
 194         self.connect(self.gui.fileTimeLengthLineEdit,
 195                      Qt.SIGNAL("editingFinished()"),
 196                      self.file_time_length_changed)
 197
 198         self.rcurve = Qwt.QwtPlotCurve("Real")
 199         self.icurve = Qwt.QwtPlotCurve("Imaginary")
 200
 201         self.icurve.attach(self.gui.timePlot)
 202         self.rcurve.attach(self.gui.timePlot)
 203
 204         self.psdcurve = Qwt.QwtPlotCurve("PSD")
 205         self.psdcurve.attach(self.gui.freqPlot)
 206
 207
 208         # Set up specTab plot as a spectrogram
 209         self.specdata = SpectrogramData(range(0, 10), range(0, 10))
 210
 211         colorMap = Qwt.QwtLinearColorMap(Qt.Qt.darkCyan, Qt.Qt.red)
 212         colorMap.addColorStop(0.1, Qt.Qt.cyan)
 213         colorMap.addColorStop(0.6, Qt.Qt.green)
 214         colorMap.addColorStop(0.95, Qt.Qt.yellow)
 215
 216         self.spec = Qwt.QwtPlotSpectrogram()
 217         self.spec.setColorMap(colorMap)
 218         self.spec.attach(self.gui.specPlot)
 219         self.spec.setDisplayMode(Qwt.QwtPlotSpectrogram.ImageMode, True)
 220         self.spec.setData(self.specdata)
 221
 222         self.rightAxis = self.gui.specPlot.axisWidget(Qwt.QwtPlot.yRight)
 223         self.rightAxis.setTitle("Magnitude (dBm)")
 224         self.rightAxis.setColorBarEnabled(True)
 225         self.rightAxis.setColorMap(self.spec.data().range(),
 226                                    self.spec.colorMap())
 227         self.gui.specPlot.enableAxis(Qwt.QwtPlot.yRight)
 228
 229         # Set up initial color scheme
 230         self.color_modes["Blue on Black"]()
 231
 232         # Connect a signal for when the sample rate changes
 233         self.set_sample_rate(self.sample_rate)
 234         self.connect(self.gui.sampleRateLineEdit,
 235                      Qt.SIGNAL("editingFinished()"),
 236                      self.sample_rate_changed)
 237
 238         if(filename is not None):
 239             self.initialize(filename)
 240
 241         self.show()
 242
 243     def open_file(self):
 244         filename = Qt.QFileDialog.getOpenFileName(self, "Open", ".")
 245         if(filename != ""):
 246             #print filename
 247             self.initialize(filename)
 248
 249     def reload_file(self):
 250         if(self.filename):
 251             self.initialize(self.filename)
 252
 253     def initialize(self, filename):
 254         self.filename = filename
 255         self.hfile = open(filename, "r")
 256
 257         self.setWindowTitle(("GNU Radio File Plot Utility: %s" % filename))
 258
 259         self.gui.filePosStartLineEdit.setText("0")
 260         self.gui.filePosStopLineEdit.setText("0")
 261         self.gui.fileTimeStartLineEdit.setText("0")
 262         self.gui.fileTimeStopLineEdit.setText("0")
 263
 264         self.cur_start = 0
 265         self.cur_stop = self.block_length
 266
 267         self.init_data_input()
 268         self.get_data(self.cur_start, self.cur_stop)
 269         self.get_psd()
 270         self.get_specgram()
 271         self.gui.plotHBar.setSliderPosition(0)
 272         self.gui.plotHBar.setMaximum(self.signal_size)
 273
 274
 275         self.update_time_curves()
 276         self.update_psd_curves()
 277         self.update_specgram_curves()
 278
 279     def init_data_input(self):
 280         self.hfile.seek(0, os.SEEK_END)
 281         self.signal_size = self.hfile.tell()/self.sizeof_data
 282         #print "Sizeof File: ", self.signal_size
 283         self.hfile.seek(0, os.SEEK_SET)
 284
 285     def get_data(self, start, end):
 286         if(end > start):
 287             self.hfile.seek(start*self.sizeof_data, os.SEEK_SET)
 288             self.position = start
 289             try:
 290                 iq = scipy.fromfile(self.hfile, dtype=self.datatype,
 291                                     count=end-start)
 292
 293                 if(len(iq) < (end-start)):
 294                     end = len(iq)
 295                     self.gui.filePosLengthLineEdit.setText(Qt.QString("%1").arg(end))
 296                     self.gui.plotHBar.setMaximum(end)
 297                     self.gui.plotHBar.setSingleStep(end)
 298                     self.file_length_changed()
 299
 300                 tstep = 1.0 / self.sample_rate
 301                 self.iq = iq
 302                 self.time = [tstep*(self.position + i) for i in xrange(len(self.iq))]
 303
 304                 self.set_file_pos_box(start, end)
 305             except MemoryError:
 306                 pass
 307         else:
 308             # Do we want to do anything about this?
 309             pass
 310
 311     def get_psd(self):
 312         winpoints = self.winfunc(self.psdfftsize)
 313         iq_psd, freq = mlab.psd(self.iq, Fs=self.sample_rate,
 314                                 NFFT=self.psdfftsize,
 315                                 noverlap=self.psdfftsize/4.0,
 316                                 window=winpoints,
 317                                 scale_by_freq=False)
 318
 319         self.iq_psd = 10.0*scipy.log10(abs(fftpack.fftshift(iq_psd)))
 320         self.freq = freq - self.sample_rate/2.0
 321
 322     def get_specgram(self):
 323         winpoints = self.winfunc(self.specfftsize)
 324         iq_spec, f, t = mlab.specgram(self.iq, Fs=self.sample_rate,
 325                                       NFFT=self.specfftsize,
 326                                       noverlap=self.specfftsize/4.0,
 327                                       window=winpoints,
 328                                       scale_by_freq=False)
 329
 330         self.iq_spec = 10.0*scipy.log10(abs(iq_spec))
 331         self.spec_f = f
 332         self.spec_t = t
 333
 334     def psdFFTComboBoxEdit(self, fftSize):
 335         self.psdfftsize = fftSize.toInt()[0]
 336         self.get_psd()
 337         self.update_psd_curves()
 338
 339     def specFFTComboBoxEdit(self, fftSize):
 340         self.specfftsize = fftSize.toInt()[0]
 341         self.get_specgram()
 342         self.update_specgram_curves()
 343
 344     def colorComboBoxEdit(self, colorSelection):
 345         colorstr = str(colorSelection.toAscii())
 346         color_func = self.color_modes[colorstr]
 347         color_func()
 348
 349     def sliderMoved(self, value):
 350         pos_start = value
 351         pos_end = value + self.gui.plotHBar.pageStep()
 352
 353         self.get_data(pos_start, pos_end)
 354         self.get_psd()
 355         self.get_specgram()
 356         self.update_time_curves()
 357         self.update_psd_curves()
 358         self.update_specgram_curves()
 359
 360     def set_sample_rate(self, sr):
 361         self.sample_rate = sr
 362         srstr = eng_notation.num_to_str(self.sample_rate)
 363         self.gui.sampleRateLineEdit.setText(Qt.QString("%1").arg(srstr))
 364
 365     def sample_rate_changed(self):
 366         srstr = self.gui.sampleRateLineEdit.text().toAscii()
 367         self.sample_rate = eng_notation.str_to_num(srstr)
 368         self.set_file_pos_box(self.cur_start, self.cur_stop)
 369         self.get_data(self.cur_start, self.cur_stop)
 370         self.get_psd()
 371         self.get_specgram()
 372         self.update_time_curves()
 373         self.update_psd_curves()
 374         self.update_specgram_curves()
 375
 376     def set_file_pos_box(self, start, end):
 377         tstart = start / self.sample_rate
 378         tend = end / self.sample_rate
 379
 380         self.gui.filePosStartLineEdit.setText(Qt.QString("%1").arg(start))
 381         self.gui.filePosStopLineEdit.setText(Qt.QString("%1").arg(end))
 382         self.gui.filePosLengthLineEdit.setText(Qt.QString("%1").arg(end-start))
 383
 384         self.gui.fileTimeStartLineEdit.setText(Qt.QString("%1").arg(tstart))
 385         self.gui.fileTimeStopLineEdit.setText(Qt.QString("%1").arg(tend))
 386         self.gui.fileTimeLengthLineEdit.setText(Qt.QString("%1").arg(tend-tstart))
 387
 388     def file_position_changed(self):
 389         start  = self.gui.filePosStartLineEdit.text().toInt()
 390         end    = self.gui.filePosStopLineEdit.text().toInt()
 391         if((start[1] == True) and (end[1] == True)):
 392             self.cur_start = start[0]
 393             self.cur_stop = end[0]
 394
 395             tstart = self.cur_start / self.sample_rate
 396             tend = self.cur_stop / self.sample_rate
 397             self.gui.fileTimeStartLineEdit.setText(Qt.QString("%1").arg(tstart))
 398             self.gui.fileTimeStopLineEdit.setText(Qt.QString("%1").arg(tend))
 399
 400             self.get_data(self.cur_start, self.cur_stop)
 401
 402             self.update_time_curves()
 403             self.update_psd_curves()
 404             self.update_specgram_curves()
 405
 406         # If there's a non-digit character, reset box
 407         else:
 408             self.set_file_pos_box(self.cur_start, self.cur_stop)
 409
 410     def file_time_changed(self):
 411         tstart = self.gui.fileTimeStartLineEdit.text().toDouble()
 412         tstop  = self.gui.fileTimeStopLineEdit.text().toDouble()
 413         if((tstart[1] == True) and (tstop[1] == True)):
 414             self.cur_start = int(tstart[0] * self.sample_rate)
 415             self.cur_stop = int(tstop[0] * self.sample_rate)
 416             self.get_data(self.cur_start, self.cur_stop)
 417
 418             self.gui.filePosStartLineEdit.setText(Qt.QString("%1").arg(self.cur_start))
 419             self.gui.filePosStopLineEdit.setText(Qt.QString("%1").arg(self.cur_stop))
 420
 421             self.update_time_curves()
 422             self.update_psd_curves()
 423             self.update_specgram_curves()
 424         # If there's a non-digit character, reset box
 425         else:
 426             self.set_file_pos_box(self.cur_start, self.cur_stop)
 427
 428     def file_length_changed(self):
 429         start = self.gui.filePosStartLineEdit.text().toInt()
 430         length = self.gui.filePosLengthLineEdit.text().toInt()
 431
 432         if((start[1] == True) and (length[1] == True)):
 433             self.cur_start = start[0]
 434             self.block_length = length[0]
 435             self.cur_stop = self.cur_start + self.block_length
 436
 437             tstart = self.cur_start / self.sample_rate
 438             tend = self.cur_stop / self.sample_rate
 439             tlen = self.block_length / self.sample_rate
 440             self.gui.fileTimeStartLineEdit.setText(Qt.QString("%1").arg(tstart))
 441             self.gui.fileTimeStopLineEdit.setText(Qt.QString("%1").arg(tend))
 442             self.gui.fileTimeLengthLineEdit.setText(Qt.QString("%1").arg(tlen))
 443
 444             self.gui.plotHBar.setPageStep(self.block_length)
 445
 446             self.get_data(self.cur_start, self.cur_stop)
 447             self.get_psd()
 448             self.get_specgram()
 449
 450             self.update_time_curves()
 451             self.update_psd_curves()
 452             self.update_specgram_curves()
 453         # If there's a non-digit character, reset box
 454         else:
 455             self.set_file_pos_box(self.cur_start, self.cur_stop)
 456
 457     def file_time_length_changed(self):
 458         tstart = self.gui.fileTimeStartLineEdit.text().toDouble()
 459         tlength = self.gui.fileTimeLengthLineEdit.text().toDouble()
 460         if((tstart[1] == True) and (tlength[1] == True)):
 461             self.cur_start = int(tstart[0] * self.sample_rate)
 462             self.block_length = int(tlength[0] * self.sample_rate)
 463             self.cur_stop = self.cur_start + self.block_length
 464
 465             tstart = self.cur_start / self.sample_rate
 466             tend = self.cur_stop / self.sample_rate
 467             tlen = self.block_length / self.sample_rate
 468             self.gui.fileTimeStartLineEdit.setText(Qt.QString("%1").arg(tstart))
 469             self.gui.fileTimeStopLineEdit.setText(Qt.QString("%1").arg(tend))
 470             self.gui.fileTimeLengthLineEdit.setText(Qt.QString("%1").arg(tlen))
 471
 472             self.get_data(self.cur_start, self.cur_stop)
 473             self.get_psd()
 474             self.get_specgram()
 475
 476             self.update_time_curves()
 477             self.update_psd_curves()
 478             self.update_specgram_curves()
 479         # If there's a non-digit character, reset box
 480         else:
 481             self.set_file_pos_box(self.cur_start, self.cur_stop)
 482
 483
 484     def update_time_curves(self):
 485         self.icurve.setData(self.time, self.iq.imag)
 486         self.rcurve.setData(self.time, self.iq.real)
 487
 488         # Reset the x-axis to the new time scale
 489         iqmax = 1.5 * max(max(self.iq.real), max(self.iq.imag))
 490         iqmin = 1.5 * min(min(self.iq.real), min(self.iq.imag))
 491         self.gui.timePlot.setAxisScale(self.gui.timePlot.xBottom,
 492                                        min(self.time),
 493                                        max(self.time))
 494         self.gui.timePlot.setAxisScale(self.gui.timePlot.yLeft,
 495                                        iqmin,
 496                                        iqmax)
 497
 498         # Set the zoomer base to unzoom to the new axis
 499         self.timeZoomer.setZoomBase()
 500
 501         self.gui.timePlot.replot()
 502
 503     def update_psd_curves(self):
 504         self.psdcurve.setData(self.freq, self.iq_psd)
 505
 506         self.gui.freqPlot.setAxisScale(self.gui.freqPlot.xBottom,
 507                                        min(self.freq),
 508                                        max(self.freq))
 509
 510         # Set the zoomer base to unzoom to the new axis
 511         self.freqZoomer.setZoomBase()
 512
 513         self.gui.freqPlot.replot()
 514
 515     def update_specgram_curves(self):
 516         # We don't have to reset the data for the speccurve here
 517         # since this is taken care of in the SpectrogramData class
 518         self.specdata.set_data(self.spec_f, self.spec_t, self.iq_spec)
 519
 520         # Set the color map based on the new data
 521         self.rightAxis.setColorMap(self.spec.data().range(),
 522                                    self.spec.colorMap())
 523
 524         # Set the new axis base; include right axis for the intenisty color bar
 525         self.gui.specPlot.setAxisScale(self.gui.specPlot.xBottom,
 526                                        min(self.spec_f),
 527                                        max(self.spec_f))
 528         self.gui.specPlot.setAxisScale(self.gui.specPlot.yLeft,
 529                                        min(self.spec_t),
 530                                        max(self.spec_t))
 531         self.gui.specPlot.setAxisScale(self.gui.specPlot.yRight,
 532                                        self.iq_spec.min(),
 533                                        self.iq_spec.max())
 534
 535         # Set the zoomer base to unzoom to the new axis
 536         self.specZoomer.setZoomBase()
 537
 538         self.gui.specPlot.replot()
 539
 540     def tabChanged(self, index):
 541         self.gui.timePlot.replot()
 542         self.gui.freqPlot.replot()
 543
 544     def color_black_on_white(self):
 545         blue = QtGui.qRgb(0x00, 0x00, 0xFF)
 546         red = QtGui.qRgb(0xFF, 0x00, 0x00)
 547
 548         blackBrush = Qt.QBrush(Qt.QColor("black"))
 549         blueBrush = Qt.QBrush(Qt.QColor(blue))
 550         redBrush = Qt.QBrush(Qt.QColor(red))
 551
 552         self.gui.timePlot.setCanvasBackground(Qt.QColor("white"))
 553         self.gui.freqPlot.setCanvasBackground(Qt.QColor("white"))
 554         self.timeZoomer.setTrackerPen(Qt.QPen(blackBrush, 2))
 555         self.timeZoomer.setRubberBandPen(Qt.QPen(blackBrush, 2))
 556         self.freqZoomer.setTrackerPen(Qt.QPen(blackBrush, 2))
 557         self.freqZoomer.setRubberBandPen(Qt.QPen(blackBrush, 2))
 558         self.psdcurve.setPen(Qt.QPen(blueBrush, 1))
 559         self.rcurve.setPen(Qt.QPen(blueBrush, 2))
 560         self.icurve.setPen(Qt.QPen(redBrush, 2))
 561
 562         self.gui.timePlot.replot()
 563         self.gui.freqPlot.replot()
 564
 565     def color_white_on_black(self):
 566         white = QtGui.qRgb(0xFF, 0xFF, 0xFF)
 567         red = QtGui.qRgb(0xFF, 0x00, 0x00)
 568
 569         whiteBrush = Qt.QBrush(Qt.QColor("white"))
 570         whiteBrush = Qt.QBrush(Qt.QColor(white))
 571         redBrush = Qt.QBrush(Qt.QColor(red))
 572
 573         self.gui.timePlot.setCanvasBackground(QtGui.QColor("black"))
 574         self.gui.freqPlot.setCanvasBackground(QtGui.QColor("black"))
 575         self.timeZoomer.setTrackerPen(Qt.QPen(whiteBrush, 2))
 576         self.timeZoomer.setRubberBandPen(Qt.QPen(whiteBrush, 2))
 577         self.freqZoomer.setTrackerPen(Qt.QPen(whiteBrush, 2))
 578         self.freqZoomer.setRubberBandPen(Qt.QPen(whiteBrush, 2))
 579         self.psdcurve.setPen(Qt.QPen(whiteBrush, 1))
 580         self.rcurve.setPen(Qt.QPen(whiteBrush, 2))
 581         self.icurve.setPen(Qt.QPen(redBrush, 2))
 582
 583         self.gui.timePlot.replot()
 584         self.gui.freqPlot.replot()
 585
 586
 587     def color_green_on_black(self):
 588         green = QtGui.qRgb(0x00, 0xFF, 0x00)
 589         red = QtGui.qRgb(0xFF, 0x00, 0x50)
 590
 591         whiteBrush = Qt.QBrush(Qt.QColor("white"))
 592         greenBrush = Qt.QBrush(Qt.QColor(green))
 593         redBrush = Qt.QBrush(Qt.QColor(red))
 594
 595         self.gui.timePlot.setCanvasBackground(QtGui.QColor("black"))
 596         self.gui.freqPlot.setCanvasBackground(QtGui.QColor("black"))
 597         self.timeZoomer.setTrackerPen(Qt.QPen(whiteBrush, 2))
 598         self.timeZoomer.setRubberBandPen(Qt.QPen(whiteBrush, 2))
 599         self.freqZoomer.setTrackerPen(Qt.QPen(whiteBrush, 2))
 600         self.freqZoomer.setRubberBandPen(Qt.QPen(whiteBrush, 2))
 601         self.psdcurve.setPen(Qt.QPen(greenBrush, 1))
 602         self.rcurve.setPen(Qt.QPen(greenBrush, 2))
 603         self.icurve.setPen(Qt.QPen(redBrush, 2))
 604
 605         self.gui.timePlot.replot()
 606         self.gui.freqPlot.replot()
 607
 608     def color_blue_on_black(self):
 609         blue = QtGui.qRgb(0x00, 0x00, 0xFF)
 610         red = QtGui.qRgb(0xFF, 0x00, 0x00)
 611
 612         whiteBrush = Qt.QBrush(Qt.QColor("white"))
 613         blueBrush = Qt.QBrush(Qt.QColor(blue))
 614         redBrush = Qt.QBrush(Qt.QColor(red))
 615
 616         self.gui.timePlot.setCanvasBackground(QtGui.QColor("black"))
 617         self.gui.freqPlot.setCanvasBackground(QtGui.QColor("black"))
 618         self.timeZoomer.setTrackerPen(Qt.QPen(whiteBrush, 2))
 619         self.timeZoomer.setRubberBandPen(Qt.QPen(whiteBrush, 2))
 620         self.freqZoomer.setTrackerPen(Qt.QPen(whiteBrush, 2))
 621         self.freqZoomer.setRubberBandPen(Qt.QPen(whiteBrush, 2))
 622         self.psdcurve.setPen(Qt.QPen(blueBrush, 1))
 623         self.rcurve.setPen(Qt.QPen(blueBrush, 2))
 624         self.icurve.setPen(Qt.QPen(redBrush, 2))
 625
 626         self.gui.timePlot.replot()
 627         self.gui.freqPlot.replot()
 628
 629 def setup_options():
 630     usage="%prog: [options] (input_filename)"
 631     description = ""
 632
 633     parser = OptionParser(conflict_handler="resolve", usage=usage, description=description)
 634     parser.add_option("-B", "--block-length", type="int", default=8192,
 635                       help="Specify the block size [default=%default]")
 636     parser.add_option("-s", "--start", type="int", default=0,
 637                       help="Specify where to start in the file [default=%default]")
 638     parser.add_option("-R", "--sample-rate", type="float", default=1.0,
 639                       help="Set the sampler rate of the data [default=%default]")
 640     parser.add_option("", "--psd-size", type="int", default=2048,
 641                       help="Set the size of the PSD FFT [default=%default]")
 642     parser.add_option("", "--spec-size", type="int", default=2048,
 643                       help="Set the size of the spectrogram FFT [default=%default]")
 644
 645     return parser
 646
 647 def main(args):
 648     parser = setup_options()
 649     (options, args) = parser.parse_args ()
 650
 651     if(len(args) == 1):
 652         filename = args[0]
 653     else:
 654         filename = None
 655
 656     app = Qt.QApplication(args)
 657     gplt = gr_plot_qt(app, filename, options)
 658     app.exec_()
 659
 660 if __name__ == '__main__':
 661     main(sys.argv)
 662