diff options
Diffstat (limited to 'gr-wxgui/src/python/fftsink2.py')
| -rw-r--r--[-rwxr-xr-x] | gr-wxgui/src/python/fftsink2.py | 608 |
1 files changed, 25 insertions, 583 deletions
diff --git a/gr-wxgui/src/python/fftsink2.py b/gr-wxgui/src/python/fftsink2.py index f4e9143f1..ad2a09c96 100755..100644 --- a/gr-wxgui/src/python/fftsink2.py +++ b/gr-wxgui/src/python/fftsink2.py @@ -1,603 +1,45 @@ -#!/usr/bin/env python # -# Copyright 2003,2004,2005,2006,2007 Free Software Foundation, Inc. -# +# Copyright 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. -# - -from gnuradio import gr, gru, window -from gnuradio.wxgui import stdgui2 -import wx -import plot -import numpy -import threading -import math - -DIV_LEVELS = (1, 2, 5, 10, 20) - -default_fftsink_size = (640,240) -default_fft_rate = gr.prefs().get_long('wxgui', 'fft_rate', 15) - -class fft_sink_base(object): - def __init__(self, input_is_real=False, baseband_freq=0, y_per_div=10, - y_divs=8, ref_level=50, - sample_rate=1, fft_size=512, - fft_rate=default_fft_rate, - average=False, avg_alpha=None, title='', peak_hold=False): - - # initialize common attributes - self.baseband_freq = baseband_freq - self.y_per_div=y_per_div - self.y_divs = y_divs - self.ref_level = ref_level - self.sample_rate = sample_rate - self.fft_size = fft_size - self.fft_rate = fft_rate - self.average = average - if avg_alpha is None: - self.avg_alpha = 2.0 / fft_rate - else: - self.avg_alpha = avg_alpha - self.title = title - self.peak_hold = peak_hold - self.input_is_real = input_is_real - self.msgq = gr.msg_queue(2) # queue that holds a maximum of 2 messages - - def set_y_per_div(self, y_per_div): - self.y_per_div = y_per_div - - def set_ref_level(self, ref_level): - self.ref_level = ref_level - - def set_average(self, average): - self.average = average - if average: - self.avg.set_taps(self.avg_alpha) - else: - self.avg.set_taps(1.0) - self.win.peak_vals = None - - def set_peak_hold(self, enable): - self.peak_hold = enable - self.win.set_peak_hold(enable) - - def set_avg_alpha(self, avg_alpha): - self.avg_alpha = avg_alpha - - def set_baseband_freq(self, baseband_freq): - self.baseband_freq = baseband_freq - - def set_sample_rate(self, sample_rate): - self.sample_rate = sample_rate - self._set_n() - - def _set_n(self): - self.one_in_n.set_n(max(1, int(self.sample_rate/self.fft_size/self.fft_rate))) - - -class fft_sink_f(gr.hier_block2, fft_sink_base): - def __init__(self, parent, baseband_freq=0, ref_scale=2.0, - y_per_div=10, y_divs=8, ref_level=50, sample_rate=1, fft_size=512, - fft_rate=default_fft_rate, average=False, avg_alpha=None, - title='', size=default_fftsink_size, peak_hold=False): - - gr.hier_block2.__init__(self, "fft_sink_f", - gr.io_signature(1, 1, gr.sizeof_float), - gr.io_signature(0,0,0)) - - fft_sink_base.__init__(self, input_is_real=True, baseband_freq=baseband_freq, - y_per_div=y_per_div, y_divs=y_divs, ref_level=ref_level, - sample_rate=sample_rate, fft_size=fft_size, - fft_rate=fft_rate, - average=average, avg_alpha=avg_alpha, title=title, - peak_hold=peak_hold) - - self.s2p = gr.stream_to_vector(gr.sizeof_float, self.fft_size) - self.one_in_n = gr.keep_one_in_n(gr.sizeof_float * self.fft_size, - max(1, int(self.sample_rate/self.fft_size/self.fft_rate))) - - mywindow = window.blackmanharris(self.fft_size) - self.fft = gr.fft_vfc(self.fft_size, True, mywindow) - power = 0 - for tap in mywindow: - power += tap*tap - - self.c2mag = gr.complex_to_mag(self.fft_size) - self.avg = gr.single_pole_iir_filter_ff(1.0, self.fft_size) - - # FIXME We need to add 3dB to all bins but the DC bin - self.log = gr.nlog10_ff(20, self.fft_size, - -10*math.log10(self.fft_size) # Adjust for number of bins - -10*math.log10(power/self.fft_size) # Adjust for windowing loss - -20*math.log10(ref_scale/2)) # Adjust for reference scale - - self.sink = gr.message_sink(gr.sizeof_float * self.fft_size, self.msgq, True) - self.connect(self, self.s2p, self.one_in_n, self.fft, self.c2mag, self.avg, self.log, self.sink) - - self.win = fft_window(self, parent, size=size) - self.set_average(self.average) - self.set_peak_hold(self.peak_hold) - -class fft_sink_c(gr.hier_block2, fft_sink_base): - def __init__(self, parent, baseband_freq=0, ref_scale=2.0, - y_per_div=10, y_divs=8, ref_level=50, sample_rate=1, fft_size=512, - fft_rate=default_fft_rate, average=False, avg_alpha=None, - title='', size=default_fftsink_size, peak_hold=False): - - gr.hier_block2.__init__(self, "fft_sink_c", - gr.io_signature(1, 1, gr.sizeof_gr_complex), - gr.io_signature(0,0,0)) - - fft_sink_base.__init__(self, input_is_real=False, baseband_freq=baseband_freq, - y_per_div=y_per_div, y_divs=y_divs, ref_level=ref_level, - sample_rate=sample_rate, fft_size=fft_size, - fft_rate=fft_rate, - average=average, avg_alpha=avg_alpha, title=title, - peak_hold=peak_hold) - - self.s2p = gr.stream_to_vector(gr.sizeof_gr_complex, self.fft_size) - self.one_in_n = gr.keep_one_in_n(gr.sizeof_gr_complex * self.fft_size, - max(1, int(self.sample_rate/self.fft_size/self.fft_rate))) - - mywindow = window.blackmanharris(self.fft_size) - self.fft = gr.fft_vcc(self.fft_size, True, mywindow) - power = 0 - for tap in mywindow: - power += tap*tap - - self.c2mag = gr.complex_to_mag(self.fft_size) - self.avg = gr.single_pole_iir_filter_ff(1.0, self.fft_size) - - # FIXME We need to add 3dB to all bins but the DC bin - self.log = gr.nlog10_ff(20, self.fft_size, - -10*math.log10(self.fft_size) # Adjust for number of bins - -10*math.log10(power/self.fft_size) # Adjust for windowing loss - -20*math.log10(ref_scale/2)) # Adjust for reference scale - - self.sink = gr.message_sink(gr.sizeof_float * self.fft_size, self.msgq, True) - self.connect(self, self.s2p, self.one_in_n, self.fft, self.c2mag, self.avg, self.log, self.sink) - - self.win = fft_window(self, parent, size=size) - self.set_average(self.average) - self.set_peak_hold(self.peak_hold) - - -# ------------------------------------------------------------------------ - -myDATA_EVENT = wx.NewEventType() -EVT_DATA_EVENT = wx.PyEventBinder (myDATA_EVENT, 0) - - -class DataEvent(wx.PyEvent): - def __init__(self, data): - wx.PyEvent.__init__(self) - self.SetEventType (myDATA_EVENT) - self.data = data - - def Clone (self): - self.__class__ (self.GetId()) - - -class input_watcher (threading.Thread): - def __init__ (self, msgq, fft_size, event_receiver, **kwds): - threading.Thread.__init__ (self, **kwds) - self.setDaemon (1) - self.msgq = msgq - self.fft_size = fft_size - self.event_receiver = event_receiver - self.keep_running = True - self.start () - - def run (self): - while (self.keep_running): - msg = self.msgq.delete_head() # blocking read of message queue - itemsize = int(msg.arg1()) - nitems = int(msg.arg2()) - - s = msg.to_string() # get the body of the msg as a string - - # There may be more than one FFT frame in the message. - # If so, we take only the last one - if nitems > 1: - start = itemsize * (nitems - 1) - s = s[start:start+itemsize] - - complex_data = numpy.fromstring (s, numpy.float32) - de = DataEvent (complex_data) - wx.PostEvent (self.event_receiver, de) - del de - -class control_panel(wx.Panel): - - class LabelText(wx.StaticText): - def __init__(self, window, label): - wx.StaticText.__init__(self, window, -1, label) - font = self.GetFont() - font.SetWeight(wx.FONTWEIGHT_BOLD) - font.SetUnderlined(True) - self.SetFont(font) - - def __init__(self, parent): - self.parent = parent - wx.Panel.__init__(self, parent, -1, style=wx.SIMPLE_BORDER) - control_box = wx.BoxSizer(wx.VERTICAL) - - #checkboxes for average and peak hold - control_box.AddStretchSpacer() - control_box.Add(self.LabelText(self, 'Options'), 0, wx.ALIGN_CENTER) - self.average_check_box = wx.CheckBox(parent=self, style=wx.CHK_2STATE, label="Average") - self.average_check_box.Bind(wx.EVT_CHECKBOX, parent.on_average) - control_box.Add(self.average_check_box, 0, wx.EXPAND) - self.peak_hold_check_box = wx.CheckBox(parent=self, style=wx.CHK_2STATE, label="Peak Hold") - self.peak_hold_check_box.Bind(wx.EVT_CHECKBOX, parent.on_peak_hold) - control_box.Add(self.peak_hold_check_box, 0, wx.EXPAND) - - #radio buttons for div size - control_box.AddStretchSpacer() - control_box.Add(self.LabelText(self, 'Set dB/div'), 0, wx.ALIGN_CENTER) - radio_box = wx.BoxSizer(wx.VERTICAL) - self.radio_buttons = list() - for y_per_div in DIV_LEVELS: - radio_button = wx.RadioButton(self, -1, "%d dB/div"%y_per_div) - radio_button.Bind(wx.EVT_RADIOBUTTON, self.on_radio_button_change) - self.radio_buttons.append(radio_button) - radio_box.Add(radio_button, 0, wx.ALIGN_LEFT) - control_box.Add(radio_box, 0, wx.EXPAND) - - #ref lvl buttons - control_box.AddStretchSpacer() - control_box.Add(self.LabelText(self, 'Adj Ref Lvl'), 0, wx.ALIGN_CENTER) - control_box.AddSpacer(2) - button_box = wx.BoxSizer(wx.HORIZONTAL) - self.ref_plus_button = wx.Button(self, -1, '+', style=wx.BU_EXACTFIT) - self.ref_plus_button.Bind(wx.EVT_BUTTON, parent.on_incr_ref_level) - button_box.Add(self.ref_plus_button, 0, wx.ALIGN_CENTER) - self.ref_minus_button = wx.Button(self, -1, ' - ', style=wx.BU_EXACTFIT) - self.ref_minus_button.Bind(wx.EVT_BUTTON, parent.on_decr_ref_level) - button_box.Add(self.ref_minus_button, 0, wx.ALIGN_CENTER) - control_box.Add(button_box, 0, wx.ALIGN_CENTER) - control_box.AddStretchSpacer() - #set sizer - self.SetSizerAndFit(control_box) - #update - self.update() - - def update(self): - """! - Read the state of the fft plot settings and update the control panel. - """ - #update checkboxes - self.average_check_box.SetValue(self.parent.fftsink.average) - self.peak_hold_check_box.SetValue(self.parent.fftsink.peak_hold) - #update radio buttons - try: - index = list(DIV_LEVELS).index(self.parent.fftsink.y_per_div) - self.radio_buttons[index].SetValue(True) - except: pass - - def on_radio_button_change(self, evt): - selected_radio_button = filter(lambda rb: rb.GetValue(), self.radio_buttons)[0] - index = self.radio_buttons.index(selected_radio_button) - self.parent.fftsink.set_y_per_div(DIV_LEVELS[index]) - -class fft_window (wx.Panel): - def __init__ (self, fftsink, parent, id = -1, - pos = wx.DefaultPosition, size = wx.DefaultSize, - style = wx.DEFAULT_FRAME_STYLE, name = ""): - - self.fftsink = fftsink - #init panel and plot - wx.Panel.__init__(self, parent, -1) - self.plot = plot.PlotCanvas(self, id, pos, size, style, name) - #setup the box with plot and controls - self.control_panel = control_panel(self) - main_box = wx.BoxSizer (wx.HORIZONTAL) - main_box.Add (self.plot, 1, wx.EXPAND) - main_box.Add (self.control_panel, 0, wx.EXPAND) - self.SetSizerAndFit(main_box) - - self.peak_hold = False - self.peak_vals = None - - self.plot.SetEnableGrid (True) - # self.SetEnableZoom (True) - # self.SetBackgroundColour ('black') - - self.build_popup_menu() - self.set_baseband_freq(0.0) - - EVT_DATA_EVENT (self, self.set_data) - wx.EVT_CLOSE (self, self.on_close_window) - self.plot.Bind(wx.EVT_RIGHT_UP, self.on_right_click) - self.plot.Bind(wx.EVT_MOTION, self.evt_motion) - - self.input_watcher = input_watcher(fftsink.msgq, fftsink.fft_size, self) - - def set_scale(self, freq): - x = max(abs(self.fftsink.sample_rate), abs(self.fftsink.baseband_freq)) - if x >= 1e9: - self._scale_factor = 1e-9 - self._units = "GHz" - self._format = "%3.6f" - elif x >= 1e6: - self._scale_factor = 1e-6 - self._units = "MHz" - self._format = "%3.3f" - else: - self._scale_factor = 1e-3 - self._units = "kHz" - self._format = "%3.3f" - - def set_baseband_freq(self, baseband_freq): - if self.peak_hold: - self.peak_vals = None - self.set_scale(baseband_freq) - self.fftsink.set_baseband_freq(baseband_freq) - - def on_close_window (self, event): - print "fft_window:on_close_window" - self.keep_running = False - - - def set_data (self, evt): - dB = evt.data - L = len (dB) - - if self.peak_hold: - if self.peak_vals is None: - self.peak_vals = dB - else: - self.peak_vals = numpy.maximum(dB, self.peak_vals) - - if self.fftsink.input_is_real: # only plot 1/2 the points - x_vals = ((numpy.arange (L/2) * (self.fftsink.sample_rate - * self._scale_factor / L)) - + self.fftsink.baseband_freq * self._scale_factor) - self._points = numpy.zeros((len(x_vals), 2), numpy.float64) - self._points[:,0] = x_vals - self._points[:,1] = dB[0:L/2] - if self.peak_hold: - self._peak_points = numpy.zeros((len(x_vals), 2), numpy.float64) - self._peak_points[:,0] = x_vals - self._peak_points[:,1] = self.peak_vals[0:L/2] - else: - # the "negative freqs" are in the second half of the array - x_vals = ((numpy.arange (-L/2, L/2) - * (self.fftsink.sample_rate * self._scale_factor / L)) - + self.fftsink.baseband_freq * self._scale_factor) - self._points = numpy.zeros((len(x_vals), 2), numpy.float64) - self._points[:,0] = x_vals - self._points[:,1] = numpy.concatenate ((dB[L/2:], dB[0:L/2])) - if self.peak_hold: - self._peak_points = numpy.zeros((len(x_vals), 2), numpy.float64) - self._peak_points[:,0] = x_vals - self._peak_points[:,1] = numpy.concatenate ((self.peak_vals[L/2:], self.peak_vals[0:L/2])) - - lines = [plot.PolyLine (self._points, colour='BLUE'),] - if self.peak_hold: - lines.append(plot.PolyLine (self._peak_points, colour='GREEN')) - - graphics = plot.PlotGraphics (lines, - title=self.fftsink.title, - xLabel = self._units, yLabel = "dB") - x_range = x_vals[0], x_vals[-1] - ymax = self.fftsink.ref_level - ymin = self.fftsink.ref_level - self.fftsink.y_per_div * self.fftsink.y_divs - y_range = ymin, ymax - self.plot.Draw (graphics, xAxis=x_range, yAxis=y_range, step=self.fftsink.y_per_div) - - def set_peak_hold(self, enable): - self.peak_hold = enable - self.peak_vals = None - - def on_average(self, evt): - # print "on_average" - self.fftsink.set_average(evt.IsChecked()) - self.control_panel.update() - - def on_peak_hold(self, evt): - # print "on_peak_hold" - self.fftsink.set_peak_hold(evt.IsChecked()) - self.control_panel.update() - - def on_incr_ref_level(self, evt): - # print "on_incr_ref_level" - self.fftsink.set_ref_level(self.fftsink.ref_level - + self.fftsink.y_per_div) - - def on_decr_ref_level(self, evt): - # print "on_decr_ref_level" - self.fftsink.set_ref_level(self.fftsink.ref_level - - self.fftsink.y_per_div) - - def on_incr_y_per_div(self, evt): - # print "on_incr_y_per_div" - self.fftsink.set_y_per_div(next_up(self.fftsink.y_per_div, DIV_LEVELS)) - self.control_panel.update() - - def on_decr_y_per_div(self, evt): - # print "on_decr_y_per_div" - self.fftsink.set_y_per_div(next_down(self.fftsink.y_per_div, DIV_LEVELS)) - self.control_panel.update() - - def on_y_per_div(self, evt): - # print "on_y_per_div" - Id = evt.GetId() - if Id == self.id_y_per_div_1: - self.fftsink.set_y_per_div(1) - elif Id == self.id_y_per_div_2: - self.fftsink.set_y_per_div(2) - elif Id == self.id_y_per_div_5: - self.fftsink.set_y_per_div(5) - elif Id == self.id_y_per_div_10: - self.fftsink.set_y_per_div(10) - elif Id == self.id_y_per_div_20: - self.fftsink.set_y_per_div(20) - self.control_panel.update() - - def on_right_click(self, event): - menu = self.popup_menu - for id, pred in self.checkmarks.items(): - item = menu.FindItemById(id) - item.Check(pred()) - self.plot.PopupMenu(menu, event.GetPosition()) - - def evt_motion(self, event): - if not hasattr(self, "_points"): - return # Got here before first window data update - - # Clip to plotted values - (ux, uy) = self.plot.GetXY(event) # Scaled position - x_vals = numpy.array(self._points[:,0]) - if ux < x_vals[0] or ux > x_vals[-1]: - tip = self.GetToolTip() - if tip: - tip.Enable(False) - return - - # Get nearest X value (is there a better way)? - ind = numpy.argmin(numpy.abs(x_vals-ux)) - x_val = x_vals[ind] - db_val = self._points[ind, 1] - text = (self._format+" %s dB=%3.3f") % (x_val, self._units, db_val) - - # Display the tooltip - tip = wx.ToolTip(text) - tip.Enable(True) - tip.SetDelay(0) - self.SetToolTip(tip) - - def build_popup_menu(self): - self.id_incr_ref_level = wx.NewId() - self.id_decr_ref_level = wx.NewId() - self.id_incr_y_per_div = wx.NewId() - self.id_decr_y_per_div = wx.NewId() - self.id_y_per_div_1 = wx.NewId() - self.id_y_per_div_2 = wx.NewId() - self.id_y_per_div_5 = wx.NewId() - self.id_y_per_div_10 = wx.NewId() - self.id_y_per_div_20 = wx.NewId() - self.id_average = wx.NewId() - self.id_peak_hold = wx.NewId() - - self.plot.Bind(wx.EVT_MENU, self.on_average, id=self.id_average) - self.plot.Bind(wx.EVT_MENU, self.on_peak_hold, id=self.id_peak_hold) - self.plot.Bind(wx.EVT_MENU, self.on_incr_ref_level, id=self.id_incr_ref_level) - self.plot.Bind(wx.EVT_MENU, self.on_decr_ref_level, id=self.id_decr_ref_level) - self.plot.Bind(wx.EVT_MENU, self.on_incr_y_per_div, id=self.id_incr_y_per_div) - self.plot.Bind(wx.EVT_MENU, self.on_decr_y_per_div, id=self.id_decr_y_per_div) - self.plot.Bind(wx.EVT_MENU, self.on_y_per_div, id=self.id_y_per_div_1) - self.plot.Bind(wx.EVT_MENU, self.on_y_per_div, id=self.id_y_per_div_2) - self.plot.Bind(wx.EVT_MENU, self.on_y_per_div, id=self.id_y_per_div_5) - self.plot.Bind(wx.EVT_MENU, self.on_y_per_div, id=self.id_y_per_div_10) - self.plot.Bind(wx.EVT_MENU, self.on_y_per_div, id=self.id_y_per_div_20) - - # make a menu - menu = wx.Menu() - self.popup_menu = menu - menu.AppendCheckItem(self.id_average, "Average") - menu.AppendCheckItem(self.id_peak_hold, "Peak Hold") - menu.Append(self.id_incr_ref_level, "Incr Ref Level") - menu.Append(self.id_decr_ref_level, "Decr Ref Level") - # menu.Append(self.id_incr_y_per_div, "Incr dB/div") - # menu.Append(self.id_decr_y_per_div, "Decr dB/div") - menu.AppendSeparator() - # we'd use RadioItems for these, but they're not supported on Mac - menu.AppendCheckItem(self.id_y_per_div_1, "1 dB/div") - menu.AppendCheckItem(self.id_y_per_div_2, "2 dB/div") - menu.AppendCheckItem(self.id_y_per_div_5, "5 dB/div") - menu.AppendCheckItem(self.id_y_per_div_10, "10 dB/div") - menu.AppendCheckItem(self.id_y_per_div_20, "20 dB/div") - - self.checkmarks = { - self.id_average : lambda : self.fftsink.average, - self.id_peak_hold : lambda : self.fftsink.peak_hold, - self.id_y_per_div_1 : lambda : self.fftsink.y_per_div == 1, - self.id_y_per_div_2 : lambda : self.fftsink.y_per_div == 2, - self.id_y_per_div_5 : lambda : self.fftsink.y_per_div == 5, - self.id_y_per_div_10 : lambda : self.fftsink.y_per_div == 10, - self.id_y_per_div_20 : lambda : self.fftsink.y_per_div == 20, - } - - -def next_up(v, seq): - """ - Return the first item in seq that is > v. - """ - for s in seq: - if s > v: - return s - return v - -def next_down(v, seq): - """ - Return the last item in seq that is < v. - """ - rseq = list(seq[:]) - rseq.reverse() - - for s in rseq: - if s < v: - return s - return v - - -# ---------------------------------------------------------------- -# Standalone test app -# ---------------------------------------------------------------- - -class test_app_block (stdgui2.std_top_block): - def __init__(self, frame, panel, vbox, argv): - stdgui2.std_top_block.__init__ (self, frame, panel, vbox, argv) - - fft_size = 256 - - # build our flow graph - input_rate = 20.48e3 - - # Generate a complex sinusoid - #src1 = gr.sig_source_c (input_rate, gr.GR_SIN_WAVE, 2e3, 1) - src1 = gr.sig_source_c (input_rate, gr.GR_CONST_WAVE, 5.75e3, 1) - - # We add these throttle blocks so that this demo doesn't - # suck down all the CPU available. Normally you wouldn't use these. - thr1 = gr.throttle(gr.sizeof_gr_complex, input_rate) +# - sink1 = fft_sink_c (panel, title="Complex Data", fft_size=fft_size, - sample_rate=input_rate, baseband_freq=100e3, - ref_level=0, y_per_div=20, y_divs=10) - vbox.Add (sink1.win, 1, wx.EXPAND) +from gnuradio import gr - self.connect(src1, thr1, sink1) +p = gr.prefs() +style = p.get_string('wxgui', 'style', 'auto') - #src2 = gr.sig_source_f (input_rate, gr.GR_SIN_WAVE, 2e3, 1) - src2 = gr.sig_source_f (input_rate, gr.GR_CONST_WAVE, 5.75e3, 1) - thr2 = gr.throttle(gr.sizeof_float, input_rate) - sink2 = fft_sink_f (panel, title="Real Data", fft_size=fft_size*2, - sample_rate=input_rate, baseband_freq=100e3, - ref_level=0, y_per_div=20, y_divs=10) - vbox.Add (sink2.win, 1, wx.EXPAND) +# In 3.2 we'll change 'auto' to mean 'gl' if possible, then fallback +if style == 'auto': + style = 'nongl' - self.connect(src2, thr2, sink2) +if style == 'nongl': + from fftsink_nongl import fft_sink_f, fft_sink_c +elif style == 'gl': + try: + import wx + wx.glcanvas.GLCanvas + except AttributeError: + raise RuntimeError("wxPython doesn't support glcanvas") -def main (): - app = stdgui2.stdapp (test_app_block, "FFT Sink Test App") - app.MainLoop () + try: + from OpenGL.GL import * + except ImportError: + raise RuntimeError("Unable to import OpenGL. Are Python wrappers for OpenGL installed?") -if __name__ == '__main__': - main () + from fftsink_gl import fft_sink_f, fft_sink_c |