-#!/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
projects / debian / gnuradio / blobdiff