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if_else_mod.py
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if_else_mod.py
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#!/usr/bin/env python
##################################################
# Gnuradio Python Flow Graph
# Title: Top Block
# Generated: Wed Jul 2 01:39:19 2014
##################################################
from PyQt4 import Qt
from gnuradio import analog
from gnuradio import blocks
from gnuradio import eng_notation
from gnuradio import gr
from gnuradio import qtgui
from gnuradio.eng_option import eng_option
from gnuradio.filter import firdes
from optparse import OptionParser
import sip
import sys
import threading
import time
class top_block(gr.top_block, Qt.QWidget):
def __init__(self):
gr.top_block.__init__(self, "Top Block")
Qt.QWidget.__init__(self)
self.setWindowTitle("Top Block")
try:
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
except:
pass
self.top_scroll_layout = Qt.QVBoxLayout()
self.setLayout(self.top_scroll_layout)
self.top_scroll = Qt.QScrollArea()
self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
self.top_scroll_layout.addWidget(self.top_scroll)
self.top_scroll.setWidgetResizable(True)
self.top_widget = Qt.QWidget()
self.top_scroll.setWidget(self.top_widget)
self.top_layout = Qt.QVBoxLayout(self.top_widget)
self.top_grid_layout = Qt.QGridLayout()
self.top_layout.addLayout(self.top_grid_layout)
self.settings = Qt.QSettings("GNU Radio", "top_block")
self.restoreGeometry(self.settings.value("geometry").toByteArray())
##################################################
# Variables
##################################################
self.variable_function_probe_0 = variable_function_probe_0 = 0
self.samp_rate = samp_rate = 32000
self.freq = freq = 1000
self.ampl = ampl = 1
##################################################
# Blocks
##################################################
self.probe = blocks.probe_signal_f()
self._freq_tool_bar = Qt.QToolBar(self)
self._freq_tool_bar.addWidget(Qt.QLabel("freq"+": "))
self._freq_line_edit = Qt.QLineEdit(str(self.freq))
self._freq_tool_bar.addWidget(self._freq_line_edit)
self._freq_line_edit.returnPressed.connect(
lambda: self.set_freq(int(self._freq_line_edit.text().toAscii())))
self.top_layout.addWidget(self._freq_tool_bar)
self._ampl_tool_bar = Qt.QToolBar(self)
self._ampl_tool_bar.addWidget(Qt.QLabel("ampl"+": "))
self._ampl_line_edit = Qt.QLineEdit(str(self.ampl))
self._ampl_tool_bar.addWidget(self._ampl_line_edit)
self._ampl_line_edit.returnPressed.connect(
lambda: self.set_ampl(int(self._ampl_line_edit.text().toAscii())))
self.top_layout.addWidget(self._ampl_tool_bar)
def _variable_function_probe_0_probe():
while True:
val = self.probe.level()
if val == 1:
self.set_ampl(1)
self.set_freq(1000)
else:
self.set_ampl(.3)
self.set_freq(100)
try:
self.set_variable_function_probe_0(val)
except AttributeError:
pass
time.sleep(1.0 / (10))
_variable_function_probe_0_thread = threading.Thread(target=_variable_function_probe_0_probe)
_variable_function_probe_0_thread.daemon = True
_variable_function_probe_0_thread.start()
self.qtgui_time_sink_x_0 = qtgui.time_sink_f(
1024, #size
samp_rate, #samp_rate
"QT GUI Plot", #name
1 #number of inputs
)
self.qtgui_time_sink_x_0.set_update_time(0.10)
self.qtgui_time_sink_x_0.set_y_axis(-1, 1)
self.qtgui_time_sink_x_0.enable_tags(-1, True)
self.qtgui_time_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, 0, "")
self.qtgui_time_sink_x_0.enable_autoscale(False)
labels = ["", "", "", "", "",
"", "", "", "", ""]
widths = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
colors = ["blue", "red", "green", "black", "cyan",
"magenta", "yellow", "dark red", "dark green", "blue"]
styles = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
markers = [-1, -1, -1, -1, -1,
-1, -1, -1, -1, -1]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
for i in xrange(1):
if len(labels[i]) == 0:
self.qtgui_time_sink_x_0.set_line_label(i, "Data {0}".format(i))
else:
self.qtgui_time_sink_x_0.set_line_label(i, labels[i])
self.qtgui_time_sink_x_0.set_line_width(i, widths[i])
self.qtgui_time_sink_x_0.set_line_color(i, colors[i])
self.qtgui_time_sink_x_0.set_line_style(i, styles[i])
self.qtgui_time_sink_x_0.set_line_marker(i, markers[i])
self.qtgui_time_sink_x_0.set_line_alpha(i, alphas[i])
self._qtgui_time_sink_x_0_win = sip.wrapinstance(self.qtgui_time_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_layout.addWidget(self._qtgui_time_sink_x_0_win)
self.blocks_throttle_0 = blocks.throttle(gr.sizeof_float*1, samp_rate,True)
self.analog_sig_source_x_1 = analog.sig_source_f(samp_rate, analog.GR_SIN_WAVE, freq, ampl, 0)
self.analog_sig_source_x_0 = analog.sig_source_f(samp_rate, analog.GR_SQR_WAVE, 0.1, 1, 0)
##################################################
# Connections
##################################################
self.connect((self.analog_sig_source_x_0, 0), (self.blocks_throttle_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.probe, 0))
self.connect((self.analog_sig_source_x_1, 0), (self.qtgui_time_sink_x_0, 0))
# QT sink close method reimplementation
def closeEvent(self, event):
self.settings = Qt.QSettings("GNU Radio", "top_block")
self.settings.setValue("geometry", self.saveGeometry())
event.accept()
def get_variable_function_probe_0(self):
return self.variable_function_probe_0
def set_variable_function_probe_0(self, variable_function_probe_0):
self.variable_function_probe_0 = variable_function_probe_0
def get_samp_rate(self):
return self.samp_rate
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.blocks_throttle_0.set_sample_rate(self.samp_rate)
self.analog_sig_source_x_0.set_sampling_freq(self.samp_rate)
self.qtgui_time_sink_x_0.set_samp_rate(self.samp_rate)
self.analog_sig_source_x_1.set_sampling_freq(self.samp_rate)
def get_freq(self):
return self.freq
def set_freq(self, freq):
self.freq = freq
Qt.QMetaObject.invokeMethod(self._freq_line_edit, "setText", Qt.Q_ARG("QString", str(self.freq)))
self.analog_sig_source_x_1.set_frequency(self.freq)
def get_ampl(self):
return self.ampl
def set_ampl(self, ampl):
self.ampl = ampl
Qt.QMetaObject.invokeMethod(self._ampl_line_edit, "setText", Qt.Q_ARG("QString", str(self.ampl)))
self.analog_sig_source_x_1.set_amplitude(self.ampl)
if __name__ == '__main__':
import ctypes
import sys
if sys.platform.startswith('linux'):
try:
x11 = ctypes.cdll.LoadLibrary('libX11.so')
x11.XInitThreads()
except:
print "Warning: failed to XInitThreads()"
parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
(options, args) = parser.parse_args()
Qt.QApplication.setGraphicsSystem(gr.prefs().get_string('qtgui','style','raster'))
qapp = Qt.QApplication(sys.argv)
tb = top_block()
tb.start()
tb.show()
def quitting():
tb.stop()
tb.wait()
qapp.connect(qapp, Qt.SIGNAL("aboutToQuit()"), quitting)
qapp.exec_()
tb = None #to clean up Qt widgets