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#!/usr/bin/env python
##################################################
# Gnuradio Python Flow Graph
# Title: Howto Square
# Generated: Thu Nov 12 11:26:07 2009
##################################################
from gnuradio import eng_notation
from gnuradio import gr
from gnuradio import howto
from gnuradio.eng_option import eng_option
from gnuradio.gr import firdes
from gnuradio.wxgui import scopesink2
from grc_gnuradio import wxgui as grc_wxgui
from optparse import OptionParser
import wx
class howto_square(grc_wxgui.top_block_gui):
def __init__(self):
grc_wxgui.top_block_gui.__init__(self, title="Howto Square")
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 10e3
##################################################
# Blocks
##################################################
self.sink = scopesink2.scope_sink_f(
self.GetWin(),
title="Input",
sample_rate=samp_rate,
v_scale=20,
v_offset=0,
t_scale=0.002,
ac_couple=False,
xy_mode=False,
num_inputs=1,
)
self.Add(self.sink.win)
self.sink2 = scopesink2.scope_sink_f(
self.GetWin(),
title="Output",
sample_rate=samp_rate,
v_scale=0,
v_offset=0,
t_scale=0.002,
ac_couple=False,
xy_mode=False,
num_inputs=1,
)
self.Add(self.sink2.win)
self.sqr = howto.square_ff()
self.src = gr.vector_source_f(([float(n)-50 for n in range(100)]), True, 1)
self.thr = gr.throttle(gr.sizeof_float*1, samp_rate)
##################################################
# Connections
##################################################
self.connect((self.thr, 0), (self.sqr, 0))
self.connect((self.src, 0), (self.thr, 0))
self.connect((self.thr, 0), (self.sink, 0))
self.connect((self.sqr, 0), (self.sink2, 0))
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.sink.set_sample_rate(self.samp_rate)
self.sink2.set_sample_rate(self.samp_rate)
if __name__ == '__main__':
parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
(options, args) = parser.parse_args()
tb = howto_square()
tb.Run(True)
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