Merge branch 'upstream' into dfsg-orig

[debian/gnuradio] / gr-howto-write-a-block / apps / howto_square.py

diff --git a/gr-howto-write-a-block/apps/howto_square.py b/gr-howto-write-a-block/apps/howto_square.py
new file mode 100755 (executable)
index 0000000..f14e283
--- /dev/null
+++ b/gr-howto-write-a-block/apps/howto_square.py
@@ -0,0 +1,77 @@
+#!/usr/bin/env python
+##################################################
+# Gnuradio Python Flow Graph
+# Title: Howto Square
+# Generated: Thu Nov 12 11:26:07 2009
+##################################################
+
+import howto
+from gnuradio import eng_notation
+from gnuradio import gr
+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)
+