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scopesink_nongl.py
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#!/usr/bin/env python
#
# Copyright 2003,2004,2006,2007,2012 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, eng_notation
from gnuradio import analog
from gnuradio import blocks
from gnuradio import wxgui
from gnuradio.wxgui import stdgui2
import wx
import gnuradio.wxgui.plot as plot
import numpy
import struct
default_scopesink_size = (640, 240)
default_v_scale = 1000
default_frame_decim = gr.prefs().get_long('wxgui', 'frame_decim', 1)
class scope_sink_f(gr.hier_block2):
def __init__(self, parent, title='', sample_rate=1,
size=default_scopesink_size, frame_decim=default_frame_decim,
v_scale=default_v_scale, t_scale=None, num_inputs=1, **kwargs):
gr.hier_block2.__init__(self, "scope_sink_f",
gr.io_signature(num_inputs, num_inputs, gr.sizeof_float),
gr.io_signature(0,0,0))
msgq = gr.msg_queue(2) # message queue that holds at most 2 messages
self.guts = wxgui.oscope_sink_f(sample_rate, msgq)
for i in range(num_inputs):
self.connect((self, i), (self.guts, i))
self.win = scope_window(win_info(msgq, sample_rate, frame_decim,
v_scale, t_scale, self.guts, title), parent)
def set_sample_rate(self, sample_rate):
self.guts.set_sample_rate(sample_rate)
self.win.info.set_sample_rate(sample_rate)
class scope_sink_c(gr.hier_block2):
def __init__(self, parent, title='', sample_rate=1,
size=default_scopesink_size, frame_decim=default_frame_decim,
v_scale=default_v_scale, t_scale=None, num_inputs=1, xy_mode=False, **kwargs):
gr.hier_block2.__init__(self, "scope_sink_c",
gr.io_signature(num_inputs, num_inputs, gr.sizeof_gr_complex),
gr.io_signature(0,0,0))
msgq = gr.msg_queue(2) # message queue that holds at most 2 messages
self.guts = wxgui.oscope_sink_f(sample_rate, msgq)
for i in range(num_inputs):
c2f = blocks.complex_to_float()
self.connect((self, i), c2f)
self.connect((c2f, 0),(self.guts, 2*i+0))
self.connect((c2f, 1),(self.guts, 2*i+1))
self.win = scope_window(win_info(msgq, sample_rate, frame_decim,
v_scale, t_scale, self.guts, title), parent)
self.win.info.xy = xy_mode
def set_sample_rate(self, sample_rate):
self.guts.set_sample_rate(sample_rate)
self.win.info.set_sample_rate(sample_rate)
class constellation_sink(scope_sink_c):
def __init__(self, parent, title='Constellation', sample_rate=1,
size=default_scopesink_size, frame_decim=default_frame_decim):
scope_sink_c.__init__(self, parent=parent, title=title, sample_rate=sample_rate,
size=size, frame_decim=frame_decim)
self.win.info.xy = True #constellation mode
# ========================================================================
time_base_list = [ # time / division
1.0e-7, # 100ns / div
2.5e-7,
5.0e-7,
1.0e-6, # 1us / div
2.5e-6,
5.0e-6,
1.0e-5, # 10us / div
2.5e-5,
5.0e-5,
1.0e-4, # 100us / div
2.5e-4,
5.0e-4,
1.0e-3, # 1ms / div
2.5e-3,
5.0e-3,
1.0e-2, # 10ms / div
2.5e-2,
5.0e-2
]
v_scale_list = [ # counts / div, LARGER gains are SMALLER /div, appear EARLIER
2.0e-3, # 2m / div, don't call it V/div it's actually counts/div
5.0e-3,
1.0e-2,
2.0e-2,
5.0e-2,
1.0e-1,
2.0e-1,
5.0e-1,
1.0e+0,
2.0e+0,
5.0e+0,
1.0e+1,
2.0e+1,
5.0e+1,
1.0e+2,
2.0e+2,
5.0e+2,
1.0e+3,
2.0e+3,
5.0e+3,
1.0e+4 # 10000 /div, USRP full scale is -/+ 32767
]
wxDATA_EVENT = wx.NewEventType()
def EVT_DATA_EVENT(win, func):
win.Connect(-1, -1, wxDATA_EVENT, func)
class DataEvent(wx.PyEvent):
def __init__(self, data):
wx.PyEvent.__init__(self)
self.SetEventType(wxDATA_EVENT)
self.data = data
def Clone(self):
self.__class__(self.GetId())
class win_info(object):
__slots__ = ['msgq', 'sample_rate', 'frame_decim', 'v_scale',
'scopesink', 'title',
'time_scale_cursor', 'v_scale_cursor', 'marker', 'xy',
'autorange', 'running']
def __init__(self, msgq, sample_rate, frame_decim, v_scale, t_scale,
scopesink, title = "Oscilloscope", xy=False):
self.msgq = msgq
self.sample_rate = sample_rate
self.frame_decim = frame_decim
self.scopesink = scopesink
self.title = title;
self.time_scale_cursor = gru.seq_with_cursor(time_base_list, initial_value = t_scale)
self.v_scale_cursor = gru.seq_with_cursor(v_scale_list, initial_value = v_scale)
self.marker = 'line'
self.xy = xy
self.autorange = not v_scale
self.running = True
def get_time_per_div(self):
return self.time_scale_cursor.current()
def get_volts_per_div(self):
return self.v_scale_cursor.current()
def set_sample_rate(self, sample_rate):
self.sample_rate = sample_rate
def get_sample_rate(self):
return self.sample_rate
def get_decimation_rate(self):
return 1.0
def set_marker(self, s):
self.marker = s
def get_marker(self):
return self.marker
class input_watcher(gru.msgq_runner):
def __init__(self, msgq, event_receiver, frame_decim, **kwds):
self.event_receiver = event_receiver
self.frame_decim = frame_decim
self.iscan = 0
gru.msgq_runner.__init__(self, msgq, self.handle_msg)
def handle_msg(self, msg):
if self.iscan == 0: # only display at frame_decim
self.iscan = self.frame_decim
nchan = int(msg.arg1()) # number of channels of data in msg
nsamples = int(msg.arg2()) # number of samples in each channel
s = msg.to_string() # get the body of the msg as a string
bytes_per_chan = nsamples * gr.sizeof_float
records = []
for ch in range(nchan):
start = ch * bytes_per_chan
chan_data = s[start:start+bytes_per_chan]
rec = numpy.fromstring(chan_data, numpy.float32)
records.append(rec)
# print "nrecords = %d, reclen = %d" % (len (records),nsamples)
de = DataEvent(records)
wx.PostEvent(self.event_receiver, de)
records = []
del de
self.iscan -= 1
class scope_window(wx.Panel):
def __init__(self, info, parent, id = -1,
pos = wx.DefaultPosition, size = wx.DefaultSize, name = ""):
wx.Panel.__init__(self, parent, -1)
self.info = info
vbox = wx.BoxSizer(wx.VERTICAL)
self.graph = graph_window(info, self, -1)
vbox.Add(self.graph, 1, wx.EXPAND)
vbox.Add(self.make_control_box(), 0, wx.EXPAND)
vbox.Add(self.make_control2_box(), 0, wx.EXPAND)
self.sizer = vbox
self.SetSizer(self.sizer)
self.SetAutoLayout(True)
self.sizer.Fit(self)
self.set_autorange(self.info.autorange)
# second row of control buttons etc. appears BELOW control_box
def make_control2_box(self):
ctrlbox = wx.BoxSizer(wx.HORIZONTAL)
self.inc_v_button = wx.Button(self, 1101, " < ", style=wx.BU_EXACTFIT)
self.inc_v_button.SetToolTipString("Increase vertical range")
wx.EVT_BUTTON(self, 1101, self.incr_v_scale) # ID matches button ID above
self.dec_v_button = wx.Button(self, 1100, " > ", style=wx.BU_EXACTFIT)
self.dec_v_button.SetToolTipString("Decrease vertical range")
wx.EVT_BUTTON(self, 1100, self.decr_v_scale)
self.v_scale_label = wx.StaticText(self, 1002, "None") # vertical /div
self.update_v_scale_label()
self.autorange_checkbox = wx.CheckBox(self, 1102, "Autorange")
self.autorange_checkbox.SetToolTipString("Select autorange on/off")
wx.EVT_CHECKBOX(self, 1102, self.autorange_checkbox_event)
ctrlbox.Add((5,0) ,0) # left margin space
ctrlbox.Add(self.inc_v_button, 0, wx.EXPAND)
ctrlbox.Add(self.dec_v_button, 0, wx.EXPAND)
ctrlbox.Add(self.v_scale_label, 0, wx.ALIGN_CENTER)
ctrlbox.Add((20,0) ,0) # spacer
ctrlbox.Add(self.autorange_checkbox, 0, wx.ALIGN_CENTER)
return ctrlbox
def make_control_box(self):
ctrlbox = wx.BoxSizer(wx.HORIZONTAL)
tb_left = wx.Button(self, 1001, " < ", style=wx.BU_EXACTFIT)
tb_left.SetToolTipString("Increase time base")
wx.EVT_BUTTON(self, 1001, self.incr_timebase)
tb_right = wx.Button(self, 1000, " > ", style=wx.BU_EXACTFIT)
tb_right.SetToolTipString("Decrease time base")
wx.EVT_BUTTON(self, 1000, self.decr_timebase)
self.time_base_label = wx.StaticText(self, 1002, "")
self.update_timebase_label()
ctrlbox.Add((5,0) ,0)
# ctrlbox.Add(wx.StaticText(self, -1, "Horiz Scale: "), 0, wx.ALIGN_CENTER)
ctrlbox.Add(tb_left, 0, wx.EXPAND)
ctrlbox.Add(tb_right, 0, wx.EXPAND)
ctrlbox.Add(self.time_base_label, 0, wx.ALIGN_CENTER)
ctrlbox.Add((10,0) ,1) # stretchy space
ctrlbox.Add(wx.StaticText(self, -1, "Trig: "), 0, wx.ALIGN_CENTER)
self.trig_chan_choice = wx.Choice(self, 1004,
choices = ['Ch1', 'Ch2', 'Ch3', 'Ch4'])
self.trig_chan_choice.SetToolTipString("Select channel for trigger")
wx.EVT_CHOICE(self, 1004, self.trig_chan_choice_event)
ctrlbox.Add(self.trig_chan_choice, 0, wx.ALIGN_CENTER)
self.trig_mode_choice = wx.Choice(self, 1005,
choices = ['Free', 'Auto', 'Norm'])
self.trig_mode_choice.SetSelection(1)
self.trig_mode_choice.SetToolTipString("Select trigger slope or Auto (untriggered roll)")
wx.EVT_CHOICE(self, 1005, self.trig_mode_choice_event)
ctrlbox.Add(self.trig_mode_choice, 0, wx.ALIGN_CENTER)
trig_level50 = wx.Button(self, 1006, "50%")
trig_level50.SetToolTipString("Set trigger level to 50%")
wx.EVT_BUTTON(self, 1006, self.set_trig_level50)
ctrlbox.Add(trig_level50, 0, wx.EXPAND)
run_stop = wx.Button(self, 1007, "Run/Stop")
run_stop.SetToolTipString("Toggle Run/Stop mode")
wx.EVT_BUTTON(self, 1007, self.run_stop)
ctrlbox.Add(run_stop, 0, wx.EXPAND)
ctrlbox.Add((10, 0) ,1) # stretchy space
ctrlbox.Add(wx.StaticText(self, -1, "Fmt: "), 0, wx.ALIGN_CENTER)
self.marker_choice = wx.Choice(self, 1002, choices = self._marker_choices)
self.marker_choice.SetToolTipString("Select plotting with lines, pluses or dots")
wx.EVT_CHOICE(self, 1002, self.marker_choice_event)
ctrlbox.Add(self.marker_choice, 0, wx.ALIGN_CENTER)
self.xy_choice = wx.Choice(self, 1003, choices = ['X:t', 'X:Y'])
self.xy_choice.SetToolTipString("Select X vs time or X vs Y display")
wx.EVT_CHOICE(self, 1003, self.xy_choice_event)
ctrlbox.Add(self.xy_choice, 0, wx.ALIGN_CENTER)
return ctrlbox
_marker_choices = ['line', 'plus', 'dot']
def update_timebase_label(self):
time_per_div = self.info.get_time_per_div()
s = ' ' + eng_notation.num_to_str(time_per_div) + 's/div'
self.time_base_label.SetLabel(s)
def decr_timebase(self, evt):
self.info.time_scale_cursor.prev()
self.update_timebase_label()
def incr_timebase(self, evt):
self.info.time_scale_cursor.next()
self.update_timebase_label()
def update_v_scale_label(self):
volts_per_div = self.info.get_volts_per_div()
s = ' ' + eng_notation.num_to_str(volts_per_div) + '/div' # Not V/div
self.v_scale_label.SetLabel(s)
def decr_v_scale(self, evt):
self.info.v_scale_cursor.prev()
self.update_v_scale_label()
def incr_v_scale(self, evt):
self.info.v_scale_cursor.next()
self.update_v_scale_label()
def marker_choice_event(self, evt):
s = evt.GetString()
self.set_marker(s)
def set_autorange(self, on):
if on:
self.v_scale_label.SetLabel(" (auto)")
self.info.autorange = True
self.autorange_checkbox.SetValue(True)
self.inc_v_button.Enable(False)
self.dec_v_button.Enable(False)
else:
if self.graph.y_range:
(l,u) = self.graph.y_range # found by autorange
self.info.v_scale_cursor.set_index_by_value((u-l)/8.0)
self.update_v_scale_label()
self.info.autorange = False
self.autorange_checkbox.SetValue(False)
self.inc_v_button.Enable(True)
self.dec_v_button.Enable(True)
def autorange_checkbox_event(self, evt):
if evt.Checked():
self.set_autorange(True)
else:
self.set_autorange(False)
def set_marker(self, s):
self.info.set_marker(s) # set info for drawing routines
i = self.marker_choice.FindString(s)
assert i >= 0, "Hmmm, set_marker problem"
self.marker_choice.SetSelection(i)
def set_format_line(self):
self.set_marker('line')
def set_format_dot(self):
self.set_marker('dot')
def set_format_plus(self):
self.set_marker('plus')
def xy_choice_event(self, evt):
s = evt.GetString()
self.info.xy = s == 'X:Y'
def trig_chan_choice_event(self, evt):
s = evt.GetString()
ch = int(s[-1]) - 1
self.info.scopesink.set_trigger_channel(ch)
def trig_mode_choice_event(self, evt):
sink = self.info.scopesink
s = evt.GetString()
if s == 'Norm':
sink.set_trigger_mode(wxgui.TRIG_MODE_NORM)
elif s == 'Auto':
sink.set_trigger_mode(wxgui.TRIG_MODE_AUTO)
elif s == 'Free':
sink.set_trigger_mode(wxgui.TRIG_MODE_FREE)
else:
assert 0, "Bad trig_mode_choice string"
def set_trig_level50(self, evt):
self.info.scopesink.set_trigger_level_auto()
def run_stop(self, evt):
self.info.running = not self.info.running
class graph_window(plot.PlotCanvas):
channel_colors = ['BLUE', 'RED',
'CYAN', 'MAGENTA', 'GREEN', 'YELLOW']
def __init__(self, info, parent, id = -1,
pos = wx.DefaultPosition, size = (640, 240),
style = wx.DEFAULT_FRAME_STYLE, name = ""):
plot.PlotCanvas.__init__(self, parent, id, pos, size, style, name)
self.SetXUseScopeTicks(True)
self.SetEnableGrid(True)
self.SetEnableZoom(True)
self.SetEnableLegend(True)
# self.SetBackgroundColour('black')
self.info = info;
self.y_range = None
self.x_range = None
self.avg_y_min = None
self.avg_y_max = None
self.avg_x_min = None
self.avg_x_max = None
EVT_DATA_EVENT(self, self.format_data)
self.input_watcher = input_watcher(info.msgq, self, info.frame_decim)
def channel_color(self, ch):
return self.channel_colors[ch % len(self.channel_colors)]
def format_data(self, evt):
if not self.info.running:
return
if self.info.xy:
self.format_xy_data(evt)
return
info = self.info
records = evt.data
nchannels = len(records)
npoints = len(records[0])
objects = []
Ts = 1.0 / (info.get_sample_rate() / info.get_decimation_rate())
x_vals = Ts * numpy.arange(-npoints/2, npoints/2)
# preliminary clipping based on time axis here, instead of in graphics code
time_per_window = self.info.get_time_per_div() * 10
n = int(time_per_window / Ts + 0.5)
n = n & ~0x1 # make even
n = max(2, min(n, npoints))
self.SetXUseScopeTicks(True) # use 10 divisions, no labels
for ch in range(nchannels):
r = records[ch]
# plot middle n points of record
lb = npoints/2 - n/2
ub = npoints/2 + n/2
# points = zip(x_vals[lb:ub], r[lb:ub])
points = numpy.zeros((ub-lb, 2), numpy.float64)
points[:,0] = x_vals[lb:ub]
points[:,1] = r[lb:ub]
m = info.get_marker()
if m == 'line':
objects.append(plot.PolyLine(points,
colour=self.channel_color(ch),
legend=('Ch%d' % (ch+1,))))
else:
objects.append(plot.PolyMarker(points,
marker=m,
colour=self.channel_color(ch),
legend=('Ch%d' % (ch+1,))))
graphics = plot.PlotGraphics(objects,
title=self.info.title,
xLabel = '', yLabel = '')
time_per_div = info.get_time_per_div()
x_range = (-5.0 * time_per_div, 5.0 * time_per_div) # ranges are tuples!
volts_per_div = info.get_volts_per_div()
if not self.info.autorange:
self.y_range = (-4.0 * volts_per_div, 4.0 * volts_per_div)
self.Draw(graphics, xAxis=x_range, yAxis=self.y_range)
self.update_y_range() # autorange to self.y_range
def format_xy_data(self, evt):
info = self.info
records = evt.data
nchannels = len(records)
npoints = len(records[0])
if nchannels < 2:
return
objects = []
# points = zip(records[0], records[1])
points = numpy.zeros((len(records[0]), 2), numpy.float32)
points[:,0] = records[0]
points[:,1] = records[1]
self.SetXUseScopeTicks(False)
m = info.get_marker()
if m == 'line':
objects.append(plot.PolyLine(points,
colour=self.channel_color(0)))
else:
objects.append(plot.PolyMarker(points,
marker=m,
colour=self.channel_color(0)))
graphics = plot.PlotGraphics(objects,
title=self.info.title,
xLabel = 'I', yLabel = 'Q')
self.Draw(graphics, xAxis=self.x_range, yAxis=self.y_range)
self.update_y_range()
self.update_x_range()
def update_y_range(self):
alpha = 1.0/25
graphics = self.last_draw[0]
p1, p2 = graphics.boundingBox() # min, max points of graphics
if self.avg_y_min: # prevent vertical scale from jumping abruptly --?
self.avg_y_min = p1[1] * alpha + self.avg_y_min * (1 - alpha)
self.avg_y_max = p2[1] * alpha + self.avg_y_max * (1 - alpha)
else: # initial guess
self.avg_y_min = p1[1] # -500.0 workaround, sometimes p1 is ~ 10^35
self.avg_y_max = p2[1] # 500.0
self.y_range = self._axisInterval('auto', self.avg_y_min, self.avg_y_max)
# print "p1 %s p2 %s y_min %s y_max %s y_range %s" \
# % (p1, p2, self.avg_y_min, self.avg_y_max, self.y_range)
def update_x_range(self):
alpha = 1.0/25
graphics = self.last_draw[0]
p1, p2 = graphics.boundingBox() # min, max points of graphics
if self.avg_x_min:
self.avg_x_min = p1[0] * alpha + self.avg_x_min * (1 - alpha)
self.avg_x_max = p2[0] * alpha + self.avg_x_max * (1 - alpha)
else:
self.avg_x_min = p1[0]
self.avg_x_max = p2[0]
self.x_range = self._axisInterval('auto', self.avg_x_min, self.avg_x_max)
# ----------------------------------------------------------------
# Stand-alone test application
# ----------------------------------------------------------------
class test_top_block(stdgui2.std_top_block):
def __init__(self, frame, panel, vbox, argv):
stdgui2.std_top_block.__init__(self, frame, panel, vbox, argv)
if len(argv) > 1:
frame_decim = int(argv[1])
else:
frame_decim = 1
if len(argv) > 2:
v_scale = float(argv[2]) # start up at this v_scale value
else:
v_scale = None # start up in autorange mode, default
if len(argv) > 3:
t_scale = float(argv[3]) # start up at this t_scale value
else:
t_scale = None # old behavior
print "frame decim %s v_scale %s t_scale %s" % (frame_decim,v_scale,t_scale)
input_rate = 1e6
# Generate a complex sinusoid
self.src0 = analog.sig_source_c(input_rate, analog.GR_SIN_WAVE, 25.1e3, 1e3)
# We add this throttle block so that this demo doesn't suck down
# all the CPU available. You normally wouldn't use it...
self.thr = blocks.throttle(gr.sizeof_gr_complex, input_rate)
scope = scope_sink_c(panel,"Secret Data",sample_rate=input_rate,
frame_decim=frame_decim,
v_scale=v_scale, t_scale=t_scale)
vbox.Add(scope.win, 1, wx.EXPAND)
# Ultimately this will be
# self.connect("src0 throttle scope")
self.connect(self.src0, self.thr, scope)
def main():
app = stdgui2.stdapp(test_top_block, "O'Scope Test App")
app.MainLoop()
if __name__ == '__main__':
main()
# ----------------------------------------------------------------