I'm not sure if my email got sent out, so I'm re-posting....
Hi all-
I have attached a modified scopesink that I believe fixes some sizing
bugs. The issue is that the scope window would intrude on the controls
below when sizes other than the default 640 by 240 is specified in the
scopesink code. The credit goes to Michael Dickens, who provided these
fixes to me a while back in a personal communication. I have been
updating the various versions of scopesink for my own use and have done so
for the current (as of svn 10991) implementation of scopesink_nongl.py
which I provide here, with the hopes that somebody more knowledgeable in
creating patches can provide a formal one to fix this issue. The fixes
are very simple; other than resizing the defaults window sizes to a
smaller value suitable for a smaller resolution screen (such as for a
laptop), the changes are either lines that have "size=size" or "|
wx.EXPAND)" added to them. All the lines with changes have the note
"#mdickens" after them to aid in identification.
I would be happy to provide any other information; please let me know.
thanks,
eric
#!/usr/bin/env python
#
# Copyright 2003,2004,2006,2007 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.wxgui import stdgui2
import wx
import gnuradio.wxgui.plot as plot
import numpy
import threading
import struct
default_scopesink_size = (200, 100) #from 640 240 by mdickens
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 = gr.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, size=size) #mdickens added size=size
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, **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 = gr.oscope_sink_f(sample_rate, msgq)
for i in range(num_inputs):
c2f = gr.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, size=size) #mdickens added size=size
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 (threading.Thread):
def __init__ (self, msgq, event_receiver, frame_decim, **kwds):
threading.Thread.__init__ (self, **kwds)
self.setDaemon (1)
self.msgq = msgq
self.event_receiver = event_receiver
self.frame_decim = frame_decim
self.iscan = 0
self.keep_running = True
self.start ()
def run (self):
# print "input_watcher: pid = ", os.getpid ()
while (self.keep_running):
msg = self.msgq.delete_head() # blocking read of message queue
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
# end if iscan == 0
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, size=size) #mdickens
self.info = info
vbox = wx.BoxSizer (wx.VERTICAL)
self.graph = graph_window (info, self, -1, size=size) #mdickens
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 | wx.EXPAND)
#mdickens added | wx.EXPAND
ctrlbox.Add ((20,0) ,0) # spacer
ctrlbox.Add (self.autorange_checkbox, 0, wx.ALIGN_CENTER | wx.EXPAND)
#mdickens added | wx.EXPAND
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 | wx.EXPAND) #mdickens
ctrlbox.Add (tb_left, 0, wx.EXPAND)
ctrlbox.Add (tb_right, 0, wx.EXPAND)
ctrlbox.Add (self.time_base_label, 0, wx.ALIGN_CENTER | wx.EXPAND)
#mdickens
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 | wx.EXPAND)
#mdickens
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 | wx.EXPAND)
#mdickens
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 |
wx.EXPAND) #mdickens
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 | wx.EXPAND)
#mdickens
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 | wx.EXPAND) #mdickens
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 (gr.gr_TRIG_MODE_NORM)
elif s == 'Auto':
sink.set_trigger_mode (gr.gr_TRIG_MODE_AUTO)
elif s == 'Free':
sink.set_trigger_mode (gr.gr_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 = gr.sig_source_c (input_rate, gr.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 = gr.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 ()
# ----------------------------------------------------------------
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