#
-# Copyright 2008 Free Software Foundation, Inc.
+# Copyright 2008, 2009, 2010 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
##################################################
SLIDER_STEPS = 100
AVG_ALPHA_MIN_EXP, AVG_ALPHA_MAX_EXP = -3, 0
+PERSIST_ALPHA_MIN_EXP, PERSIST_ALPHA_MAX_EXP = -2, 0
DEFAULT_WIN_SIZE = (600, 300)
DEFAULT_FRAME_RATE = gr.prefs().get_long('wxgui', 'fft_rate', 30)
-DIV_LEVELS = (1, 2, 5, 10, 20)
+DB_DIV_MIN, DB_DIV_MAX = 1, 20
FFT_PLOT_COLOR_SPEC = (0.3, 0.3, 1.0)
PEAK_VALS_COLOR_SPEC = (0.0, 0.8, 0.0)
-NO_PEAK_VALS = list()
+EMPTY_TRACE = list()
+TRACES = ('A', 'B')
+TRACES_COLOR_SPEC = {
+ 'A': (1.0, 0.0, 0.0),
+ 'B': (0.8, 0.0, 0.8),
+}
##################################################
# FFT window control panel
"""
self.parent = parent
wx.Panel.__init__(self, parent, style=wx.SUNKEN_BORDER)
+ parent[SHOW_CONTROL_PANEL_KEY] = True
+ parent.subscribe(SHOW_CONTROL_PANEL_KEY, self.Show)
control_box = wx.BoxSizer(wx.VERTICAL)
control_box.AddStretchSpacer()
#checkboxes for average and peak hold
options_box = forms.static_box_sizer(
- parent=self, sizer=control_box, label='Options',
+ parent=self, sizer=control_box, label='Trace Options',
bold=True, orient=wx.VERTICAL,
)
forms.check_box(
for widget in (avg_alpha_text, avg_alpha_slider):
parent.subscribe(AVERAGE_KEY, widget.Enable)
widget.Enable(parent[AVERAGE_KEY])
+ parent.subscribe(AVERAGE_KEY, widget.ShowItems)
+ #allways show initially, so room is reserved for them
+ widget.ShowItems(True) # (parent[AVERAGE_KEY])
+
+ parent.subscribe(AVERAGE_KEY, self._update_layout)
+
+ forms.check_box(
+ sizer=options_box, parent=self, label='Persistence',
+ ps=parent, key=USE_PERSISTENCE_KEY,
+ )
+ #static text and slider for persist alpha
+ persist_alpha_text = forms.static_text(
+ sizer=options_box, parent=self, label='Persist Alpha',
+ converter=forms.float_converter(lambda x: '%.4f'%x),
+ ps=parent, key=PERSIST_ALPHA_KEY, width=50,
+ )
+ persist_alpha_slider = forms.log_slider(
+ sizer=options_box, parent=self,
+ min_exp=PERSIST_ALPHA_MIN_EXP,
+ max_exp=PERSIST_ALPHA_MAX_EXP,
+ num_steps=SLIDER_STEPS,
+ ps=parent, key=PERSIST_ALPHA_KEY,
+ )
+ for widget in (persist_alpha_text, persist_alpha_slider):
+ parent.subscribe(USE_PERSISTENCE_KEY, widget.Enable)
+ widget.Enable(parent[USE_PERSISTENCE_KEY])
+ parent.subscribe(USE_PERSISTENCE_KEY, widget.ShowItems)
+ #allways show initially, so room is reserved for them
+ widget.ShowItems(True) # (parent[USE_PERSISTENCE_KEY])
+
+ parent.subscribe(USE_PERSISTENCE_KEY, self._update_layout)
+
+ #trace menu
+ for trace in TRACES:
+ trace_box = wx.BoxSizer(wx.HORIZONTAL)
+ options_box.Add(trace_box, 0, wx.EXPAND)
+ forms.check_box(
+ sizer=trace_box, parent=self,
+ ps=parent, key=TRACE_SHOW_KEY+trace,
+ label='Trace %s'%trace,
+ )
+ trace_box.AddSpacer(10)
+ forms.single_button(
+ sizer=trace_box, parent=self,
+ ps=parent, key=TRACE_STORE_KEY+trace,
+ label='Store', style=wx.BU_EXACTFIT,
+ )
+ trace_box.AddSpacer(10)
#radio buttons for div size
control_box.AddStretchSpacer()
y_ctrl_box = forms.static_box_sizer(
parent=self, sizer=control_box, label='Axis Options',
bold=True, orient=wx.VERTICAL,
)
- forms.radio_buttons(
- sizer=y_ctrl_box, parent=self,
- ps=parent, key=Y_PER_DIV_KEY,
- style=wx.RA_VERTICAL|wx.NO_BORDER, choices=DIV_LEVELS,
- labels=map(lambda x: '%s dB/div'%x, DIV_LEVELS),
+ forms.incr_decr_buttons(
+ parent=self, sizer=y_ctrl_box, label='dB/Div',
+ on_incr=self._on_incr_db_div, on_decr=self._on_decr_db_div,
)
#ref lvl buttons
forms.incr_decr_buttons(
)
#set sizer
self.SetSizerAndFit(control_box)
+
#mouse wheel event
def on_mouse_wheel(event):
if event.GetWheelRotation() < 0: self._on_incr_ref_level(event)
self.parent[REF_LEVEL_KEY] = self.parent[REF_LEVEL_KEY] + self.parent[Y_PER_DIV_KEY]
def _on_decr_ref_level(self, event):
self.parent[REF_LEVEL_KEY] = self.parent[REF_LEVEL_KEY] - self.parent[Y_PER_DIV_KEY]
+ def _on_incr_db_div(self, event):
+ self.parent[Y_PER_DIV_KEY] = min(DB_DIV_MAX, common.get_clean_incr(self.parent[Y_PER_DIV_KEY]))
+ def _on_decr_db_div(self, event):
+ self.parent[Y_PER_DIV_KEY] = max(DB_DIV_MIN, common.get_clean_decr(self.parent[Y_PER_DIV_KEY]))
+ ##################################################
+ # subscriber handlers
+ ##################################################
+ def _update_layout(self,key):
+ # Just ignore the key value we get
+ # we only need to now that the visability or size of something has changed
+ self.parent.Layout()
+ #self.parent.Fit()
##################################################
# FFT window with plotter and control panel
avg_alpha_key,
peak_hold,
msg_key,
+ use_persistence,
+ persist_alpha,
):
+
pubsub.pubsub.__init__(self)
- #ensure y_per_div
- if y_per_div not in DIV_LEVELS: y_per_div = DIV_LEVELS[0]
#setup
- self.samples = list()
+ self.samples = EMPTY_TRACE
self.real = real
self.fft_size = fft_size
self._reset_peak_vals()
+ self._traces = dict()
#proxy the keys
self.proxy(MSG_KEY, controller, msg_key)
self.proxy(AVERAGE_KEY, controller, average_key)
self[REF_LEVEL_KEY] = ref_level
self[BASEBAND_FREQ_KEY] = baseband_freq
self[RUNNING_KEY] = True
+ self[USE_PERSISTENCE_KEY] = use_persistence
+ self[PERSIST_ALPHA_KEY] = persist_alpha
+ for trace in TRACES:
+ #a function that returns a function
+ #so the function wont use local trace
+ def new_store_trace(my_trace):
+ def store_trace(*args):
+ self._traces[my_trace] = self.samples
+ self.update_grid()
+ return store_trace
+ def new_toggle_trace(my_trace):
+ def toggle_trace(toggle):
+ #do an automatic store if toggled on and empty trace
+ if toggle and not len(self._traces[my_trace]):
+ self._traces[my_trace] = self.samples
+ self.update_grid()
+ return toggle_trace
+ self._traces[trace] = EMPTY_TRACE
+ self[TRACE_STORE_KEY+trace] = False
+ self[TRACE_SHOW_KEY+trace] = False
+ self.subscribe(TRACE_STORE_KEY+trace, new_store_trace(trace))
+ self.subscribe(TRACE_SHOW_KEY+trace, new_toggle_trace(trace))
#init panel and plot
wx.Panel.__init__(self, parent, style=wx.SIMPLE_BORDER)
self.plotter = plotter.channel_plotter(self)
self.plotter.enable_legend(True)
self.plotter.enable_point_label(True)
self.plotter.enable_grid_lines(True)
+ self.plotter.set_use_persistence(use_persistence)
+ self.plotter.set_persist_alpha(persist_alpha)
#setup the box with plot and controls
self.control_panel = control_panel(self)
main_box = wx.BoxSizer(wx.HORIZONTAL)
main_box.Add(self.control_panel, 0, wx.EXPAND)
self.SetSizerAndFit(main_box)
#register events
- self.subscribe(AVERAGE_KEY, lambda x: self._reset_peak_vals())
+ self.subscribe(AVERAGE_KEY, self._reset_peak_vals)
self.subscribe(MSG_KEY, self.handle_msg)
self.subscribe(SAMPLE_RATE_KEY, self.update_grid)
for key in (
Y_PER_DIV_KEY, X_DIVS_KEY,
Y_DIVS_KEY, REF_LEVEL_KEY,
): self.subscribe(key, self.update_grid)
+ self.subscribe(USE_PERSISTENCE_KEY, self.plotter.set_use_persistence)
+ self.subscribe(PERSIST_ALPHA_KEY, self.plotter.set_persist_alpha)
#initial update
self.update_grid()
+
def autoscale(self, *args):
"""
Autoscale the fft plot to the last frame.
Set the dynamic range and reference level.
"""
if not len(self.samples): return
- #get the peak level (max of the samples)
- peak_level = numpy.max(self.samples)
- #get the noise floor (averge the smallest samples)
- noise_floor = numpy.average(numpy.sort(self.samples)[:len(self.samples)/4])
- #padding
- noise_floor -= abs(noise_floor)*.5
- peak_level += abs(peak_level)*.1
- #set the reference level to a multiple of y divs
- self[REF_LEVEL_KEY] = self[Y_DIVS_KEY]*math.ceil(peak_level/self[Y_DIVS_KEY])
+ min_level, max_level = common.get_min_max_fft(self.samples)
#set the range to a clean number of the dynamic range
- self[Y_PER_DIV_KEY] = common.get_clean_num((peak_level - noise_floor)/self[Y_DIVS_KEY])
+ self[Y_PER_DIV_KEY] = common.get_clean_num(1+(max_level - min_level)/self[Y_DIVS_KEY])
+ #set the reference level to a multiple of y per div
+ self[REF_LEVEL_KEY] = self[Y_PER_DIV_KEY]*round(.5+max_level/self[Y_PER_DIV_KEY])
- def _reset_peak_vals(self): self.peak_vals = NO_PEAK_VALS
+ def _reset_peak_vals(self, *args): self.peak_vals = EMPTY_TRACE
def handle_msg(self, msg):
"""
samples = numpy.fromstring(msg, numpy.float32)[:self.fft_size] #only take first frame
num_samps = len(samples)
#reorder fft
- if self.real: samples = samples[:num_samps/2]
- else: samples = numpy.concatenate((samples[num_samps/2:], samples[:num_samps/2]))
+ if self.real: samples = samples[:(num_samps+1)/2]
+ else: samples = numpy.concatenate((samples[num_samps/2+1:], samples[:(num_samps+1)/2]))
self.samples = samples
#peak hold calculation
if self[PEAK_HOLD_KEY]:
The x axis depends on sample rate, baseband freq, and x divs.
The y axis depends on y per div, y divs, and ref level.
"""
+ for trace in TRACES:
+ channel = '%s'%trace.upper()
+ if self[TRACE_SHOW_KEY+trace]:
+ self.plotter.set_waveform(
+ channel=channel,
+ samples=self._traces[trace],
+ color_spec=TRACES_COLOR_SPEC[trace],
+ )
+ else: self.plotter.clear_waveform(channel=channel)
#grid parameters
sample_rate = self[SAMPLE_RATE_KEY]
baseband_freq = self[BASEBAND_FREQ_KEY]
projects / debian / gnuradio / blobdiff