1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
#
# Copyright 2009 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.
#
##################################################
# Imports
##################################################
import plotter
import common
import wx
import numpy
import math
import pubsub
from constants import *
from gnuradio import gr #for gr.prefs
##################################################
# Constants
##################################################
DEFAULT_WIN_SIZE = (600, 300)
##################################################
# histo window control panel
##################################################
class control_panel(wx.Panel):
"""
A control panel with wx widgits to control the plotter and histo sink.
"""
def __init__(self, parent):
"""
Create a new control panel.
@param parent the wx parent window
"""
self.parent = parent
wx.Panel.__init__(self, parent, style=wx.SUNKEN_BORDER)
control_box = wx.BoxSizer(wx.VERTICAL)
SIZE = (100, -1)
control_box.Add(common.LabelText(self, 'Options'), 0, wx.ALIGN_CENTER)
control_box.AddStretchSpacer()
#num bins
def num_bins_cast(num):
num = int(num)
assert num > 1
return num
num_bins_ctrl = common.TextBoxController(self, parent, NUM_BINS_KEY, cast=num_bins_cast)
control_box.Add(common.LabelBox(self, ' Num Bins ', num_bins_ctrl), 0, wx.EXPAND)
control_box.AddStretchSpacer()
#frame size
frame_size_ctrl = common.TextBoxController(self, parent, FRAME_SIZE_KEY, cast=num_bins_cast)
control_box.Add(common.LabelBox(self, ' Frame Size ', frame_size_ctrl), 0, wx.EXPAND)
control_box.AddStretchSpacer()
#run/stop
self.run_button = common.ToggleButtonController(self, parent, RUNNING_KEY, 'Stop', 'Run')
control_box.Add(self.run_button, 0, wx.EXPAND)
#set sizer
self.SetSizerAndFit(control_box)
##################################################
# histo window with plotter and control panel
##################################################
class histo_window(wx.Panel, pubsub.pubsub):
def __init__(
self,
parent,
controller,
size,
title,
maximum_key,
minimum_key,
num_bins_key,
frame_size_key,
msg_key,
):
pubsub.pubsub.__init__(self)
#setup
self.samples = list()
#proxy the keys
self.proxy(MAXIMUM_KEY, controller, maximum_key)
self.proxy(MINIMUM_KEY, controller, minimum_key)
self.proxy(NUM_BINS_KEY, controller, num_bins_key)
self.proxy(FRAME_SIZE_KEY, controller, frame_size_key)
self.proxy(MSG_KEY, controller, msg_key)
#init panel and plot
wx.Panel.__init__(self, parent, style=wx.SIMPLE_BORDER)
self.plotter = plotter.bar_plotter(self)
self.plotter.SetSize(wx.Size(*size))
self.plotter.set_title(title)
self.plotter.enable_point_label(True)
self.plotter.enable_grid_lines(False)
#setup the box with plot and controls
self.control_panel = control_panel(self)
main_box = wx.BoxSizer(wx.HORIZONTAL)
main_box.Add(self.plotter, 1, wx.EXPAND)
main_box.Add(self.control_panel, 0, wx.EXPAND)
self.SetSizerAndFit(main_box)
#initialize values
self[NUM_BINS_KEY] = self[NUM_BINS_KEY]
self[FRAME_SIZE_KEY] = self[FRAME_SIZE_KEY]
self[RUNNING_KEY] = True
self[X_DIVS_KEY] = 8
self[Y_DIVS_KEY] = 4
#register events
self.subscribe(MSG_KEY, self.handle_msg)
self.subscribe(X_DIVS_KEY, self.update_grid)
self.subscribe(Y_DIVS_KEY, self.update_grid)
def handle_msg(self, msg):
"""
Handle the message from the fft sink message queue.
@param msg the frame as a character array
"""
if not self[RUNNING_KEY]: return
#convert to floating point numbers
self.samples = 100*numpy.fromstring(msg, numpy.float32)[:self[NUM_BINS_KEY]] #only take first frame
self.plotter.set_bars(
bars=self.samples,
bar_width=0.6,
color_spec=(0, 0, 1),
)
self.update_grid()
def update_grid(self):
if not len(self.samples): return
#calculate the maximum y value
y_off = math.ceil(numpy.max(self.samples))
y_off = min(max(y_off, 1.0), 100.0) #between 1% and 100%
#update the x grid
self.plotter.set_x_grid(
self[MINIMUM_KEY], self[MAXIMUM_KEY],
common.get_clean_num((self[MAXIMUM_KEY] - self[MINIMUM_KEY])/self[X_DIVS_KEY]),
)
self.plotter.set_x_label('Counts')
#update the y grid
self.plotter.set_y_grid(0, y_off, y_off/self[Y_DIVS_KEY])
self.plotter.set_y_label('Frequency', '%')
self.plotter.update()
|
