class LEDDemo(HasTraits):
# A counter to display:
counter1 = Int
# A floating point value to display:
counter2 = Float
# The traits view:
view = View(
Item('counter1',
label='Left aligned',
editor=LEDEditor(alignment='left')
),
Item('counter1',
label='Center aligned',
editor=LEDEditor(alignment='center')
),
Item('counter1',
label='Right aligned',
editor=LEDEditor() # default = 'right' aligned
),
Item('counter2',
label='Float value',
editor=LEDEditor(format_str='%.3f')
),
'_',
HGroup(
Item('counter1',
label='Left',
height=-40,
width=120,
editor=LEDEditor(alignment='left')
),
spring,
Item('counter1',
label='Center',
height=-40,
width=120,
editor=LEDEditor(alignment='center')
),
spring,
Item('counter1',
label='Right',
height=-40,
width=120,
editor=LEDEditor() # default = 'right' aligned
),
spring,
Item('counter2',
label='Float',
height=-40,
width=120,
editor=LEDEditor(format_str='%.3f')
)
),
title='LED Editor Demo',
buttons=['OK'],
handler=LEDDemoHandler
)
class WattsUp( HasTraits ):
power = Float(0.0,
label='Watts', height=-40,
editor=LEDEditor(format_str='%5.1f') )
voltage = Float(0.0,
label='Volts', height=-40,
editor=LEDEditor(format_str='%5.1f') )
current = Float(0.0,
label='Amps', height=-40,
editor=LEDEditor(format_str='%5.3f') )
interval = Int(1,
desc='Sample interval in seconds',
label='Sample interval (s)')
mode = Enum('Simulated', 'External', 'Internal',
desc='Meter logging mode',
label='Mode')
port = String('/dev/tty.usbserial-A1000wT3',
desc='Serial port location',
label='Serial port')
button_label = String('Start')
start = Event
logging_thread = Instance(LoggingThread)
figure = Instance(Figure, ())
def update_data(self, W, V, A):
self.power = W
self.voltage = V
self.current = A
def _figure_default(self):
figure = Figure()
figure.add_axes([0.1, 0.15, 0.5, 0.75])
return figure
def _start_fired(self):
if self.logging_thread and self.logging_thread.isAlive():
self.logging_thread.wants_abort = True
self.button_label = 'Start'
else:
self.logging_thread = LoggingThread()
self.logging_thread.wants_abort = False
self.logging_thread.update_data = self.update_data
self.logging_thread.plot_power = self.plot_power
self.logging_thread.figure = self.figure
self.logging_thread.start()
self.button_label = 'Stop'
def plot_power(self, p):
t = np.linspace(0, len(p) / 60.0, len(p)) # should multiply by interval
# print t.size, len(p)
self.figure.axes[0].clear()
self.figure.axes[0].plot(t, p, 'r')
self.figure.axes[0].set_xlabel('Time (minutes)')
self.figure.axes[0].set_ylabel('Power (W)')
wx.CallAfter(self.figure.canvas.draw)
view = View(HSplit(Group(Item('power', height=-40),
Item('voltage', height=-40),
Item('current', height=-40),
'interval', 'mode', 'port',
Item('start', label='Logging',
editor=ButtonEditor(label_value='button_label'))),
Item('figure', editor=MPLFigureEditor(),
dock='vertical', height=-400, width=-800,
resizable=True),
show_labels=False))