def __init__(self, root, subplots, title=''):
ttk.Frame.__init__(self, root)
self.signal_mouse_press = Signal()
self.signal_mouse_release = Signal()
self._fig = Figure()
self._subplots = []
self._canvas = FigureCanvas(self._fig, self)
self._canvas.get_tk_widget().pack(expand=tk.YES, fill=tk.BOTH)
self._canvas.mpl_connect('button_press_event', self.signal_mouse_press)
self._canvas.mpl_connect('button_release_event',
self.signal_mouse_release)
toolbar = NavigationToolbar2Tk(self._canvas, self)
toolbar.update()
num_rows = len(subplots)
num_columns = max(len(graphs) for graphs in subplots)
for i in range(num_rows):
for j in range(num_columns):
subplot = subplots[i][j]
if subplot is not None:
index = (i * num_columns) + j + 1
ax = self._fig.add_subplot(num_rows, num_columns, index)
subplot.set_axis(ax)
self._subplots.append(subplot)
self._fig.suptitle(title,
fontweight='bold',
fontsize=self.DEFAULT_TITLE_SIZE)
self._fig.subplots_adjust(hspace=.6, wspace=.3)
def __init__(self, text, action, pos=(0, 0), size=(100, 40)):
super(Button, self).__init__(pos, size)
self.click = Signal()
self.unclick = Signal()
self.font = Font('Arial')
self.bgcolor = (110, 110, 110, 255)
self.hmargin = 5
self.vmargin = 5
self.pressed = False
self.label = Label(text, self.font)
self.label.resize((self.width - 2 * self.hmargin,
self.height - 2 * self.vmargin))
self.label.move_to(self.pos)
self.label.move((self.hmargin, self.vmargin))
self.queue.add(self.label)
self.click.connect(self._clicked)
self.unclick.connect(self._unclicked)
self.click.connect(action)
class TasklistEvents(sublime_plugin.EventListener):
def filter_events(mth):
from functools import wraps
@wraps(mth)
def wrapped(self, view):
if view.window() and view.file_name():
return mth(self, view)
return wrapped
loaded = Signal()
@filter_events
def on_load(self, view):
self.loaded(view)
closed = Signal()
@filter_events
def on_close(self, view):
self.closed(view)
activated = Signal()
@filter_events
def on_activated(self, view):
self.activated(view)
def __init__(self, parent=None, **kwargs):
ttk.Frame.__init__(self, parent)
self.signal_delete = Signal()
self.signal_up = Signal()
self.signal_down = Signal()
self.signal_select = Signal()
frm = ttk.Frame(self)
self.lbox = tk.Listbox(frm, selectmode=tk.SINGLE, **kwargs)
self.sbar = ttk.Scrollbar(frm)
self.hsbar = ttk.Scrollbar(self, orient=tk.HORIZONTAL)
self.hsbar.config(command=self.lbox.xview)
self.sbar.config(command=self.lbox.yview)
self.lbox.config(xscrollcommand=self.hsbar.set)
self.lbox.config(yscrollcommand=self.sbar.set)
self.lbox.config(selectmode=tk.SINGLE)
self.sbar.pack(side=tk.RIGHT, fill=tk.Y)
self.hsbar.pack(side=tk.BOTTOM, fill=tk.X)
self.lbox.pack(side=tk.LEFT, expand=tk.YES, fill=tk.BOTH)
frm.pack(expand=tk.YES, fill=tk.BOTH)
self.lbox.bind(
'<Delete>', lambda event: self.signal_delete()
if self.lbox.size() >= 1 else None)
self.lbox.bind('<Button-1>', lambda event: self.after(20, self._click))
self.lbox.bind('<Up>', lambda event: self.signal_up())
self.lbox.bind('<Down>', lambda event: self.signal_down())
def get_imag_test_signal(show=True):
w = 2 * np.pi * np.array([-0.4, -0.26, -0.18, -0.1, 0.15, 0.36])
alpha = np.array([1.83, 1.87, 1.65, 1.55, 1.12, 1.1])
y = generate_signal(w=w, sigma_n=0.5)
sig = Signal(y=y, n=len(w), w=w, alpha=alpha, sigma_n=0.5)
sig.plot_spectar(plt) if show else None
return sig
def get_real_test_signal(show=True):
w = 2 * np.pi * np.array([-0.4, -0.2, -0.15, 0, 0.15, 0.2, 0.4])
alpha = np.array([1, 0.7, 1.2, 0.5, 1.2, 0.7, 1])
y = generate_signal(w=w, alpha=alpha, sigma_n=1)
sig = Signal(y=y, n=len(w), w=w, alpha=alpha, sigma_n=1)
sig.plot_spectar(plt) if show else None
return sig
def test_get_frequencies_valid_signal(self):
cosine_signal = Signal.generate_cosine(4, 60)
cosine_frequencies = cosine_signal.get_frequencies()
self.assertTrue(cosine_frequencies.size == 240)
random_signal = Signal.generate_random(2, 100)
random_frequencies = random_signal.get_frequencies()
self.assertTrue(random_frequencies.size == 200)
def get_signal_with_large_n(show=True):
n = 50
w = 2 * np.pi * (np.arange(n) / n - 0.5)
alpha = np.random.uniform(low=0.1, high=2, size=(n, ))
y = generate_signal(w=w, alpha=alpha, sigma_n=1, N=400)
sig = Signal(y=y, n=n, w=w, alpha=alpha, sigma_n=1)
sig.plot_spectar(plt) if show else None
return sig
def test_get_frequencies_invalid_signal(self):
empty_signal = Signal()
with self.assertRaises(TypeError):
empty_signal.get_frequencies()
with self.assertRaises(ValueError):
empty_signal.signal = np.array([])
empty_signal.get_frequencies()
with self.assertRaises(TypeError):
empty_signal.signal = 1
empty_signal.get_frequencies()
def test_re_discretise_signal_valid_signal_up_sample(self):
random_signal = Signal.generate_random(2, 60)
cosine_signal = Signal.generate_cosine(3, 60)
random_resampled, cosine_resampled = random_signal.get_re_discretised_signal(
cosine_signal)
self.assertEqual(len(cosine_resampled), 180)
self.assertEqual(len(random_resampled), len(cosine_resampled))
self.assertFalse(np.array_equal(random_signal.signal,
random_resampled))
self.assertTrue(np.array_equal(cosine_signal.signal, cosine_resampled))
def test_re_discretise_signal_valid_signal_down_sample(self):
random_signal = Signal.generate_random(2, 60)
cosine_signal = Signal.generate_cosine(3, 60)
random_resampled, cosine_resampled = random_signal.get_re_discretised_signal(
cosine_signal, ResamplingType.DOWN_SAMPLE)
self.assertEqual(len(cosine_resampled), 120)
self.assertEqual(len(random_resampled), len(cosine_resampled))
self.assertTrue(np.array_equal(random_signal.signal, random_resampled))
self.assertFalse(np.array_equal(cosine_signal.signal,
cosine_resampled))
def test_generate_cosine_invalid_sample_time(self):
with self.assertRaises(ValueError):
Signal.generate_cosine(0, 60)
with self.assertRaises(ValueError):
Signal.generate_cosine(-2, 60)
with self.assertRaises(TypeError):
Signal.generate_cosine(2.0, 60)
with self.assertRaises(TypeError):
Signal.generate_cosine(None, 60)
with self.assertRaises(TypeError):
Signal.generate_cosine("I shouldn't be a string", 60)
def test_generate_cosine_invalid_sampling_rate(self):
with self.assertRaises(ValueError):
Signal.generate_cosine(2, -60)
with self.assertRaises(ValueError):
Signal.generate_cosine(2, 0)
with self.assertRaises(TypeError):
Signal.generate_cosine(2, 60.0)
with self.assertRaises(TypeError):
Signal.generate_cosine(2, None)
with self.assertRaises(TypeError):
Signal.generate_cosine(2, "I shouldn't be a string either")
def ReInitUI(self):
if self.layoutData is None:
return
if 'layoutName' in self.layoutData:
self.SetTitle(self.layoutData['layoutName'])
if "gridOn" in self.layoutData.keys():
if 1 == self.layoutData['gridOn']:
self.gridOn = True
if "fastClockAddress" in self.layoutData.keys():
self.fcAddress = int(str(self.layoutData['fastClockAddress']), 0)
for text in self.layoutData['text']:
newCell = TextCell()
newCell.setText(text['value'])
x = int(text['x'])
y = int(text['y'])
newCell.setXY(x, y)
if text['type'] == 'blockname':
newCell.setColor('#ccffff')
self.cells.append(newCell)
for signalconfig in self.layoutData['signals']:
newSignal = Signal(signalconfig, self.txPacket)
self.signals.append(newSignal)
self.cells = self.cells + newSignal.getCells()
self.clickables[newSignal.getClickXY()] = newSignal.onLeftClick
for switchconfig in self.layoutData['switches']:
newSwitch = Switch(switchconfig, self.txPacket)
self.switches.append(newSwitch)
self.cells = self.cells + newSwitch.getCells()
self.clickables[newSwitch.getClickXY()] = newSwitch.onLeftClick
for blockconfig in self.layoutData['blocks']:
newBlock = Block(blockconfig, self.txPacket, self.cellXY)
self.blocks.append(newBlock)
self.cells = self.cells + newBlock.getCells()
for cell in self.cells:
# Build a cell finder
self.cellXY[(cell.cell_x, cell.cell_y)] = cell
for cpconfig in self.layoutData['controlPoints']:
if cpconfig['type'] == 'cp3':
newCP = ControlPoint_CP3(cpconfig, self.txPacket,
self.getRailroadObject)
else:
newCP = ControlPoint(cpconfig, self.txPacket,
self.getRailroadObject)
self.controlpoints.append(newCP)
def create_signals(self, inputs, outputs):
# This took way to long to perfect...
for i in range(self.height):
if i % (self.height // (inputs + 1)) == 0 and i != 0 and len(
self.inputs) < inputs:
self.inputs.append(
Signal(self.pos.x, self.pos.y + i,
constants.CHIP_SIGNAL_RADIUS))
if i % (self.height // (outputs + 1)) == 0 and i != 0 and len(
self.outputs) < outputs:
self.outputs.append(
Signal(self.pos.x + self.width, self.pos.y + i,
constants.CHIP_SIGNAL_RADIUS))
def test_re_discretise_signal_does_not_change_if_same_length(self):
random_signal = Signal.generate_random(2, 60)
cosine_signal = Signal.generate_cosine(2, 60)
random_resampled, cosine_resampled = random_signal.get_re_discretised_signal(
cosine_signal)
self.assertEqual(random_signal.signal.shape[0], len(cosine_resampled))
self.assertTrue(np.array_equal(cosine_signal.signal, cosine_resampled))
self.assertTrue(np.array_equal(random_signal.signal, random_resampled))
random_resampled, cosine_resampled = random_signal.get_re_discretised_signal(
cosine_signal, ResamplingType.DOWN_SAMPLE)
self.assertEqual(random_signal.signal.shape[0], len(cosine_resampled))
self.assertTrue(np.array_equal(cosine_signal.signal, cosine_resampled))
self.assertTrue(np.array_equal(random_signal.signal, random_resampled))
def __init__(self, parent=None, **kwargs):
self.signal_select = Signal()
self.signal_delete = Signal()
self._cur_selection = None
self._unsorted_to_sorted_index = []
self._sorted_to_unsorted_index = []
self._data = []
self._sorted_data = []
self._wrapper = KeyWrapper(self._sorted_data)
self._gui = ListChoiceGUI(parent, **kwargs)
self._gui.signal_select.connect(self._on_select)
self._gui.signal_delete.connect(self.signal_delete)
self._gui.signal_up.connect(self._up)
self._gui.signal_down.connect(self._down)
def __getattr__(self, name):
if name == 'signal':
self.signal = Signal(request)
else:
raise Exception('Attribute not found %s' % name)
return self.__getattribute__(name)
class LineEdit(Widget):
def __init__(self, pos=(0, 0), size=(100, 40)):
super(LineEdit, self).__init__(pos, size)
self.keydown = Signal()
self.font = Font('Arial')
self.bgcolor = (80, 80, 80, 255)
self.blinktime = 700
self.hmargin = 2
self.vmargin = 2
self.label = Label('', self.font)
self.label.resize((self.width - 2 * self.hmargin,
self.height - 2 * self.vmargin))
self.label.move_to(self.pos)
self.label.move((self.hmargin, self.vmargin))
self.queue.add(self.label)
self.keydown.connect(self.on_keyDown)
def on_keyDown(self, key, mod, u):
if key == pygame.K_BACKSPACE:
self.remove()
else:
self.add(u)
def add(self, letter):
if self.label.get_font_width(self.label.text + letter) <= \
self.width - 2 * self.hmargin:
self.label.text += letter
def remove(self):
self.label.text = self.label.text[:-1]
def draw(self, surf):
super(LineEdit, self).draw(surf)
if ((pygame.time.get_ticks() / self.blinktime % 2 == 0) or
(not self.focus)):
x = self.label.pos[0] + self.label.get_font_width()
y1 = self.label.pos[1]
y2 = y1 + self.label.height - self.vmargin
pygame.draw.line(surf, (0, 0, 0, 255), (x, y1), (x, y2))
def event(self, name):
if name in self._events:
return self._events[name]
signal = Signal()
signal += lambda *a, **k: self.send(name, *a, **k)
self._events[name] = signal
return signal
def test_compute_distance_compatible(self):
# Test cosine vs cosine
cosine_signal = Signal.generate_cosine(2, 60)
cosine_signal2 = Signal.generate_cosine(7, 43)
self.assertAlmostEqual(cosine_signal.compute_distance(cosine_signal),
0.0)
self.assertAlmostEqual(cosine_signal.compute_distance(cosine_signal2),
244.05038, 5)
# Test random vs random
random_signal = Signal.generate_random(2, 60)
random_signal2 = Signal.generate_random(2, 120)
self.assertAlmostEqual(random_signal.compute_distance(random_signal),
0.0)
self.assertTrue(random_signal.compute_distance(random_signal2) > 0.0)
# Test cosine vs random
self.assertTrue(cosine_signal.compute_distance(random_signal) > 0.0)
def create_scenario(self):
"""
Create the scenrario here, some of this could be moved to an __init__
"""
road_data = Road.generate_random_road_data()
self.road = Road(**road_data)
# determine number of signals to create
num_signals = int(self.road.length / 4)
self.signals = []
for x in range(1, num_signals):
data = Signal.generate_random_signal_data(x, self.road.length)
signal = Signal(**data)
self.signals.append(signal)
vehicle_data = Vehicle.generate_random_vehicle_data()
self.vehicle = Vehicle(**vehicle_data)
def __init__(self, index, source, cam_config):
self.cam_is_run = False
self.__cam_index = index
self.cfg = cam_config
if type(source) == unicode:
source = source.encode("UTF-8")
source = source.encode("UTF-8")
self.__source = source
self._notify_list = []
self.cam_thread = c.CamStream()
self.cam_thread.onCaptureUpdate(self._onCapUpdate)
self.cam_thread.onThreadEvent(self._onThreadEvents)
self.cam_thread.start(source)
self.last_triggered = 0
self.cam_thread.schedule(3, 0)
self.stack_frame = StackFrame(40)
self.last_frame = None
self._events = collections.defaultdict(set)
self.signal_mdetect_trig = Signal()
def from_config(cls, city_config_path):
cars_filepath = Path(city_config_path) / cls.CARS_FILE
with open(cars_filepath, 'r') as f:
car_records = json.load(f)
layout_filepath = Path(city_config_path) / cls.LAYOUT_FILE
with open(layout_filepath, 'r') as f:
layout = json.load(f)
schedule_filepath = Path(city_config_path) / cls.SCHEDULE_FILE
with open(schedule_filepath, 'r') as f:
schedule = json.load(f)
lights = {}
roads = {}
cars = {}
for road_record in layout['roads']:
id = road_record['id']
length = road_record['length']
roads[id] = Road(id, length)
for light_record in layout['lights']:
id = light_record['id']
roads_in_ids = light_record['roads_in']
roads_out_ids = light_record['roads_out']
for road_in in roads_in_ids:
roads[road_in].light_out = id
for road_out in roads_out_ids:
roads[road_out].light_in = id
lights[id] = Light(id, roads_in_ids, roads_out_ids)
for car_record in car_records:
id = car_record['id']
road_ids = car_record['roads']
# TODO: Check that the order of roads is possible
cars[id] = Car(id, road_ids)
time_allocated = layout['time_allocated']
for light_record in schedule:
light_id = light_record['light']
signals = []
for signal_record in light_record['signals']:
road_id = signal_record['road']
time = signal_record['time']
signal = Signal(road_id, time)
signals.append(signal)
lights[light_id].signals = signals
return cls(roads, lights, cars, time_allocated)
def test_similarity_fourrier_transform(self):
# Test 1: Two equal cosine signals should be 100% similar
cosine_signal = Signal.generate_cosine(2, 30)
cosine_similarity = cosine_signal.get_similarity_fourrier_transform(
cosine_signal)
self.assertAlmostEqual(cosine_similarity, 1.0)
# Test 2: Cosine signals are pretty similar. Due to resampling and the fact that this method measures difference
# in frequency, two different ones should still be similar
cosine_signal = Signal.generate_cosine(2, 30)
cosine_signal2 = Signal.generate_cosine(4, 433)
cosine_similarity = cosine_signal.get_similarity_fourrier_transform(
cosine_signal2)
self.assertAlmostEqual(cosine_similarity, 1)
# Test 3: Random signals should probably not be too similar or dissimilar
random_signal = Signal.generate_random(2, 60)
random_signal2 = Signal.generate_random(3, 105)
random_similarity = random_signal.get_similarity_fourrier_transform(
random_signal2)
self.assertTrue(0 < random_similarity < 1)
def from_dict(cls, data: dict):
signals = []
if "signals" in data:
for signal in data["signals"]:
signals.append(Signal.from_dict(signal))
return cls(
name=data["name"],
id=data["id"],
bus_id=data["bus_id"],
length=data["length"],
signals=signals,
)
class EventManager(Sender, Receiver):
quiet = False
def __init__(self):
super(EventManager, self).__init__()
self._events = {}
self.on_any_event = Signal()
def notify(self, name, *args, **kw):
if not self.quiet:
if name in self._events:
self._events[name].notify(*args, **kw)
else:
self.send(name, *args, **kw)
receive = notify
def send(self, name, *a, **k):
self.on_any_event.notify(name, a, k)
super(EventManager, self).send(name, *a, **k)
def event(self, name):
if name in self._events:
return self._events[name]
signal = Signal()
signal += lambda *a, **k: self.send(name, *a, **k)
self._events[name] = signal
return signal
def clear_events(self, name=None):
if name:
del self._events[name]
else:
self._events.clear()
def test_similarity_distance_time_warping(self):
# Test 1: Two equal signals should be 100% similar
random_signal = Signal.generate_random(2, 30)
random_similarity = random_signal.get_similarity_distance_time_warping(
random_signal)
self.assertAlmostEqual(random_similarity, 1.0)
cosine_signal = Signal.generate_cosine(2, 30)
cosine_similarity = cosine_signal.get_similarity_distance_time_warping(
cosine_signal)
self.assertAlmostEqual(cosine_similarity, 1.0)
# Test 2: Cosine signals are pretty similar. Due to resampling, two different ones should still be similar but
# not measured as being the same
cosine_signal = Signal.generate_cosine(2, 40)
cosine_signal2 = Signal.generate_cosine(4, 40)
cosine_similarity = cosine_signal.get_similarity_distance_time_warping(
cosine_signal2)
self.assertTrue(cosine_similarity > 0.80)
cosine_signal = Signal.generate_cosine(2, 40)
cosine_signal2 = Signal.generate_cosine(2, 80)
cosine_similarity = cosine_signal.get_similarity_distance_time_warping(
cosine_signal2)
self.assertTrue(cosine_similarity > 0.80)
cosine_signal = Signal.generate_cosine(2, 40)
cosine_signal2 = Signal.generate_cosine(4, 80)
cosine_similarity = cosine_signal.get_similarity_distance_time_warping(
cosine_signal2)
self.assertTrue(cosine_similarity > 0.80)
# Test 3: Random signals should probably not be too similar or dissimilar
random_signal = Signal.generate_random(2, 60)
random_signal2 = Signal.generate_random(3, 105)
random_similarity = random_signal.get_similarity_distance_time_warping(
random_signal2)
self.assertTrue(0 < random_similarity < 1)
def activate_on_window(self, window):
if self.active:
return
self.window = window
self.active = True
if self.take_context:
# Import all current views into this task
self.take_context = False
else:
# close all current views
while self.window.active_view():
self.window.run_command('close')
# open new views into current files
map(self.dict_to_view, self._views)
# Async, post-load actions (wait until all views are loaded)
loaded = Signal()
def load_wait():
loading = any(v.is_loading() for v in window.views())
if loading:
sublime.set_timeout(load_wait, 100)
else:
loaded()
sublime.set_timeout(load_wait, 100)
if self._active_view_ix != -1:
def activate_active_view():
self.window.focus_view(self.window.views()[self._active_view_ix])
loaded.connect(activate_active_view)
def connect_events():
TasklistEvents.loaded.connect(self.add_view)
TasklistEvents.closed.connect(self.remove_view)
TasklistEvents.activated.connect(self.set_active_view)
loaded.connect(connect_events)
def create_signals(self, inputs, outputs):
self.signal_inputs.clear()
self.signal_outputs.clear()
inputs_radius = constants.SIGNAL_RADIUS
outputs_radius = constants.SIGNAL_RADIUS
# Code that resizes radius when the signals are divisible by 8
for i in range(1, inputs):
if i % 8 == 0:
inputs_radius /= 1.5
for i in range(1, outputs):
if i % 8 == 0:
outputs_radius /= 1.5
# This took way to long to perfect...
for i in range(self.area.height):
if i % (self.area.height // (inputs + 1)) == 0 and i != 0 and len(self.signal_inputs) < inputs:
self.signal_inputs.append(Signal(constants.MARGIN, self.area.top + i, inputs_radius))
if i % (self.area.height // (outputs + 1)) == 0 and i != 0 and len(self.signal_outputs) < outputs:
self.signal_outputs.append(Signal(constants.WIDTH - constants.MARGIN, self.area.top + i, outputs_radius))
self.wires.clear() # TEMPORARY
def parse(data: str, *args):
model = cantools.database.load_string(data)
packets = []
for message in model.messages:
signals = []
for signal in message.signals:
signals.append(Signal.from_signal(signal))
packet = Packet.from_message(message, signals)
ecu_type = []
if all(not packet.bus_id.startswith(name) or ecu_type.append(name)
for name in args):
packets.append(packet)
# There should be only one ecu type
assert len(ecu_type) == 1
return DBC(packets=packets), ecu_type[0]
class EventManager (Sender, Receiver):
quiet = False
def __init__ (self):
super (EventManager, self).__init__ ()
self._events = {}
self.on_any_event = Signal ()
def notify (self, name, *args, **kw):
if not self.quiet:
if name in self._events:
self._events [name].notify (*args, **kw)
else:
self.send (name, *args, **kw)
receive = notify
def send (self, name, *a, **k):
self.on_any_event.notify (name, a, k)
super (EventManager, self).send (name, *a, **k)
def event (self, name):
if name in self._events:
return self._events [name]
signal = Signal ()
signal += lambda *a, **k: self.send (name, *a, **k)
self._events [name] = signal
return signal
def clear_events (self, name = None):
if name:
del self._events [name]
else:
self._events.clear ()
def __init__(self, scheduler,
inputs,
output,
name = None,
prop_delay = 0):
super().__init__(scheduler)
self.debug = False
self.inputs = [i.bind(self) for i in inputs]
if output is None:
output = Signal(scheduler)
self.output = output
if name is None:
NAND.__serial__ += 1
name = "NAND%d" % NAND.__serial__
self.name = name
self.prop_delay = prop_delay
def __init__(self, pos=(0, 0), size=(100, 40)):
super(LineEdit, self).__init__(pos, size)
self.keydown = Signal()
self.font = Font('Arial')
self.bgcolor = (80, 80, 80, 255)
self.blinktime = 700
self.hmargin = 2
self.vmargin = 2
self.label = Label('', self.font)
self.label.resize((self.width - 2 * self.hmargin,
self.height - 2 * self.vmargin))
self.label.move_to(self.pos)
self.label.move((self.hmargin, self.vmargin))
self.queue.add(self.label)
self.keydown.connect(self.on_keyDown)
def getKeySequenceSignal(self, key, modifiers=[]):
# Parse modifiers
mods = {"alt": False, "ctrl": False, "shift": False, "meta": False}
for m in modifiers:
m = m.lower()
if m in mods:
mods[m] = True
else:
print "Unknown modifier:", m
# Check if signal for keysequence has been created
for k in self.keysequences:
if k.key == key and k.modifiers == mods:
return k.signal
# Create keysequence and signal
keysequence = KeySequence()
keysequence.key = key
keysequence.modifiers = mods
keysequence.signal = Signal(providing_args=["event"])
self.keysequences.append(keysequence)
return keysequence.signal
def integrate(dop_0, H, Lk, tstep, tf, integrator='euler', dt_func=None, dt_func_data=None):
"""
integrate the Lindblad Master Equation
dop_0 system's initial state as a density operator
H system's Hamiltonian
Lk the sequence of Lindblad operators
tstep simulation step time
tf simulation finish time
integrator 'euler' or 'rk4' for runge-kutta' 4th order method
dt_func a function returning the LME time derivative; if defined
it will be used in place
of the dafult one. Use it to hook
different control algorithms into the integrator
(ie. a controller modulating some Hamiltonian
terms). ! You can still use the
{hamiltonian,lindbladian}_dt functions defined in
this module if you need them.
dt_func_data accessory data that wil be passed to dt_func
"""
# check matrices orders
assert dop_0.ndim == H.ndim == 2
assert dop_0.shape[0] == dop_0.shape[1] == H.shape[0] == H.shape[1]
for L in Lk:
assert L.ndim == dop_0.ndim
assert L.shape[0] == L.shape[1] == dop_0.shape[0]
# check matrices props
assert (dop_0 == dop_0.conj().transpose()).all()
assert numpy.abs(1. - numpy.trace(dop_0)) < 0.000000001
assert (H == H.conj().transpose()).all()
# check timing params
assert (tstep > 0) and (tf >= tstep)
# select integrator
assert integrator in ('euler', 'rk4')
Delta_func = ({'euler' : _Delta_euler, 'rk4' : _Delta_rk4})[integrator]
# default to _dt for calculating LME's time derivative
if not dt_func:
dt_func = _dt
# init simulation loop
max_delta_dop = 0.
algo_start_time = time.time()
algo_last_time = algo_start_time
evo = Signal('Density op. evolution')
integrator_time = 0.
evo.append(integrator_time, dop_0)
integrator_time = integrator_time + tstep
dop = dop_0
while integrator_time <= tf:
# integrator_time may be needed in state tracking controller
delta_dop = Delta_func(dt_func, dt_func_data, integrator_time, dop, H, Lk, tstep)
new_max_delta_dop = numpy.max(numpy.abs(delta_dop))
if new_max_delta_dop > max_delta_dop:
max_delta_dop = new_max_delta_dop
dop = dop + delta_dop
#TODO: should print out a measure of the 'drift' from 'hermitianicity'
#assert (dop == dop.conj().transpose()).all()
#assert numpy.trace(dop) == 1
evo.append(integrator_time,dop)
integrator_time = integrator_time + tstep
if (time.time() - algo_last_time) > 20.:
algo_last_time = time.time()
progress = integrator_time/float(tf)*100.
ETA_min = (algo_last_time - algo_start_time) \
/integrator_time*(tf - integrator_time)/60.
print 'in lme.sim: %d%%, ETA: %.1fmin' % (progress, ETA_min)
if max_delta_dop > 0.001:
print ' ! warning in lme.sim, max_delta_dop: ', max_delta_dop
return evo
def notify (self, *args, **kws):
name = self._observer_signal_name
obj = self._observer_signal_obj
obj.send (name, *args, **kws)
return Signal.notify (self, *args, **kws)
def __init__ (self):
super (EventManager, self).__init__ ()
self._events = {}
self.on_any_event = Signal ()
