def __UpdateColorsAndOffset(self):
if self.__seq is None:
return
if self.__t is None:
self.__t = time.time()
t = time.time()
self.__offset += (t - self.__t) * self.__speed
self.__t = t
while self.__offset >= 1.0:
try:
c = self.__seq.next()
except StopIteration:
self.__seq = None
break
self.InsertAndPop(c)
self.__offset -= 1.0
def __updateColorsAndOffset(self):
if self.__seq is None:
return
if self.__t is None:
self.__t = time.time()
t = time.time()
self.__offset += (t - self.__t) * self.__speed
self.__t = t
while self.__offset >= 1.0:
try:
c = self.__seq.next()
except StopIteration:
self.__seq = None
break
self.insertAndPop(c)
self.__offset -= 1.0
def __GeneratePositions(self, max_index):
t = time.time()
if self.__t0 is None:
self.__t0 = t
dt = t - self.__t0
max_pos = max_index + self.__radius
repeats = int(dt / self.__add_delay)
dt -= repeats * self.__add_delay
i = 0
p = -self.__radius + self.__speed * dt
while i <= repeats and p <= max_pos:
yield p
p += self.__interval
i += 1
def __generatePositions(self, maxIndex): t = time.time() if self.__t0 is None: self.__t0 = t dt = t - self.__t0 maxPos = maxIndex + self.__radius repeats = int(dt / self.__addDelay) dt -= repeats*self.__addDelay i = 0 p = -self.__radius + self.__speed*dt while i <= repeats and p <= maxPos: yield p p += self.__interval i += 1
# SendingBuffer has a list of Color objects and encapsulates
# requisite logic for generating bytes and sending.
# For simulating, TurtleBuffer subclasses SendingBuffer and
# draws to the screen using Turtle Graphics as well.
if DRAW:
sendingColorBuffer = TurtleBuffer(sender=sender)
else:
sendingColorBuffer = SendingBuffer(sender=sender)
# Put some known colors at the beginning.
for c in Sequences.GetSentinels():
sendingColorBuffer.insertAndPop(c)
for c in colorSequence:
t = time.time()
# Insert the next color into one end of the strip (and
# pop the oldest color from the other end).
sendingColorBuffer.insertAndPop(c)
"""
insertAndPop, see Buffer.py
Insert the given Color into the beginning (index 0) of the color
list, and pop a Color from the end (maintaining size).
"""
# Send the updated colors to the Arduino.
sendingColorBuffer.send(data_receiver_color_key="COLOR2")
sendingColorBuffer.send(data_receiver_color_key="COLORS")
sys.stdout.write('.')
sys.stdout.flush()
speed=5.0))
color_sender.Append(Pulser(
color=Color(rgb=(0, 0, 1)),
reverse=True,
add_delay=3.0))
# Open the serial device (connection to the Arduino).
if DUMMY_SERIAL:
serial_sender = data_sender.DummySender(SERIAL_DEVICE, silent=True)
else:
serial_sender = data_sender.Sender(SERIAL_DEVICE)
with serial_sender:
color_sender.SetSender(serial_sender)
t = time.time()
actual_trials = 0
exc_count = 0
# Continue updating until all the Patterns expire.
# If this does not happen, wait for control-C.
print 'Type ^C (hold control, press c) to stop.'
try:
while True:
actual_trials += 1
try:
color_sender.UpdateAndSend() # Uses serial_sender to send the colors.
serial_sender.ReadAndPrint() # Reads any responses from the Arduino.
except data_sender.TimeoutError as e:
print 'Timeout waiting for acknowledgement during read/write.'
exc_count += 1
# SendingBuffer has a list of Color objects and encapsulates
# requisite logic for generating bytes and sending.
# For simulating, TurtleBuffer subclasses SendingBuffer and
# draws to the screen using Turtle Graphics as well.
if DRAW:
sending_color_buffer = TurtleBuffer(sender=sender)
else:
sending_color_buffer = SendingBuffer(sender=sender)
# Put some known colors at the beginning.
for c in sequences.GetSentinels():
sending_color_buffer.InsertAndPop(c)
for c in color_sequence:
t = time.time()
# Insert the next color into one end of the strip (and
# pop the oldest color from the other end).
sending_color_buffer.InsertAndPop(c)
# Send the updated colors to the Arduino.
sending_color_buffer.Send()
sys.stdout.write('.')
sys.stdout.flush()
sender.ReadAndPrint()
dt += time.time() - t
print 'Elapsed per %d updates: %.2fs' % (TRIALS, dt)
