def main():
p = pyaudio.PyAudio()
stream = p.open(format=pyaudio.paFloat32,
channels=1,
rate=SRATE,
frames_per_buffer=CHUNK,
output=True)
delay = Delay(3.0)
kb = kbhit.KBHit()
c = ' '
numBloque = 0
while c != 'q':
c = ' '
bloque = delay.getNextChunk(
generateChunk(500.0, CHUNK, numBloque * CHUNK))
print(bloque)
stream.write(bloque.astype(np.float32).tobytes())
if kb.kbhit():
c = kb.getch()
numBloque += 1
kb.set_normal_term()
stream.stop_stream()
stream.close()
p.terminate()
def __init__(self):
rospy.loginfo("Creating Obj3DDetector class")
# flags and vars
self.ph_model = image_geometry.PinholeCameraModel()
self.tracked_pixel = Point()
self.use_kb = False
self.ball_radius = 0
self.p_ball_to_cam = []
self.bridge = CvBridge()
self.tb_val = self.window_with_trackbars('image_red', GREEN_TB_DEFAULTS, GREEN_TB_HIGHS)
# Get and set params
self.get_and_set_params()
# kbhit instance
self.kb = kbhit.KBHit()
if self.use_kb:
self.print_help()
rospy.on_shutdown(self.kb.set_normal_term)
self.imwritecounter = 0
# subscribers
self.cam_info_sub = rospy.Subscriber("/camera/rgb/camera_info", CameraInfo, self.update_model_cb)
self.msg_filt_rgb_img_sub = message_filters.Subscriber("/camera/rgb/image_color", Image)
self.msg_filt_depth_img_sub = message_filters.Subscriber("/camera/depth_registered/hw_registered/image_rect", Image)
self.t_sync = message_filters.ApproximateTimeSynchronizer([self.msg_filt_rgb_img_sub, self.msg_filt_depth_img_sub], 1, slop = 0.01)
self.t_sync.registerCallback(self.time_sync_img_cb)
# publishers and timers
self.kb_timer = rospy.Timer(rospy.Duration(0.1), self.keycb)
self.start_time = 0
self.tf_br = tf.TransformBroadcaster()
def __init__(self):
rospy.loginfo("Creating SimpleTargets class")
# setup local variables:
self.position = ZERO_POS
self.orientation = ZERO_ORI
self.ee_dot = np.array([0, 0, 0])
self.th = 0.0
self.th_dot = 0.0
self.run_flag = ON
self.run_flag = OFF
# Instantiating keyboard object
self.key = kbhit.KBHit()
rospy.on_shutdown(self.key.set_normal_term)
#Subscribers and Publishers
self.br = tf.TransformBroadcaster()
self.key_timer = rospy.Timer(rospy.Duration(0.01), self.running_cb)
self.js_sub = rospy.Subscriber('/omni1_joint_states', JointState,
self.js_cb)
self.ref_pose_pub = rospy.Publisher('ref_pose', Pose, queue_size=3)
self.integrate_and_pub_timer = rospy.Timer(
rospy.Duration(1 / float(FREQUENCY)), self.timer_cb)
self.listen = tf.TransformListener()
return
def run(self):
frame = 0
t = time.time()
frame_time = 1 / self.framerate
kb = kbhit.KBHit()
print('Move with WASD')
game_start = time.time()
while self.running:
# self.draw_grid()
self.frame += 1
start_time = time.time()
if self.player.cooldown > 0:
self.player.cooldown -= 1
if kb.kbhit():
c = kb.getch()
if ord(c) == 27: # ESC
break
if self.player.cooldown <= 0:
self.player.process_command(c)
for enemy in self.enemies:
enemy.act(self.frame)
for weapon in self.weapons:
weapon.act(self.frame)
wait_time = max([0, frame_time - (time.time() - start_time)])
time.sleep(frame_time)
print("Game Over!")
kb.set_normal_term()
def __init__(self, HOST, PORT):
self.HOST = HOST
self.PORT = PORT
self.kb = kbhit.KBHit()
self.thread_s = threading.Thread(target=self.ClientSend, )
self.thread_a = threading.Thread(target=self.ClientAccept, )
self.body = []
self.food = []
self.Graphic = GraphicGUI()
def main():
# abrimos wav y recogemos frecMuestreo y array de datos
CHUNK = 1024 # tamanio del buffer
data = lab2.osc(1000, 10)
# miramos formato de samples
if data.dtype.name == 'int16': fmt = 2
elif data.dtype.name == 'int32': fmt = 4
elif data.dtype.name == 'float32': fmt = 4
elif data.dtype.name == 'uint8': fmt = 1
else: raise Exception('Not supported')
p = pyaudio.PyAudio()
stream = p.open(format=pyaudio.paFloat32, # formato de los samples
channels=len(data.shape), # num canales (shape de data)
rate=lab2.SRATE, # frecuencia de muestreo
frames_per_buffer=CHUNK, # tamanio buffer
output=True) # stream de salida
# En data tenemos el wav completo, ahora procesamos por bloques (chunks)
numBloque = 0
kb = kbhit.KBHit()
c= ' '
vol = 1.0
volIncr = 0.05
frec = 500
maxfrec = 2000
frecIncr = 5
bloque = lab2.generateChunk(frec, CHUNK, 0)
while c!= 'q':
c = ' '
# nuevo bloque
#bloque = data[ numBloque*CHUNK : numBloque*CHUNK+CHUNK ]
bloque = lab2.generateChunk(frec, CHUNK, bloque[-1])
# modificación del volumen: multiplicacion de todas las muestras * vol
bloque = bloque*vol
#pasamos al stream haciendo conversion de tipo
stream.write(bloque.astype(np.float32).tobytes())
if kb.kbhit():
c = kb.getch()
if (c=='v'): vol= max(0,vol-volIncr)
elif (c=='V'): vol= min(1,vol+volIncr)
elif (c=='f'): frec= max(1/maxfrec,frec-frecIncr)
elif (c=='F'): frec= min(maxfrec,frec+frecIncr)
print("Vol: ",vol)
print("Frec: ",frec)
numBloque += 1
kb.set_normal_term()
stream.stop_stream()
stream.close()
p.terminate()
def escala():
tecla = kb.KBHit().getch()
frec = wf.getframerate()
ok = False
i = 0
if tecla == 'z':
ok = True
elif tecla == 'x':
ok = True
frec = frec * np.power(2, float(2 / 12))
elif tecla == 'c':
ok = True
while i < 2:
frec = frec * np.power(2, float(2 / 12))
i = i + 1
elif tecla == 'v':
ok = True
while i < 2:
frec = frec * np.power(2, float(2 / 12))
i = i + 1
frec = frec * np.power(2, float(1 / 12))
elif tecla == 'b':
ok = True
while i < 3:
frec = frec * np.power(2, float(2 / 12))
i = i + 1
frec = frec * np.power(2, float(1 / 12))
elif tecla == 'n':
ok = True
while i < 3:
frec = frec * np.power(2, float(2 / 12))
i = i + 1
frec = frec * np.power(2, float(1 / 12))
frec = frec * np.power(2, float(2 / 12))
elif tecla == 'm':
ok = True
while i < 3:
frec = frec * np.power(2, float(2 / 12))
i = i + 1
frec = frec * np.power(2, float(1 / 12))
i = 0
while i < 2:
frec = frec * np.power(2, float(2 / 12))
i = i + 1
if ok:
stream = p.open(format=p.get_format_from_width(wf.getsampwidth()),
channels=wf.getnchannels(),
rate=int(frec),
output=True)
stream.write(data)
else:
if tecla != 'q':
print("Las teclas son: z.x.c.v.b.n.m")
def _get_keyboard_verify_code(self):
print('验证码: ', end='', flush=True)
kb = kbhit.KBHit()
code = ''
while not self.done:
if kb.kbhit():
c = kb.getch()
code += c
print(c, end='', flush=True)
if c == '\n':
break
return code
def game_play():
"""
This function collects characters from the keyboard and send them to the server
"""
kb = kbhit.KBHit()
while time.time() < end_time:
try:
if kb.kbhit():
kb.__init__()
s.send(b'.')
print('.', end='')
except:
break
def __init__(self):
rospy.loginfo("Creating BallWatcher class")
self.print_help()
self.objDetector = Obj3DDetector()
# flags and vars
# for ball dropping position
self.kinect_calibrate_flag = False
self.running_flag = False
self.start_calc_flag = False
self.ball_marker = sawyer_mk.MarkerDrawer("/base", "ball", 500)
self.drop_point = Point()
self.drop_point_arr = []
# self.pos_rec_list = np.array([])
self.pos_xyzt = np.array([])
self.drop_point_marker = sawyer_mk.MarkerDrawer(
"/base", "dropping_ball", 500)
self.ik_cont = IKController()
self.robot = URDF.from_parameter_server()
self.kin = KDLKinematics(self.robot, BASE, EE_FRAME)
self.limb_interface = intera_interface.Limb()
self.pos_rec = [
PointStamped() for i in range(2)
] # array 1x2 with each cell storing a PointStamped with cartesian position of the ball in the past two frames
self.old_pos_rec = [PointStamped() for i in range(2)]
self.last_tf_time = rospy.Time()
self.tf_listener = tf.TransformListener()
self.tf_bc = tf.TransformBroadcaster()
self.tf_listener.waitForTransform("base", "camera_link", rospy.Time(),
rospy.Duration(0.5))
self.T_sc_p, self.T_sc_q = self.tf_listener.lookupTransform(
"base", "camera_link", rospy.Time())
self.T_sc = tr.euler_matrix(*tr.euler_from_quaternion(self.T_sc_q))
self.T_sc[0:3, -1] = self.T_sc_p
self.t_min = 0
# kbhit instance
self.kb = kbhit.KBHit()
rospy.on_shutdown(self.kb.set_normal_term)
# publishers and timers
self.kb_timer = rospy.Timer(rospy.Duration(0.1), self.keycb)
self.tf_timer = rospy.Timer(rospy.Duration(0.01), self.tf_update_cb)
self.final_x_total = 0
self.final_y_total = 0
self.init_guess = np.array([])
def __init__(self):
# create all publishers and subscribers:
self.cmd_pub = rospy.Publisher("cmd_vel", Twist, queue_size=1)
self.raw_sub = rospy.Subscriber("cmd_vel_raw", Twist, self.callback, queue_size=10)
self.kb_timer = rospy.Timer(rospy.Duration(0.01), self.keycb)
self.kb = kbhit.KBHit()
rospy.on_shutdown(self.kb.set_normal_term)
#the flag which tells if to publish "cmd_vel"
self.publish_cmd_vel = 1
self.arm_client = actionlib.SimpleActionClient('arm_1/arm_controller/follow_joint_trajectory', FollowJointTrajectoryAction)
return
def main():
srate, data = wavfile.read('piano.wav')
global SRATE
global canPress
SRATE = srate
# miramos formato de samples
if data.dtype.name == 'int16': fmt = 2
elif data.dtype.name == 'int32': fmt = 4
elif data.dtype.name == 'float32': fmt = 4
elif data.dtype.name == 'uint8': fmt = 1
else: raise Exception('Not supported')
p = pyaudio.PyAudio()
stream = p.open(
format=p.get_format_from_width(fmt), # formato de los samples
channels=len(data.shape), # num canales (shape de data)
rate=SRATE, # frecuencia de muestreo
frames_per_buffer=CHUNK, # tamanio buffer
output=True)
# En data tenemos el wav completo, ahora procesamos por bloques (chunks)
bloque = np.arange(CHUNK, dtype=data.dtype)
numBloque = data.shape[0]
kb = kbhit.KBHit()
c = ' '
while True:
# nuevo bloque
bloque = data[numBloque * CHUNK:numBloque * CHUNK + CHUNK]
# pasamos al stream haciendo conversion de tipo
if kb.kbhit() & canPress:
c = kb.getch()
canPress = False
numBloque = 0
numBloque, block = keyboard_Proc(c, bloque, numBloque, kb)
stream.write(block.astype((data.dtype)).tobytes())
numBloque += 1
kb.set_normal_term()
stream.stop_stream()
stream.close()
p.terminate()
def control(head):
directions = {'w': 'up', 's': 'down', 'a': 'left', 'd': 'right'}
keys = {v: k for k, v in directions.items()}
illegal_key = {'w': 's', 's': 'w', 'a': 'd', 'd': 'a'}
kb = kbh.KBHit()
while True:
if kb.kbhit():
c = kb.getch()
if ord(c) == 27:
break
legal = directions.copy()
del legal[illegal_key[keys[head.state]]]
try:
head.state = legal[c]
except:
pass
kb.set_normal_term()
def run(self):
self.print_screen()
kb = kbhit.KBHit()
while self.running:
if kb.kbhit():
c = kb.getch()
if c == "q": # Hit `q` to break out of the loop
self.running = False
self.process_command(c)
self.print_screen()
kb.set_normal_term() # Reset terminal to normal
def __init__(self):
rospy.loginfo("Creating HandControl class")
# Instatiating objects
self.kb = kbhit.KBHit()
rospy.on_shutdown(self.kb.set_normal_term)
self.rh = baxter_interface.Gripper("right")
rospy.sleep(1.0)
self.run_state = ON # Always on
self.gripper_state = OPEN
self.gripper_state = CLOSED
# Subscribers
self.run_flag_sub = rospy.Subscriber('/run_status', Bool, self.run_cb)
self.omni_white_sub = rospy.Subscriber('omni1_button', PhantomButtonEvent, self.omni_white_cb, queue_size=1)
return
def __init__(self):
rospy.loginfo("Creating ReferencePublisher class")
# create flags
self.pub_flag = False
self.controller_flag = False
self.cube_flag = False
self.area_flag = False
self.home_flag = False
self.area_test_flag = False
# get params:
self.get_and_set_params()
# kbhit instance
self.kb = kbhit.KBHit()
rospy.on_shutdown(self.kb.set_normal_term)
# create publisher and timers:
self.ref_pub = rospy.Publisher("ref_pose", PoseStamped, queue_size=3)
self.joints_pub = rospy.Publisher("joint_states",
JointState,
queue_size=3)
self.br = tf.TransformBroadcaster()
self.pub_timer = rospy.Timer(rospy.Duration(self.dt), self.pubtimercb)
self.base_time = rospy.Time.now()
self.kb_timer = rospy.Timer(rospy.Duration(0.1), self.keycb)
# create miscelleneous
self.area_test_count = 0
self.stopwatch_temp = self.stopwatch(0, 0)
self.past_time_array = [0.] * 8
# create service clients
rospy.wait_for_service("reset")
self.reset_client = rospy.ServiceProxy("reset", Empty)
rospy.wait_for_service("random")
self.random_client = rospy.ServiceProxy("random", Empty)
rospy.wait_for_service("toggle_controller")
self.toggle_controller_client = rospy.ServiceProxy(
"toggle_controller", SetBool)
self.print_help()
return
def runCLI(self):
self.__consoleLogger.info((
"Press '%s' to start the program.\n" +
"Press '%s' to exit the program.\n" +
"Press '%s' to pause the program (while still receiving data).\n" +
"Press ''%s to resume the program (to continue processing inpit).")
% (CONST.START_C, CONST.CLOSE_C,
CONST.PAUSE_C, CONST.RESUME_C))
self.__consoleLogger.info('Logs are written in file ' +
self.__infoLog + ' and file ' +
self.__errLog)
kb = kbhit.KBHit()
try:
while True:
try:
if not kb.kbhit():
continue
ch = kb.getch()
if ch == CONST.START_C:
self.__startCLI()
continue
if ch == CONST.CLOSE_C:
break
if ch == CONST.PAUSE_C:
self.__pendCLI()
continue
if ch == CONST.RESUME_C:
self.__resumeCLI()
continue
except KeyboardInterrupt:
self.__consoleLogger.warning('Ctrl-C press, exiting...')
self.__fileLogger.warning('Ctrl-C press caught.')
break
except Exception as e:
self.__consoleLogger.error('Exception caught, stop running.')
self.__fileLogger.error(e)
_, _, tb = sys.exc_info()
traceback.print_tb(tb)
finally:
kb.set_normal_term()
self.__stopCLI()
return None
def input_async(timeout, echo=True):
kb = kbhit.KBHit()
ret = ""
elapsed = 0
while True:
if kb.kbhit():
c = kb.getch().capitalize()
ret += c
if echo == True:
print_part(c)
if c == CR:
break
else:
time.sleep(0.1)
elapsed += 0.1
if elapsed > timeout:
break
return ret
def main():
global dash
dash = robot(getRobotDevice())
kb = kbhit.KBHit()
STOP = 0
FORWARD = 1
BACKWARD = 2
LEFT = 3
RIGHT = 4
k_in = ''
status = STOP
idle = 0
while (k_in != 'x'):
print("Key not pressed") # Do something
if kb.kbhit(): # If a key is pressed:
k_in = kb.getch() # Detect what key was pressed
print("You pressed ", k_in, "!") # Do something
kb.set_normal_term()
dash.disconnect()
def __init__(self):
rospy.loginfo("Creating KeyboardController Class")
# flag
self.start_flag = False
# create broadcaster and listener
self.br = tf.TransformBroadcaster()
self.ln = tf.TransformListener()
# kbhit instance
self.kb = kbhit.KBHit()
self.print_help()
# initialize start point of Pepper
self.p = (0, 0, 0)
self.q = tr.quaternion_from_euler(0, 0, 0, 'sxyz')
# call
rospy.Timer(rospy.Duration(0.3), self.keyboard_cb)
rospy.Timer(rospy.Duration(0.1), self.sendTF_cb)
return
def run(self):
kb = kbhit.KBHit()
print('Starting monitor, press q to exit')
self.bar.update(self.parts_recieved)
while True:
if not self.in_queue.empty():
message = self.in_queue.get()
if message['msg'] == 'PARTS':
self.parts_recieved += 1
self.bar.update(message['parts'])
if message['msg'] == 'END':
break
else:
if kb.kbhit():
c = kb.getch()
if c is 'q': # Press q to exit
print('q pressed')
self.out_queue.put({'msg': 'CLOSE'})
self.bar.finish()
logging.info('MONITOR: Returning')
return
#break
time.sleep(0.1)
def __init__(self):
self.marker_id = rospy.get_param("~marker_id", 12)
self.frame_id = rospy.get_param("~frame_id", "odom_meas")
self.camera_frame_id = rospy.get_param("~camera_frame_id",
"overhead_cam_frame")
self.count = rospy.get_param("~count", 50)
# local vars:
self.calibrate_flag = False
self.calibrated = False
self.calibrate_count = 0
self.kb = kbhit.KBHit()
self.trans_arr = np.zeros((self.count, 3))
self.quat_arr = np.zeros((self.count, 4))
self.trans_ave = np.zeros(3)
self.quat_ave = np.zeros(3)
# now create subscribers, timers, and publishers
self.br = tf.TransformBroadcaster()
self.kb_timer = rospy.Timer(rospy.Duration(0.1), self.keycb)
rospy.on_shutdown(self.kb.set_normal_term)
self.alvar_sub = rospy.Subscriber("ar_pose_marker", AlvarMarkers,
self.alvarcb)
return
def galvoHiLoScan(focus, offset, stripewidth, duration, focusChannel="Dev1/ao0", scanChannel="Dev1/ao1"):
"""Function that will scan the laser through the field of view, discontinuously jumping at certain intervals
in order to make excitation stripes. This could be used the do structured illumination with the IR laser,
which lacks a Pockels cell for intensity modulation.
At the moment, the visible galvo takes 0.45V (0.9V with IR lens) to traverse the field of view.
"""
analog_output = pydaq.Task()
analog_output.CreateAOVoltageChan(focusChannel, "", -5.0, 5.0, pydaq.DAQmx_Val_Volts, None)
analog_output.CreateAOVoltageChan(scanChannel, "", -5.0, 5.0, pydaq.DAQmx_Val_Volts, None)
#scan = np.linspace(-0.600, 0.600, samples) + offset
temp = np.arange(0,75)
temp = np.repeat(temp, np.floor(2048/75))
y = np.linspace(0,1,len(temp))
scan = (y+temp/75.)/2.*1.2 - 0.6 + offset
focus = focus*np.ones(len(scan))
"""."""
samples = len(y)
samplingRate = float(samples)/duration
analog_output.CfgSampClkTiming(None, samplingRate, pydaq.DAQmx_Val_Rising, pydaq.DAQmx_Val_ContSamps, samples)
"""Since the analog out write function has an ouput that is the actual number of samples per channel successfully
written to the buffer, create a variable to store those values: """
temp = (pydaq.c_byte*4)()
actualWritten = pydaq.cast(temp, pydaq.POINTER(pydaq.c_long))
if (focusChannel == "Dev1/ao0"):
writeData = np.concatenate((focus, scan),1)
else:
writeData = np.concatenate((scan, focus),1)
analog_output.WriteAnalogF64(samples, True, -1, pydaq.DAQmx_Val_GroupByChannel, writeData, actualWritten, None)
kb = kbhit.KBHit()
while(True):
if kb.kbhit():
try:
k_in = kb.getarrow()
analog_output.StopTask()
if (k_in == 1):
focus = focus + 0.001
print('offset = %5.3f, focus = %5.3f' % (scan[0], focus[0]))
elif (k_in == 3):
focus = focus - 0.001
print('offset = %5.3f, focus = %5.3f' % (scan[0], focus[0]))
elif (k_in == 0):
scan = scan + 0.001
print('offset = %5.3f, focus = %5.3f' % (scan[0], focus[0]))
elif (k_in == 2):
scan = scan - 0.001
print('offset = %5.3f, focus = %5.3f' % (scan[0], focus[0]))
else:
derp = "derr"
writeData = np.concatenate((focus, scan),1)
analog_output.WriteAnalogF64(samples, False, -1, pydaq.DAQmx_Val_GroupByChannel, writeData, actualWritten, None)
analog_output.StartTask()
#print(k_in, k_in==1)
#I currently can't figure out how to exit gracefully, this exception doesn't allow the function to be called again, as the task is still reserved (?)
# except KeyboardInterrupt:
# print("caught a keyboard interrupt!")
except:
Exit = raw_input("Want to exit?")
if (Exit == 'y'):
analog_output.StopTask()
analog_output.ClearTask()
return [np.median(scan), focus[0]]
#sys.exit(0)
else:
analog_output.StopTask()
return
angleErrPrev = 0
angleCmd = 0
positionErrPrev = 0
positionCmd = 0
controlEnabled = False
danceEnabled = False
danceAmpl = 500
dancePeriodS = 8
loggingEnabled = False
kbAvailable = True
try:
kb = kbhit.KBHit(
) # can only use in posix terminal; cannot use from spyder ipython console for example
except:
kbAvailable = False
printparams()
help()
startTime = time.time()
lastTime = startTime
lastAngleControlTime = lastTime
lastPositionControlTime = lastTime
angleErr = 0
positionErr = 0 # for printing even if not controlling
p.stream_output(True) # now start streaming state
while True:
# Adjust Parameters
def ContinuousScan(focus, offset, duration=10., focusChannel="Dev1/ao0", scanChannel="Dev1/ao1"):
"""Function to continuously scan galvo mirror across field of view, centered on offset voltage and with the focus set by the perpendicular galvo. This function is specific to a National Instruments DAQ card, used to send signals to the mirror galvonometers. This function is useful when the camera is in free-runnung mode for, e.g. sample location, focus adjustment, etc.
The main differences between this function and galvoScan are that 1. writing to the DAQ card occurs continuously in a loop and 2. writing starts immediately (there is no waiting for an external trigger).
***To Do:
- add error handling with Try/Except
Inputs:
focus - float, Voltage (in V) used by the off-axis galvo to bring the laser into focus.
offset - float, Voltage (in V) that steers the laser through the center of the scan range.
duration - float, Time (in ms) that the scan should take to completely sweep the field of view.
focusChannel - string, Hardware device and channel that controls the focus galvo, e.g. "Dev1/ao0"
scanChannel - string, Hardware device and channel that controls the scan galvo, e.g. "Dev1/ao1"
"""
duration = duration/1000.
analog_output = pydaq.Task()
analog_output.CreateAOVoltageChan(focusChannel, "", -5.0, 5.0, pydaq.DAQmx_Val_Volts, None)
analog_output.CreateAOVoltageChan(scanChannel, "", -5.0, 5.0, pydaq.DAQmx_Val_Volts, None)
"""For the time being, I am assuming that the field of view is (over)filled by sweeping through 600 milliVolts.
At 40x with the Hamamatsu sCMOS, this should be about 333 microns, so there is a rough correspondence of 1.8mV to
1um. Since the NIR (bessel) beam has a FWHM of about 3um, I will move in 1mV (0.55um) steps, which should appear
continuos. This means that the sampling rate should be set to samples/duration (where samples is 600)."""
samples = 10000*2
samplingRate = float(samples)/duration
analog_output.CfgSampClkTiming(None, samplingRate, pydaq.DAQmx_Val_Rising, pydaq.DAQmx_Val_ContSamps, samples)
scan = np.linspace(-0.250, 0.250, samples/2.) + offset
"""Trace backward for less acceleration on the galvo (pyramid instead of sawtooth):
"""
scan = np.concatenate((scan,scan[::-1]),0)
focus = focus*np.ones(samples)
"""Since the analog out write function has an ouput that is the actual number of samples per channel successfully
written to the buffer, create a variable to store those values: """
temp = (pydaq.c_byte*4)()
actualWritten = pydaq.cast(temp, pydaq.POINTER(pydaq.c_long))
if (focusChannel == "Dev1/ao0"):
writeData = np.concatenate((focus, scan),1)
else:
writeData = np.concatenate((scan, focus),1)
analog_output.WriteAnalogF64(samples, True, -1, pydaq.DAQmx_Val_GroupByChannel, writeData, actualWritten, None)
kb = kbhit.KBHit()
while(True):
if kb.kbhit():
try:
k_in = kb.getarrow()
analog_output.StopTask()
if (k_in == 1):
focus = focus + 0.001
print('offset = %5.3f, focus = %5.3f' % (scan[0], focus[0]))
elif (k_in == 3):
focus = focus - 0.001
print('offset = %5.3f, focus = %5.3f' % (scan[0], focus[0]))
elif (k_in == 0):
scan = scan + 0.001
print('offset = %5.3f, focus = %5.3f' % (scan[len(scan)/2.], focus[0]))
elif (k_in == 2):
scan = scan - 0.001
print('offset = %5.3f, focus = %5.3f' % (scan[len(scan)/2.], focus[0]))
else:
derp = "derr"
writeData = np.concatenate((focus, scan),1)
analog_output.WriteAnalogF64(samples, False, -1, pydaq.DAQmx_Val_GroupByChannel, writeData, actualWritten, None)
analog_output.StartTask()
except:
Exit = raw_input("Want to exit?")
if (Exit == 'y'):
analog_output.StopTask()
analog_output.ClearTask()
return [np.median(scan), focus[0]]
else:
analog_output.StopTask()
return
def NoScanFocus(focus, offset, focusChannel="Dev1/ao0", scanChannel="Dev1/ao1"):
"""Function to hold scan galvo mirror in middle of field of view (at offset voltage) and with the initial focus set by the perpendicular galvo. This function is specific to a National Instruments DAQ card, used to send signals to the mirror galvonometers. This function is used when the camera is in free-runnung mode for focus adjustment, taking keyboard input to adjust the focus voltage.
***To Do:
- add error handling with Try/Except
Inputs:
focus - float, Voltage (in V) used by the off-axis galvo to bring the laser into focus.
offset - float, Voltage (in V) that steers the laser through the center of the scan range.
focusChannel - string, Hardware device and channel that controls the focus galvo, e.g. "Dev1/ao0"
scanChannel - string, Hardware device and channel that controls the scan galvo, e.g. "Dev1/ao1"
"""
analog_output = pydaq.Task()
analog_output.CreateAOVoltageChan(focusChannel, "", -5.0, 5.0, pydaq.DAQmx_Val_Volts, None)
analog_output.CreateAOVoltageChan(scanChannel, "", -5.0, 5.0, pydaq.DAQmx_Val_Volts, None)
samples = 1000
samplingRate = 1000.
analog_output.CfgSampClkTiming(None, samplingRate, pydaq.DAQmx_Val_Rising, pydaq.DAQmx_Val_ContSamps, samples)
scan = offset*np.ones(samples)
focus = focus*np.ones(samples)
"""Since the analog out write function has an ouput that is the actual number of samples per channel successfully
written to the buffer, create a variable to store those values: """
temp = (pydaq.c_byte*4)()
actualWritten = pydaq.cast(temp, pydaq.POINTER(pydaq.c_long))
"""Attempt to assign the correct channels to x and y galvos"""
if (focusChannel == "Dev1/ao0"):
writeData = np.concatenate((focus, scan),1)
else:
writeData = np.concatenate((scan, focus),1)
analog_output.WriteAnalogF64(samples, False, -1, pydaq.DAQmx_Val_GroupByChannel, writeData, actualWritten, None)
analog_output.StartTask()
kb = kbhit.KBHit()
while(True):
if kb.kbhit():
try:
k_in = kb.getarrow()
analog_output.StopTask()
if (k_in == 1):
focus = focus + 0.001
print('offset = %5.3f, focus = %5.3f' % (scan[0], focus[0]))
elif (k_in == 3):
focus = focus - 0.001
print('offset = %5.3f, focus = %5.3f' % (scan[0], focus[0]))
elif (k_in == 0):
scan = scan + 0.001
print('offset = %5.3f, focus = %5.3f' % (scan[0], focus[0]))
elif (k_in == 2):
scan = scan - 0.001
print('offset = %5.3f, focus = %5.3f' % (scan[0], focus[0]))
else:
derp = "derr"
writeData = np.concatenate((focus, scan),1)
analog_output.WriteAnalogF64(samples, False, -1, pydaq.DAQmx_Val_GroupByChannel, writeData, actualWritten, None)
analog_output.StartTask()
Exit = raw_input("Want to exit?")
if (Exit == 'y'):
analog_output.StopTask()
analog_output.ClearTask()
return [scan[0], focus[0]]
else:
analog_output.StopTask()
return
elif command == keyboard.Commands.Command3:
print('Command3')
emulator.clear_display()
else:
print('Failed to connect to server, exiting ...')
# This is kinda normal - just exit
except KeyboardInterrupt as ex:
print('Forcing a quit')
pass
# We got something we really weren't expecting here
except Exception as ex:
print("\n>>> EXCEPTION : {} <<<\n".format(ex))
log.error(ex, exc_info=True)
pass
finally:
emulator.close()
# Flush the keyboard here
try:
kb = KBHit.KBHit()
kb.flush()
except:
pass
# Shut this puppy down
destroy_logging()
print('Done!')
# generate samples, note conversion to float32 array
#data = (np.sin(2 * np.pi * np.arange(SRATE * duration) * frec / SRATE)).astype(np.float32)
data = triangle()
plt.plot(data)
plt.xlabel('time in seconds')
plt.ylabel('value')
plt.show()
# for paFloat32 sample values must be in range [-1.0, 1.0]
stream = p.open(format=pyaudio.paFloat32, channels=1, rate=SRATE, output=True)
# En data tenemos el wav completo, ahora procesamos por bloques (chunks)
#bloque = np.arange(CHUNK,dtype=data.dtype)
numBloque = 0
kb = kb.KBHit()
c = ' '
while c != 'q':
# nuevo bloque
# data = (np.sin(2 * np.pi * np.arange(SRATE * duration) * frec / SRATE)).astype(np.float32)
data = square()
bloque = data[numBloque * CHUNK:numBloque * CHUNK + CHUNK]
bloque *= vol
# bloque *= frec/SRATE
# pasamos al stream haciendo conversion de tipo
stream.write(bloque.astype((data.dtype)).tobytes())
if kb.kbhit():
c = kb.getch()
elif data.dtype.name == 'float32': fmt = 4
elif data.dtype.name == 'uint8': fmt = 1
else: raise Exception('Not supported')
p = pyaudio.PyAudio()
stream = p.open(format=p.get_format_from_width(fmt),
channels=len(data.shape),
rate=SRATE,
frames_per_buffer=CHUNK,
output=True)
interval = np.array([20000, 40000]) # intervalo del sustain
sampler = Sampler(
data, interval, notes['DO']
) # nota de referencia del sample (sin modificar, se identifica como esa nota)
kb = kbhit.KBHit()
c = ' '
while c != 'q':
if kb.kbhit():
c = kb.getch()
sampler.handleInput(c)
sampler.noteOn()
sampler.noteOff()
kb.set_normal_term()
stream.stop_stream()
stream.close()
p.terminate()
def aotfModScan(focus, offset, duration, aomV, aomStripeWidth, phase=0, focusChannel="Dev1/ao0", scanChannel="Dev1/ao1", aomChannel="Dev1/ao2"):
"""Function to scan the visible laser and simultaneously modulate the AOTF in order to perform structured illumination,
e.g. for HiLo imaging. Currently, an 'aomStripeWidth' value of 7-10 looks good, but this will likely change as I
figure out more appropriate scaling for this galvo.
"""
duration = duration/1000.
analog_output = pydaq.Task()
analog_output.CreateAOVoltageChan(focusChannel, "", -5.0, 5.0, pydaq.DAQmx_Val_Volts, None)
analog_output.CreateAOVoltageChan(scanChannel, "", -5.0, 5.0, pydaq.DAQmx_Val_Volts, None)
analog_output.CreateAOVoltageChan(aomChannel, "", 0., 10.0, pydaq.DAQmx_Val_Volts, None)
analog_output.CreateAOVoltageChan("Dev1/ao3", "", 0., 10.0, pydaq.DAQmx_Val_Volts, None)
samples = 1000*2
samplingRate = float(samples)/duration
# samplingRate = 10000
analog_output.CfgSampClkTiming(None, samplingRate, pydaq.DAQmx_Val_Rising, pydaq.DAQmx_Val_ContSamps, samples)
scan = np.linspace(-1.800, 1.800, samples) + offset
# scan = np.concatenate((scan,scan[::-1]),0)
focus = focus*np.ones(samples)
temp = np.concatenate((np.zeros(aomStripeWidth),aomV*np.ones(aomStripeWidth)),0)
temp = np.tile(temp, samples/len(temp))
aom = temp[0:samples+1]
# aom = np.concatenate((aom, aom[::-1]),0)
blank = 10*np.ones(samples)
if (phase == 1):
aom = np.roll(aom, int(aomStripeWidth/3))
elif (phase == 2):
aom = np.roll(aom, int(aomStripeWidth/3*2))
"""Since the analog out write function has an ouput that is the actual number of samples per channel successfully
written to the buffer, create a variable to store those values: """
temp = (pydaq.c_byte*4)()
actualWritten = pydaq.cast(temp, pydaq.POINTER(pydaq.c_long))
if (focusChannel == "Dev1/ao0"):
writeData = np.concatenate((focus, scan, aom, blank),1)
else:
writeData = np.concatenate((scan, focus, aom, blank),1)
analog_output.WriteAnalogF64(samples, True, -1, pydaq.DAQmx_Val_GroupByChannel, writeData, actualWritten, None)
kb = kbhit.KBHit()
while(True):
if kb.kbhit():
try:
k_in = kb.getarrow()
analog_output.StopTask()
if (k_in == 1):
focus = focus + 0.001
print('offset = %5.3f, focus = %5.3f' % (scan[0], focus[0]))
elif (k_in == 3):
focus = focus - 0.001
print('offset = %5.3f, focus = %5.3f' % (scan[0], focus[0]))
elif (k_in == 0):
scan = scan + 0.001
print('offset = %5.3f, focus = %5.3f' % (scan[0], focus[0]))
elif (k_in == 2):
scan = scan - 0.001
print('offset = %5.3f, focus = %5.3f' % (scan[0], focus[0]))
else:
derp = "derr"
writeData = np.concatenate((focus, scan, aom, blank),1)
analog_output.WriteAnalogF64(samples, False, -1, pydaq.DAQmx_Val_GroupByChannel, writeData, actualWritten, None)
analog_output.StartTask()
#print(k_in, k_in==1)
#I currently can't figure out how to exit gracefully, this exception doesn't allow the function to be called again, as the task is still reserved (?)
# except KeyboardInterrupt:
# print("caught a keyboard interrupt!")
except:
Exit = raw_input("Want to exit?")
if (Exit == 'y'):
analog_output.StopTask()
analog_output.ClearTask()
return [np.median(scan), focus[0]]
#sys.exit(0)
else:
analog_output.StopTask()
return
#def spimSideSelect(diSPIMEnable=True):
"""Function to coordinate the laser source between the ASI diSPIM and home-built setup. Requires one digital input, one user input, and two digital outputs. If the program can exit with the DAQ outputs staying where they are at, then it can be called and allowed to return (This depends on DAQ functionality, which I am unsure about).