def exit(self):
# do a bit of cleanup
log.info("Stop video stream thread...")
log.info("Exit app...")
cv2.destroyAllWindows()
return
def run(self):
# loop over frames from the video stream
log.info('Start application loop...')
while True:
run = self.dispatch_event()
if not run:
break
self.update()
self.show()
self.exit()
def update_time(self):
# Variable manage time (unit: second)
self.t2 = round(time.time(), 5)
self.t2 = round(self.t2 - self.t_run, 5)
self.t = round(self.t2 - self.t0, 5)
self.dt = round(self.t2 - self.t1, 5)
self.clk_run = round(self.clk_run + self.dt, 5)
log.info('t :', self.t, 'dt :', self.dt, 'clk_run :', self.clk_run)
return
def dispatch_event(self):
# get keys
key = cv2.waitKey(1) & 0xFF
# if the `q` key was pressed, break from the loop
if key == ord('q'):
log.info('Key Q press, quit application loop...')
return False
if key == ord('n'):
log.info('Key N press, next update (' + str(self.update_cpt) +
') ...')
self.updated = True
return True
def update_with_time_acquisition(self):
self.clear()
log.info('update_with_time_acquisition')
for i in range(self.t0_idx, len(self.sequence.times)):
ti = self.sequence.times[i]
ii = self.sequence.indices[i]
t1_idx = i
t1 = self.t0 + self.t_acquisition
if ti >= t1:
self.t0_idx = t1_idx
self.t0 = self.sequence.times[self.t0_idx]
break
xi = ii % self.sequence.width
yi = ii // self.sequence.width
self.matrix[yi][xi] = 1
return
def update_finish(self):
log.info('Fin de la sequence')
if self.just_finished:
self.clear()
self.just_finished = False
return