I have a loop as following ;
start = time.time()
end = time.time() - start
while(end<N):
data1 = self.chan1.getWaveform()
end = time.time() - start
timer.tick(10) #FPS
screen.fill((255,255,255) if white else(0,0,0))
white = not white
pygame.display.update()
for i in range(self.size):
end = time.time() - start
f.write("%3.8f\t%f\n"%(end,data1[i]))
Roughly speaking, this loop displays something at 10 frames per second
and writes data1 to a file with timestamps.
At first loop data1 is grabbed but to grab the second value (second
loop) it needs to wait for timer.tick to complete. When I change FPS
value [timer.tick()], capturing period (time interval between loops)
of data1 also changes. What I need is to run ;
timer.tick(10) #FPS
screen.fill((255,255,255) if white else(0,0,0))
white = not white
pygame.display.update()
for N seconds but this shouldn't effect the interval between loops
thus I will be able to continuously grab data while displaying
something at X fps.
What would be an effective workaround for this situation ?
--
http://mail.python.org/mailman/listinfo/python-list
