Flock of Birds question (again)

[farshizzo]

Also, your framerate should usually be 60. What is your framerate when you run the following basic script?

import viz
viz.go()

[Elittdogg]

Hopefully you can run it now:

import viz					
import math					
import whrandom 			
import string				

viz.go(viz.PROMPT)			

# Get subject number from prompt box
promptMesg = viz.get(viz.INITMESG)		
if promptMesg == "":					
	Subnum 	= 999						
	Trial	= 100						
	
else:									
	text = string.split(promptMesg)		
	Subnum = int(text[0])  				
	Trial = int(text[1]) 				
	
print "Subnum =", Subnum				
print "Trial =", Trial					

PORT_FOB = 1
NUM_FOB = 6								
NUM_DOTS = 900							
RADIUS = .5								
DATA = 2								
AMPLITUDE = .05							
X1 = 0									
X2 = 64									

MAX_SAMPLES = 60.0 * 30.0
SAMPLE_RATE = 1.0 / 30.0
samples = 0

viz.startlayer(viz.POINTS)				
viz.vertexcolor(1,1,1)					
viz.pointsize(4)						

for i in range(0, NUM_DOTS):			
  x = whrandom.random() - 0.5			 
  y = whrandom.random() - 0.5			
  z = whrandom.random() - 0.5			
  length = math.sqrt(x*x + y*y + z*z)	
  x = x / length * RADIUS				
  y = y / length * RADIUS				
  z = z / length * RADIUS				
  viz.vertex(x, y, z)					

sphere = viz.endlayer()					
sphere.translate(0,1.8,.2)				

flock1 = viz.add('flockofbirds.dls')	
#flock2 = viz.add('flockofbirds.dls')
#flock3 = viz.add('flockofbirds.dls')	
#flock4 = viz.add('flockofbirds.dls')	

flock1.command(6)						
#flock2.command(6)						
#flock3.command(6)						
#flock4.command(6)						

tracking_data = open('openloopsine_complex/headdata_'+ str(Subnum) + " " + str(Trial) + '.txt', 'a')			
#tracking_data2 = open('openloopsine_complex/hipdata_'+ str(Subnum) + " " + str(Trial) + '.txt', 'a')			
#tracking_data3 = open('openloopsine_complex/kneedata_'+ str(Subnum) + " " + str(Trial) + '.txt', 'a')			
#tracking_data4 = open('openloopsine_complex/ankledata_'+ str(Subnum) + " " + str(Trial) + '.txt', 'a')			

def mytimer(num):								
	if num == 0:								
		global AMPLITUDE, TOTALCYCLES, X1, X2, samples	
		
		data1 = flock1.get()							
				
		HEADLAT = data1[0]								
		HEADVERT = data1[1]								
		HEADAP = data1[2]								
		HEADYAW = data1[3]								
		HEADPITCH = data1[4]							
		HEADROLL = data1[5]								
	
		head_data = str(Subnum) + '\t' + str(Trial) + '\t' + str(HEADAP) + '\t' +str(HEADLAT) + '\t' +str(HEADVERT) + '\t' +str(HEADYAW) + '\t' +str(HEADPITCH) + '\t' +str(HEADROLL) +'\n'			
		tracking_data.write(head_data)																																								
	
	if num == 4:												
		xmove = AMPLITUDE*math.sin(2*(math.pi/180)*X1) + AMPLITUDE*math.sin(2.5*(math.pi/180)*X1) + AMPLITUDE*math.sin(3.5*(math.pi/180)*X1) + AMPLITUDE*math.sin(1.75*(math.pi/180)*X1) + AMPLITUDE*math.sin(2*(math.pi/180)*X1) + AMPLITUDE*math.sin(2.5*(math.pi/180)*X1) + AMPLITUDE*math.sin(3*(math.pi/180)*X1) + AMPLITUDE*math.sin(2.5*(math.pi/180)*X1)+ AMPLITUDE*math.sin(2*(math.pi/180)*X1) + AMPLITUDE*math.sin(1.75*(math.pi/180)*X1)		
		X1 = X1 + 1												
#		print xmove
		sphere.translate(0,1.8,.2+.3*xmove, viz.ABSOLUTE)		
		
	if num == 3:							
		viz.quit()							

	if num == 1:
		
		#TODO: Process sample
		
		#Increment samples
		samples += 1
		if samples < MAX_SAMPLES:
			viz.starttimer(1,SAMPLE_RATE)
		else:
			print 'Finished collecting samples'
			
viz.callback(viz.TIMER_EVENT,mytimer)

def onkeydown(key):
	if key == ' ':
		viz.starttimer(0,(1.0/30.0), viz.FOREVER)
		#Clear samples and start timer
		samples = 0
		MAX_SAMPLES = 60 * 30
		viz.starttimer(1,SAMPLE_RATE)
		viz.starttimer(4,(1.0/30.0),viz.FOREVER)

viz.callback(viz.KEYDOWN_EVENT,onkeydown)

[Elittdogg]

When I run that simple script my fram rate is essentially 60 (it constantly changes between 59 and 60).

[Elittdogg]

So now the question is why am I not getting consistent data collection results?

[farshizzo]

I'm not sure, it might be a framerate issue. Did the sample script I posted above give you better results?

[Elittdogg]

The sample script didn't really do anything. Maybe I'm not implementing it correctly, but I can't seem to get consistent results. When I'm running a script other than just that simple script the frame rate fluctuates around 49. Anyway, is there a way that I'm supposed to put your sample script within the code I have to make it work? Because what I did didn't do anything.

[farshizzo]

Did you place your code for collecting samples in the DoSample function? That function will be called at the specified rate.