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  #1  
Old 06-15-2009, 06:00 AM
Saz Saz is offline
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Join Date: Nov 2008
Posts: 36
Timed changing message on screen

Hi,

I'm trying to get a 'stop' message appear on the screen 10 seconds into the program, which waits for a second and then changes to 'go'. I've had various attempts and whilst I can get the intial message up (whether it starts off as go or appears at 10s in as stop), it won't change over to the other message.

This is one example of code used:

Code:
#Stop and go message
text_go=vizinfo.add('GO')
text_go.translate(.5, .9)
text_go.fontSize (35)

def stopSign():

	text_go.message('STOP')
	viz.waittime (1)
	text_go.message ('GO')
vizact.ontimer (10,stopSign)
and this is another:

Code:
def stopGo():
    Wait 10 secs
    viz.waittime(10)
    text.message( 'STOP' )
    #Wait 1 sec
    viz.waittime(1)
    text.message( 'GO' )
viz.director( stopGo )
which also fails to work, any ideas on what I'm doing wrong?
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  #2  
Old 06-15-2009, 01:28 PM
Jeff Jeff is offline
WorldViz Team Member
 
Join Date: Aug 2008
Posts: 2,455
you could use the following
Code:
#Stop and go message
text_go=vizinfo.add('GO')
text_go.translate(.5, .9)

def stopSign():

	text_go.message('STOP')
	vizact.ontimer2(1,0, text_go.message,'GO')

vizact.ontimer(10,stopSign)
your first example uses viz.waittime but its not in a director function
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  #3  
Old 06-16-2009, 04:56 AM
Saz Saz is offline
Member
 
Join Date: Nov 2008
Posts: 36
Cheers Jeff - you're a star! I have got another problem though - all of a sudden the output data will not write to the specified file - it was fine and then suddenly stopped working. The code I have is as follows:
Code:
directory = 'Y:\backup\Vizard30\resources\road'
subjectd = 'speed_.txt' + str(subject)
filename = directory+subjectd
file = open(filename, 'w')

def mytimer (num):
	
	out = (str(round(speedm,1)) + '\n')
	file.write(out)
	file.flush()
	print out
viz.callback( viz.TIMER_EVENT, mytimer )
viz.starttimer( 0, 0.25, viz.FOREVER )
but now this message appears:
Traceback (most recent call last):
File "<string>", line 11, in ?
File "roadldstop.py", line 167, in ?
file = open(filename, 'w')
IOError: [Errno 2] No such file or directory: 'Y:\x08ackup\\Vizard30\resources\roadspeed_.txt222 2'

I know the path exists so is this message because it's trying to create a temporary file when outputting the data?
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  #4  
Old 06-17-2009, 03:14 AM
Saz Saz is offline
Member
 
Join Date: Nov 2008
Posts: 36
No worries Jeff - sorted it out and now working
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