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  #1  
Old 03-17-2009, 05:57 PM
durf durf is offline
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Join Date: Feb 2009
Posts: 61
stop and starting a .wrl file

Hello,

Im trying to make a animation happen once if. Im planning on using it in a def.

Do i initate the .wrl file before the def?

How can I make the .wrl disapear after the animation runs once?
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  #2  
Old 03-18-2009, 12:07 AM
Jeff Jeff is offline
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Join Date: Aug 2008
Posts: 2,466
Use the viz.ACTION_END_EVENT to notify you that the action has completed on your object and then within your callback function use <node3D>.remove() to permanently remove the object from the scene.
Code:
import viz
viz.go()

spin = vizact.spin(0,1,0,90,5)

ball = viz.add('ball.wrl',pos=(0,1.8,2))
ball.addAction(spin)

def onActionEnd(e):
	if e.object is ball and e.action is spin:
		ball.remove()
		print 'Ball is removed'

viz.callback(viz.ACTION_END_EVENT,onActionEnd)
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  #3  
Old 03-18-2009, 05:53 AM
durf durf is offline
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Join Date: Feb 2009
Posts: 61
Well I dont want a spinning action to happen. The animation(the .wrl file) moves. This is an example. We have the sun. The sun rise from one area and sets in another area. On a certain cue I want to trigger the animation(the sun). Let it arc through the air for about 5 seconds and when its at its set point I want it to disappear. And then if that certain cue happens again I want to repeat that process. Ive been going through the index trying to find some code that could fit this but Im not having the best of luck.

Thanks
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  #4  
Old 03-19-2009, 08:51 AM
durf durf is offline
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Join Date: Feb 2009
Posts: 61
Not sure if Im understanding how these def really works. Im trying to calculate speed. When that speed is between 3 and 5 I want it to kick in the animation. This animation is a looping animation. Kind of like the above post from yesterday about the sun. Anyways, when I run this it kicks off the animation when it shouldn't because the speed should be 0. Then it only runs once. I was thinking that since CalculateSpeed always stays runnning that it would keep checking the speed between 3 and 5. If that was true it would kick it into the showFlower() and run once. SO I need help, any suggestions would be much appreciated.

One more thing. I want it to create a new image everytime its speed is between 3 and 5 and then removes that image after 3.5 seconds.

Thanks

Code:
def CalculateSpeed(obj):
	
	#Get current and last position
	current_pos = obj.getPosition()
	last_pos = getattr(obj, 'last_pos', None)

	if last_pos is None:
		#This is first call, so save position and set speed to 0
		obj.last_pos = current_pos
		obj.speed = 0.0
		
	else:
		#Compute speed using last position
		obj.speed = vizmat.Distance(current_pos,last_pos) / viz.elapsed()
		obj.last_pos = current_pos
		if obj.speed > 3 and obj.speed < 5:
			showFlower() 

vizact.ontimer(.1,CalculateSpeed,ppt1)

def showFlower():
	flower = viz.add('flower_02.wrl')  #creates new flower
	flower.scale(.2,.2,.2)
	yield viztask.waitTime( 3.5 )  #waits 3.5 seconds
	flower.remove()  #then removes flower
viztask.schedule( showFlower() )
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  #5  
Old 03-19-2009, 10:20 AM
durf durf is offline
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Join Date: Feb 2009
Posts: 61
Nevermind I got it... I just moved the def up into the if statement and now it works YEAH!
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