How to use 'time function' to control the balls appear separately?

[znchb]

# I want to show balls on the screen one by one, not all the balls appear immediately.
# could you please help me to use the time function to control it. Appreciate.

import viz
viz.go()

OriginalBall = viz.add('ball.wrl')

for x in [0, 0.2, 0.4, 0.6, 0.8]: ## nested loop
for y in [0, 0.3, 0.6, 0.9]:
ball = OriginalBall.copy() ##use the copy() to save cpu resource
ball.translate(2+x, 2+y, 2)
ball.setScale(0.02,0.02,0.02)

[Jeff]

this code adds the balls to an array and initially makes them invisible.
the timer goes off every half second and calls a function that makes one ball visible each time

import viz
viz.go()

OriginalBall = viz.add('ball.wrl')

viz.MainView.setPosition([-2,2.5,-2])
viz.MainView.setEuler([45,0,0])


balls = []
for x in [0, 0.2, 0.4, 0.6, 0.8]: ## nested loop
	for y in [0, 0.3, 0.6, 0.9]:
		ball = OriginalBall.copy() ##use the copy() to save cpu resource
		ball.translate(2+x, 2+y, 2)
		ball.setScale(.2,.2,.2)
		ball.visible(viz.OFF)
		balls.append(ball)


number = 0
def showBall():
	global number
	balls[number].visible(viz.ON)
	number +=1
	
vizact.ontimer2(.5,len(balls)-1,showBall)

Is this what you wanted to do?
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