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Old 02-08-2015, 08:05 AM
mape2k mape2k is offline
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Join Date: Mar 2013
Posts: 60
setPosition() and collision

Hello,

I have a question about the setPosition() function, specifically when using it to move the viewpoint:

when I enable collision for the viewpoint (by viz.MainView.collision(viz.ON)), the setPosition() command will not move the viewpoint when there is an object in the path to the desired position. This is very counter intuitive and has caused me some frustration with a complex scene with complex movement command (I thought the error was in my coding!).

Is there a better way to move the viewpoint around? Right now I have to disable collision and re-enable it whenever I move the viewpoint.

Here is a small example:

Code:
import viz
import viztask
import vizshape

arena = viz.addChild('pit.osgb')

view = viz.MainView
view.collision(viz.ON)

eyelvl = 2

def main():

	view.setEuler(0,0,0)
	view.setPosition([0,eyelvl,0])
	
	yield viztask.waitKeyDown('b')
	
	view.setPosition([0,eyelvl,8])
	
	yield viztask.waitKeyDown('b')
	
	view.setPosition([0,eyelvl,0])
	
	cube1 = vizshape.addBox(size = [1,1,1],splitFaces = True)
	cube1.setPosition([0,eyelvl,6])
	cube1.color(viz.RED)
	
	cube2 = vizshape.addBox(size = [1,1,1],splitFaces = True)
	cube2.setPosition([-2,eyelvl,6])
	cube2.color(viz.GREEN)
	
	yield viztask.waitKeyDown('b')
	
	view.setPosition([0,eyelvl,8])
	
	yield viztask.waitKeyDown('b')
	
	cube2.setPosition([2,eyelvl,6])
	
viztask.schedule(main())

viz.go()
Best regards from Germany,
Johannes
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