[Visualpython-users] frame questions

[Bruce S. <bas...@un...>]

I think it is indeed the case that there isn't any way to add an      
existing object to a frame. I'm also not quite sure what it would     
mean, or what the syntax would look like, since the point of a frame  
is that coordinates are relative to the frame. How should the existing
coordinates be interpreted when adding to a frame?                    
                                                                      
As for making all objects in a frame invisible by scene.frame.visible 
= 0, the fact that this doesn't work is in fact a bug and is on the   
bug list in the VPython project at sourceforge.net. You can achieve   
the effect however by looping through the objects:                    
                                                                      
f = frame()                                                           
ball = sphere(frame=f)                                                
carton = box()                                                        
for obj in scene.objects:                                             
    if obj.frame is f:                                                
        obj.visible = 0