Re: [Visualpython-users] Error with forward and up

[alessandro <bom...@gm...>]

OK. So the only way is to use Visual 5? I need some help installing 
Visual 5 on Ubuntu Hardy. I've tried to install the package made by Guy 
K. Kloss here

https://gutefee.massey.ac.nz/moin/Python/3D

but when I use in my prog. it doesn't work. I'm using pygtk and glade building my app. 

I have this func main:


def main():
    global scena1     # my scene
    global griglia
    global nomefile
  
    app.signal_autoconnect(dic)

    gui_main.show()
    gui_main.move(0,0)
    scena1 = disegno.nuovo()         # call to my  drawing -module
   
    disegno.xyz(100)                        # here I draw 3 arrow (my 
xyz axis)
    griglia = 2000                             
    step=100
    disegno.base(-griglia,-griglia,griglia,griglia,step,True)   # here I 
draw a grid (my ground plane)
   
  
    gtk.main()



Running the app must appear 3 wins: my main win, a second win (the 
option) and the Visual win (with the grid and the 3 arrow). But 
everything seems to be "freezed". with Visual 3 it work fine. I think 
there is something wrong with the gtk.main

Alessandro Barracco




Bruce Sherwood ha scritto:
> If you're willing to use the newer Visual 5, this problem has been 
> fixed. There is no way in Visual 3 around this other than never to 
> point the camera exactly in the direction of up or -up.
>
> (The fix in Visual 5 is quite technical: It consists of adjusting 
> scene.forward whenever it is exactly in the direction of scene.up or 
> -scene.up to point in a slightly different direction as far as the 
> view is concerned, and the human viewer doesn't notice.)
>
> Bruce Sherwood