linux/x11 problem

[David Gobbi]

Hi Les,

I've seen this since VTK 2.2 or VTK 2.3, but you're the first
person to report it to the list.  As far as I know, it is present 
all unix systems (though not Windows) and can be demonstrated in 
a large number of the examples:  Cone.py, flamingo.py, earth.py...
It doesn't affect the tcl examples.

There is an easy way to work around it.

Add:

 renWin.Render()

before:

 iren.Initialize()

in any example that demonstrates the problem.  

 - David

P.S. even though the workaround is simple, I still consider
     it to be a bug -- I've just been too lazy to investigate it.

--David Gobbi, MSc                    dgobbi at irus.rri.on.ca
  Advanced Imaging Research Group
  Robarts Research Institute, University of Western Ontario

On Sun, 5 Sep 1999, Les Schaffer wrote:

> in upgrading from VTK 2.1 to 2.4 and then trying the nightly build
> from Sept 2, i find the following problem: 
> 
> when i run Cone.py inside the python interpreter, there is no rendering
> done in the pop-up window until i either shade and unshade the window
> or switch desktops and come back again. if i try to click the mouse
> inside the bare window, the app segfaults.
> 
> the hang takes place in the system call select().
> 
> the python interpreter with VTK 2.1 worked flawlessly with this latest 
> X (3.3.3.1), so something has changed since....
> 
> is there anyone on this list that either has this problem or would
> like to help track down and solve this bug?
> 
> thanks
> 
> les schaffer
> 
> 
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