[vtkusers] Problem adding actor to a renderer

[Goodwin Lawlor]

Hi Roger,

What changed since your application used to work? Additional code or 
newer vtk version? Or something else...

Do you add the same actor to the two renderers? Does creating separate 
actor/mappers for each renderer do anything?

Do each of the renderers get added to separate vtkRenderWindow instances?

Goodwin

Roger Blum wrote:
> Hi Goodwin,
> 
> Unfortunately it's a proprietary application with > 15000 lines of Tcl 
> code. Extracting the problematic part isn't easy and I'm not sure if 
> writing a special test script would cause the same problem, as it used 
> to work the way it is set up.
> I will post a test script if I'm able to reproduce the problem.
> 
> Thanks,
> Roger
> 
> Goodwin Lawlor wrote:
>> Roger,
>>
>> Can you post a small tcl script illustrating this behaviour?
>>
>> Goodwin
>>
>> Roger Blum wrote:
>>> Hello
>>>
>>> My Tcl application has 2 renderers: 1 showing an overview window and 
>>> 1 showing the interactive window where user can zoom, pan, etc.
>>>
>>> The background in both windows is a bitmap displayed with a 
>>> vtkImageActor. This used to work perfectly till recently the overview 
>>> window stopped showing the image. I can not find the reason for this 
>>> sudden change.
>>>
>>> I' ve found that the actor doesn't get added to the renderer. Writing 
>>> output before and after the AddActor command shows that the renderer 
>>> has the same amount of actors before and after the call.
>>> If I try to add the actor 'manually' from the built-in shell I can 
>>> add it to the main window but it wouldn't add to the overview window.
>>>
>>> What would cause a renderer to not accept an (obviously correctly 
>>> configured) actor?
>>
>>
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> 
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