[vtkusers] Crash with nested vtkPropAssembly

[John Platt]

Hi,

 

I think there may be a problem in vtkPropAssembly::BuildPaths() with the
line

 

    path->AddNode(prop,NULL);

 

This will always add a null matrix even if the prop is a vtkProp3D. I
have changed this to

 

    path->AddNode( prop, prop->GetMatrix() );

 

and my particular problem is resolved.

 

John.

 

-----Original Message-----
From: vtkusers-bounces+jcplatt=dsl.pipex.com at vtk.org
[mailto:vtkusers-bounces+jcplatt=dsl.pipex.com at vtk.org] On Behalf Of
John Platt
Sent: 14 January 2008 16:43
To: vtk Users
Subject: [vtkusers] Crash with nested vtkPropAssembly

 

Hi,

 

If you try to render the prop assembly tree vtkActor > vtkPropAssembly >
vtkPropAssembly (from leaf to root), vtkProp3D::PokeMatrix() crashes
because this->CachedProp3D is NULL. The tree vtkActor > vtkPropAssembly
renders OK.

 

The same problem was reported some years ago
http://public.kitware.com/pipermail/vtkusers/2002-April/060530.html

 

Does anyone have a suggestion for a preferred fixed? I am using latest
CVS version (as of today).

 

TIA

 

John.

 

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