Re: [wxVTK] memory leak when using wxWidgets and VTK

[Mathieu M. <mat...@gm...>]

[you do not need to duplicate email, you will not get duplicate answer]

2009/4/14 Bangyou Zheng <zhe...@gm...>:
> I have the similar problem about memory leak described by Premraj, Senthil
> Kumar. The URL is :
>
> http://sourceforge.net/mailarchive/forum.php?thread_name=CE95C4CC27808146AB22964FE8C94D66016D91462CAB%40IOWAEVS05.iowa.uiowa.edu&forum_name=wxvtk-users
>
> 1) Problem description:
> I need to redraw the vtkRenderer when users click the someplace of window.
> Firstly, the all props were deleted:
> m_Renderer->RemoveAllViewProps();
>
> Then, these codes were used to redraw the vtkRenderer
>
> vtkPoints           * pts             = vtkPoints::New();
> vtkUnstructuredGrid * aTriangleGrid   = vtkUnstructuredGrid::New();
> vtkDataSetMapper    * aTriangleMapper = vtkDataSetMapper::New();
> vtkActor            * Actor        = vtkActor::New();
>
> // some codes to create the Props
>
> m_Renderer->AddViewProp( Actor );
>
> pts->Delete();
> aTriangleGrid->Delete();
> aTriangleMapper->Delete();
> Actor->Delete();
>
> Finally, The memory usage was growing with redrawing the vtkRenderer
>
> 2) My environment
> Windows XP SP2
> mingw32-gcc-3.4.5
> wxWidgets 2.8.9 linked as dll
> VTK 5.0 linked as dll
> wxVTKRenderWindowInteractor cvs version (up to now)
>
>
> I know this problem can be avoided by using linker's /delayload flag of MFC,
> but how to fix this problem for mingw?
>
> Thanks a lot!

I would think setting some renderer instance to NULL might help.
(->SetRenderer(NULL)).

HTH
-- 
Mathieu