[vtkusers] Error while close the VTK Window

[Sathish Kumar]

Hi Sebastien,

I tried Delete() method for all the VTK objects. But the application 
crashes while call vpanAxial.getRenderer().Delete();

Thanks,
Sathish

On Monday 23 May 2011 07:00 PM, Sebastien Jourdain wrote:
> Hi Sathish,
>
> I gave a try on my linux and I was able to reproduce the issue with
> the DicomMPR2D but not with the other components.
> Something weird seems to happen for that particular application that
> use several vtkPanel in the same view.
> I'll try to understand what is wrong there...
>
> Seb
>
> On Mon, May 23, 2011 at 7:48 AM, Sebastien Jourdain
> <sebastien.jourdain at kitware.com>  wrote:
>> Hi Sathish,
>>
>> if you tried the VTK that I was referring too, you could not have used
>> that code because the class vtkGlobalJavaHash does not exist anymore.
>> And you should have a Delete() method on the vtkPanel...
>>
>> Seb
>>
>> On Mon, May 23, 2011 at 2:24 AM, Sathish Kumar<kingvsk at aol.com>  wrote:
>>> Hi Sebastien,
>>>
>>> I accept your point. But it works without memory leak. Thats why I choosed
>>> DeleteAll() method. Anyway here after I won't use that.
>>>
>>> As per your suggestion I tried the following code in Windows.
>>> This too gives the same error window which is attached in the previous mail.
>>>
>>> private void formWindowClosed(java.awt.event.WindowEvent evt)
>>> {
>>>          // Garbage Collection...
>>>          vpanAxial.GetRenderer().RemoveAllViewProps();
>>>          vpanAxial.GetRenderer().RemoveAllLights();
>>>          vpanAxial.GetRenderWindow().RemoveRenderer(vpanAxial.GetRenderer());
>>>          vpanAxial = null;
>>>          vpanCoronal.GetRenderer().RemoveAllViewProps();
>>>          vpanCoronal.GetRenderer().RemoveAllLights();
>>>
>>> vpanCoronal.GetRenderWindow().RemoveRenderer(vpanCoronal.GetRenderer());
>>>          vpanCoronal = null;
>>>          vpanSagittal.GetRenderer().RemoveAllViewProps();
>>>          vpanSagittal.GetRenderer().RemoveAllLights();
>>>
>>> vpanSagittal.GetRenderWindow().RemoveRenderer(vpanSagittal.GetRenderer());
>>>          vpanSagittal = null;
>>>
>>>          resliceAxial = null;
>>>          resliceCoronal = null;
>>>          resliceSagittal = null;
>>>          actorAxial = null;
>>>          actorCoronal = null;
>>>          actorSagittal = null;
>>>          reader = null;
>>>
>>>          System.gc();
>>>          vtkGlobalJavaHash.GC();
>>>      }
>>>
>>> Thanks,
>>> Sathish
>>>
>>>
>>>
>>> On Saturday 21 May 2011 07:07 PM, Sebastien Jourdain wrote:
>>>
>>> Hi Sathish,
>>>
>>> You can give a try with that VTK. But for sure, you shouldn't call
>>> DeleteAll() because your Frame/Panel is still alive in the Java world.
>>>
>>> http://review.source.kitware.com/#q,status:open+project:VTK+branch:master+topic:vtk-java-improvement,n,z
>>>
>>> Seb
>>>
>>> PS: I didn't had the time yet to give a try of your code on my linux.
>>> PS2: You have to use the VTK garbage collector. Look at the code
>>> sample provided in the source...
>>>
>>> On Sat, May 21, 2011 at 1:47 AM, Sathish Kumar<kingvsk at aol.com>  wrote:
>>>
>>> Hi All,
>>>
>>> I am using VTK Java Wrapper. In Windows I get an error window while I close
>>> my vtkRenderWindow.
>>>
>>> My Code :
>>>
>>>     private void formWindowClosed(java.awt.event.WindowEvent evt) {
>>>         // Garbage Collection...
>>>         vtkGlobalJavaHash.DeleteAll();
>>>     }
>>>
>>> If I delete the VTK objects Manually then it results in memory leak. But the
>>> DeleteAll() method solves the memory leak but gives the following error
>>> Message is a separate VTK Output Window. (Please find the attachment).
>>>
>>> Error: In ..\..\VTKSources\Rendering\vtkWin32OpenGLRenderWindow.cxx
>>> vtkWin32OpenGLRenderWindow (047E5DA0): wglMakeCurrent failed in clean
>>>
>>> I can't scroll the error window to view further error message.
>>>
>>> Thanks in Advance,
>>>
>>> --
>>> Sathish,
>>>
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