[vtkusers] vtkImageReslice memory leak problem

[David Gobbi]

Which version of VTK are you using?  And which OS?
I you are on Linux or OS X, you should be able to use
valgrind to identify the line of code where the leaked
memory was allocated.

 - David


On Wed, Mar 21, 2012 at 10:02 PM, ysa0829 <ysa0829 at gmail.com> wrote:
> hi all,
>
> I use vtkImageReslice class and find some memory leak problem .
>
> I have memory leaks only that I call  reSlice->Update(), otherwise
> everything is fine.
>
> Here is my example code:
>
>
>
> void ImageResliceTest(vtkImageData* imageData)
> {
>       vtkImageReslice *reSlice = vtkImageReslice::New();
>      vtkMatrix4x4 *reSliceAxes = vtkMatrix4x4::New();
>
>       reSlice ->SetInput(imageData );
>       reSlice->SetResliceAxes(reSliceAxes);
>       reSlice->SetInterpolationModeToCubic();
>       reSlice->SetOutputSpacing(0.5, 0.5,0.5);
>       reSlice->SetOutputOrigin(0.5, 0.5, 0);
>       reSlice->SetOutputExtent(0, 50-1, 0, 50-1, 0, 0);
>       reSlice->Update();
>
>       reSliceAxes->Delete();
>       reSlice->Delete();
> }
>
> int main(int argc, char *argv[])
> {
>  vtkImageData *imageData = vtkImageData::New();
>
>    for(int i = 0 ; i < 100 ; i++)
>    {
>       ImageResliceTest(imageData );
>    }
>
>  return 1;
> }
>
> If I call the  reSlice->Update() , it still increases my memory , even after
> I use reSliceAxes->Delete();
>       reSlice->Delete(), memory increment is about 50~100K  eachtime I call
> ImageResliceTest.
>
> Is this a bug existing in vtkImageReslice class, or any suggestion to solve
> the memory leak problem ?
>
> Thanks in advance.