[vtkusers] NULL check and reinitialize vtkSmartPointer<vtkImageData>

[Jothybasu Selvaraj]

May be you should use vtkImageChangeInformation(changer) and then

this->imageData=changer->GetOutput().


Jothy

On Mon, Oct 31, 2011 at 2:32 PM, Divya Rathore <divyarathore at gmail.com>wrote:

> Hi All,
>
> I have a vtkSmartPointer of vtkImageData:
>
> // declaration in header //
> vtkSmartPointer<vtkImageData> imageData;
>
> // implementation in .cpp //
> // get values from elsewhere and feed into this //
> imageData->SetDimensions(width, height, depth);
> imageData->SetNumberOfScalarComponents(1);
> imageData->SetScalarTypeToUnsignedShort();
> imageData->SetSpacing(spacingX, spacingY, spacingZ);
> imageData->SetOrigin(originX, originY, originZ);
>
>
> During the overall lifecycle of the application, I need to NULL check and
> feed values into imageData multiple times. It being a smart pointer, I
> can't call:
>
> imageData->Delete(); // WRONG! Its a smart pointer.
>
> what's the way to reinitialize the dimensions, spacing, origin etc
> (emptying this pointer back to its initial state)?
>
>
> best regards,
> Divya
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>
>


-- 
Jothybasu K Selvaraj
PhD Student
University of Liverpool
Liverpool,UK
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20111031/0a15d811/attachment.htm>