[vtkusers] NULL check and reinitialize vtkSmartPointer<vtkImageData>

[Divya Rathore]

Thanks, Jothy.
I will check if this does what I intend to get done.

best regards,
Divya



On Mon, Oct 31, 2011 at 2:36 PM, Jothybasu Selvaraj <jothybasu at gmail.com>wrote:

> 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
>>
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>
>
> --
> Jothybasu K Selvaraj
> PhD Student
> University of Liverpool
> Liverpool,UK
>
>
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