[vtkusers] Rapid access to scalar data in vtkImageData

[Jothy]

I have tried that, it works pretty much faster!

Thanks

Jothy

On Tue, Oct 11, 2011 at 9:17 PM, David Doria <daviddoria at gmail.com> wrote:

> On Mon, Oct 10, 2011 at 11:41 AM, Martijn Steenwijk
> <martijnsteenwijk at gmail.com> wrote:
> > You might be looking for an iterator, something like this:
> > reader->Update();
> > ImagePointer img = reader->GetOutput();
> > ImageIteratorType img_it(img, img->GetLargestPossibleRegion() );
> > for(img_it.GoToBegin(); !img_it.IsAtEnd(); ++img_it){
> >     double value = img_it.Get();
> > }
> > Best,
> > Martijn
>
> Martijn, this is the VTK list :)
>
> Jothy, I think you're looking for imageData->GetScalarPointer(). Then
> you can access the data with normal pointer arithmetic.
>
> David
>



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