AW: [vtkusers] Changing vtkStructuredPoints scalar type

[Oliver Burgert]

vtkImageCast ! ;-)

short example...

HTH Oliver

	//The Data which will be rendered
  vtkImageData *RenderImage = vtkImageData::New();

	//if volume data is not UNSIGNED_CHAR or UNSIGNED_SHORT
  //volume has to be casted to the desired range
  if ((p_Image->GetScalarType() != VTK_UNSIGNED_CHAR  ) &&
		  (p_Image->GetScalarType() != VTK_UNSIGNED_SHORT )) 
		{
			GfxPrint("Resampling volume");
      vtkImageCast* pImageCast = vtkImageCast::New();
	
pImageCast->SetOutputScalarTypeToUnsignedShort();
				pImageCast->ClampOverflowOn(); 
				pImageCast->SetInput(p_Image);

			RenderImage=(pImageCast->GetOutput());
			RenderImage->Update();
			GfxPrint("Resampling done");
    }  //resampling    
	else 
		{
			RenderImage = p_Image;
    }

> -----Ursprüngliche Nachricht-----
> Von: John Biddiscombe [mailto:jbiddiscombe at skippingmouse.co.uk]
> Gesendet: Donnerstag, 4. April 2002 23:16
> An: VTK Mailing list; Robb Brown
> Betreff: Re: [vtkusers] Changing vtkStructuredPoints scalar type
> 
> 
> vtkImageCast ?
> 
> ----- Original Message -----
> From: "Robb Brown" <brownr at ucalgary.ca>
> To: "VTK Mailing list" <vtkusers at public.kitware.com>
> Sent: Thursday, April 04, 2002 5:45 PM
> Subject: [vtkusers] Changing vtkStructuredPoints scalar type
> 
> 
> >
> > I have a vtkStructuredPoints file with ScalarType set to unsigned
> > char.  I want to convert this file so that ScalarType is short.  How
> > would I do this?  I tried reading it, using SetScalarTypeToShort()
> > then writing it and I do get a larger file but upon reading the file
> > again GetScalarTypeAsString still reports unsigned char.
> >
> > Thanks,
> >
> > Robb
> > --
> > ______________________________
> > Robb Brown
> > Seaman Family MR Research Centre
> > Calgary, Alberta, Canada
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