[vtkusers] use of vtkMetaImageReader

[Kevin H. Hobbs]

On Wed, 2006-09-27 at 05:22 -0700, samo wrote:
> Well, what I would like to know is how I can use vtkMetaImageReader. I have
> a file with .mdh (my header) and a .raw file (the body). What I tried now
> is:
> 
>                 m_MetaVolumeReader->GetOutput()->SetOrigin(0.0, 0.0, 0.0);
> 		m_MetaVolumeReader->SetFilePrefix(prefix);
> 		m_MetaVolumeReader->SetFilePattern("%s%03d.dcm.raw");
> 		m_MetaVolumeReader->SetDataExtent(0,511,0,511,0,102);
> 		m_MetaVolumeReader->SetDataSpacing(1.0,1.0,2.0);
> 		m_MetaVolumeReader->SetDataByteOrderToLittleEndian();
> 		m_volumeData = m_MetaVolumeReader->GetOutput();
> 		m_MetaVolumeReader->Update();

Wow, you don't need any of that. The whole point of the header is that
ALL meta information is in the header. You should only need :
	
	vtkMetaImageReader * reader = vtkMetaImageReader::New();
	reader->SetFileName( "whaterver.mhd" );

You don't even need to update the reader or make a pointer to it's
output just :
	next_filter->SetInputConnection( reader->GetOutputPort() );
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