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/*=========================================================================
Program: Visualization Toolkit
Module: vtkSimpleImageToImageFilter.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "vtkSimpleImageToImageFilter.h"
#include "vtkImageData.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkStreamingDemandDrivenPipeline.h"
//----------------------------------------------------------------------------
vtkSimpleImageToImageFilter::vtkSimpleImageToImageFilter()
{
}
//----------------------------------------------------------------------------
vtkSimpleImageToImageFilter::~vtkSimpleImageToImageFilter()
{
}
//----------------------------------------------------------------------------
int vtkSimpleImageToImageFilter::RequestUpdateExtent (
vtkInformation * vtkNotUsed(request),
vtkInformationVector **inputVector,
vtkInformationVector *vtkNotUsed( outputVector ))
{
vtkInformation *inInfo = inputVector[0]->GetInformationObject(0);
// always request the whole extent
inInfo->Set(vtkStreamingDemandDrivenPipeline::UPDATE_EXTENT(),
inInfo->Get(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT()),6);
return 1;
}
//----------------------------------------------------------------------------
int vtkSimpleImageToImageFilter::RequestData(
vtkInformation* vtkNotUsed( request ),
vtkInformationVector** inputVector,
vtkInformationVector* outputVector)
{
// get the data object
vtkInformation *outInfo = outputVector->GetInformationObject(0);
vtkImageData *output = vtkImageData::SafeDownCast(
outInfo->Get(vtkDataObject::DATA_OBJECT()));
vtkInformation *inInfo = inputVector[0]->GetInformationObject(0);
vtkImageData *input = vtkImageData::SafeDownCast(
inInfo->Get(vtkDataObject::DATA_OBJECT()));
int inExt[6];
input->GetExtent(inExt);
// if the input extent is empty then exit
if (inExt[1] < inExt[0] ||
inExt[3] < inExt[2] ||
inExt[5] < inExt[4])
{
return 1;
}
// Set the extent of the output and allocate memory.
output->SetExtent(
outInfo->Get(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT()));
output->AllocateScalars();
this->SimpleExecute(input, output);
return 1;
}
//----------------------------------------------------------------------------
void vtkSimpleImageToImageFilter::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
}
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