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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkComposeDisplacementFieldsImageFilter_h
#define itkComposeDisplacementFieldsImageFilter_h
#include "itkImageToImageFilter.h"
#include "itkVectorInterpolateImageFunction.h"
namespace itk
{
/**
* \class ComposeDisplacementFieldsImageFilter
*
* \brief Compose two displacement fields.
*
* \author Nick Tustison
* \author Brian Avants
*
* \ingroup ITKDisplacementField
*
*/
template <typename TInputImage, typename TOutputImage = TInputImage>
class ITK_TEMPLATE_EXPORT ComposeDisplacementFieldsImageFilter
: public ImageToImageFilter<TInputImage, TOutputImage>
{
public:
typedef ComposeDisplacementFieldsImageFilter Self;
typedef ImageToImageFilter<TInputImage, TOutputImage> Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Method for creation through the object factory. */
itkNewMacro( Self );
/** Extract dimension from input image. */
itkStaticConstMacro( ImageDimension, unsigned int,
TInputImage::ImageDimension );
typedef TInputImage InputFieldType;
typedef TOutputImage OutputFieldType;
/** Image typedef support. */
typedef typename OutputFieldType::PixelType PixelType;
typedef typename OutputFieldType::PixelType VectorType;
typedef typename OutputFieldType::RegionType RegionType;
typedef typename OutputFieldType::IndexType IndexType;
typedef typename OutputFieldType::PointType PointType;
typedef typename OutputFieldType::SpacingType SpacingType;
typedef typename OutputFieldType::PointType OriginType;
typedef typename OutputFieldType::SizeType SizeType;
typedef typename OutputFieldType::DirectionType DirectionType;
/** Other typedef */
typedef typename VectorType::ComponentType RealType;
typedef VectorInterpolateImageFunction
<InputFieldType, RealType> InterpolatorType;
/** Get the interpolator. */
itkGetModifiableObjectMacro( Interpolator, InterpolatorType );
/** Set the deformation field */
void SetDisplacementField( const InputFieldType *field )
{
itkDebugMacro( "setting displacement field to " << field );
if ( field != this->GetInput( 0 ) )
{
this->SetInput( 0, field );
this->Modified();
if( !this->m_Interpolator.IsNull() )
{
this->m_Interpolator->SetInputImage( field );
}
}
}
/**
* Get the deformation field.
*/
const InputFieldType* GetDisplacementField() const
{
return this->GetInput( 0 );
}
/** Set the warping field */
void SetWarpingField( const InputFieldType *field )
{
itkDebugMacro( "setting warping field to " << field );
if ( field != this->GetInput( 1 ) )
{
this->SetInput( 1, field );
}
}
/**
* Get the warping field.
*/
const InputFieldType* GetWarpingField() const
{
return this->GetInput( 1 );
}
/* Set the interpolator. */
virtual void SetInterpolator( InterpolatorType* interpolator );
protected:
/** Constructor */
ComposeDisplacementFieldsImageFilter();
/** Deconstructor */
virtual ~ComposeDisplacementFieldsImageFilter() ITK_OVERRIDE;
/** Standard print self function **/
void PrintSelf( std::ostream& os, Indent indent ) const ITK_OVERRIDE;
/** preprocessing function */
void BeforeThreadedGenerateData() ITK_OVERRIDE;
/** Multithreaded function which generates the output field. */
void ThreadedGenerateData( const RegionType &, ThreadIdType ) ITK_OVERRIDE;
private:
ITK_DISALLOW_COPY_AND_ASSIGN(ComposeDisplacementFieldsImageFilter);
/** The interpolator. */
typename InterpolatorType::Pointer m_Interpolator;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkComposeDisplacementFieldsImageFilter.hxx"
#endif
#endif
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