itkFEMScatteredDataPointSetToImageFilter.h

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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
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 *  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.
 *
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#ifndef __itkFEMScatteredDataPointSetToImageFilter_h
#define __itkFEMScatteredDataPointSetToImageFilter_h

#include "itkPointSetToImageFilter.h"
#include "itkVectorContainer.h"
#include "vnl/vnl_matrix.h"

#include "itkMesh.h"
#include "itkFEMObject.h"
#include "itkFEMElement3DC0LinearTetrahedronStrain.h"
#include "itkFEMElement3DC0LinearHexahedronStrain.h"
#include "itkFEMElement2DC0LinearTriangularStrain.h"
#include "itkFEMElement2DC0LinearQuadrilateralStrain.h"
#include "itkFEMElement2DC0LinearQuadrilateralMembrane.h"
#include "itkFEMRobustSolver.h"
#include "itkFEMLoadNoisyLandmark.h"
#include "itkImageToRectilinearFEMObjectFilter.h"
#include "itkTriangleCell.h"
#include "itkTetrahedronCell.h"
#include "itkQuadrilateralCell.h"
#include "itkHexahedronCell.h"

namespace itk
{
namespace fem
{
template<class TInputPointSet, class TInputMesh, class TOutputImage, class TInputConfidencePointSet, class TInputTensorPointSet>
class FEMScatteredDataPointSetToImageFilter:
  public PointSetToImageFilter< TInputPointSet, TOutputImage >
{
public:
  typedef FEMScatteredDataPointSetToImageFilter                 Self;
  typedef PointSetToImageFilter<TInputPointSet, TOutputImage>   Superclass;
  typedef SmartPointer<Self>                                    Pointer;
  typedef SmartPointer<const Self>                              ConstPointer;

  itkNewMacro( Self );

  itkStaticConstMacro( ImageDimension, unsigned int, TOutputImage::ImageDimension );

  typedef TInputPointSet                                              PointSetType;
  typedef typename PointSetType::PointType                            PointType;
  typedef typename PointSetType::PointsContainer                      PointsContainer;
  typedef typename PointsContainer::ConstIterator                     PointsIterator;
  typedef typename PointSetType::PixelType                            PointDataType;
  typedef typename PointSetType::PointDataContainer                   PointDataContainerType;
  typedef typename PointDataContainerType::ConstIterator              PointDataIterator;

  typedef TInputConfidencePointSet                                            ConfidencePointSetType;
  typedef typename ConfidencePointSetType::PointsContainer::ConstIterator     ConfidencePointsIterator;
  typedef typename ConfidencePointSetType::PixelType                          ConfidencePointDataType;
  typedef typename ConfidencePointSetType::PointDataContainer                 ConfidencePointDataContainerType;

  typedef TInputTensorPointSet                                                TensorPointSetType;
  typedef typename TensorPointSetType::PointsContainer::ConstIterator         TensorPointsIterator;
  typedef typename TensorPointSetType::PixelType                              TensorPointDataType;
  typedef typename TensorPointSetType::PointDataContainer                     TensorPointDataContainerType;
  typedef typename TensorPointDataContainerType::Iterator                     TensorPointDataIterator;

  typedef TInputMesh                                           MeshType;
  typedef typename MeshType::CellType                          CellType;
  typedef typename CellType::CellAutoPointer                   CellAutoPointer;
  typedef typename MeshType::CellsContainer                    CellsContainer;
  typedef typename CellsContainer::ConstIterator               CellIterator;

  typedef TriangleCell<CellType>                            TriangleType;
  typedef TetrahedronCell<CellType>                         TetrahedronType;
  typedef QuadrilateralCell<CellType>                       QuadrilateralType;
  typedef HexahedronCell<CellType>                          HexahedronType;
  typedef typename CellType::PointIdIterator                PointIdIterator;

  typedef TOutputImage                              ImageType;
  typedef typename ImageType::PixelType             PixelType;
  typedef typename ImageType::RegionType            RegionType;
  typedef typename ImageType::SizeType              SizeType;
  typedef typename ImageType::IndexType             IndexType;
  typedef typename ImageType::SpacingType           SpacingType;
  typedef ContinuousIndex<double, ImageDimension>   ContinuousIndexType;

  typedef ImageToRectilinearFEMObjectFilter<ImageType>      ImageToRectilinearFEMObjectFilterType;

  typedef FEMObject<ImageDimension>                 FEMObjectType;

  typedef RobustSolver<ImageDimension>              FEMSolverType;

  typedef Element3DC0LinearTetrahedronStrain        FEMTetrahedronType;
  typedef Element3DC0LinearHexahedronStrain         FEMHexahedronType;
  typedef Element2DC0LinearTriangularStrain         FEM2DTriangleType;
  typedef Element2DC0LinearQuadrilateralStrain      FEM2DQuadrilateralType;

  typedef Element::Node                             NodeType;

  typedef LoadNoisyLandmark                         LoadType;

  typedef MaterialLinearElasticity                  MaterialType;
  typedef MaterialType::Pointer                     MaterialPointerType;

  typedef Element::VectorType                       FEMVectorType;
  typedef Element::MatrixType                       FEMMatrixType;

  typedef typename FEMObjectType::LoadContainerType        LoadContainerType;
  typedef typename FEMObjectType::NodeContainerType        NodeContainerType;
  typedef typename FEMObjectType::ElementContainerType     ElementContainerType;
  typedef typename FEMObjectType::MaterialContainerType    MaterialContainerType;

  itkSetConstObjectMacro(ConfidencePointSet, ConfidencePointSetType);

  itkSetConstObjectMacro(TensorPointSet, TensorPointSetType);

  itkSetObjectMacro(Mesh, MeshType);
  itkGetModifiableObjectMacro(Mesh, MeshType);

  itkSetObjectMacro(FEMSolver, FEMSolverType);
  itkGetModifiableObjectMacro(FEMSolver, FEMSolverType);

  itkGetConstReferenceMacro(PixelsPerElement, ContinuousIndexType);
  itkSetMacro(PixelsPerElement, ContinuousIndexType);

  void SetElementSpacing(const SpacingType & elementSpacing);
  itkGetConstReferenceMacro(SpacingPerElement, SpacingType);

  itkGetConstReferenceMacro(NumberOfElements, SizeType);

protected:

  FEMScatteredDataPointSetToImageFilter();
  virtual ~FEMScatteredDataPointSetToImageFilter();

  void GenerateRectilinearMesh();

  void Generate2DQuadrilateralMesh();

  void Generate3DHexahedralMesh();

  void InitializeFEMObject(FEMObjectType * femObject);

  void InitializeMaterials(FEMObjectType * femObject);

  void InitializeNodes(FEMObjectType * femObject);

  void InitializeElements(FEMObjectType * femObject);

  void InitializeLoads(FEMObjectType * femObject);

  void GenerateData();

  void ProduceDeformationField();

  void PrintSelf(std::ostream & os, Indent indent) const;

private:

  FEMScatteredDataPointSetToImageFilter( const Self & ); // purposely not implemented.
  void operator=( const Self & ); // purposely not implemented

  typename FEMObjectType::Pointer      m_FEMObject;
  typename FEMSolverType::Pointer      m_FEMSolver;
  typename FEMSolverType::ConstPointer m_FEMDeformedObject;
  typename MeshType::Pointer           m_Mesh;

  typename ConfidencePointSetType::ConstPointer m_ConfidencePointSet;
  typename TensorPointSetType::ConstPointer     m_TensorPointSet;

  SizeType                 m_NumberOfElements;
  ContinuousIndexType      m_PixelsPerElement;
  SpacingType              m_SpacingPerElement;

  MaterialPointerType m_Material;
};

}// end namespace fem
}// end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkFEMScatteredDataPointSetToImageFilter.hxx"
#endif

#endif