itkTriangleMeshCurvatureCalculator.h

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/*=========================================================================
 *
 *  Copyright NumFOCUS
 *
 *  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
 *
 *         https://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.
 *
 *=========================================================================*/
/*=========================================================================
 *
 *  Portions of this file are subject to the VTK Toolkit Version 3 copyright.
 *
 *  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
 *
 *  For complete copyright, license and disclaimer of warranty information
 *  please refer to the NOTICE file at the top of the ITK source tree.
 *
 *=========================================================================*/
 
#ifndef itkTriangleMeshCurvatureCalculator_h
#define itkTriangleMeshCurvatureCalculator_h
 
#include <iostream>
#include "itkMesh.h"
#include "itkTriangleCell.h"
#include "itkVectorContainer.h"
 
namespace itk
{
class TriangleMeshCurvatureCalculatorEnums
{
public:
  enum class Curvatures : uint8_t
  {
    GaussCurvature,
    MeanCurvature,
    MinCurvature,
    MaxCurvature
  };
};
 
extern ITKMesh_EXPORT std::ostream &
                      operator<<(std::ostream & out, const TriangleMeshCurvatureCalculatorEnums::Curvatures value);

template <typename TInputMesh>
class ITK_TEMPLATE_EXPORT TriangleMeshCurvatureCalculator : public Object
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(TriangleMeshCurvatureCalculator);

  using Self = TriangleMeshCurvatureCalculator;

  using Superclass = Object;

  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;

  itkNewMacro(Self);

  itkOverrideGetNameOfClassMacro(TriangleMeshCurvatureCalculator);

  using InputMeshType = TInputMesh;
  using PointIdentifier = typename InputMeshType::PointIdentifier;
  using MeshConstPointer = typename InputMeshType::ConstPointer;
  using MeshPointType = typename InputMeshType::PointType;
  using MeshPointIdConstIterator = typename InputMeshType::CellTraits::PointIdConstIterator;
  using MeshPointsContainerConstPointer = typename InputMeshType::PointsContainerConstPointer;
  using CellsContainerConstPointer = typename InputMeshType::CellsContainerConstPointer;
  using CellsContainerConstIterator = typename InputMeshType::CellsContainer::ConstIterator;
  using CellType = typename InputMeshType::CellType;
  using TriangleCellType = itk::TriangleCell<CellType>;
  using DoubleVectorContainer = typename itk::VectorContainer<PointIdentifier, double>;
  using DoubleVectorContainerPointer = typename DoubleVectorContainer::Pointer;
  using CurvaturesEnum = TriangleMeshCurvatureCalculatorEnums::Curvatures;

  itkSetMacro(CurvatureType, TriangleMeshCurvatureCalculatorEnums::Curvatures);
  itkGetConstMacro(CurvatureType, TriangleMeshCurvatureCalculatorEnums::Curvatures);

  itkSetObjectMacro(TriangleMesh, InputMeshType);

  itkGetConstObjectMacro(GaussCurvatureData, DoubleVectorContainer);

  void
  SetCurvatureTypeToGaussian()
  {
    this->SetCurvatureType(TriangleMeshCurvatureCalculatorEnums::Curvatures::GaussCurvature);
  }

  void
  Compute();
 
protected:
  TriangleMeshCurvatureCalculator() = default;
  ~TriangleMeshCurvatureCalculator() override = default;
 
  void
  PrintSelf(std::ostream & os, Indent indent) const override;

  void
  ComputeGaussCurvature(const InputMeshType * inputMesh);
 
private:
  CurvaturesEnum               m_CurvatureType = CurvaturesEnum::GaussCurvature;
  DoubleVectorContainerPointer m_GaussCurvatureData{};
  MeshConstPointer             m_TriangleMesh{};
};
 
} // namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkTriangleMeshCurvatureCalculator.hxx"
#endif
 
#endif