itkQuadEdgeMeshEulerOperatorJoinVertexFunction.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.
 *
 *=========================================================================*/
#ifndef itkQuadEdgeMeshEulerOperatorJoinVertexFunction_h
#define itkQuadEdgeMeshEulerOperatorJoinVertexFunction_h
 
#include "itkQuadEdgeMeshFunctionBase.h"
 
#include <stack>
 
namespace itk
{
template <typename TMesh, typename TQEType>
class ITK_TEMPLATE_EXPORT QuadEdgeMeshEulerOperatorJoinVertexFunction
  : public QuadEdgeMeshFunctionBase<TMesh, TQEType *>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(QuadEdgeMeshEulerOperatorJoinVertexFunction);

  using Self = QuadEdgeMeshEulerOperatorJoinVertexFunction;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;
  using Superclass = QuadEdgeMeshFunctionBase<TMesh, TQEType *>;
 
  itkNewMacro(Self);
  itkOverrideGetNameOfClassMacro(QuadEdgeMeshEulerOperatorJoinVertexFunction);

  using QEType = TQEType;
 
  using typename Superclass::MeshType;
  using typename Superclass::OutputType;
 
  using PointIdentifier = typename MeshType::PointIdentifier;
  using CellIdentifier = typename MeshType::CellIdentifier;
  using FaceRefType = typename MeshType::FaceRefType;

  virtual OutputType
  Evaluate(QEType * e);
 
  enum EdgeStatusType
  {
    STANDARD_CONFIG = 0,
    EDGE_NULL,                     // 1
    MESH_NULL,                     // 2
    EDGE_ISOLATED,                 // 3
    TOO_MANY_COMMON_VERTICES,      // 4
    TETRAHEDRON_CONFIG,            // 5
    QUADEDGE_ISOLATED,             // 6
    FACE_ISOLATED,                 // 7
    SAMOSA_CONFIG,                 // 8
    EYE_CONFIG,                    // 9
    EDGE_JOINING_DIFFERENT_BORDERS // 10
  };
 
  itkGetConstMacro(OldPointID, PointIdentifier);
  itkGetConstMacro(EdgeStatus, EdgeStatusType);
 
protected:
  QuadEdgeMeshEulerOperatorJoinVertexFunction();
  ~QuadEdgeMeshEulerOperatorJoinVertexFunction() override = default;
 
  void
  PrintSelf(std::ostream & os, Indent indent) const override;
 
  PointIdentifier m_OldPointID{};
 
  EdgeStatusType m_EdgeStatus{};

  PointIdentifier
  CommonVertexNeighboor(QEType * e);

  bool
  IsTetrahedron(QEType * e);

  bool
  IsFaceIsolated(QEType * e, const bool iWasLeftFace, std::stack<TQEType *> & oToBeDeleted);
 
  bool
  IsSamosa(QEType * e);
 
  bool
  IsEye(QEType * e);
 
  bool
  IsEdgeLinkingTwoDifferentBorders(QEType * e);
 
  EdgeStatusType
  CheckStatus(QEType * e, std::stack<TQEType *> & oToBeDeleted);
 
  QEType *
  Process(QEType * e);
 
  QEType *
  ProcessIsolatedQuadEdge(QEType * e);
 
  QEType *
  ProcessIsolatedFace(QEType * e, std::stack<QEType *> & EdgesToBeDeleted);
};
} // end namespace itk
 
#include "itkQuadEdgeMeshEulerOperatorJoinVertexFunction.hxx"
 
#endif