itkQuadEdgeMeshEulerOperatorJoinVertexFunction.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
 *
 *  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_ASSIGN(QuadEdgeMeshEulerOperatorJoinVertexFunction);

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

  itkNewMacro(Self);
  itkTypeMacro(QuadEdgeMeshEulerOperatorJoinVertexFunction, QuadEdgeMeshFunctionBase);

  using QEType = TQEType;

  using MeshType = typename Superclass::MeshType;
  using OutputType = typename Superclass::OutputType;

  using PointIdentifier = typename MeshType::PointIdentifier;
  using CellIdentifier = typename MeshType::CellIdentifier;
  using FaceRefType = typename MeshType::FaceRefType;

  virtual OutputType Evaluate(QEType *h);

  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