otbPolygon.h

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/*
 * Copyright (C) 2005-2022 Centre National d'Etudes Spatiales (CNES)
 *
 * This file is part of Orfeo Toolbox
 *
 *     https://www.orfeo-toolbox.org/
 *
 * 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
 *
 * 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 otbPolygon_h
#define otbPolygon_h
 
#include "otbPolyLineParametricPathWithValue.h"
 
namespace otb
{
template <class TValue = double>
class ITK_EXPORT Polygon : public PolyLineParametricPathWithValue<TValue, 2>
{
public:
  typedef Polygon Self;
  typedef PolyLineParametricPathWithValue<TValue, 2> Superclass;
  typedef itk::SmartPointer<Self>       Pointer;
  typedef itk::SmartPointer<const Self> ConstPointer;
  typedef TValue                        ValueType;
 
  itkNewMacro(Self);
 
  itkTypeMacro(Polygon, PolyLineParametricPathWithValue);
 
  typedef typename Superclass::VertexType                  VertexType;
  typedef typename Superclass::VertexListType              VertexListType;
  typedef typename Superclass::ContinuousIndexType         ContinuousIndexType;
  typedef typename Superclass::VertexListConstIteratorType VertexListConstIteratorType;
 
  itkSetMacro(Epsilon, double);
  itkGetMacro(Epsilon, double);
 
  bool IsInside(VertexType point) const;
 
  bool IsOnEdge(VertexType point) const;
 
  unsigned int NbCrossing(VertexType a, VertexType b) const;
 
  unsigned int NbTouching(VertexType a, VertexType b) const;
 
  bool IsCrossing(VertexType a1, VertexType a2, VertexType b1, VertexType b2) const;
 
  bool IsTouching(VertexType a1, VertexType a2, VertexType b1, VertexType b2) const;
 
  virtual double GetArea() const;
 
  double GetLength() const override;
 
  void AddVertex(const ContinuousIndexType& vertex) override;
 
protected:
  Polygon()
  {
    m_Epsilon     = 0.000001;
    m_Area        = -1.0;
    m_AreaIsValid = false;
  };
 
  ~Polygon() override
  {
  }
 
  void PrintSelf(std::ostream& os, itk::Indent indent) const override;
 
  virtual void ComputeArea() const;
  void         Modified() const override;
 
private:
  Polygon(const Self&) = delete;
  void operator=(const Self&) = delete;
 
  double         m_Epsilon;
  mutable double m_Area;
  mutable bool   m_AreaIsValid;
};
} // End namespace otb
 
#ifndef OTB_MANUAL_INSTANTIATION
#include "otbPolygon.hxx"
#endif
#endif