/*=========================================================================

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkPolygonSpatialObject.h,v $
  Language:  C++
  Date:      $Date: 2007/01/28 19:24:56 $
  Version:   $Revision: 1.10 $

  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even 
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
     PURPOSE.  See the above copyright notices for more information.

=========================================================================*/
#ifndef __itkPolygonSpatialObject_h
#define __itkPolygonSpatialObject_h
#include "itkBlobSpatialObject.h"
#include "itkPolygonGroupOrientation.h"

namespace itk
{
template <unsigned int TDimension = 3> class 
PolygonSpatialObject
  :public BlobSpatialObject<TDimension>
{
public:
  typedef PolygonSpatialObject<TDimension>       Self;
  typedef BlobSpatialObject< TDimension >        Superclass;
  typedef SmartPointer < Self >                  Pointer;
  typedef SmartPointer < const Self >            ConstPointer;
  typedef typename Superclass::PointType         PointType;
  typedef typename Superclass::TransformType     TransformType;
  typedef typename Superclass::PointListType     PointListType;
  typedef typename Superclass::BlobPointType     BlobPointType;
  /** Method for creation through the object factory. */
  itkNewMacro( Self );

  /** Method for creation through the object factory. */
  itkTypeMacro( PolygonSpatialObject, BlobSpatialObject );
  
  /** Method returning plane alignment of strand */
  PolygonGroupOrientation Plane();

  /** Method sets the thickness of the current strand */
  itkSetMacro(Thickness,double);

  /** Method gets the thickness of the current strand */
  itkGetMacro(Thickness,double);

  /** Returns if the polygon is closed */
  bool IsClosed();

  /** Returns the number of points of the polygon */
  unsigned int NumberOfPoints() const;

  /** Method returns the Point closest to the given point */
  PointType ClosestPoint(PointType &curPoint);

  /** Method returns area of polygon described by points */
  double MeasureArea();

  /** Method returns the volume of the strand */
  double MeasureVolume();

  /** Method returns the length of the perimeter */
  double MeasurePerimeter();

  /** Method deletes a point from the strand */
  bool DeletePoint(PointType &pointToDelete);

  /** Method adds a point to the end of the strand */
  bool AddPoint(PointType &pointToAdd);

  /** Method inserts point after point1 */
  bool InsertPoint(PointType &point1, PointType &pointToAdd);

  /** Method replaces a point */
  bool ReplacePoint(PointType &oldpoint, PointType &newPoint);

  /** Method removes the series of points between startpoint and endpoint */
  bool RemoveSegment(PointType &startpoint,PointType &endPoint);

  /** Test whether a point is inside or outside the object. */ 
  virtual bool IsInside( const PointType & point,
                         unsigned int depth,
                         char * name) const;

  /** Test whether a point is inside or outside the object 
   *  For computational speed purposes, it is faster if the method does not
   *  check the name of the class and the current depth */ 
  virtual bool IsInside( const PointType & point) const
    {
    return this->IsInside(point, 0, NULL);
    };

private:
  PolygonSpatialObject(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented
  
  PolygonGroupOrientation m_Orientation;
  double                  m_Thickness;
  PolygonSpatialObject() 
    { 
    m_Orientation = Unknown; 
    m_Thickness = 0.0;
    }
};
}
#ifndef ITK_MANUAL_INSTANTIATION 
#include "itkPolygonSpatialObject.txx" 
#endif 

#endif  // __itkPolygonSpatialObject_h
