TriangularPlate.h

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#ifndef TriangularPlate_h
#define TriangularPlate_h

#include "AbstractPlate.h"

#include "NaifDskApi.h"

namespace Isis {

  class Angle;
  class Distance;
  class Intercept;
  class Latitude;
  class Longitude;
  class SurfacePoint;
  
  class TriangularPlate : public AbstractPlate {
    public:
      TriangularPlate(const NaifTriangle &plate, const int &plateId = 0);
      virtual ~TriangularPlate();

      int id() const;
      QString name() const;

      Distance minRadius() const;
      Distance maxRadius() const;

      double area() const;
      NaifVector normal() const;
      NaifVector center() const;

      Angle separationAngle(const NaifVector &raydir) const;

      bool hasIntercept(const NaifVertex &vertex, const NaifVector &raydir) const;
      bool hasPoint(const Latitude &lat, const Longitude &lon) const;

      SurfacePoint *point(const Latitude &lat, const Longitude &lon) const;
      Intercept *intercept(const NaifVertex &vertex, const NaifVector &raydir) const;

      NaifVertex vertex(int v) const;

      AbstractPlate *clone() const;

    protected:
      bool findPlateIntercept(const NaifVertex &obs, const NaifVector &raydir, 
                              NaifVertex &point) const;
  
    private:
      TriangularPlate();  // Disallow an empty instantiation of the class
      NaifTriangle m_plate;   
      int          m_plateId; 
  
  };
};

#endif