NaifDskPlateModel.h

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#ifndef NaifDskPlateModel_h
#define NaifDskPlateModel_h

#include <QMutex>
#include <QSharedPointer>
#include <QString>

#include "NaifDskApi.h"

namespace Isis {

  class Intercept;
  class Latitude;
  class Longitude;
  class SurfacePoint;

  class NaifDskPlateModel {

    public:
      NaifDskPlateModel();
      NaifDskPlateModel(const QString &dskfile);
      virtual ~NaifDskPlateModel();

      bool isValid() const;
      QString filename() const;

      int size() const;
      SpiceInt numberPlates() const;
      SpiceInt numberVertices() const;

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

      // Lower level I/O
      bool     isPlateIdValid(const SpiceInt plateid) const;
      SpiceInt plateIdOfIntercept(const NaifVertex &vertex,
                                     const NaifVector &raydir,
                                     NaifVertex &xpoint) const;
      NaifTriangle plate(SpiceInt plateid) const;

      NaifDskPlateModel *clone() const;

    private:
      enum ErrAction { Throw,  
                       NoThrow 
      };

      class NaifDskDescriptor {
        public:
          NaifDskDescriptor();
          ~NaifDskDescriptor();

          QString       m_dskfile;  
          SpiceInt      m_handle;   
          SpiceDLADescr m_dladsc;   
          SpiceDSKDescr m_dskdsc;   
          SpiceInt      m_plates;   
          SpiceInt      m_vertices; 
          QMutex        m_mutex;    
      };

      // Shared file descriptor supports copying of object
      typedef QSharedPointer<NaifDskDescriptor>  SharedNaifDskDescriptor;
      SharedNaifDskDescriptor  m_dsk; 

      NaifDskDescriptor *openDSK(const QString &dskfile);
      bool verify(const bool &test, const QString &errmsg,
                  const ErrAction &action = Throw) const;
      SurfacePoint *makePoint(const NaifVertex &v) const;
  };

} // namespace Isis

#endif