Portal.h

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#if !defined(Portal_h)
#define Portal_h

#include <cmath>
#include "PixelType.h"
#include "Buffer.h"

namespace Isis {
  class Portal : public Isis::Buffer {

    private:
      double p_hotSample;  
      double p_hotLine;    
    public:
      // Constructors and Destructors

      Portal(const int bufSamps, const int bufLines, const Isis::PixelType type,
             const double hotSamp = -0.5, const double hotLine = -0.5) :
        Isis::Buffer(bufSamps, bufLines, 1, type) {
        p_hotSample = hotSamp;
        p_hotLine = hotLine;
      };

      ~Portal() {};

      inline void SetPosition(const double sample, const double line,
                              const int band) {
        Isis::Buffer::SetBasePosition((int)floor(sample - p_hotSample),
                                      (int)floor(line - p_hotLine), band);
      };

      inline void SetHotSpot(const double sample = -0.5, const double line = -0.5) {
        p_hotSample = sample;
        p_hotLine = line;
      };
  };
};

#endif