PHField3DCartesian.h

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#ifndef __PHField3DCartesian_H__
#define __PHField3DCartesian_H__
 
#include "PHField.h"
 
#include <boost/tuple/tuple.hpp>
 
#include <map>
#include <set>
 
class PHField3DCartesian : public PHField
{
 public:
  PHField3DCartesian(const std::string &fname, const float magfield_rescale = 1.0);
  virtual ~PHField3DCartesian();
 
  void GetFieldValue(const double Point[4], double *Bfield) const;
 
  double GetZMin() const { return zmin; }
  double GetZMax() const { return zmax; }
 
 protected:
  std::string filename;
        std::set<double> xvals;
        std::set<double> yvals;
        std::set<double> zvals;
        std::map<boost::tuple<double, double, double>, boost::tuple<double, double, double> > fieldmap;
  double xmin;
  double xmax;
  double ymin;
  double ymax;
  double zmin;
  double zmax;
  double xstepsize;
  double ystepsize;
  double zstepsize;
  // these are updated in a const method
  // to cache previous values
  mutable double xyz[2][2][2][3];
  mutable double bf[2][2][2][3];
  mutable double xkey_save;
  mutable double ykey_save;
  mutable double zkey_save;
  mutable int cache_hits;
  mutable int cache_misses;
};
 
#endif  // __PHFIELD3D_H