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PHField3DCartesian.h
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1 #ifndef PHFIELD_PHFIELD3DCARTESIAN_H
2 #define PHFIELD_PHFIELD3DCARTESIAN_H
3 
4 #include "PHField.h"
5 
6 #include <cmath>
7 #include <map>
8 #include <set>
9 #include <string>
10 #include <tuple>
11 
12 class PHField3DCartesian : public PHField
13 {
14  public:
15  explicit PHField3DCartesian(const std::string &fname, const float magfield_rescale = 1.0, const float innerradius = 0, const float outerradius = 1.e10, const float size_z = 1.e10);
16  ~PHField3DCartesian() override;
17 
22  void GetFieldValue(const double Point[4], double *Bfield) const override;
23 
24  private:
25  std::string filename;
26  double xmin = 1000000;
27  double xmax = -1000000;
28  double ymin = 1000000;
29  double ymax = -1000000;
30  double zmin = 1000000;
31  double zmax = -1000000;
32  double xstepsize = NAN;
33  double ystepsize = NAN;
34  double zstepsize = NAN;
35  // these are updated in a const method
36  // to cache previous values
37  mutable double xyz[2][2][2][3]{};
38  mutable double bf[2][2][2][3]{};
39  mutable double xkey_save = NAN;
40  mutable double ykey_save = NAN;
41  mutable double zkey_save = NAN;
42  mutable int cache_hits = 0;
43  mutable int cache_misses = 0;
44 
45  typedef std::tuple<float, float, float> trio;
46  std::map<std::tuple<float, float, float>, std::tuple<float, float, float> > fieldmap;
47  std::set<float> xvals;
48  std::set<float> yvals;
49  std::set<float> zvals;
50 };
51 
52 #endif