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CylinderGeomIntt.h
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1 #ifndef INTT_CYLINDERGEOMINTT_H
2 #define INTT_CYLINDERGEOMINTT_H
3 
4 #include <g4detectors/PHG4CylinderGeom.h>
5 
6 #include <cmath>
7 #include <iostream>
8 
9 #include <TVector3.h>
10 
11 class CylinderGeomIntt : public PHG4CylinderGeom
12 {
13  public:
14  CylinderGeomIntt();
15  CylinderGeomIntt(
16  const int layer,
17  const double strip_x,
18  const double strip_y,
19  const double strip_z0,
20  const double strip_z1,
21  const int nstrips_z_sensor0,
22  const int nstrips_z_sensor1,
23  const int nstrips_phi_cell,
24  const int nladders_layer,
25  const double ladder_z0,
26  const double ladder_z1,
27  const double sensor_radius,
28  const double strip_x_offset,
29  const double offsetphi,
30  const double offsetrot)
31  : m_Layer(layer)
32  , m_NStripsPhiCell(nstrips_phi_cell)
33  , m_StripX(strip_x)
34  , m_StripY(strip_y)
35  , m_SensorRadius(sensor_radius)
36  , m_StripXOffset(strip_x_offset)
37  , m_OffsetPhi(offsetphi)
38  , m_OffsetRot(offsetrot)
39  {
40  // Type-A
41  m_StripZ[0] = strip_z0;
42  m_LadderZ[0] = ladder_z0;
43  m_NStripsZSensor[0] = nstrips_z_sensor0;
44 
45  // Type-B
46  m_StripZ[1] = strip_z1;
47  m_LadderZ[1] = ladder_z1;
48  m_NStripsZSensor[1] = nstrips_z_sensor1;
49 
50  m_dPhi = 2. * M_PI / nladders_layer;
51  }
52 
53 // from PHObject
54  void identify(std::ostream &os = std::cout) const override;
55 
56 // overridden from base class
57  double get_thickness() const override
58  {
59  return m_StripX;
60  }
61 
62  double get_strip_y_spacing() const override
63  {
64  return m_StripY;
65  }
66 
67  double get_strip_z_spacing() const override
68  {
69  return m_StripZ[0];
70  }
71 
72  double get_strip_tilt() const override
73  {
74  return 0.;
75  }
76 
77 
78  void set_layer(const int i) override
79  {
80  m_Layer = i;
81  }
82 
83  int get_layer() const override
84  {
85  return m_Layer;
86  }
87 
88  double get_radius() const override
89  {
90  return m_SensorRadius;
91  }
92 
93 // our own
94  void find_segment_center(const int segment_z_bin, const int segment_phi_bin, double location[]) override;
95  void find_strip_center(const int segment_z_bin, const int segment_phi_bin, const int strip_column, const int strip_index, double location[]) override;
96  void find_strip_index_values(const int segment_z_bin, const double ypos, const double zpos, int &strip_y_index, int &strip_z_index) override;
97 
98  bool load_geometry();
99  void find_strip_center_localcoords(const int segment_z_bin, const int strip_y_index, const int strip_z_index, double location[]);
100  void find_indices_from_segment_center(int &segment_z_bin, int &segment_phi_bin, double location[]);
101  TVector3 get_local_from_world_coords(const int segment_z_bin, const int segment_phi_bin, TVector3 world);
102  void find_indices_from_world_location(int &segment_z_bin, int &segment_phi_bin, double location[]);
103 
104  double get_strip_phi_tilt() const
105  {
106  return m_OffsetRot;
107  }
108 
109  protected:
110  int m_Layer;
111  int m_NStripsPhiCell;
112  int m_NStripsZSensor[2];
113  double m_StripX;
114  double m_StripY;
115  double m_SensorRadius;
116  double m_StripXOffset;
117  double m_OffsetPhi;
118  double m_OffsetRot;
119  double m_dPhi;
120 
121  double m_StripZ[2];
122  double m_LadderZ[2];
123 
124  ClassDefOverride(CylinderGeomIntt, 1)
125 };
126 
127 #endif