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TGeoPgon.h
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1 // @(#)root/geom:$Id$
2 // Author: Andrei Gheata 31/01/02
3 
4 /*************************************************************************
5  * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
6  * All rights reserved. *
7  * *
8  * For the licensing terms see $ROOTSYS/LICENSE. *
9  * For the list of contributors see $ROOTSYS/README/CREDITS. *
10  *************************************************************************/
11 
12 #ifndef ROOT_TGeoPgon
13 #define ROOT_TGeoPgon
14 
15 #include <mutex>
16 
17 #include "TGeoPcon.h"
18 
19 class TGeoPgon : public TGeoPcon
20 {
21 public:
22  struct ThreadData_t
23  {
24  Int_t *fIntBuffer; //![fNedges+4] temporary int buffer array
25  Double_t *fDblBuffer; //![fNedges+4] temporary double buffer array
26 
27  ThreadData_t();
28  ~ThreadData_t();
29  };
30  ThreadData_t& GetThreadData() const;
31  void ClearThreadData() const;
32  void CreateThreadData(Int_t nthreads);
33 
34 protected:
35  // data members
36  Int_t fNedges; // number of edges (at least one)
37  mutable std::vector<ThreadData_t*> fThreadData; //! Navigation data per thread
38  mutable Int_t fThreadSize; //! Size for the navigation data array
39  mutable std::mutex fMutex; //! Mutex for thread data
40 
41  // internal utility methods
42  Int_t GetPhiCrossList(const Double_t *point, const Double_t *dir, Int_t istart, Double_t *sphi, Int_t *iphi, Double_t stepmax=TGeoShape::Big()) const;
43  Bool_t IsCrossingSlice(const Double_t *point, const Double_t *dir, Int_t iphi, Double_t sstart, Int_t &ipl, Double_t &snext, Double_t stepmax) const;
44  void LocatePhi(const Double_t *point, Int_t &ipsec) const;
45  Double_t Rpg(Double_t z, Int_t ipl, Bool_t inner, Double_t &a, Double_t &b) const;
46  Double_t Rproj(Double_t z,const Double_t *point, const Double_t *dir, Double_t cphi, Double_t sphi, Double_t &a, Double_t &b) const;
47  Bool_t SliceCrossing(const Double_t *point, const Double_t *dir, Int_t nphi, Int_t *iphi, Double_t *sphi, Double_t &snext, Double_t stepmax) const;
48  Bool_t SliceCrossingIn(const Double_t *point, const Double_t *dir, Int_t ipl, Int_t nphi, Int_t *iphi, Double_t *sphi, Double_t &snext, Double_t stepmax) const;
49  Bool_t SliceCrossingZ(const Double_t *point, const Double_t *dir, Int_t nphi, Int_t *iphi, Double_t *sphi, Double_t &snext, Double_t stepmax) const;
50  Bool_t SliceCrossingInZ(const Double_t *point, const Double_t *dir, Int_t nphi, Int_t *iphi, Double_t *sphi, Double_t &snext, Double_t stepmax) const;
51 
52 public:
53  // constructors
54  TGeoPgon();
55  TGeoPgon(Double_t phi, Double_t dphi, Int_t nedges, Int_t nz);
56  TGeoPgon(const char *name, Double_t phi, Double_t dphi, Int_t nedges, Int_t nz);
57  TGeoPgon(Double_t *params);
58  // destructor
59  virtual ~TGeoPgon();
60  // methods
61  virtual Double_t Capacity() const;
62  virtual void ComputeBBox();
63  virtual void ComputeNormal(const Double_t *point, const Double_t *dir, Double_t *norm);
64  virtual void ComputeNormal_v(const Double_t *points, const Double_t *dirs, Double_t *norms, Int_t vecsize);
65  virtual Bool_t Contains(const Double_t *point) const;
66  virtual void Contains_v(const Double_t *points, Bool_t *inside, Int_t vecsize) const;
67  virtual Double_t DistFromInside(const Double_t *point, const Double_t *dir, Int_t iact=1,
68  Double_t step=TGeoShape::Big(), Double_t *safe=0) const;
69  virtual void DistFromInside_v(const Double_t *points, const Double_t *dirs, Double_t *dists, Int_t vecsize, Double_t *step) const;
70  virtual Double_t DistFromOutside(const Double_t *point, const Double_t *dir, Int_t iact=1,
71  Double_t step=TGeoShape::Big(), Double_t *safe=0) const;
72  virtual void DistFromOutside_v(const Double_t *points, const Double_t *dirs, Double_t *dists, Int_t vecsize, Double_t *step) const;
73  virtual Int_t DistancetoPrimitive(Int_t px, Int_t py);
74  virtual TGeoVolume *Divide(TGeoVolume *voldiv, const char *divname, Int_t iaxis, Int_t ndiv,
75  Double_t start, Double_t step);
76  virtual void GetBoundingCylinder(Double_t *param) const;
77  virtual const TBuffer3D &GetBuffer3D(Int_t reqSections, Bool_t localFrame) const;
78  virtual Int_t GetByteCount() const {return 64+12*fNz;}
79  virtual TGeoShape *GetMakeRuntimeShape(TGeoShape * /*mother*/, TGeoMatrix * /*mat*/) const {return 0;}
80  virtual void GetMeshNumbers(Int_t &nvert, Int_t &nsegs, Int_t &npols) const;
81  Int_t GetNedges() const {return fNedges;}
82  virtual Int_t GetNmeshVertices() const;
83  virtual Int_t GetNsegments() const {return fNedges;}
84  virtual Bool_t GetPointsOnSegments(Int_t npoints, Double_t *array) const {return TGeoBBox::GetPointsOnSegments(npoints,array);}
85  virtual void InspectShape() const;
86  virtual TBuffer3D *MakeBuffer3D() const;
87  virtual Double_t Safety(const Double_t *point, Bool_t in=kTRUE) const;
88  virtual void Safety_v(const Double_t *points, const Bool_t *inside, Double_t *safe, Int_t vecsize) const;
89  Double_t SafetyToSegment(const Double_t *point, Int_t ipl, Int_t iphi, Bool_t in, Double_t safphi, Double_t safmin=TGeoShape::Big()) const;
90  virtual void SavePrimitive(std::ostream &out, Option_t *option = "");
91  virtual void SetDimensions(Double_t *param);
92  void SetNedges(Int_t ne) {if (ne>2) fNedges=ne;}
93  virtual void SetPoints(Double_t *points) const;
94  virtual void SetPoints(Float_t *points) const;
95  virtual void SetSegsAndPols(TBuffer3D &buff) const;
96  virtual void Sizeof3D() const;
97 
98  ClassDef(TGeoPgon, 1) // polygone class
99 };
100 
101 #endif