source: trunk/source/geometry/solids/specific/include/G4TwistTubsHypeSide.hh@ 1036

Last change on this file since 1036 was 850, checked in by garnier, 17 years ago

geant4.8.2 beta
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[831]1//
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25//
26//
27// $Id: G4TwistTubsHypeSide.hh,v 1.5 2006/06/29 18:47:56 gunter Exp $
[850]28// GEANT4 tag $Name: HEAD $
[831]29//
30//
31// --------------------------------------------------------------------
32// GEANT 4 class header file
33//
34//
35// G4TwistTubsHypeSide
36//
37// Class description:
38//
39// Class describing a hyperbolic boundary surface for a cylinder.
40
41// Author:
42// 01-Aug-2002 - Kotoyo Hoshina (hoshina@hepburn.s.chiba-u.ac.jp)
43//
44// History:
45// 13-Nov-2003 - O.Link (Oliver.Link@cern.ch), Integration in Geant4
46// from original version in Jupiter-2.5.02 application.
47// --------------------------------------------------------------------
48#ifndef __G4TWISTTUBSHYPESIDE__
49#define __G4TWISTTUBSHYPESIDE__
50
51#include "G4VTwistSurface.hh"
52#include "G4Integrator.hh"
53#include "G4SimpleIntegration.hh"
54
55class G4TwistTubsHypeSide : public G4VTwistSurface
56{
57 public: // with description
58
59 G4TwistTubsHypeSide(const G4String &name,
60 const G4RotationMatrix &rot, // 0.5*(phi-width segment)
61 const G4ThreeVector &tlate,
62 const G4int handedness,// R-hand = 1, L-hand = -1
63 const G4double kappa, // tan(TwistAngle/2)/fZHalfLen
64 const G4double tanstereo, // tan(stereo angle)
65 const G4double r0, // radius at z = 0
66 const EAxis axis0 = kPhi,
67 const EAxis axis1 = kZAxis,
68 G4double axis0min = -kInfinity,
69 G4double axis1min = -kInfinity,
70 G4double axis0max = kInfinity,
71 G4double axis1max = kInfinity);
72
73 G4TwistTubsHypeSide(const G4String &name,
74 G4double EndInnerRadius[2],
75 G4double EndOuterRadius[2],
76 G4double DPhi,
77 G4double EndPhi[2],
78 G4double EndZ[2],
79 G4double InnerRadius,
80 G4double OuterRadius,
81 G4double Kappa,
82 G4double TanInnerStereo,
83 G4double TanOuterStereo,
84 G4int handedness) ;
85
86 virtual ~G4TwistTubsHypeSide();
87
88 virtual G4int DistanceToSurface(const G4ThreeVector &gp,
89 const G4ThreeVector &gv,
90 G4ThreeVector gxx[],
91 G4double distance[],
92 G4int areacode[],
93 G4bool isvalid[],
94 EValidate validate = kValidateWithTol);
95
96 virtual G4int DistanceToSurface(const G4ThreeVector &gp,
97 G4ThreeVector gxx[],
98 G4double distance[],
99 G4int areacode[]);
100
101 virtual G4ThreeVector GetNormal(const G4ThreeVector &xx,
102 G4bool isGlobal = false) ;
103 virtual EInside Inside(const G4ThreeVector &gp) ;
104
105 virtual G4double GetRhoAtPZ(const G4ThreeVector &p,
106 G4bool isglobal = false) const ;
107
108 virtual G4ThreeVector SurfacePoint(G4double, G4double,
109 G4bool isGlobal = false) ;
110 virtual G4double GetBoundaryMin(G4double phi) ;
111 virtual G4double GetBoundaryMax(G4double phi) ;
112 virtual G4double GetSurfaceArea() ;
113 virtual void GetFacets( G4int m, G4int n, G4double xyz[][3],
114 G4int faces[][4], G4int iside ) ;
115
116 public: // without description
117
118 G4TwistTubsHypeSide(__void__&);
119 // Fake default constructor for usage restricted to direct object
120 // persistency for clients requiring preallocation of memory for
121 // persistifiable objects.
122
123 private:
124
125 virtual G4int GetAreaCode(const G4ThreeVector &xx,
126 G4bool withTol = true);
127 virtual G4int GetAreaCodeInPhi(const G4ThreeVector &xx,
128 G4bool withTol = true);
129 virtual void SetCorners();
130
131 virtual void SetCorners(G4double EndInnerRadius[2],
132 G4double EndOuterRadius[2],
133 G4double DPhi,
134 G4double EndPhi[2],
135 G4double EndZ[2]);
136 virtual void SetBoundaries();
137
138 private:
139
140 G4double fKappa; // std::tan(TwistedAngle/2)/HalfLenZ;
141 G4double fTanStereo; // std::tan(StereoAngle)
142 G4double fTan2Stereo; // std::tan(StereoAngle)**2
143 G4double fR0; // radius at z = 0
144 G4double fR02; // radius**2 at z = 0
145 G4double fDPhi ; // segment
146
147 class Insidetype
148 {
149 public:
150 G4ThreeVector gp;
151 EInside inside;
152 };
153 Insidetype fInside;
154};
155
156//========================================================
157// inline functions
158//========================================================
159
160inline
161G4double G4TwistTubsHypeSide::GetRhoAtPZ(const G4ThreeVector &p,
162 G4bool isglobal) const
163{
164 // Get Rho at p.z() on Hyperbolic Surface.
165 G4ThreeVector tmpp;
166 if (isglobal) {
167 tmpp = fRot.inverse()*p - fTrans;
168 } else {
169 tmpp = p;
170 }
171 return std::sqrt(fR02 + tmpp.z() * tmpp.z() * fTan2Stereo);
172}
173
174inline
175G4ThreeVector G4TwistTubsHypeSide::
176SurfacePoint(G4double phi , G4double z , G4bool isGlobal)
177{
178 G4double rho = std::sqrt(fR02 + z * z * fTan2Stereo) ;
179
180 G4ThreeVector SurfPoint (rho*std::cos(phi), rho*std::sin(phi), z) ;
181
182 if (isGlobal) { return (fRot * SurfPoint + fTrans); }
183 return SurfPoint;
184}
185
186inline
187G4double G4TwistTubsHypeSide::GetBoundaryMin(G4double z)
188{
189 G4ThreeVector ptmp(0,0,z) ; // temporary point with z Komponent only
190 G4ThreeVector lowerlimit; // lower phi-boundary limit at z = ptmp.z()
191 lowerlimit = GetBoundaryAtPZ(sAxis0 & sAxisMin, ptmp);
192 return std::atan2( lowerlimit.y(), lowerlimit.x() ) ;
193}
194
195inline
196G4double G4TwistTubsHypeSide::GetBoundaryMax(G4double z )
197{
198 G4ThreeVector ptmp(0,0,z) ; // temporary point with z Komponent only
199 G4ThreeVector upperlimit; // upper phi-boundary limit at z = ptmp.z()
200 upperlimit = GetBoundaryAtPZ(sAxis0 & sAxisMax, ptmp);
201 return std::atan2( upperlimit.y(), upperlimit.x() ) ;
202}
203
204inline
205G4double G4TwistTubsHypeSide::GetSurfaceArea()
206{
207 // approximation with tube surface
208
209 return ( fAxisMax[1] - fAxisMin[1] ) * fR0 * fDPhi ;
210}
211
212#endif
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