| Geant4 Cross Reference |
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25 // 25 //
26 // 26 //
27 // ------------------------------------------- 27 // ------------------------------------------------------------
28 // GEANT 4 class implementation file 28 // GEANT 4 class implementation file
29 // ------------------------------------------- 29 // ------------------------------------------------------------
30 // 30 //
31 31
32 #include "G4ErrorSurfaceTrajState.hh" 32 #include "G4ErrorSurfaceTrajState.hh"
33 #include "G4ErrorPropagatorData.hh" 33 #include "G4ErrorPropagatorData.hh"
34 34
35 #include "G4PhysicalConstants.hh" 35 #include "G4PhysicalConstants.hh"
36 #include "G4SystemOfUnits.hh" 36 #include "G4SystemOfUnits.hh"
37 #include "G4Field.hh" 37 #include "G4Field.hh"
38 #include "G4FieldManager.hh" 38 #include "G4FieldManager.hh"
39 #include "G4TransportationManager.hh" 39 #include "G4TransportationManager.hh"
40 40
41 #include "G4ErrorMatrix.hh" 41 #include "G4ErrorMatrix.hh"
42 42
43 #include <iomanip> 43 #include <iomanip>
44 44
45 //-------------------------------------------- 45 //------------------------------------------------------------------------
46 G4ErrorSurfaceTrajState::G4ErrorSurfaceTrajSta 46 G4ErrorSurfaceTrajState::G4ErrorSurfaceTrajState(
47 const G4String& partType, const G4Point3D& p 47 const G4String& partType, const G4Point3D& pos, const G4Vector3D& mom,
48 const G4Vector3D& vecU, const G4Vector3D& ve 48 const G4Vector3D& vecU, const G4Vector3D& vecV, const G4ErrorTrajErr& errmat)
49 : G4ErrorTrajState(partType, pos, mom, errma 49 : G4ErrorTrajState(partType, pos, mom, errmat)
50 { 50 {
51 Init(); 51 Init();
52 fTrajParam = G4ErrorSurfaceTrajParam(pos, mo 52 fTrajParam = G4ErrorSurfaceTrajParam(pos, mom, vecU, vecV);
53 } 53 }
54 54
55 //-------------------------------------------- 55 //------------------------------------------------------------------------
56 G4ErrorSurfaceTrajState::G4ErrorSurfaceTrajSta 56 G4ErrorSurfaceTrajState::G4ErrorSurfaceTrajState(const G4String& partType,
57 57 const G4Point3D& pos,
58 58 const G4Vector3D& mom,
59 59 const G4Plane3D& plane,
60 60 const G4ErrorTrajErr& errmat)
61 : G4ErrorTrajState(partType, pos, mom, errma 61 : G4ErrorTrajState(partType, pos, mom, errmat)
62 { 62 {
63 Init(); 63 Init();
64 fTrajParam = G4ErrorSurfaceTrajParam(pos, mo 64 fTrajParam = G4ErrorSurfaceTrajParam(pos, mom, plane);
65 } 65 }
66 66
67 //-------------------------------------------- 67 //------------------------------------------------------------------------
68 G4ErrorSurfaceTrajState::G4ErrorSurfaceTrajSta 68 G4ErrorSurfaceTrajState::G4ErrorSurfaceTrajState(G4ErrorFreeTrajState& tpSC,
69 69 const G4Plane3D& plane)
70 : G4ErrorTrajState(tpSC.GetParticleType(), t 70 : G4ErrorTrajState(tpSC.GetParticleType(), tpSC.GetPosition(),
71 tpSC.GetMomentum()) 71 tpSC.GetMomentum())
72 { 72 {
73 // fParticleType = tpSC.GetParticleType(); 73 // fParticleType = tpSC.GetParticleType();
74 // fPosition = tpSC.GetPosition(); 74 // fPosition = tpSC.GetPosition();
75 // fMomentum = tpSC.GetMomentum(); 75 // fMomentum = tpSC.GetMomentum();
76 fTrajParam = G4ErrorSurfaceTrajParam(fPositi 76 fTrajParam = G4ErrorSurfaceTrajParam(fPosition, fMomentum, plane);
77 Init(); 77 Init();
78 78
79 //----- Get the error matrix in SC coordinat 79 //----- Get the error matrix in SC coordinates
80 BuildErrorMatrix(tpSC, GetVectorV(), GetVect 80 BuildErrorMatrix(tpSC, GetVectorV(), GetVectorW());
81 } 81 }
82 82
83 //-------------------------------------------- 83 //------------------------------------------------------------------------
84 G4ErrorSurfaceTrajState::G4ErrorSurfaceTrajSta 84 G4ErrorSurfaceTrajState::G4ErrorSurfaceTrajState(G4ErrorFreeTrajState& tpSC,
85 85 const G4Vector3D& vecU,
86 86 const G4Vector3D& vecV,
87 87 G4ErrorMatrix& transfM)
88 : G4ErrorTrajState(tpSC.GetParticleType(), t 88 : G4ErrorTrajState(tpSC.GetParticleType(), tpSC.GetPosition(),
89 tpSC.GetMomentum()) 89 tpSC.GetMomentum())
90 { 90 {
91 Init(); // needed to define charge sign 91 Init(); // needed to define charge sign
92 fTrajParam = G4ErrorSurfaceTrajParam(fPositi 92 fTrajParam = G4ErrorSurfaceTrajParam(fPosition, fMomentum, vecU, vecV);
93 //----- Get the error matrix in SC coordinat 93 //----- Get the error matrix in SC coordinates
94 transfM = BuildErrorMatrix(tpSC, vecU, vecV) 94 transfM = BuildErrorMatrix(tpSC, vecU, vecV);
95 } 95 }
96 96
97 //-------------------------------------------- 97 //------------------------------------------------------------------------
98 G4ErrorMatrix G4ErrorSurfaceTrajState::BuildEr 98 G4ErrorMatrix G4ErrorSurfaceTrajState::BuildErrorMatrix(
99 G4ErrorFreeTrajState& tpSC, const G4Vector3D 99 G4ErrorFreeTrajState& tpSC, const G4Vector3D&, const G4Vector3D&)
100 { 100 {
101 G4double sclambda = tpSC.GetParameters().Get 101 G4double sclambda = tpSC.GetParameters().GetLambda();
102 G4double scphi = tpSC.GetParameters().Get 102 G4double scphi = tpSC.GetParameters().GetPhi();
103 if(G4ErrorPropagatorData::GetErrorPropagator 103 if(G4ErrorPropagatorData::GetErrorPropagatorData()->GetMode() ==
104 G4ErrorMode_PropBackwards) 104 G4ErrorMode_PropBackwards)
105 { 105 {
106 sclambda *= -1; 106 sclambda *= -1;
107 scphi += CLHEP::pi; 107 scphi += CLHEP::pi;
108 } 108 }
109 G4double cosLambda = std::cos(sclambda); 109 G4double cosLambda = std::cos(sclambda);
110 G4double sinLambda = std::sin(sclambda); 110 G4double sinLambda = std::sin(sclambda);
111 G4double sinPhi = std::sin(scphi); 111 G4double sinPhi = std::sin(scphi);
112 G4double cosPhi = std::cos(scphi); 112 G4double cosPhi = std::cos(scphi);
113 113
114 #ifdef G4EVERBOSE 114 #ifdef G4EVERBOSE
115 if(iverbose >= 4) 115 if(iverbose >= 4)
116 G4cout << " PM " << fMomentum.mag() << " p 116 G4cout << " PM " << fMomentum.mag() << " pLambda " << sclambda << " pPhi "
117 << scphi << G4endl; 117 << scphi << G4endl;
118 #endif 118 #endif
119 119
120 G4ThreeVector vTN(cosLambda * cosPhi, cosLam 120 G4ThreeVector vTN(cosLambda * cosPhi, cosLambda * sinPhi, sinLambda);
121 G4ThreeVector vUN(-sinPhi, cosPhi, 0.); 121 G4ThreeVector vUN(-sinPhi, cosPhi, 0.);
122 G4ThreeVector vVN(-vTN.z() * vUN.y(), vTN.z( 122 G4ThreeVector vVN(-vTN.z() * vUN.y(), vTN.z() * vUN.x(), cosLambda);
123 123
124 #ifdef G4EVERBOSE 124 #ifdef G4EVERBOSE
125 if(iverbose >= 4) 125 if(iverbose >= 4)
126 G4cout << " SC2SD: vTN " << vTN << " vUN " 126 G4cout << " SC2SD: vTN " << vTN << " vUN " << vUN << " vVN " << vVN
127 << G4endl; 127 << G4endl;
128 #endif 128 #endif
129 G4double UJ = vUN * GetVectorV(); 129 G4double UJ = vUN * GetVectorV();
130 G4double UK = vUN * GetVectorW(); 130 G4double UK = vUN * GetVectorW();
131 G4double VJ = vVN * GetVectorV(); 131 G4double VJ = vVN * GetVectorV();
132 G4double VK = vVN * GetVectorW(); 132 G4double VK = vVN * GetVectorW();
133 133
134 //--- Get transformation first 134 //--- Get transformation first
135 G4ErrorMatrix transfM(5, 5, 0); 135 G4ErrorMatrix transfM(5, 5, 0);
136 //--- Get magnetic field 136 //--- Get magnetic field
137 const G4Field* field = G4TransportationManag 137 const G4Field* field = G4TransportationManager::GetTransportationManager()
138 ->GetFieldManager() 138 ->GetFieldManager()
139 ->GetDetectorField( 139 ->GetDetectorField();
140 140
141 G4Vector3D vectorU = GetVectorV().cross(GetV 141 G4Vector3D vectorU = GetVectorV().cross(GetVectorW());
142 G4double T1R = 1. / (vTN * vectorU); 142 G4double T1R = 1. / (vTN * vectorU);
143 143
144 #ifdef G4EVERBOSE 144 #ifdef G4EVERBOSE
145 if(iverbose >= 4) 145 if(iverbose >= 4)
146 G4cout << "surf vectors:U,V,W " << vectorU 146 G4cout << "surf vectors:U,V,W " << vectorU << " " << GetVectorV() << " "
147 << GetVectorW() << " T1R:" << T1R 147 << GetVectorW() << " T1R:" << T1R << G4endl;
148 #endif 148 #endif
149 149
150 if(fCharge != 0 && field) 150 if(fCharge != 0 && field)
151 { 151 {
152 G4double pos[3]; 152 G4double pos[3];
153 pos[0] = fPosition.x() * cm; 153 pos[0] = fPosition.x() * cm;
154 pos[1] = fPosition.y() * cm; 154 pos[1] = fPosition.y() * cm;
155 pos[2] = fPosition.z() * cm; 155 pos[2] = fPosition.z() * cm;
156 G4double Hd[3]; 156 G4double Hd[3];
157 field->GetFieldValue(pos, Hd); 157 field->GetFieldValue(pos, Hd);
158 G4ThreeVector H = 158 G4ThreeVector H =
159 G4ThreeVector(Hd[0], Hd[1], Hd[2]) / tes 159 G4ThreeVector(Hd[0], Hd[1], Hd[2]) / tesla * 10.; // in kilogauus
160 G4double magH = H.mag(); 160 G4double magH = H.mag();
161 G4double invP = 1. / (fMomentum.mag() / G 161 G4double invP = 1. / (fMomentum.mag() / GeV);
162 G4double magHM = magH * invP; 162 G4double magHM = magH * invP;
163 if(magH != 0.) 163 if(magH != 0.)
164 { 164 {
165 G4double magHM2 = fCharge / magH; 165 G4double magHM2 = fCharge / magH;
166 G4double Q = -magHM * c_light / (km 166 G4double Q = -magHM * c_light / (km / ns);
167 #ifdef G4EVERBOSE 167 #ifdef G4EVERBOSE
168 if(iverbose >= 4) 168 if(iverbose >= 4)
169 G4cout << GeV << " Q " << Q << " magHM 169 G4cout << GeV << " Q " << Q << " magHM " << magHM << " c_light/(km/ns) "
170 << c_light / (km / ns) << G4end 170 << c_light / (km / ns) << G4endl;
171 #endif 171 #endif
172 172
173 G4double sinz = -H * vUN * magHM2; 173 G4double sinz = -H * vUN * magHM2;
174 G4double cosz = H * vVN * magHM2; 174 G4double cosz = H * vVN * magHM2;
175 G4double T3R = Q * std::pow(T1R, 3); 175 G4double T3R = Q * std::pow(T1R, 3);
176 G4double UI = vUN * vectorU; 176 G4double UI = vUN * vectorU;
177 G4double VI = vVN * vectorU; 177 G4double VI = vVN * vectorU;
178 #ifdef G4EVERBOSE 178 #ifdef G4EVERBOSE
179 if(iverbose >= 4) 179 if(iverbose >= 4)
180 { 180 {
181 G4cout << " T1R " << T1R << " T3R " << 181 G4cout << " T1R " << T1R << " T3R " << T3R << G4endl;
182 G4cout << " UI " << UI << " VI " << VI 182 G4cout << " UI " << UI << " VI " << VI << " vectorU " << vectorU
183 << G4endl; 183 << G4endl;
184 G4cout << " UJ " << UJ << " VJ " << VJ 184 G4cout << " UJ " << UJ << " VJ " << VJ << G4endl;
185 G4cout << " UK " << UK << " VK " << VK 185 G4cout << " UK " << UK << " VK " << VK << G4endl;
186 } 186 }
187 #endif 187 #endif
188 188
189 transfM[1][3] = -UI * (VK * cosz - UK * 189 transfM[1][3] = -UI * (VK * cosz - UK * sinz) * T3R;
190 transfM[1][4] = -VI * (VK * cosz - UK * 190 transfM[1][4] = -VI * (VK * cosz - UK * sinz) * T3R;
191 transfM[2][3] = UI * (VJ * cosz - UJ * s 191 transfM[2][3] = UI * (VJ * cosz - UJ * sinz) * T3R;
192 transfM[2][4] = VI * (VJ * cosz - UJ * s 192 transfM[2][4] = VI * (VJ * cosz - UJ * sinz) * T3R;
193 } 193 }
194 } 194 }
195 195
196 G4double T2R = T1R * T1R; 196 G4double T2R = T1R * T1R;
197 transfM[0][0] = 1.; 197 transfM[0][0] = 1.;
198 transfM[1][1] = -UK * T2R; 198 transfM[1][1] = -UK * T2R;
199 transfM[1][2] = VK * cosLambda * T2R; 199 transfM[1][2] = VK * cosLambda * T2R;
200 transfM[2][1] = UJ * T2R; 200 transfM[2][1] = UJ * T2R;
201 transfM[2][2] = -VJ * cosLambda * T2R; 201 transfM[2][2] = -VJ * cosLambda * T2R;
202 transfM[3][3] = VK * T1R; 202 transfM[3][3] = VK * T1R;
203 transfM[3][4] = -UK * T1R; 203 transfM[3][4] = -UK * T1R;
204 transfM[4][3] = -VJ * T1R; 204 transfM[4][3] = -VJ * T1R;
205 transfM[4][4] = UJ * T1R; 205 transfM[4][4] = UJ * T1R;
206 206
207 #ifdef G4EVERBOSE 207 #ifdef G4EVERBOSE
208 if(iverbose >= 4) 208 if(iverbose >= 4)
209 G4cout << " SC2SD transf matrix A= " << tr 209 G4cout << " SC2SD transf matrix A= " << transfM << G4endl;
210 #endif 210 #endif
211 fError = G4ErrorTrajErr(tpSC.GetError().simi 211 fError = G4ErrorTrajErr(tpSC.GetError().similarity(transfM));
212 212
213 #ifdef G4EVERBOSE 213 #ifdef G4EVERBOSE
214 if(iverbose >= 1) 214 if(iverbose >= 1)
215 G4cout << "G4EP: error matrix SC2SD " << f 215 G4cout << "G4EP: error matrix SC2SD " << fError << G4endl;
216 if(iverbose >= 4) 216 if(iverbose >= 4)
217 G4cout << "G4ErrorSurfaceTrajState from SC 217 G4cout << "G4ErrorSurfaceTrajState from SC " << *this << G4endl;
218 #endif 218 #endif
219 219
220 return transfM; // want to use trasnfM for 220 return transfM; // want to use trasnfM for the reverse transform
221 } 221 }
222 222
223 //-------------------------------------------- 223 //------------------------------------------------------------------------
224 void G4ErrorSurfaceTrajState::Init() 224 void G4ErrorSurfaceTrajState::Init()
225 { 225 {
226 theTSType = G4eTS_OS; 226 theTSType = G4eTS_OS;
227 BuildCharge(); 227 BuildCharge();
228 } 228 }
229 229
230 //-------------------------------------------- 230 //------------------------------------------------------------------------
231 void G4ErrorSurfaceTrajState::Dump(std::ostrea 231 void G4ErrorSurfaceTrajState::Dump(std::ostream& out) const { out << *this; }
232 232
233 //-------------------------------------------- 233 //------------------------------------------------------------------------
234 std::ostream& operator<<(std::ostream& out, co 234 std::ostream& operator<<(std::ostream& out, const G4ErrorSurfaceTrajState& ts)
235 { 235 {
236 std::ios::fmtflags oldFlags = out.flags(); 236 std::ios::fmtflags oldFlags = out.flags();
237 out.setf(std::ios::fixed, std::ios::floatfie 237 out.setf(std::ios::fixed, std::ios::floatfield);
238 238
239 ts.DumpPosMomError(out); 239 ts.DumpPosMomError(out);
240 240
241 out << " G4ErrorSurfaceTrajState: Params: " 241 out << " G4ErrorSurfaceTrajState: Params: " << ts.fTrajParam << G4endl;
242 out.flags(oldFlags); 242 out.flags(oldFlags);
243 return out; 243 return out;
244 } 244 }
245 245