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1 // 1 // 2 // ******************************************* 2 // ******************************************************************** 3 // * License and Disclaimer 3 // * License and Disclaimer * 4 // * 4 // * * 5 // * The Geant4 software is copyright of th 5 // * The Geant4 software is copyright of the Copyright Holders of * 6 // * the Geant4 Collaboration. It is provided 6 // * the Geant4 Collaboration. It is provided under the terms and * 7 // * conditions of the Geant4 Software License 7 // * conditions of the Geant4 Software License, included in the file * 8 // * LICENSE and available at http://cern.ch/ 8 // * LICENSE and available at http://cern.ch/geant4/license . These * 9 // * include a list of copyright holders. 9 // * include a list of copyright holders. * 10 // * 10 // * * 11 // * Neither the authors of this software syst 11 // * Neither the authors of this software system, nor their employing * 12 // * institutes,nor the agencies providing fin 12 // * institutes,nor the agencies providing financial support for this * 13 // * work make any representation or warran 13 // * work make any representation or warranty, express or implied, * 14 // * regarding this software system or assum 14 // * regarding this software system or assume any liability for its * 15 // * use. Please see the license in the file 15 // * use. Please see the license in the file LICENSE and URL above * 16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. * 17 // * 17 // * * 18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and * 19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. * 20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or * 21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its * 22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your * 23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. * 24 // ******************************************* 24 // ******************************************************************** 25 // 25 // 26 // G4TwistTubsSide implementation << 27 // 26 // 28 // 01-Aug-2002 - Kotoyo Hoshina (hoshina@hepbu << 27 // $Id: G4TwistTubsSide.cc,v 1.7 2010-07-12 15:25:37 gcosmo Exp $ 29 // 13-Nov-2003 - O.Link (Oliver.Link@cern.ch), << 28 // GEANT4 tag $Name: not supported by cvs2svn $ 30 // from original version in Jupi << 29 // >> 30 // >> 31 // -------------------------------------------------------------------- >> 32 // GEANT 4 class source file >> 33 // >> 34 // >> 35 // G4TwistTubsSide.cc >> 36 // >> 37 // Author: >> 38 // 01-Aug-2002 - Kotoyo Hoshina (hoshina@hepburn.s.chiba-u.ac.jp) >> 39 // >> 40 // History: >> 41 // 13-Nov-2003 - O.Link (Oliver.Link@cern.ch), Integration in Geant4 >> 42 // from original version in Jupiter-2.5.02 application. >> 43 // 29-Apr-2004 - O.Link. Bug fixed in GetAreaCode 31 // ------------------------------------------- 44 // -------------------------------------------------------------------- 32 45 33 #include "G4TwistTubsSide.hh" 46 #include "G4TwistTubsSide.hh" 34 47 35 //============================================ 48 //===================================================================== 36 //* constructors ----------------------------- 49 //* constructors ------------------------------------------------------ 37 50 38 G4TwistTubsSide::G4TwistTubsSide(const G4Strin << 51 G4TwistTubsSide::G4TwistTubsSide(const G4String &name, 39 const G4Rotat << 52 const G4RotationMatrix &rot, 40 const G4Three << 53 const G4ThreeVector &tlate, 41 G4int << 54 G4int handedness, 42 const G4doubl << 55 const G4double kappa, 43 const EAxis << 56 const EAxis axis0, 44 const EAxis << 57 const EAxis axis1, 45 G4doubl << 58 G4double axis0min, 46 G4doubl << 59 G4double axis1min, 47 G4doubl << 60 G4double axis0max, 48 G4doubl << 61 G4double axis1max) 49 : G4VTwistSurface(name, rot, tlate, handedn 62 : G4VTwistSurface(name, rot, tlate, handedness, axis0, axis1, 50 axis0min, axis1min, axis0 << 63 axis0min, axis1min, axis0max, axis1max), 51 fKappa(kappa) 64 fKappa(kappa) 52 { 65 { 53 if (axis0 == kZAxis && axis1 == kXAxis) << 66 if (axis0 == kZAxis && axis1 == kXAxis) { 54 { << 55 G4Exception("G4TwistTubsSide::G4TwistTub 67 G4Exception("G4TwistTubsSide::G4TwistTubsSide()", "GeomSolids0002", 56 FatalErrorInArgument, "Shoul 68 FatalErrorInArgument, "Should swap axis0 and axis1!"); 57 } 69 } 58 fIsValidNorm = false; 70 fIsValidNorm = false; 59 SetCorners(); 71 SetCorners(); 60 SetBoundaries(); 72 SetBoundaries(); 61 } 73 } 62 74 63 G4TwistTubsSide::G4TwistTubsSide(const G4Strin << 75 G4TwistTubsSide::G4TwistTubsSide(const G4String &name, 64 G4doubl << 76 G4double EndInnerRadius[2], 65 G4doubl << 77 G4double EndOuterRadius[2], 66 G4doubl << 78 G4double DPhi, 67 G4doubl << 79 G4double EndPhi[2], 68 G4doubl << 80 G4double EndZ[2], 69 G4doubl << 81 G4double InnerRadius, 70 G4doubl << 82 G4double OuterRadius, 71 G4doubl << 83 G4double Kappa, 72 G4int << 84 G4int handedness) 73 : G4VTwistSurface(name) 85 : G4VTwistSurface(name) 74 { 86 { 75 fHandedness = handedness; // +z = +ve, -z 87 fHandedness = handedness; // +z = +ve, -z = -ve 76 fAxis[0] = kXAxis; // in local coordinat 88 fAxis[0] = kXAxis; // in local coordinate system 77 fAxis[1] = kZAxis; 89 fAxis[1] = kZAxis; 78 fAxisMin[0] = InnerRadius; // Inner-hype r 90 fAxisMin[0] = InnerRadius; // Inner-hype radius at z=0 79 fAxisMax[0] = OuterRadius; // Outer-hype r 91 fAxisMax[0] = OuterRadius; // Outer-hype radius at z=0 80 fAxisMin[1] = EndZ[0]; 92 fAxisMin[1] = EndZ[0]; 81 fAxisMax[1] = EndZ[1]; 93 fAxisMax[1] = EndZ[1]; 82 94 83 fKappa = Kappa; 95 fKappa = Kappa; 84 fRot.rotateZ( fHandedness > 0 96 fRot.rotateZ( fHandedness > 0 85 ? -0.5*DPhi 97 ? -0.5*DPhi 86 : 0.5*DPhi ); 98 : 0.5*DPhi ); 87 fTrans.set(0, 0, 0); 99 fTrans.set(0, 0, 0); 88 fIsValidNorm = false; 100 fIsValidNorm = false; 89 101 90 SetCorners( EndInnerRadius, EndOuterRadius, 102 SetCorners( EndInnerRadius, EndOuterRadius, EndPhi, EndZ) ; 91 SetBoundaries(); 103 SetBoundaries(); 92 } 104 } 93 105 >> 106 94 //============================================ 107 //===================================================================== 95 //* Fake default constructor ----------------- 108 //* Fake default constructor ------------------------------------------ 96 109 97 G4TwistTubsSide::G4TwistTubsSide( __void__& a 110 G4TwistTubsSide::G4TwistTubsSide( __void__& a ) 98 : G4VTwistSurface(a) << 111 : G4VTwistSurface(a), fKappa(0.) 99 { 112 { 100 } 113 } 101 114 102 115 103 //============================================ 116 //===================================================================== 104 //* destructor ------------------------------- 117 //* destructor -------------------------------------------------------- 105 118 106 G4TwistTubsSide::~G4TwistTubsSide() = default; << 119 G4TwistTubsSide::~G4TwistTubsSide() >> 120 { >> 121 } 107 122 108 //============================================ 123 //===================================================================== 109 //* GetNormal -------------------------------- 124 //* GetNormal --------------------------------------------------------- 110 125 111 G4ThreeVector G4TwistTubsSide::GetNormal(const << 126 G4ThreeVector G4TwistTubsSide::GetNormal(const G4ThreeVector &tmpxx, 112 127 G4bool isGlobal) 113 { 128 { 114 // GetNormal returns a normal vector at a s 129 // GetNormal returns a normal vector at a surface (or very close 115 // to surface) point at tmpxx. 130 // to surface) point at tmpxx. 116 // If isGlobal=true, it returns the normal 131 // If isGlobal=true, it returns the normal in global coordinate. 117 // 132 // 118 G4ThreeVector xx; 133 G4ThreeVector xx; 119 if (isGlobal) << 134 if (isGlobal) { 120 { << 121 xx = ComputeLocalPoint(tmpxx); 135 xx = ComputeLocalPoint(tmpxx); 122 if ((xx - fCurrentNormal.p).mag() < 0.5 << 136 if ((xx - fCurrentNormal.p).mag() < 0.5 * kCarTolerance) { 123 { << 124 return ComputeGlobalDirection(fCurren 137 return ComputeGlobalDirection(fCurrentNormal.normal); 125 } 138 } 126 } << 139 } else { 127 else << 128 { << 129 xx = tmpxx; 140 xx = tmpxx; 130 if (xx == fCurrentNormal.p) << 141 if (xx == fCurrentNormal.p) { 131 { << 132 return fCurrentNormal.normal; 142 return fCurrentNormal.normal; 133 } 143 } 134 } 144 } 135 145 136 G4ThreeVector er(1, fKappa * xx.z(), 0); 146 G4ThreeVector er(1, fKappa * xx.z(), 0); 137 G4ThreeVector ez(0, fKappa * xx.x(), 1); 147 G4ThreeVector ez(0, fKappa * xx.x(), 1); 138 G4ThreeVector normal = fHandedness*(er.cros 148 G4ThreeVector normal = fHandedness*(er.cross(ez)); 139 149 140 if (isGlobal) << 150 if (isGlobal) { 141 { << 142 fCurrentNormal.normal = ComputeGlobalDir 151 fCurrentNormal.normal = ComputeGlobalDirection(normal.unit()); 143 } << 152 } else { 144 else << 145 { << 146 fCurrentNormal.normal = normal.unit(); 153 fCurrentNormal.normal = normal.unit(); 147 } 154 } 148 return fCurrentNormal.normal; 155 return fCurrentNormal.normal; 149 } 156 } 150 157 151 //============================================ 158 //===================================================================== 152 //* DistanceToSurface ------------------------ 159 //* DistanceToSurface ------------------------------------------------- 153 160 154 G4int G4TwistTubsSide::DistanceToSurface(const << 161 G4int G4TwistTubsSide::DistanceToSurface(const G4ThreeVector &gp, 155 const << 162 const G4ThreeVector &gv, 156 << 163 G4ThreeVector gxx[], 157 << 164 G4double distance[], 158 << 165 G4int areacode[], 159 << 166 G4bool isvalid[], 160 << 167 EValidate validate) 161 { 168 { 162 // Coordinate system: 169 // Coordinate system: 163 // 170 // 164 // The coordinate system is so chosen th 171 // The coordinate system is so chosen that the intersection of 165 // the twisted surface with the z=0 plan 172 // the twisted surface with the z=0 plane coincides with the 166 // x-axis. 173 // x-axis. 167 // Rotation matrix from this coordinate 174 // Rotation matrix from this coordinate system (local system) 168 // to global system is saved in fRot fie 175 // to global system is saved in fRot field. 169 // So the (global) particle position and 176 // So the (global) particle position and (global) velocity vectors, 170 // p and v, should be rotated fRot.inver 177 // p and v, should be rotated fRot.inverse() in order to convert 171 // to local vectors. 178 // to local vectors. 172 // 179 // 173 // Equation of a twisted surface: 180 // Equation of a twisted surface: 174 // 181 // 175 // x(rho(z=0), z) = rho(z=0) 182 // x(rho(z=0), z) = rho(z=0) 176 // y(rho(z=0), z) = rho(z=0)*K*z 183 // y(rho(z=0), z) = rho(z=0)*K*z 177 // z(rho(z=0), z) = z 184 // z(rho(z=0), z) = z 178 // with 185 // with 179 // K = std::tan(fPhiTwist/2)/fZHalfLe 186 // K = std::tan(fPhiTwist/2)/fZHalfLen 180 // 187 // 181 // Equation of a line: 188 // Equation of a line: 182 // 189 // 183 // gxx = p + t*v 190 // gxx = p + t*v 184 // with 191 // with 185 // p = fRot.inverse()*gp 192 // p = fRot.inverse()*gp 186 // v = fRot.inverse()*gv 193 // v = fRot.inverse()*gv 187 // 194 // 188 // Solution for intersection: 195 // Solution for intersection: 189 // 196 // 190 // Required time for crossing is given b 197 // Required time for crossing is given by solving the 191 // following quadratic equation: 198 // following quadratic equation: 192 // 199 // 193 // a*t^2 + b*t + c = 0 200 // a*t^2 + b*t + c = 0 194 // 201 // 195 // where 202 // where 196 // 203 // 197 // a = K*v_x*v_z 204 // a = K*v_x*v_z 198 // b = K*(v_x*p_z + v_z*p_x) - v_y 205 // b = K*(v_x*p_z + v_z*p_x) - v_y 199 // c = K*p_x*p_z - p_y 206 // c = K*p_x*p_z - p_y 200 // 207 // 201 // Out of the possible two solutions you 208 // Out of the possible two solutions you must choose 202 // the one that gives a positive rho(z=0 209 // the one that gives a positive rho(z=0). 203 // 210 // 204 // 211 // 205 212 206 fCurStatWithV.ResetfDone(validate, &gp, &gv 213 fCurStatWithV.ResetfDone(validate, &gp, &gv); 207 214 208 if (fCurStatWithV.IsDone()) << 215 if (fCurStatWithV.IsDone()) { 209 { << 216 G4int i; 210 for (G4int i=0; i<fCurStatWithV.GetNXX() << 217 for (i=0; i<fCurStatWithV.GetNXX(); i++) { 211 { << 212 gxx[i] = fCurStatWithV.GetXX(i); 218 gxx[i] = fCurStatWithV.GetXX(i); 213 distance[i] = fCurStatWithV.GetDistan 219 distance[i] = fCurStatWithV.GetDistance(i); 214 areacode[i] = fCurStatWithV.GetAreaco 220 areacode[i] = fCurStatWithV.GetAreacode(i); 215 isvalid[i] = fCurStatWithV.IsValid(i 221 isvalid[i] = fCurStatWithV.IsValid(i); 216 } 222 } 217 return fCurStatWithV.GetNXX(); 223 return fCurStatWithV.GetNXX(); 218 } << 224 } else { 219 else // initialize << 225 // initialize 220 { << 226 G4int i; 221 for (auto i=0; i<2; ++i) << 227 for (i=0; i<2; i++) { 222 { << 223 distance[i] = kInfinity; 228 distance[i] = kInfinity; 224 areacode[i] = sOutside; 229 areacode[i] = sOutside; 225 isvalid[i] = false; 230 isvalid[i] = false; 226 gxx[i].set(kInfinity, kInfinity, kInf 231 gxx[i].set(kInfinity, kInfinity, kInfinity); 227 } 232 } 228 } 233 } 229 234 230 G4ThreeVector p = ComputeLocalPoint(gp); 235 G4ThreeVector p = ComputeLocalPoint(gp); 231 G4ThreeVector v = ComputeLocalDirection(gv) 236 G4ThreeVector v = ComputeLocalDirection(gv); 232 G4ThreeVector xx[2]; 237 G4ThreeVector xx[2]; 233 238 >> 239 234 // 240 // 235 // special case! 241 // special case! 236 // p is origin or 242 // p is origin or 237 // 243 // 238 244 239 G4double absvz = std::fabs(v.z()); 245 G4double absvz = std::fabs(v.z()); 240 246 241 if ((absvz<DBL_MIN) && (std::fabs(p.x() * v << 247 if ((absvz < DBL_MIN) && (std::fabs(p.x() * v.y() - p.y() * v.x()) < DBL_MIN)) { 242 { << 243 // no intersection 248 // no intersection 244 249 245 isvalid[0] = false; 250 isvalid[0] = false; 246 fCurStat.SetCurrentStatus(0, gxx[0], dis 251 fCurStat.SetCurrentStatus(0, gxx[0], distance[0], areacode[0], 247 isvalid[0], 0, 252 isvalid[0], 0, validate, &gp, &gv); 248 return 0; 253 return 0; 249 } 254 } 250 255 251 // 256 // 252 // special case end 257 // special case end 253 // 258 // 254 259 >> 260 255 G4double a = fKappa * v.x() * v.z(); 261 G4double a = fKappa * v.x() * v.z(); 256 G4double b = fKappa * (v.x() * p.z() + v.z( 262 G4double b = fKappa * (v.x() * p.z() + v.z() * p.x()) - v.y(); 257 G4double c = fKappa * p.x() * p.z() - p.y() 263 G4double c = fKappa * p.x() * p.z() - p.y(); 258 G4double D = b * b - 4 * a * c; 264 G4double D = b * b - 4 * a * c; // discriminant 259 G4int vout = 0; 265 G4int vout = 0; 260 266 261 if (std::fabs(a) < DBL_MIN) << 267 if (std::fabs(a) < DBL_MIN) { 262 { << 268 if (std::fabs(b) > DBL_MIN) { 263 if (std::fabs(b) > DBL_MIN) << 269 264 { << 265 // single solution 270 // single solution 266 271 267 distance[0] = - c / b; 272 distance[0] = - c / b; 268 xx[0] = p + distance[0]*v; 273 xx[0] = p + distance[0]*v; 269 gxx[0] = ComputeGlobalPoint(xx[0 274 gxx[0] = ComputeGlobalPoint(xx[0]); 270 275 271 if (validate == kValidateWithTol) << 276 if (validate == kValidateWithTol) { 272 { << 273 areacode[0] = GetAreaCode(xx[0]); 277 areacode[0] = GetAreaCode(xx[0]); 274 if (!IsOutside(areacode[0])) << 278 if (!IsOutside(areacode[0])) { 275 { << 276 if (distance[0] >= 0) isvalid[0 279 if (distance[0] >= 0) isvalid[0] = true; 277 } 280 } 278 } << 281 } else if (validate == kValidateWithoutTol) { 279 else if (validate == kValidateWithout << 280 { << 281 areacode[0] = GetAreaCode(xx[0], f 282 areacode[0] = GetAreaCode(xx[0], false); 282 if (IsInside(areacode[0])) << 283 if (IsInside(areacode[0])) { 283 { << 284 if (distance[0] >= 0) isvalid[0 284 if (distance[0] >= 0) isvalid[0] = true; 285 } 285 } 286 } << 286 } else { // kDontValidate 287 else // kDontValidate << 288 { << 289 // we must omit x(rho,z) = rho(z=0 287 // we must omit x(rho,z) = rho(z=0) < 0 290 if (xx[0].x() > 0) << 288 if (xx[0].x() > 0) { 291 { << 292 areacode[0] = sInside; 289 areacode[0] = sInside; 293 if (distance[0] >= 0) isvalid[0 290 if (distance[0] >= 0) isvalid[0] = true; 294 } << 291 } else { 295 else << 296 { << 297 distance[0] = kInfinity; 292 distance[0] = kInfinity; 298 fCurStatWithV.SetCurrentStatus( 293 fCurStatWithV.SetCurrentStatus(0, gxx[0], distance[0], 299 294 areacode[0], isvalid[0], 300 295 0, validate, &gp, &gv); 301 return vout; 296 return vout; 302 } 297 } 303 } 298 } 304 299 305 fCurStatWithV.SetCurrentStatus(0, gxx 300 fCurStatWithV.SetCurrentStatus(0, gxx[0], distance[0], areacode[0], 306 isvali 301 isvalid[0], 1, validate, &gp, &gv); 307 vout = 1; 302 vout = 1; 308 } << 303 309 else << 304 } else { 310 { << 311 // if a=b=0 , v.y=0 and (v.x=0 && p.x 305 // if a=b=0 , v.y=0 and (v.x=0 && p.x=0) or (v.z=0 && p.z=0) . 312 // if v.x=0 && p.x=0, no intersect 306 // if v.x=0 && p.x=0, no intersection unless p is on z-axis 313 // (in that case, v is paralell to 307 // (in that case, v is paralell to surface). 314 // if v.z=0 && p.z=0, no intersect 308 // if v.z=0 && p.z=0, no intersection unless p is on x-axis 315 // (in that case, v is paralell to 309 // (in that case, v is paralell to surface). 316 // return distance = infinity. 310 // return distance = infinity. 317 311 318 fCurStatWithV.SetCurrentStatus(0, gxx 312 fCurStatWithV.SetCurrentStatus(0, gxx[0], distance[0], areacode[0], 319 isvali 313 isvalid[0], 0, validate, &gp, &gv); 320 } 314 } 321 } << 315 322 else if (D > DBL_MIN) << 316 } else if (D > DBL_MIN) { 323 { << 317 324 // double solutions 318 // double solutions 325 319 326 D = std::sqrt(D); 320 D = std::sqrt(D); 327 G4double factor = 0.5/a; 321 G4double factor = 0.5/a; 328 G4double tmpdist[2] = {kInfinity, k 322 G4double tmpdist[2] = {kInfinity, kInfinity}; 329 G4ThreeVector tmpxx[2]; 323 G4ThreeVector tmpxx[2]; 330 G4int tmpareacode[2] = {sOutside 324 G4int tmpareacode[2] = {sOutside, sOutside}; 331 G4bool tmpisvalid[2] = {false, f 325 G4bool tmpisvalid[2] = {false, false}; >> 326 G4int i; 332 327 333 for (auto i=0; i<2; ++i) << 328 for (i=0; i<2; i++) { 334 { << 335 G4double bminusD = - b - D; 329 G4double bminusD = - b - D; 336 330 337 // protection against round off error 331 // protection against round off error 338 //G4double protection = 1.0e-6; 332 //G4double protection = 1.0e-6; 339 G4double protection = 0; 333 G4double protection = 0; 340 if ( b * D < 0 && std::fabs(bminusD / << 334 if ( b * D < 0 && std::fabs(bminusD / D) < protection ) { 341 { << 342 G4double acovbb = (a*c)/(b*b); 335 G4double acovbb = (a*c)/(b*b); 343 tmpdist[i] = - c/b * ( 1 - acovbb 336 tmpdist[i] = - c/b * ( 1 - acovbb * (1 + 2*acovbb)); 344 } << 337 } else { 345 else << 346 { << 347 tmpdist[i] = factor * bminusD; 338 tmpdist[i] = factor * bminusD; 348 } 339 } 349 340 350 D = -D; 341 D = -D; 351 tmpxx[i] = p + tmpdist[i]*v; 342 tmpxx[i] = p + tmpdist[i]*v; 352 343 353 if (validate == kValidateWithTol) << 344 if (validate == kValidateWithTol) { 354 { << 355 tmpareacode[i] = GetAreaCode(tmpxx 345 tmpareacode[i] = GetAreaCode(tmpxx[i]); 356 if (!IsOutside(tmpareacode[i])) << 346 if (!IsOutside(tmpareacode[i])) { 357 { << 358 if (tmpdist[i] >= 0) tmpisvalid 347 if (tmpdist[i] >= 0) tmpisvalid[i] = true; 359 continue; 348 continue; 360 } 349 } 361 } << 350 } else if (validate == kValidateWithoutTol) { 362 else if (validate == kValidateWithout << 363 { << 364 tmpareacode[i] = GetAreaCode(tmpxx 351 tmpareacode[i] = GetAreaCode(tmpxx[i], false); 365 if (IsInside(tmpareacode[i])) << 352 if (IsInside(tmpareacode[i])) { 366 { << 367 if (tmpdist[i] >= 0) tmpisvalid 353 if (tmpdist[i] >= 0) tmpisvalid[i] = true; 368 continue; 354 continue; 369 } 355 } 370 } << 356 } else { // kDontValidate 371 else // kDontValidate << 372 { << 373 // we must choose x(rho,z) = rho(z 357 // we must choose x(rho,z) = rho(z=0) > 0 374 if (tmpxx[i].x() > 0) << 358 if (tmpxx[i].x() > 0) { 375 { << 376 tmpareacode[i] = sInside; 359 tmpareacode[i] = sInside; 377 if (tmpdist[i] >= 0) tmpisvalid 360 if (tmpdist[i] >= 0) tmpisvalid[i] = true; 378 continue; 361 continue; 379 } else { 362 } else { 380 tmpdist[i] = kInfinity; 363 tmpdist[i] = kInfinity; 381 continue; 364 continue; 382 } 365 } 383 } 366 } 384 } 367 } 385 368 386 if (tmpdist[0] <= tmpdist[1]) << 369 if (tmpdist[0] <= tmpdist[1]) { 387 { << 388 distance[0] = tmpdist[0]; 370 distance[0] = tmpdist[0]; 389 distance[1] = tmpdist[1]; 371 distance[1] = tmpdist[1]; 390 xx[0] = tmpxx[0]; 372 xx[0] = tmpxx[0]; 391 xx[1] = tmpxx[1]; 373 xx[1] = tmpxx[1]; 392 gxx[0] = ComputeGlobalPoint(tmpx 374 gxx[0] = ComputeGlobalPoint(tmpxx[0]); 393 gxx[1] = ComputeGlobalPoint(tmpx 375 gxx[1] = ComputeGlobalPoint(tmpxx[1]); 394 areacode[0] = tmpareacode[0]; 376 areacode[0] = tmpareacode[0]; 395 areacode[1] = tmpareacode[1]; 377 areacode[1] = tmpareacode[1]; 396 isvalid[0] = tmpisvalid[0]; 378 isvalid[0] = tmpisvalid[0]; 397 isvalid[1] = tmpisvalid[1]; 379 isvalid[1] = tmpisvalid[1]; 398 } << 380 } else { 399 else << 400 { << 401 distance[0] = tmpdist[1]; 381 distance[0] = tmpdist[1]; 402 distance[1] = tmpdist[0]; 382 distance[1] = tmpdist[0]; 403 xx[0] = tmpxx[1]; 383 xx[0] = tmpxx[1]; 404 xx[1] = tmpxx[0]; 384 xx[1] = tmpxx[0]; 405 gxx[0] = ComputeGlobalPoint(tmpx 385 gxx[0] = ComputeGlobalPoint(tmpxx[1]); 406 gxx[1] = ComputeGlobalPoint(tmpx 386 gxx[1] = ComputeGlobalPoint(tmpxx[0]); 407 areacode[0] = tmpareacode[1]; 387 areacode[0] = tmpareacode[1]; 408 areacode[1] = tmpareacode[0]; 388 areacode[1] = tmpareacode[0]; 409 isvalid[0] = tmpisvalid[1]; 389 isvalid[0] = tmpisvalid[1]; 410 isvalid[1] = tmpisvalid[0]; 390 isvalid[1] = tmpisvalid[0]; 411 } 391 } 412 392 413 fCurStatWithV.SetCurrentStatus(0, gxx[0] 393 fCurStatWithV.SetCurrentStatus(0, gxx[0], distance[0], areacode[0], 414 isvalid[0 394 isvalid[0], 2, validate, &gp, &gv); 415 fCurStatWithV.SetCurrentStatus(1, gxx[1] 395 fCurStatWithV.SetCurrentStatus(1, gxx[1], distance[1], areacode[1], 416 isvalid[1 396 isvalid[1], 2, validate, &gp, &gv); 417 397 418 // protection against roundoff error 398 // protection against roundoff error 419 399 420 for (G4int k=0; k<2; ++k) << 400 for (G4int k=0; k<2; k++) { 421 { << 422 if (!isvalid[k]) continue; 401 if (!isvalid[k]) continue; 423 402 424 G4ThreeVector xxonsurface(xx[k].x(), 403 G4ThreeVector xxonsurface(xx[k].x(), fKappa * std::fabs(xx[k].x()) 425 404 * xx[k].z() , xx[k].z()); 426 G4double deltaY = (xx[k] - xxo 405 G4double deltaY = (xx[k] - xxonsurface).mag(); 427 406 428 if ( deltaY > 0.5*kCarTolerance ) << 407 if ( deltaY > 0.5*kCarTolerance ) { 429 { << 408 430 G4int maxcount = 10; 409 G4int maxcount = 10; 431 G4int l; 410 G4int l; 432 G4double lastdeltaY = deltaY; << 411 G4double lastdeltaY = deltaY; 433 for (l=0; l<maxcount; ++l) << 412 for (l=0; l<maxcount; l++) { 434 { << 435 G4ThreeVector surfacenormal = Get 413 G4ThreeVector surfacenormal = GetNormal(xxonsurface); 436 distance[k] = DistanceToPlaneWith 414 distance[k] = DistanceToPlaneWithV(p, v, xxonsurface, 437 415 surfacenormal, xx[k]); 438 deltaY = (xx[k] - xxonsurfac 416 deltaY = (xx[k] - xxonsurface).mag(); 439 if (deltaY > lastdeltaY) { } // << 417 if (deltaY > lastdeltaY) { >> 418 >> 419 } 440 gxx[k] = ComputeGlobalPoint( 420 gxx[k] = ComputeGlobalPoint(xx[k]); 441 421 442 if (deltaY <= 0.5*kCarTolerance) << 422 if (deltaY <= 0.5*kCarTolerance) { 443 xxonsurface.set(xx[k].x(), << 423 444 fKappa * std::fab << 424 break; 445 xx[k].z()); << 425 } 446 } << 426 xxonsurface.set(xx[k].x(), 447 if (l == maxcount) << 427 fKappa * std::fabs(xx[k].x()) * xx[k].z(), 448 { << 428 xx[k].z()); 449 std::ostringstream message; << 429 } 450 message << "Exceeded maxloop coun << 430 if (l == maxcount) { 451 << " maxloop count << 431 std::ostringstream message; 452 G4Exception("G4TwistTubsFlatSide: << 432 message << "Exceeded maxloop count!" << G4endl 453 "GeomSolids0003", Fa << 433 << " maxloop count " << maxcount; 454 } << 434 G4Exception("G4TwistTubsFlatSide::DistanceToSurface(p,v)", >> 435 "GeomSolids0003", FatalException, message); >> 436 } 455 } 437 } >> 438 456 } 439 } 457 vout = 2; 440 vout = 2; 458 } << 441 } else { 459 else << 460 { << 461 // if D<0, no solution 442 // if D<0, no solution 462 // if D=0, just grazing the surfaces, re 443 // if D=0, just grazing the surfaces, return kInfinity 463 444 464 fCurStatWithV.SetCurrentStatus(0, gxx[0] 445 fCurStatWithV.SetCurrentStatus(0, gxx[0], distance[0], areacode[0], 465 isvalid[0 446 isvalid[0], 0, validate, &gp, &gv); 466 } 447 } 467 448 468 return vout; 449 return vout; 469 } 450 } 470 451 471 //============================================ 452 //===================================================================== 472 //* DistanceToSurface ------------------------ 453 //* DistanceToSurface ------------------------------------------------- 473 454 474 G4int G4TwistTubsSide::DistanceToSurface(const << 455 G4int G4TwistTubsSide::DistanceToSurface(const G4ThreeVector &gp, 475 << 456 G4ThreeVector gxx[], 476 << 457 G4double distance[], 477 << 458 G4int areacode[]) 478 { 459 { 479 fCurStat.ResetfDone(kDontValidate, &gp); 460 fCurStat.ResetfDone(kDontValidate, &gp); 480 if (fCurStat.IsDone()) << 461 G4int i = 0; 481 { << 462 if (fCurStat.IsDone()) { 482 for (G4int i=0; i<fCurStat.GetNXX(); ++i << 463 for (i=0; i<fCurStat.GetNXX(); i++) { 483 { << 484 gxx[i] = fCurStat.GetXX(i); 464 gxx[i] = fCurStat.GetXX(i); 485 distance[i] = fCurStat.GetDistance(i) 465 distance[i] = fCurStat.GetDistance(i); 486 areacode[i] = fCurStat.GetAreacode(i) 466 areacode[i] = fCurStat.GetAreacode(i); 487 } 467 } 488 return fCurStat.GetNXX(); 468 return fCurStat.GetNXX(); 489 } << 469 } else { 490 else // initialize << 470 // initialize 491 { << 471 for (i=0; i<2; i++) { 492 for (auto i=0; i<2; ++i) << 493 { << 494 distance[i] = kInfinity; 472 distance[i] = kInfinity; 495 areacode[i] = sOutside; 473 areacode[i] = sOutside; 496 gxx[i].set(kInfinity, kInfinity, kInf 474 gxx[i].set(kInfinity, kInfinity, kInfinity); 497 } 475 } 498 } 476 } 499 477 500 const G4double halftol = 0.5 * kCarToleranc << 478 static const G4double halftol = 0.5 * kCarTolerance; 501 479 502 G4ThreeVector p = ComputeLocalPoint( 480 G4ThreeVector p = ComputeLocalPoint(gp); 503 G4ThreeVector xx; 481 G4ThreeVector xx; 504 G4int parity = (fKappa >= 0 ? 1 : 482 G4int parity = (fKappa >= 0 ? 1 : -1); 505 483 506 // 484 // 507 // special case! 485 // special case! 508 // If p is on surface, or 486 // If p is on surface, or 509 // p is on z-axis, 487 // p is on z-axis, 510 // return here immediatery. 488 // return here immediatery. 511 // 489 // 512 490 513 G4ThreeVector lastgxx[2]; 491 G4ThreeVector lastgxx[2]; 514 for (auto i=0; i<2; ++i) << 492 for (i=0; i<2; i++) { 515 { << 516 lastgxx[i] = fCurStatWithV.GetXX(i); 493 lastgxx[i] = fCurStatWithV.GetXX(i); 517 } 494 } 518 495 519 if ((gp - lastgxx[0]).mag() < halftol 496 if ((gp - lastgxx[0]).mag() < halftol 520 || (gp - lastgxx[1]).mag() < halftol) << 497 || (gp - lastgxx[1]).mag() < halftol) { 521 { << 522 // last winner, or last poststep point i 498 // last winner, or last poststep point is on the surface. 523 xx = p; 499 xx = p; 524 distance[0] = 0; 500 distance[0] = 0; 525 gxx[0] = gp; 501 gxx[0] = gp; 526 502 527 G4bool isvalid = true; 503 G4bool isvalid = true; 528 fCurStat.SetCurrentStatus(0, gxx[0], dis 504 fCurStat.SetCurrentStatus(0, gxx[0], distance[0], areacode[0], 529 isvalid, 1, kDont 505 isvalid, 1, kDontValidate, &gp); 530 return 1; 506 return 1; 531 } 507 } 532 508 533 if (p.getRho() == 0) << 509 if (p.getRho() == 0) { 534 { << 535 // p is on z-axis. Namely, p is on twist 510 // p is on z-axis. Namely, p is on twisted surface (invalid area). 536 // We must return here, however, returni 511 // We must return here, however, returning distance to x-minimum 537 // boundary is better than return 0-dist 512 // boundary is better than return 0-distance. 538 // 513 // 539 G4bool isvalid = true; 514 G4bool isvalid = true; 540 if (fAxis[0] == kXAxis && fAxis[1] == kZ << 515 if (fAxis[0] == kXAxis && fAxis[1] == kZAxis) { 541 { << 542 distance[0] = DistanceToBoundary(sAxi 516 distance[0] = DistanceToBoundary(sAxis0 & sAxisMin, xx, p); 543 areacode[0] = sInside; 517 areacode[0] = sInside; 544 } << 518 } else { 545 else << 546 { << 547 distance[0] = 0; 519 distance[0] = 0; 548 xx.set(0., 0., 0.); 520 xx.set(0., 0., 0.); 549 } 521 } 550 gxx[0] = ComputeGlobalPoint(xx); 522 gxx[0] = ComputeGlobalPoint(xx); 551 fCurStat.SetCurrentStatus(0, gxx[0], dis 523 fCurStat.SetCurrentStatus(0, gxx[0], distance[0], areacode[0], 552 isvalid, 0, kD 524 isvalid, 0, kDontValidate, &gp); 553 return 1; 525 return 1; 554 } 526 } 555 527 556 // 528 // 557 // special case end 529 // special case end 558 // 530 // 559 531 560 // set corner points of quadrangle try area 532 // set corner points of quadrangle try area ... 561 533 562 G4ThreeVector A; // foot of normal from p 534 G4ThreeVector A; // foot of normal from p to boundary of sAxis0 & sAxisMin 563 G4ThreeVector C; // foot of normal from p 535 G4ThreeVector C; // foot of normal from p to boundary of sAxis0 & sAxisMax 564 G4ThreeVector B; // point on boundary 536 G4ThreeVector B; // point on boundary sAxis0 & sAxisMax at z = A.z() 565 G4ThreeVector D; // point on boundary 537 G4ThreeVector D; // point on boundary sAxis0 & sAxisMin at z = C.z() 566 538 567 // G4double distToA; // distance from 539 // G4double distToA; // distance from p to A 568 DistanceToBoundary(sAxis0 & sAxisMin, A, p) 540 DistanceToBoundary(sAxis0 & sAxisMin, A, p); 569 // G4double distToC; // distance from 541 // G4double distToC; // distance from p to C 570 DistanceToBoundary(sAxis0 & sAxisMax, C, p) 542 DistanceToBoundary(sAxis0 & sAxisMax, C, p); 571 543 572 // is p.z between a.z and c.z? 544 // is p.z between a.z and c.z? 573 // p.z must be bracketed a.z and c.z. 545 // p.z must be bracketed a.z and c.z. 574 if (A.z() > C.z()) << 546 if (A.z() > C.z()) { 575 { << 547 if (p.z() > A.z()) { 576 if (p.z() > A.z()) << 577 { << 578 A = GetBoundaryAtPZ(sAxis0 & sAxisMin 548 A = GetBoundaryAtPZ(sAxis0 & sAxisMin, p); 579 } << 549 } else if (p.z() < C.z()) { 580 else if (p.z() < C.z()) << 581 { << 582 C = GetBoundaryAtPZ(sAxis0 & sAxisMax 550 C = GetBoundaryAtPZ(sAxis0 & sAxisMax, p); 583 } 551 } 584 } << 552 } else { 585 else << 553 if (p.z() > C.z()) { 586 { << 587 if (p.z() > C.z()) << 588 { << 589 C = GetBoundaryAtPZ(sAxis0 & sAxisMax 554 C = GetBoundaryAtPZ(sAxis0 & sAxisMax, p); 590 } << 555 } else if (p.z() < A.z()) { 591 else if (p.z() < A.z()) << 592 { << 593 A = GetBoundaryAtPZ(sAxis0 & sAxisMin 556 A = GetBoundaryAtPZ(sAxis0 & sAxisMin, p); 594 } 557 } 595 } 558 } 596 559 597 G4ThreeVector d[2]; // direction vecto 560 G4ThreeVector d[2]; // direction vectors of boundary 598 G4ThreeVector x0[2]; // foot of normal 561 G4ThreeVector x0[2]; // foot of normal from line to p 599 G4int btype[2]; // boundary type 562 G4int btype[2]; // boundary type 600 563 601 for (auto i=0; i<2; ++i) << 564 for (i=0; i<2; i++) { 602 { << 565 if (i == 0) { 603 if (i == 0) << 604 { << 605 GetBoundaryParameters((sAxis0 & sAxis 566 GetBoundaryParameters((sAxis0 & sAxisMax), d[i], x0[i], btype[i]); 606 B = x0[i] + ((A.z() - x0[i].z()) / d[ 567 B = x0[i] + ((A.z() - x0[i].z()) / d[i].z()) * d[i]; 607 // x0 + t*d , d is direction unit vec 568 // x0 + t*d , d is direction unit vector. 608 } << 569 } else { 609 else << 610 { << 611 GetBoundaryParameters((sAxis0 & sAxis 570 GetBoundaryParameters((sAxis0 & sAxisMin), d[i], x0[i], btype[i]); 612 D = x0[i] + ((C.z() - x0[i].z()) / d[ 571 D = x0[i] + ((C.z() - x0[i].z()) / d[i].z()) * d[i]; 613 } 572 } 614 } 573 } 615 574 616 // In order to set correct diagonal, swap A 575 // In order to set correct diagonal, swap A and D, C and B if needed. 617 G4ThreeVector pt(p.x(), p.y(), 0.); 576 G4ThreeVector pt(p.x(), p.y(), 0.); 618 G4double rc = std::fabs(p.x()); 577 G4double rc = std::fabs(p.x()); 619 G4ThreeVector surfacevector(rc, rc * fKappa 578 G4ThreeVector surfacevector(rc, rc * fKappa * p.z(), 0.); 620 G4int pside = AmIOnLeftSide(pt, sur 579 G4int pside = AmIOnLeftSide(pt, surfacevector); 621 G4double test = (A.z() - C.z()) * par 580 G4double test = (A.z() - C.z()) * parity * pside; 622 581 623 if (test == 0) << 582 if (test == 0) { 624 { << 583 if (pside == 0) { 625 if (pside == 0) << 626 { << 627 // p is on surface. 584 // p is on surface. 628 xx = p; 585 xx = p; 629 distance[0] = 0; 586 distance[0] = 0; 630 gxx[0] = gp; 587 gxx[0] = gp; 631 588 632 G4bool isvalid = true; 589 G4bool isvalid = true; 633 fCurStat.SetCurrentStatus(0, gxx[0], 590 fCurStat.SetCurrentStatus(0, gxx[0], distance[0], areacode[0], 634 isvalid, 1, << 591 isvalid, 1, kDontValidate, &gp); 635 return 1; 592 return 1; 636 } << 593 } else { 637 else << 638 { << 639 // A.z = C.z(). return distance to li 594 // A.z = C.z(). return distance to line. 640 d[0] = C - A; 595 d[0] = C - A; 641 distance[0] = DistanceToLine(p, A, d[ 596 distance[0] = DistanceToLine(p, A, d[0], xx); 642 areacode[0] = sInside; 597 areacode[0] = sInside; 643 gxx[0] = ComputeGlobalPoint(xx); 598 gxx[0] = ComputeGlobalPoint(xx); 644 G4bool isvalid = true; 599 G4bool isvalid = true; 645 fCurStat.SetCurrentStatus(0, gxx[0], 600 fCurStat.SetCurrentStatus(0, gxx[0], distance[0], areacode[0], 646 isvalid, 1, << 601 isvalid, 1, kDontValidate, &gp); 647 return 1; 602 return 1; 648 } 603 } 649 } << 604 650 else if (test < 0) // wrong diagonal. vect << 605 } else if (test < 0) { 651 { // swap A and D, C and << 606 >> 607 // wrong diagonal. vector AC is crossing the surface! >> 608 // swap A and D, C and B 652 G4ThreeVector tmp; 609 G4ThreeVector tmp; 653 tmp = A; 610 tmp = A; 654 A = D; 611 A = D; 655 D = tmp; 612 D = tmp; 656 tmp = C; 613 tmp = C; 657 C = B; 614 C = B; 658 B = tmp; 615 B = tmp; 659 616 660 } << 617 } else { 661 else // correct diagonal. nothing to do. << 618 // correct diagonal. nothing to do. 662 { << 663 } 619 } 664 620 665 // Now, we chose correct diagonal. << 621 // Now, we chose correct diaglnal. 666 // First try. divide quadrangle into double 622 // First try. divide quadrangle into double triangle by diagonal and 667 // calculate distance to both surfaces. 623 // calculate distance to both surfaces. 668 624 669 G4ThreeVector xxacb; // foot of normal fr 625 G4ThreeVector xxacb; // foot of normal from plane ACB to p 670 G4ThreeVector nacb; // normal of plane A 626 G4ThreeVector nacb; // normal of plane ACD 671 G4ThreeVector xxcad; // foot of normal fr 627 G4ThreeVector xxcad; // foot of normal from plane CAD to p 672 G4ThreeVector ncad; // normal of plane C 628 G4ThreeVector ncad; // normal of plane CAD 673 G4ThreeVector AB(A.x(), A.y(), 0); 629 G4ThreeVector AB(A.x(), A.y(), 0); 674 G4ThreeVector DC(C.x(), C.y(), 0); 630 G4ThreeVector DC(C.x(), C.y(), 0); 675 631 676 G4double distToACB = G4VTwistSurface::Dista << 632 G4double distToACB = G4VTwistSurface::DistanceToPlane(p, A, C-A, AB, xxacb, nacb) * parity; 677 << 633 G4double distToCAD = G4VTwistSurface::DistanceToPlane(p, C, C-A, DC, xxcad, ncad) * parity; 678 G4double distToCAD = G4VTwistSurface::Dista << 634 679 << 680 // if calculated distance = 0, return 635 // if calculated distance = 0, return 681 636 682 if (std::fabs(distToACB) <= halftol || std: << 637 if (std::fabs(distToACB) <= halftol || std::fabs(distToCAD) <= halftol) { 683 { << 684 xx = (std::fabs(distToACB) < std::fabs(d 638 xx = (std::fabs(distToACB) < std::fabs(distToCAD) ? xxacb : xxcad); 685 areacode[0] = sInside; 639 areacode[0] = sInside; 686 gxx[0] = ComputeGlobalPoint(xx); 640 gxx[0] = ComputeGlobalPoint(xx); 687 distance[0] = 0; 641 distance[0] = 0; 688 G4bool isvalid = true; 642 G4bool isvalid = true; 689 fCurStat.SetCurrentStatus(0, gxx[0], dis 643 fCurStat.SetCurrentStatus(0, gxx[0], distance[0] , areacode[0], 690 isvalid, 1, kD 644 isvalid, 1, kDontValidate, &gp); 691 return 1; 645 return 1; 692 } 646 } 693 647 694 if (distToACB * distToCAD > 0 && distToACB << 648 if (distToACB * distToCAD > 0 && distToACB < 0) { 695 { << 696 // both distToACB and distToCAD are nega 649 // both distToACB and distToCAD are negative. 697 // divide quadrangle into double triangl 650 // divide quadrangle into double triangle by diagonal 698 G4ThreeVector normal; 651 G4ThreeVector normal; 699 distance[0] = DistanceToPlane(p, A, B, C 652 distance[0] = DistanceToPlane(p, A, B, C, D, parity, xx, normal); 700 } << 653 } else { 701 else << 654 if (distToACB * distToCAD > 0) { 702 { << 703 if (distToACB * distToCAD > 0) << 704 { << 705 // both distToACB and distToCAD are p 655 // both distToACB and distToCAD are positive. 706 // Take smaller one. 656 // Take smaller one. 707 if (distToACB <= distToCAD) << 657 if (distToACB <= distToCAD) { 708 { << 709 distance[0] = distToACB; 658 distance[0] = distToACB; 710 xx = xxacb; 659 xx = xxacb; 711 } << 660 } else { 712 else << 713 { << 714 distance[0] = distToCAD; 661 distance[0] = distToCAD; 715 xx = xxcad; 662 xx = xxcad; 716 } 663 } 717 } << 664 } else { 718 else << 719 { << 720 // distToACB * distToCAD is negative. 665 // distToACB * distToCAD is negative. 721 // take positive one 666 // take positive one 722 if (distToACB > 0) << 667 if (distToACB > 0) { 723 { << 724 distance[0] = distToACB; 668 distance[0] = distToACB; 725 xx = xxacb; 669 xx = xxacb; 726 } << 670 } else { 727 else << 728 { << 729 distance[0] = distToCAD; 671 distance[0] = distToCAD; 730 xx = xxcad; 672 xx = xxcad; 731 } 673 } 732 } 674 } >> 675 733 } 676 } 734 areacode[0] = sInside; 677 areacode[0] = sInside; 735 gxx[0] = ComputeGlobalPoint(xx); 678 gxx[0] = ComputeGlobalPoint(xx); 736 G4bool isvalid = true; 679 G4bool isvalid = true; 737 fCurStat.SetCurrentStatus(0, gxx[0], distan 680 fCurStat.SetCurrentStatus(0, gxx[0], distance[0], areacode[0], 738 isvalid, 1, kDont 681 isvalid, 1, kDontValidate, &gp); 739 return 1; 682 return 1; 740 } 683 } 741 684 742 //============================================ 685 //===================================================================== 743 //* DistanceToPlane -------------------------- 686 //* DistanceToPlane --------------------------------------------------- 744 687 745 G4double G4TwistTubsSide::DistanceToPlane(cons << 688 G4double G4TwistTubsSide::DistanceToPlane(const G4ThreeVector &p, 746 cons << 689 const G4ThreeVector &A, 747 cons << 690 const G4ThreeVector &B, 748 cons << 691 const G4ThreeVector &C, 749 cons << 692 const G4ThreeVector &D, 750 cons << 693 const G4int parity, 751 << 694 G4ThreeVector &xx, 752 << 695 G4ThreeVector &n) 753 { 696 { 754 const G4double halftol = 0.5 * kCarToleranc << 697 static const G4double halftol = 0.5 * kCarTolerance; 755 698 756 G4ThreeVector M = 0.5*(A + B); 699 G4ThreeVector M = 0.5*(A + B); 757 G4ThreeVector N = 0.5*(C + D); 700 G4ThreeVector N = 0.5*(C + D); 758 G4ThreeVector xxanm; // foot of normal fro 701 G4ThreeVector xxanm; // foot of normal from p to plane ANM 759 G4ThreeVector nanm; // normal of plane AN 702 G4ThreeVector nanm; // normal of plane ANM 760 G4ThreeVector xxcmn; // foot of normal fro 703 G4ThreeVector xxcmn; // foot of normal from p to plane CMN 761 G4ThreeVector ncmn; // normal of plane CM 704 G4ThreeVector ncmn; // normal of plane CMN 762 705 763 G4double distToanm = G4VTwistSurface::Dista << 706 G4double distToanm = G4VTwistSurface::DistanceToPlane(p, A, (N - A), (M - A), xxanm, nanm) * parity; 764 << 707 G4double distTocmn = G4VTwistSurface::DistanceToPlane(p, C, (M - C), (N - C), xxcmn, ncmn) * parity; 765 G4double distTocmn = G4VTwistSurface::Dista << 708 766 << 767 #ifdef G4SPECSDEBUG << 768 // if p is behind of both surfaces, abort. 709 // if p is behind of both surfaces, abort. 769 if (distToanm * distTocmn > 0 && distToanm << 710 if (distToanm * distTocmn > 0 && distToanm < 0) { 770 { << 771 G4Exception("G4TwistTubsSide::DistanceToP 711 G4Exception("G4TwistTubsSide::DistanceToPlane()", 772 "GeomSolids0003", FatalExcept 712 "GeomSolids0003", FatalException, 773 "Point p is behind the surfac 713 "Point p is behind the surfaces."); 774 } 714 } 775 #endif << 715 776 // if p is on surface, return 0. 716 // if p is on surface, return 0. 777 if (std::fabs(distToanm) <= halftol) << 717 if (std::fabs(distToanm) <= halftol) { 778 { << 779 xx = xxanm; 718 xx = xxanm; 780 n = nanm * parity; 719 n = nanm * parity; 781 return 0; 720 return 0; 782 } << 721 } else if (std::fabs(distTocmn) <= halftol) { 783 else if (std::fabs(distTocmn) <= halftol) << 784 { << 785 xx = xxcmn; 722 xx = xxcmn; 786 n = ncmn * parity; 723 n = ncmn * parity; 787 return 0; 724 return 0; 788 } 725 } 789 726 790 if (distToanm <= distTocmn) << 727 if (distToanm <= distTocmn) { 791 { << 728 if (distToanm > 0) { 792 if (distToanm > 0) << 793 { << 794 // both distanses are positive. take 729 // both distanses are positive. take smaller one. 795 xx = xxanm; 730 xx = xxanm; 796 n = nanm * parity; 731 n = nanm * parity; 797 return distToanm; 732 return distToanm; 798 } << 733 } else { 799 else << 800 { << 801 // take -ve distance and call the fun 734 // take -ve distance and call the function recursively. 802 return DistanceToPlane(p, A, M, N, D, 735 return DistanceToPlane(p, A, M, N, D, parity, xx, n); 803 } 736 } 804 } << 737 } else { 805 else << 738 if (distTocmn > 0) { 806 { << 807 if (distTocmn > 0) << 808 { << 809 // both distanses are positive. take 739 // both distanses are positive. take smaller one. 810 xx = xxcmn; 740 xx = xxcmn; 811 n = ncmn * parity; 741 n = ncmn * parity; 812 return distTocmn; 742 return distTocmn; 813 } << 743 } else { 814 else << 815 { << 816 // take -ve distance and call the fun 744 // take -ve distance and call the function recursively. 817 return DistanceToPlane(p, C, N, M, B, 745 return DistanceToPlane(p, C, N, M, B, parity, xx, n); 818 } 746 } 819 } 747 } 820 } 748 } 821 749 822 //============================================ 750 //===================================================================== 823 //* GetAreaCode ------------------------------ 751 //* GetAreaCode ------------------------------------------------------- 824 752 825 G4int G4TwistTubsSide::GetAreaCode(const G4Thr << 753 G4int G4TwistTubsSide::GetAreaCode(const G4ThreeVector &xx, 826 G4boo << 754 G4bool withTol) 827 { 755 { 828 // We must use the function in local coordi 756 // We must use the function in local coordinate system. 829 // See the description of DistanceToSurface 757 // See the description of DistanceToSurface(p,v). 830 758 831 const G4double ctol = 0.5 * kCarTolerance; << 759 static const G4double ctol = 0.5 * kCarTolerance; 832 G4int areacode = sInside; 760 G4int areacode = sInside; 833 761 834 if (fAxis[0] == kXAxis && fAxis[1] == kZAxi << 762 if (fAxis[0] == kXAxis && fAxis[1] == kZAxis) { 835 { << 836 G4int xaxis = 0; 763 G4int xaxis = 0; 837 G4int zaxis = 1; 764 G4int zaxis = 1; 838 765 839 if (withTol) << 766 if (withTol) { 840 { << 767 841 G4bool isoutside = false; 768 G4bool isoutside = false; 842 769 843 // test boundary of xaxis 770 // test boundary of xaxis 844 771 845 if (xx.x() < fAxisMin[xaxis] + ctol) << 772 if (xx.x() < fAxisMin[xaxis] + ctol) { 846 { << 847 areacode |= (sAxis0 & (sAxisX | sA 773 areacode |= (sAxis0 & (sAxisX | sAxisMin)) | sBoundary; 848 if (xx.x() <= fAxisMin[xaxis] - ct 774 if (xx.x() <= fAxisMin[xaxis] - ctol) isoutside = true; 849 775 850 } << 776 } else if (xx.x() > fAxisMax[xaxis] - ctol) { 851 else if (xx.x() > fAxisMax[xaxis] - c << 852 { << 853 areacode |= (sAxis0 & (sAxisX | sA 777 areacode |= (sAxis0 & (sAxisX | sAxisMax)) | sBoundary; 854 if (xx.x() >= fAxisMax[xaxis] + ct 778 if (xx.x() >= fAxisMax[xaxis] + ctol) isoutside = true; 855 } 779 } 856 780 857 // test boundary of z-axis 781 // test boundary of z-axis 858 782 859 if (xx.z() < fAxisMin[zaxis] + ctol) << 783 if (xx.z() < fAxisMin[zaxis] + ctol) { 860 { << 861 areacode |= (sAxis1 & (sAxisZ | sA 784 areacode |= (sAxis1 & (sAxisZ | sAxisMin)); 862 785 863 if ((areacode & sBoundary) != 0) << 786 if (areacode & sBoundary) areacode |= sCorner; // xx is on the corner. 864 else areaco 787 else areacode |= sBoundary; 865 if (xx.z() <= fAxisMin[zaxis] - ct 788 if (xx.z() <= fAxisMin[zaxis] - ctol) isoutside = true; 866 789 867 } << 790 } else if (xx.z() > fAxisMax[zaxis] - ctol) { 868 else if (xx.z() > fAxisMax[zaxis] - c << 869 { << 870 areacode |= (sAxis1 & (sAxisZ | sA 791 areacode |= (sAxis1 & (sAxisZ | sAxisMax)); 871 792 872 if ((areacode & sBoundary) != 0) << 793 if (areacode & sBoundary) areacode |= sCorner; // xx is on the corner. 873 else areaco 794 else areacode |= sBoundary; 874 if (xx.z() >= fAxisMax[zaxis] + ct 795 if (xx.z() >= fAxisMax[zaxis] + ctol) isoutside = true; 875 } 796 } 876 797 877 // if isoutside = true, clear inside 798 // if isoutside = true, clear inside bit. 878 // if not on boundary, add axis infor 799 // if not on boundary, add axis information. 879 800 880 if (isoutside) << 801 if (isoutside) { 881 { << 882 G4int tmpareacode = areacode & (~s 802 G4int tmpareacode = areacode & (~sInside); 883 areacode = tmpareacode; 803 areacode = tmpareacode; 884 } << 804 } else if ((areacode & sBoundary) != sBoundary) { 885 else if ((areacode & sBoundary) != sB << 886 { << 887 areacode |= (sAxis0 & sAxisX) | (s 805 areacode |= (sAxis0 & sAxisX) | (sAxis1 & sAxisZ); 888 } << 806 } 889 } << 807 890 else << 808 } else { 891 { << 809 892 // boundary of x-axis 810 // boundary of x-axis 893 811 894 if (xx.x() < fAxisMin[xaxis] ) << 812 if (xx.x() < fAxisMin[xaxis] ) { 895 { << 896 areacode |= (sAxis0 & (sAxisX | sA 813 areacode |= (sAxis0 & (sAxisX | sAxisMin)) | sBoundary; 897 } << 814 } else if (xx.x() > fAxisMax[xaxis]) { 898 else if (xx.x() > fAxisMax[xaxis]) << 899 { << 900 areacode |= (sAxis0 & (sAxisX | sA 815 areacode |= (sAxis0 & (sAxisX | sAxisMax)) | sBoundary; 901 } 816 } 902 817 903 // boundary of z-axis 818 // boundary of z-axis 904 819 905 if (xx.z() < fAxisMin[zaxis]) << 820 if (xx.z() < fAxisMin[zaxis]) { 906 { << 907 areacode |= (sAxis1 & (sAxisZ | sA 821 areacode |= (sAxis1 & (sAxisZ | sAxisMin)); 908 if ((areacode & sBoundary) != 0) << 822 if (areacode & sBoundary) areacode |= sCorner; // xx is on the corner. 909 else areaco 823 else areacode |= sBoundary; 910 824 911 } << 825 } else if (xx.z() > fAxisMax[zaxis]) { 912 else if (xx.z() > fAxisMax[zaxis]) << 913 { << 914 areacode |= (sAxis1 & (sAxisZ | sA 826 areacode |= (sAxis1 & (sAxisZ | sAxisMax)) ; 915 if ((areacode & sBoundary) != 0) << 827 if (areacode & sBoundary) areacode |= sCorner; // xx is on the corner. 916 else areaco 828 else areacode |= sBoundary; 917 } 829 } 918 830 919 if ((areacode & sBoundary) != sBounda << 831 if ((areacode & sBoundary) != sBoundary) { 920 { << 921 areacode |= (sAxis0 & sAxisX) | (s 832 areacode |= (sAxis0 & sAxisX) | (sAxis1 & sAxisZ); 922 } 833 } 923 } 834 } 924 return areacode; 835 return areacode; 925 } << 836 } else { 926 else << 927 { << 928 G4Exception("G4TwistTubsSide::GetAreaCod 837 G4Exception("G4TwistTubsSide::GetAreaCode()", 929 "GeomSolids0001", FatalExcep 838 "GeomSolids0001", FatalException, 930 "Feature NOT implemented !") 839 "Feature NOT implemented !"); 931 } 840 } 932 return areacode; 841 return areacode; 933 } 842 } 934 843 935 //============================================ 844 //===================================================================== 936 //* SetCorners( arglist ) -------------------- 845 //* SetCorners( arglist ) ------------------------------------------------- 937 846 938 void G4TwistTubsSide::SetCorners( G4double end << 847 void G4TwistTubsSide::SetCorners( 939 G4double end << 848 G4double endInnerRad[2], 940 G4double end << 849 G4double endOuterRad[2], 941 G4double end << 850 G4double endPhi[2], >> 851 G4double endZ[2]) 942 { 852 { 943 // Set Corner points in local coodinate. 853 // Set Corner points in local coodinate. 944 854 945 if (fAxis[0] == kXAxis && fAxis[1] == kZAxi << 855 if (fAxis[0] == kXAxis && fAxis[1] == kZAxis) { 946 { << 856 947 G4int zmin = 0 ; // at -ve z 857 G4int zmin = 0 ; // at -ve z 948 G4int zmax = 1 ; // at +ve z 858 G4int zmax = 1 ; // at +ve z 949 859 950 G4double x, y, z; 860 G4double x, y, z; 951 861 952 // corner of Axis0min and Axis1min 862 // corner of Axis0min and Axis1min 953 x = endInnerRad[zmin]*std::cos(endPhi[zm 863 x = endInnerRad[zmin]*std::cos(endPhi[zmin]); 954 y = endInnerRad[zmin]*std::sin(endPhi[zm 864 y = endInnerRad[zmin]*std::sin(endPhi[zmin]); 955 z = endZ[zmin]; 865 z = endZ[zmin]; 956 SetCorner(sC0Min1Min, x, y, z); 866 SetCorner(sC0Min1Min, x, y, z); 957 867 958 // corner of Axis0max and Axis1min 868 // corner of Axis0max and Axis1min 959 x = endOuterRad[zmin]*std::cos(endPhi[zm 869 x = endOuterRad[zmin]*std::cos(endPhi[zmin]); 960 y = endOuterRad[zmin]*std::sin(endPhi[zm 870 y = endOuterRad[zmin]*std::sin(endPhi[zmin]); 961 z = endZ[zmin]; 871 z = endZ[zmin]; 962 SetCorner(sC0Max1Min, x, y, z); 872 SetCorner(sC0Max1Min, x, y, z); 963 873 964 // corner of Axis0max and Axis1max 874 // corner of Axis0max and Axis1max 965 x = endOuterRad[zmax]*std::cos(endPhi[zm 875 x = endOuterRad[zmax]*std::cos(endPhi[zmax]); 966 y = endOuterRad[zmax]*std::sin(endPhi[zm 876 y = endOuterRad[zmax]*std::sin(endPhi[zmax]); 967 z = endZ[zmax]; 877 z = endZ[zmax]; 968 SetCorner(sC0Max1Max, x, y, z); 878 SetCorner(sC0Max1Max, x, y, z); 969 879 970 // corner of Axis0min and Axis1max 880 // corner of Axis0min and Axis1max 971 x = endInnerRad[zmax]*std::cos(endPhi[zm 881 x = endInnerRad[zmax]*std::cos(endPhi[zmax]); 972 y = endInnerRad[zmax]*std::sin(endPhi[zm 882 y = endInnerRad[zmax]*std::sin(endPhi[zmax]); 973 z = endZ[zmax]; 883 z = endZ[zmax]; 974 SetCorner(sC0Min1Max, x, y, z); 884 SetCorner(sC0Min1Max, x, y, z); 975 885 976 } << 886 } else { 977 else << 978 { << 979 std::ostringstream message; 887 std::ostringstream message; 980 message << "Feature NOT implemented !" < 888 message << "Feature NOT implemented !" << G4endl 981 << " fAxis[0] = " << fAxi 889 << " fAxis[0] = " << fAxis[0] << G4endl 982 << " fAxis[1] = " << fAxi 890 << " fAxis[1] = " << fAxis[1]; 983 G4Exception("G4TwistTubsSide::SetCorners 891 G4Exception("G4TwistTubsSide::SetCorners()", 984 "GeomSolids0001", FatalExcep 892 "GeomSolids0001", FatalException, message); 985 } 893 } 986 } 894 } 987 895 988 //============================================ 896 //===================================================================== 989 //* SetCorners() ----------------------------- 897 //* SetCorners() ------------------------------------------------------ 990 898 991 void G4TwistTubsSide::SetCorners() 899 void G4TwistTubsSide::SetCorners() 992 { 900 { 993 G4Exception("G4TwistTubsSide::SetCorners()" 901 G4Exception("G4TwistTubsSide::SetCorners()", 994 "GeomSolids0001", FatalExceptio 902 "GeomSolids0001", FatalException, 995 "Method NOT implemented !"); 903 "Method NOT implemented !"); 996 } 904 } 997 905 998 //============================================ 906 //===================================================================== 999 //* SetBoundaries() -------------------------- 907 //* SetBoundaries() --------------------------------------------------- 1000 908 1001 void G4TwistTubsSide::SetBoundaries() 909 void G4TwistTubsSide::SetBoundaries() 1002 { 910 { 1003 // Set direction-unit vector of boundary-l 911 // Set direction-unit vector of boundary-lines in local coodinate. 1004 // 912 // 1005 G4ThreeVector direction; 913 G4ThreeVector direction; 1006 914 1007 if (fAxis[0] == kXAxis && fAxis[1] == kZAx << 915 if (fAxis[0] == kXAxis && fAxis[1] == kZAxis) { 1008 { << 916 1009 // sAxis0 & sAxisMin 917 // sAxis0 & sAxisMin 1010 direction = GetCorner(sC0Min1Max) - Get 918 direction = GetCorner(sC0Min1Max) - GetCorner(sC0Min1Min); 1011 direction = direction.unit(); 919 direction = direction.unit(); 1012 SetBoundary(sAxis0 & (sAxisX | sAxisMin 920 SetBoundary(sAxis0 & (sAxisX | sAxisMin), direction, 1013 GetCorner(sC0Min1Min), sAxi 921 GetCorner(sC0Min1Min), sAxisZ) ; 1014 922 1015 // sAxis0 & sAxisMax 923 // sAxis0 & sAxisMax 1016 direction = GetCorner(sC0Max1Max) - Get 924 direction = GetCorner(sC0Max1Max) - GetCorner(sC0Max1Min); 1017 direction = direction.unit(); 925 direction = direction.unit(); 1018 SetBoundary(sAxis0 & (sAxisX | sAxisMax 926 SetBoundary(sAxis0 & (sAxisX | sAxisMax), direction, 1019 GetCorner(sC0Max1Min), sAxi 927 GetCorner(sC0Max1Min), sAxisZ); 1020 928 1021 // sAxis1 & sAxisMin 929 // sAxis1 & sAxisMin 1022 direction = GetCorner(sC0Max1Min) - Get 930 direction = GetCorner(sC0Max1Min) - GetCorner(sC0Min1Min); 1023 direction = direction.unit(); 931 direction = direction.unit(); 1024 SetBoundary(sAxis1 & (sAxisZ | sAxisMin 932 SetBoundary(sAxis1 & (sAxisZ | sAxisMin), direction, 1025 GetCorner(sC0Min1Min), sAxi 933 GetCorner(sC0Min1Min), sAxisX); 1026 934 1027 // sAxis1 & sAxisMax 935 // sAxis1 & sAxisMax 1028 direction = GetCorner(sC0Max1Max) - Get 936 direction = GetCorner(sC0Max1Max) - GetCorner(sC0Min1Max); 1029 direction = direction.unit(); 937 direction = direction.unit(); 1030 SetBoundary(sAxis1 & (sAxisZ | sAxisMax 938 SetBoundary(sAxis1 & (sAxisZ | sAxisMax), direction, 1031 GetCorner(sC0Min1Max), sAxi 939 GetCorner(sC0Min1Max), sAxisX); 1032 940 1033 } << 941 } else { 1034 else << 1035 { << 1036 std::ostringstream message; 942 std::ostringstream message; 1037 message << "Feature NOT implemented !" 943 message << "Feature NOT implemented !" << G4endl 1038 << " fAxis[0] = " << fAx 944 << " fAxis[0] = " << fAxis[0] << G4endl 1039 << " fAxis[1] = " << fAx 945 << " fAxis[1] = " << fAxis[1]; 1040 G4Exception("G4TwistTubsSide::SetCorner 946 G4Exception("G4TwistTubsSide::SetCorners()", 1041 "GeomSolids0001", FatalExce 947 "GeomSolids0001", FatalException, message); 1042 } 948 } 1043 } 949 } 1044 950 1045 //=========================================== 951 //===================================================================== 1046 //* GetFacets() ----------------------------- 952 //* GetFacets() ------------------------------------------------------- 1047 953 1048 void G4TwistTubsSide::GetFacets( G4int k, G4i << 954 void G4TwistTubsSide::GetFacets( G4int m, G4int n, G4double xyz[][3], 1049 G4int faces[ 955 G4int faces[][4], G4int iside ) 1050 { 956 { >> 957 1051 G4double z ; // the two parameters for 958 G4double z ; // the two parameters for the surface equation 1052 G4double x,xmin,xmax ; 959 G4double x,xmin,xmax ; 1053 960 1054 G4ThreeVector p ; // a point on the surfac 961 G4ThreeVector p ; // a point on the surface, given by (z,u) 1055 962 1056 G4int nnode ; 963 G4int nnode ; 1057 G4int nface ; 964 G4int nface ; 1058 965 1059 // calculate the (n-1)*(k-1) vertices << 966 // calculate the (n-1)*(m-1) vertices 1060 967 1061 for ( G4int i = 0 ; i<n ; ++i ) << 968 G4int i,j ; >> 969 >> 970 for ( i = 0 ; i<n ; i++ ) 1062 { 971 { >> 972 1063 z = fAxisMin[1] + i*(fAxisMax[1]-fAxisMin 973 z = fAxisMin[1] + i*(fAxisMax[1]-fAxisMin[1])/(n-1) ; 1064 974 1065 for ( G4int j = 0 ; j<k ; ++j ) << 975 for ( j = 0 ; j<m ; j++ ) { 1066 { << 976 1067 nnode = GetNode(i,j,k,n,iside) ; << 977 nnode = GetNode(i,j,m,n,iside) ; 1068 978 1069 xmin = GetBoundaryMin(z) ; 979 xmin = GetBoundaryMin(z) ; 1070 xmax = GetBoundaryMax(z) ; 980 xmax = GetBoundaryMax(z) ; 1071 981 1072 if (fHandedness < 0) << 982 if (fHandedness < 0) { 1073 { << 983 x = xmin + j*(xmax-xmin)/(m-1) ; 1074 x = xmin + j*(xmax-xmin)/(k-1) ; << 984 } else { 1075 } << 985 x = xmax - j*(xmax-xmin)/(m-1) ; 1076 else << 1077 { << 1078 x = xmax - j*(xmax-xmin)/(k-1) ; << 1079 } 986 } 1080 987 1081 p = SurfacePoint(x,z,true) ; // surfac 988 p = SurfacePoint(x,z,true) ; // surface point in global coord.system 1082 989 1083 xyz[nnode][0] = p.x() ; 990 xyz[nnode][0] = p.x() ; 1084 xyz[nnode][1] = p.y() ; 991 xyz[nnode][1] = p.y() ; 1085 xyz[nnode][2] = p.z() ; 992 xyz[nnode][2] = p.z() ; 1086 993 1087 if ( i<n-1 && j<k-1 ) // clock wise f << 994 if ( i<n-1 && j<m-1 ) { // clock wise filling 1088 { << 995 1089 nface = GetFace(i,j,k,n,iside) ; << 996 nface = GetFace(i,j,m,n,iside) ; 1090 << 997 1091 faces[nface][0] = GetEdgeVisibility(i,j,k,n << 998 faces[nface][0] = GetEdgeVisibility(i,j,m,n,0,1) * ( GetNode(i ,j ,m,n,iside)+1) ; 1092 * ( GetNode(i ,j ,k << 999 faces[nface][1] = GetEdgeVisibility(i,j,m,n,1,1) * ( GetNode(i+1,j ,m,n,iside)+1) ; 1093 faces[nface][1] = GetEdgeVisibility(i,j,k,n << 1000 faces[nface][2] = GetEdgeVisibility(i,j,m,n,2,1) * ( GetNode(i+1,j+1,m,n,iside)+1) ; 1094 * ( GetNode(i+1,j ,k << 1001 faces[nface][3] = GetEdgeVisibility(i,j,m,n,3,1) * ( GetNode(i ,j+1,m,n,iside)+1) ; 1095 faces[nface][2] = GetEdgeVisibility(i,j,k,n << 1002 1096 * ( GetNode(i+1,j+1,k << 1097 faces[nface][3] = GetEdgeVisibility(i,j,k,n << 1098 * ( GetNode(i ,j+1,k << 1099 } 1003 } 1100 } 1004 } 1101 } 1005 } 1102 } 1006 } 1103 1007