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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 // 26 // >> 27 // $Id: G4TheRayTracer.cc 86973 2014-11-21 11:57:27Z gcosmo $ 27 // 28 // 28 // 29 // 29 // 30 // 30 31 31 32 32 #include "G4TheRayTracer.hh" 33 #include "G4TheRayTracer.hh" 33 #include "G4SystemOfUnits.hh" 34 #include "G4SystemOfUnits.hh" 34 #include "G4EventManager.hh" 35 #include "G4EventManager.hh" 35 #include "G4RTMessenger.hh" 36 #include "G4RTMessenger.hh" 36 #include "G4RayShooter.hh" 37 #include "G4RayShooter.hh" 37 #include "G4VFigureFileMaker.hh" 38 #include "G4VFigureFileMaker.hh" 38 #include "G4RTTrackingAction.hh" 39 #include "G4RTTrackingAction.hh" 39 #include "G4RTSteppingAction.hh" 40 #include "G4RTSteppingAction.hh" 40 #include "G4RayTrajectory.hh" 41 #include "G4RayTrajectory.hh" 41 #include "G4RayTrajectoryPoint.hh" 42 #include "G4RayTrajectoryPoint.hh" 42 #include "G4RTJpegMaker.hh" 43 #include "G4RTJpegMaker.hh" 43 #include "G4RTSimpleScanner.hh" 44 #include "G4RTSimpleScanner.hh" 44 #include "G4GeometryManager.hh" 45 #include "G4GeometryManager.hh" 45 #include "G4SDManager.hh" 46 #include "G4SDManager.hh" 46 #include "G4StateManager.hh" 47 #include "G4StateManager.hh" 47 #include "G4Event.hh" 48 #include "G4Event.hh" 48 #include "G4TrajectoryContainer.hh" 49 #include "G4TrajectoryContainer.hh" 49 #include "G4Colour.hh" 50 #include "G4Colour.hh" 50 #include "G4VisAttributes.hh" 51 #include "G4VisAttributes.hh" 51 #include "G4UImanager.hh" 52 #include "G4UImanager.hh" 52 #include "G4TransportationManager.hh" 53 #include "G4TransportationManager.hh" 53 #include "G4RegionStore.hh" 54 #include "G4RegionStore.hh" 54 #include "G4ProductionCutsTable.hh" 55 #include "G4ProductionCutsTable.hh" 55 #include "G4VVisManager.hh" 56 #include "G4VVisManager.hh" 56 57 57 #define G4warn G4cout << 58 << 59 G4VFigureFileMaker * G4TheRayTracer::theFigMak << 60 G4VRTScanner * G4TheRayTracer::theScanner = 0; << 61 << 62 G4TheRayTracer::G4TheRayTracer(G4VFigureFileMa 58 G4TheRayTracer::G4TheRayTracer(G4VFigureFileMaker* figMaker, 63 G4VRTScanner* scanner) 59 G4VRTScanner* scanner) 64 { 60 { 65 theFigMaker = figMaker; 61 theFigMaker = figMaker; 66 if(!theFigMaker) theFigMaker = new G4RTJpegM 62 if(!theFigMaker) theFigMaker = new G4RTJpegMaker; 67 theScanner = scanner; 63 theScanner = scanner; 68 if(!theScanner) theScanner = new G4RTSimpleS 64 if(!theScanner) theScanner = new G4RTSimpleScanner; 69 theRayShooter = new G4RayShooter(); 65 theRayShooter = new G4RayShooter(); 70 theUserEventAction = 0; 66 theUserEventAction = 0; 71 theUserStackingAction = 0; 67 theUserStackingAction = 0; 72 theUserTrackingAction = 0; 68 theUserTrackingAction = 0; 73 theUserSteppingAction = 0; 69 theUserSteppingAction = 0; 74 theRayTracerEventAction = 0; 70 theRayTracerEventAction = 0; 75 theRayTracerStackingAction = 0; 71 theRayTracerStackingAction = 0; 76 theRayTracerTrackingAction = 0; 72 theRayTracerTrackingAction = 0; 77 theRayTracerSteppingAction = 0; 73 theRayTracerSteppingAction = 0; 78 colorR = 0; 74 colorR = 0; 79 colorG = 0; 75 colorG = 0; 80 colorB = 0; 76 colorB = 0; 81 77 82 theMessenger = G4RTMessenger::GetInstance(th 78 theMessenger = G4RTMessenger::GetInstance(this); 83 theEventManager = G4EventManager::GetEventMa 79 theEventManager = G4EventManager::GetEventManager(); 84 80 85 nColumn = 640; 81 nColumn = 640; 86 nRow = 640; 82 nRow = 640; 87 83 88 eyePosition = G4ThreeVector(1.*m,1.*m,1.*m); 84 eyePosition = G4ThreeVector(1.*m,1.*m,1.*m); 89 targetPosition = G4ThreeVector(0.,0.,0.); 85 targetPosition = G4ThreeVector(0.,0.,0.); 90 lightDirection = G4ThreeVector(-0.1,-0.2,-0. 86 lightDirection = G4ThreeVector(-0.1,-0.2,-0.3).unit(); 91 up = G4ThreeVector(0,1,0); 87 up = G4ThreeVector(0,1,0); 92 viewSpan = 5.0*deg; 88 viewSpan = 5.0*deg; 93 headAngle = 0.; 89 headAngle = 0.; 94 attenuationLength = 1.0*m; 90 attenuationLength = 1.0*m; 95 91 96 distortionOn = false; 92 distortionOn = false; 97 antialiasingOn = false; 93 antialiasingOn = false; 98 94 99 backgroundColour = G4Colour(1.,1.,1.); 95 backgroundColour = G4Colour(1.,1.,1.); 100 } 96 } 101 97 102 G4TheRayTracer::~G4TheRayTracer() 98 G4TheRayTracer::~G4TheRayTracer() 103 { 99 { 104 delete theRayShooter; 100 delete theRayShooter; 105 if(theRayTracerTrackingAction) delete theRay 101 if(theRayTracerTrackingAction) delete theRayTracerTrackingAction; 106 if(theRayTracerSteppingAction) delete theRay 102 if(theRayTracerSteppingAction) delete theRayTracerSteppingAction; 107 delete theMessenger; 103 delete theMessenger; 108 delete theScanner; 104 delete theScanner; 109 delete theFigMaker; 105 delete theFigMaker; 110 } 106 } 111 107 112 void G4TheRayTracer::Trace(const G4String& fil 108 void G4TheRayTracer::Trace(const G4String& fileName) 113 { 109 { 114 G4StateManager* theStateMan = G4StateManager 110 G4StateManager* theStateMan = G4StateManager::GetStateManager(); 115 G4ApplicationState currentState = theStateMa 111 G4ApplicationState currentState = theStateMan->GetCurrentState(); 116 if(currentState!=G4State_Idle) 112 if(currentState!=G4State_Idle) 117 { 113 { 118 G4warn << "Illegal application state - Tra << 114 G4cerr << "Illegal application state - Trace() ignored." << G4endl; 119 return; 115 return; 120 } 116 } 121 117 122 if(!theFigMaker) 118 if(!theFigMaker) 123 { 119 { 124 G4warn << "Figure file maker class is not << 120 G4cerr << "Figure file maker class is not specified - Trace() ignored." << G4endl; 125 return; 121 return; 126 } 122 } 127 123 128 G4UImanager* UI = G4UImanager::GetUIpointer( 124 G4UImanager* UI = G4UImanager::GetUIpointer(); 129 G4int storeTrajectory = UI->GetCurrentIntVal 125 G4int storeTrajectory = UI->GetCurrentIntValue("/tracking/storeTrajectory"); 130 if(storeTrajectory==0) UI->ApplyCommand("/tr 126 if(storeTrajectory==0) UI->ApplyCommand("/tracking/storeTrajectory 1"); 131 127 132 128 133 G4ThreeVector tmpVec = targetPosition - eyeP 129 G4ThreeVector tmpVec = targetPosition - eyePosition; 134 eyeDirection = tmpVec.unit(); 130 eyeDirection = tmpVec.unit(); 135 colorR = new unsigned char[nColumn*nRow]; 131 colorR = new unsigned char[nColumn*nRow]; 136 colorG = new unsigned char[nColumn*nRow]; 132 colorG = new unsigned char[nColumn*nRow]; 137 colorB = new unsigned char[nColumn*nRow]; 133 colorB = new unsigned char[nColumn*nRow]; 138 134 139 StoreUserActions(); 135 StoreUserActions(); 140 G4bool succeeded = CreateBitMap(); 136 G4bool succeeded = CreateBitMap(); 141 if(succeeded) 137 if(succeeded) 142 { CreateFigureFile(fileName); } 138 { CreateFigureFile(fileName); } 143 else 139 else 144 { G4warn << "Could not create figure file" < << 140 { G4cerr << "Could not create figure file" << G4endl; 145 G4warn << "You might set the eye position << 141 G4cerr << "You might set the eye position outside of the world volume" << G4endl; } 146 RestoreUserActions(); 142 RestoreUserActions(); 147 143 148 if(storeTrajectory==0) UI->ApplyCommand("/tr 144 if(storeTrajectory==0) UI->ApplyCommand("/tracking/storeTrajectory 0"); 149 145 150 delete [] colorR; 146 delete [] colorR; 151 delete [] colorG; 147 delete [] colorG; 152 delete [] colorB; 148 delete [] colorB; 153 } 149 } 154 150 155 void G4TheRayTracer::StoreUserActions() 151 void G4TheRayTracer::StoreUserActions() 156 { 152 { 157 theUserEventAction = theEventManager->GetUse 153 theUserEventAction = theEventManager->GetUserEventAction(); 158 theUserStackingAction = theEventManager->Get 154 theUserStackingAction = theEventManager->GetUserStackingAction(); 159 theUserTrackingAction = theEventManager->Get 155 theUserTrackingAction = theEventManager->GetUserTrackingAction(); 160 theUserSteppingAction = theEventManager->Get 156 theUserSteppingAction = theEventManager->GetUserSteppingAction(); 161 157 162 if(!theRayTracerTrackingAction) theRayTracer 158 if(!theRayTracerTrackingAction) theRayTracerTrackingAction = new G4RTTrackingAction(); 163 if(!theRayTracerSteppingAction) theRayTracer 159 if(!theRayTracerSteppingAction) theRayTracerSteppingAction = new G4RTSteppingAction(); 164 160 165 theEventManager->SetUserAction(theRayTracerE 161 theEventManager->SetUserAction(theRayTracerEventAction); 166 theEventManager->SetUserAction(theRayTracerS 162 theEventManager->SetUserAction(theRayTracerStackingAction); 167 theEventManager->SetUserAction(theRayTracerT 163 theEventManager->SetUserAction(theRayTracerTrackingAction); 168 theEventManager->SetUserAction(theRayTracerS 164 theEventManager->SetUserAction(theRayTracerSteppingAction); 169 165 170 G4SDManager* theSDMan = G4SDManager::GetSDMp 166 G4SDManager* theSDMan = G4SDManager::GetSDMpointerIfExist(); 171 if(theSDMan) 167 if(theSDMan) 172 { theSDMan->Activate("/",false); } 168 { theSDMan->Activate("/",false); } 173 169 174 G4GeometryManager* theGeomMan = G4GeometryMa 170 G4GeometryManager* theGeomMan = G4GeometryManager::GetInstance(); 175 theGeomMan->OpenGeometry(); 171 theGeomMan->OpenGeometry(); 176 theGeomMan->CloseGeometry(true); 172 theGeomMan->CloseGeometry(true); 177 } 173 } 178 174 179 void G4TheRayTracer::RestoreUserActions() 175 void G4TheRayTracer::RestoreUserActions() 180 { 176 { 181 theEventManager->SetUserAction(theUserEventA 177 theEventManager->SetUserAction(theUserEventAction); 182 theEventManager->SetUserAction(theUserStacki 178 theEventManager->SetUserAction(theUserStackingAction); 183 theEventManager->SetUserAction(theUserTracki 179 theEventManager->SetUserAction(theUserTrackingAction); 184 theEventManager->SetUserAction(theUserSteppi 180 theEventManager->SetUserAction(theUserSteppingAction); 185 181 186 G4SDManager* theSDMan = G4SDManager::GetSDMp 182 G4SDManager* theSDMan = G4SDManager::GetSDMpointerIfExist(); 187 if(theSDMan) 183 if(theSDMan) 188 { theSDMan->Activate("/",true); } 184 { theSDMan->Activate("/",true); } 189 } 185 } 190 186 191 #include "G4ProcessManager.hh" 187 #include "G4ProcessManager.hh" 192 #include "G4ProcessVector.hh" 188 #include "G4ProcessVector.hh" 193 #include "G4Geantino.hh" 189 #include "G4Geantino.hh" 194 190 195 G4bool G4TheRayTracer::CreateBitMap() 191 G4bool G4TheRayTracer::CreateBitMap() 196 { 192 { 197 G4int iEvent = 0; 193 G4int iEvent = 0; 198 G4double stepAngle = viewSpan/100.; 194 G4double stepAngle = viewSpan/100.; 199 G4double viewSpanX = stepAngle*nColumn; 195 G4double viewSpanX = stepAngle*nColumn; 200 G4double viewSpanY = stepAngle*nRow; 196 G4double viewSpanY = stepAngle*nRow; 201 G4bool succeeded; 197 G4bool succeeded; 202 198 203 G4VVisManager* visMan = G4VVisManager::GetCo 199 G4VVisManager* visMan = G4VVisManager::GetConcreteInstance(); 204 visMan->IgnoreStateChanges(true); 200 visMan->IgnoreStateChanges(true); 205 201 206 // Confirm process(es) of Geantino is initiali 202 // Confirm process(es) of Geantino is initialized 207 G4VPhysicalVolume* pWorld = 203 G4VPhysicalVolume* pWorld = 208 G4TransportationManager::GetTransportationMa 204 G4TransportationManager::GetTransportationManager()-> 209 GetNavigatorForTracking()->GetWorldVolume(); 205 GetNavigatorForTracking()->GetWorldVolume(); 210 G4RegionStore::GetInstance()->UpdateMaterial 206 G4RegionStore::GetInstance()->UpdateMaterialList(pWorld); 211 G4ProductionCutsTable::GetProductionCutsTabl 207 G4ProductionCutsTable::GetProductionCutsTable()->UpdateCoupleTable(pWorld); 212 G4ProcessVector* pVector 208 G4ProcessVector* pVector 213 = G4Geantino::GeantinoDefinition()->GetPro 209 = G4Geantino::GeantinoDefinition()->GetProcessManager()->GetProcessList(); 214 for (G4int j=0; j < (G4int)pVector->size(); << 210 for (G4int j=0; j < pVector->size(); ++j) { 215 (*pVector)[j]->BuildPhysicsTable(*(G4Gea 211 (*pVector)[j]->BuildPhysicsTable(*(G4Geantino::GeantinoDefinition())); 216 } 212 } 217 213 218 // Close geometry and set the application stat 214 // Close geometry and set the application state 219 G4GeometryManager* geomManager = G4GeometryM 215 G4GeometryManager* geomManager = G4GeometryManager::GetInstance(); 220 geomManager->OpenGeometry(); 216 geomManager->OpenGeometry(); 221 geomManager->CloseGeometry(1,0); 217 geomManager->CloseGeometry(1,0); 222 218 223 G4ThreeVector center(0,0,0); 219 G4ThreeVector center(0,0,0); 224 G4Navigator* navigator = 220 G4Navigator* navigator = 225 G4TransportationManager::GetTransportati 221 G4TransportationManager::GetTransportationManager()->GetNavigatorForTracking(); 226 navigator->LocateGlobalPointAndSetup(center, 222 navigator->LocateGlobalPointAndSetup(center,0,false); 227 223 228 G4StateManager* theStateMan = G4StateManager 224 G4StateManager* theStateMan = G4StateManager::GetStateManager(); 229 theStateMan->SetNewState(G4State_GeomClosed) 225 theStateMan->SetNewState(G4State_GeomClosed); 230 226 231 // Event loop 227 // Event loop 232 theScanner->Initialize(nRow,nColumn); 228 theScanner->Initialize(nRow,nColumn); 233 G4int iRow, iColumn; 229 G4int iRow, iColumn; 234 while (theScanner->Coords(iRow,iColumn)) { 230 while (theScanner->Coords(iRow,iColumn)) { 235 G4int iCoord = iRow * nColumn + iColumn; 231 G4int iCoord = iRow * nColumn + iColumn; 236 G4double dRow = 0, dColumn = 0; // Anti 232 G4double dRow = 0, dColumn = 0; // Antialiasing increments. 237 G4Event* anEvent = new G4Event(iEvent++) 233 G4Event* anEvent = new G4Event(iEvent++); 238 G4double angleX = -(viewSpanX/2. - (iCol 234 G4double angleX = -(viewSpanX/2. - (iColumn+dColumn)*stepAngle); 239 G4double angleY = viewSpanY/2. - (iRow+d 235 G4double angleY = viewSpanY/2. - (iRow+dRow)*stepAngle; 240 G4ThreeVector rayDirection; 236 G4ThreeVector rayDirection; 241 if(distortionOn) 237 if(distortionOn) 242 { 238 { 243 rayDirection = G4ThreeVector(-std::tan(angle 239 rayDirection = G4ThreeVector(-std::tan(angleX)/std::cos(angleY),std::tan(angleY)/std::cos(angleX),1.0); 244 } 240 } 245 else 241 else 246 { 242 { 247 rayDirection = G4ThreeVector(-std::tan(angle 243 rayDirection = G4ThreeVector(-std::tan(angleX),std::tan(angleY),1.0); 248 } 244 } 249 G4double cp = std::cos(eyeDirection.phi( 245 G4double cp = std::cos(eyeDirection.phi()); 250 G4double sp = std::sqrt(1.-cp*cp); 246 G4double sp = std::sqrt(1.-cp*cp); 251 G4double ct = std::cos(eyeDirection.thet 247 G4double ct = std::cos(eyeDirection.theta()); 252 G4double st = std::sqrt(1.-ct*ct); 248 G4double st = std::sqrt(1.-ct*ct); 253 G4double gamma = std::atan2(ct*cp*up.x() 249 G4double gamma = std::atan2(ct*cp*up.x()+ct*sp*up.y()-st*up.z(), -sp*up.x()+cp*up.y()); 254 rayDirection.rotateZ(-gamma); 250 rayDirection.rotateZ(-gamma); 255 rayDirection.rotateZ(headAngle); 251 rayDirection.rotateZ(headAngle); 256 rayDirection.rotateUz(eyeDirection); 252 rayDirection.rotateUz(eyeDirection); 257 G4ThreeVector rayPosition(eyePosition); 253 G4ThreeVector rayPosition(eyePosition); 258 G4bool interceptable = true; 254 G4bool interceptable = true; 259 // Check if rayPosition is in the world. 255 // Check if rayPosition is in the world. 260 EInside whereisit = 256 EInside whereisit = 261 pWorld->GetLogicalVolume()->GetSolid()->Insi 257 pWorld->GetLogicalVolume()->GetSolid()->Inside(rayPosition); 262 if (whereisit != kInside) { 258 if (whereisit != kInside) { 263 // It's outside the world, so move it inside 259 // It's outside the world, so move it inside. 264 G4double outsideDistance = 260 G4double outsideDistance = 265 pWorld->GetLogicalVolume()->GetSolid()-> 261 pWorld->GetLogicalVolume()->GetSolid()-> 266 DistanceToIn(rayPosition,rayDirection); 262 DistanceToIn(rayPosition,rayDirection); 267 if (outsideDistance != kInfinity) { 263 if (outsideDistance != kInfinity) { 268 // Borrowing from geometry, where 1e-8 < e 264 // Borrowing from geometry, where 1e-8 < epsilon < 1e-3, in 269 // absolute/internal length units, is used 265 // absolute/internal length units, is used for ensuring good 270 // behaviour, choose to add 0.001 to ensur 266 // behaviour, choose to add 0.001 to ensure rayPosition is 271 // definitely inside the world volume (JA 267 // definitely inside the world volume (JA 16/9/2005)... 272 rayPosition = rayPosition+(outsideDistance 268 rayPosition = rayPosition+(outsideDistance+0.001)*rayDirection; 273 } 269 } 274 else { 270 else { 275 interceptable = false; 271 interceptable = false; 276 } 272 } 277 } 273 } 278 if (interceptable) { 274 if (interceptable) { 279 theRayShooter->Shoot(anEvent,rayPosition,ray 275 theRayShooter->Shoot(anEvent,rayPosition,rayDirection.unit()); 280 theEventManager->ProcessOneEvent(anEvent); 276 theEventManager->ProcessOneEvent(anEvent); 281 succeeded = GenerateColour(anEvent); 277 succeeded = GenerateColour(anEvent); 282 colorR[iCoord] = (unsigned char)(G4int(255*r << 278 colorR[iCoord] = (unsigned char)(int(255*rayColour.GetRed())); 283 colorG[iCoord] = (unsigned char)(G4int(255*r << 279 colorG[iCoord] = (unsigned char)(int(255*rayColour.GetGreen())); 284 colorB[iCoord] = (unsigned char)(G4int(255*r << 280 colorB[iCoord] = (unsigned char)(int(255*rayColour.GetBlue())); 285 } else { // Ray does not intercept worl 281 } else { // Ray does not intercept world at all. 286 // Store background colour... 282 // Store background colour... 287 colorR[iCoord] = (unsigned char)(G4int(255*b << 283 colorR[iCoord] = (unsigned char)(int(255*backgroundColour.GetRed())); 288 colorG[iCoord] = (unsigned char)(G4int(255*b << 284 colorG[iCoord] = (unsigned char)(int(255*backgroundColour.GetGreen())); 289 colorB[iCoord] = (unsigned char)(G4int(255*b << 285 colorB[iCoord] = (unsigned char)(int(255*backgroundColour.GetBlue())); 290 succeeded = true; 286 succeeded = true; 291 } 287 } 292 288 293 theScanner->Draw(colorR[iCoord],colorG[i 289 theScanner->Draw(colorR[iCoord],colorG[iCoord],colorB[iCoord]); 294 290 295 delete anEvent; 291 delete anEvent; 296 if(!succeeded) return false; 292 if(!succeeded) return false; 297 } 293 } 298 294 299 theStateMan->SetNewState(G4State_Idle); 295 theStateMan->SetNewState(G4State_Idle); 300 visMan->IgnoreStateChanges(false); 296 visMan->IgnoreStateChanges(false); 301 return true; 297 return true; 302 } 298 } 303 299 304 void G4TheRayTracer::CreateFigureFile(const G4 300 void G4TheRayTracer::CreateFigureFile(const G4String& fileName) 305 { 301 { 306 //G4cout << nColumn << " " << nRow << G4endl 302 //G4cout << nColumn << " " << nRow << G4endl; 307 theFigMaker->CreateFigureFile(fileName,nColu 303 theFigMaker->CreateFigureFile(fileName,nColumn,nRow,colorR,colorG,colorB); 308 } 304 } 309 305 310 G4bool G4TheRayTracer::GenerateColour(G4Event* 306 G4bool G4TheRayTracer::GenerateColour(G4Event* anEvent) 311 { 307 { 312 G4TrajectoryContainer * trajectoryContainer 308 G4TrajectoryContainer * trajectoryContainer = anEvent->GetTrajectoryContainer(); 313 309 314 G4RayTrajectory* trajectory = (G4RayTrajecto 310 G4RayTrajectory* trajectory = (G4RayTrajectory*)( (*trajectoryContainer)[0] ); 315 if(!trajectory) return false; 311 if(!trajectory) return false; 316 312 317 G4int nPoint = trajectory->GetPointEntries() 313 G4int nPoint = trajectory->GetPointEntries(); 318 if(nPoint==0) return false; 314 if(nPoint==0) return false; 319 315 320 G4Colour initialColour(backgroundColour); 316 G4Colour initialColour(backgroundColour); 321 if( trajectory->GetPointC(nPoint-1)->GetPost 317 if( trajectory->GetPointC(nPoint-1)->GetPostStepAtt() ) 322 { initialColour = GetSurfaceColour(trajector 318 { initialColour = GetSurfaceColour(trajectory->GetPointC(nPoint-1)); } 323 rayColour = Attenuate(trajectory->GetPointC( 319 rayColour = Attenuate(trajectory->GetPointC(nPoint-1),initialColour); 324 320 325 for(G4int i=nPoint-2;i>=0;--i) << 321 for(int i=nPoint-2;i>=0;i--) 326 { 322 { 327 G4Colour surfaceColour = GetSurfaceColour( 323 G4Colour surfaceColour = GetSurfaceColour(trajectory->GetPointC(i)); 328 G4double weight = 1.0 - surfaceColour.GetA 324 G4double weight = 1.0 - surfaceColour.GetAlpha(); 329 G4Colour mixedColour = GetMixedColour(rayC 325 G4Colour mixedColour = GetMixedColour(rayColour,surfaceColour,weight); 330 rayColour = Attenuate(trajectory->GetPoint 326 rayColour = Attenuate(trajectory->GetPointC(i),mixedColour); 331 } 327 } 332 328 333 return true; 329 return true; 334 } 330 } 335 331 336 G4Colour G4TheRayTracer::GetMixedColour 332 G4Colour G4TheRayTracer::GetMixedColour 337 (const G4Colour& surfCol,const G4Colour& trans 333 (const G4Colour& surfCol,const G4Colour& transCol,G4double weight) 338 { 334 { 339 G4double red = weight*surfCol.GetRed() + ( 335 G4double red = weight*surfCol.GetRed() + (1.-weight)*transCol.GetRed(); 340 G4double green = weight*surfCol.GetGreen() + 336 G4double green = weight*surfCol.GetGreen() + (1.-weight)*transCol.GetGreen(); 341 G4double blue = weight*surfCol.GetBlue() + 337 G4double blue = weight*surfCol.GetBlue() + (1.-weight)*transCol.GetBlue(); 342 G4double alpha = weight*surfCol.GetAlpha() + 338 G4double alpha = weight*surfCol.GetAlpha() + (1.-weight)*transCol.GetAlpha(); 343 return G4Colour(red,green,blue,alpha); 339 return G4Colour(red,green,blue,alpha); 344 } 340 } 345 341 346 G4Colour G4TheRayTracer::GetSurfaceColour(G4Ra 342 G4Colour G4TheRayTracer::GetSurfaceColour(G4RayTrajectoryPoint* point) 347 { 343 { 348 const G4VisAttributes* preAtt = point->GetPr 344 const G4VisAttributes* preAtt = point->GetPreStepAtt(); 349 const G4VisAttributes* postAtt = point->GetP 345 const G4VisAttributes* postAtt = point->GetPostStepAtt(); 350 346 351 G4bool preVis = ValidColour(preAtt); 347 G4bool preVis = ValidColour(preAtt); 352 G4bool postVis = ValidColour(postAtt); 348 G4bool postVis = ValidColour(postAtt); 353 349 354 G4Colour transparent(1.,1.,1.,0.); 350 G4Colour transparent(1.,1.,1.,0.); 355 351 356 if(!preVis&&!postVis) return transparent; 352 if(!preVis&&!postVis) return transparent; 357 353 358 G4ThreeVector normal = point->GetSurfaceNorm 354 G4ThreeVector normal = point->GetSurfaceNormal(); 359 355 360 G4Colour preCol(1.,1.,1.); 356 G4Colour preCol(1.,1.,1.); 361 G4Colour postCol(1.,1.,1.); 357 G4Colour postCol(1.,1.,1.); 362 358 363 if(preVis) 359 if(preVis) 364 { 360 { 365 const G4Colour& preAttColour = preAtt->Get 361 const G4Colour& preAttColour = preAtt->GetColour(); 366 G4double brill = (1.0-(-lightDirection).do 362 G4double brill = (1.0-(-lightDirection).dot(normal))/2.0; 367 G4double red = preAttColour.GetRed(); 363 G4double red = preAttColour.GetRed(); 368 G4double green = preAttColour.GetGreen(); 364 G4double green = preAttColour.GetGreen(); 369 G4double blue = preAttColour.GetBlue(); 365 G4double blue = preAttColour.GetBlue(); 370 preCol = G4Colour 366 preCol = G4Colour 371 (red*brill,green*brill,blue*brill,preAtt 367 (red*brill,green*brill,blue*brill,preAttColour.GetAlpha()); 372 } 368 } 373 else 369 else 374 { preCol = transparent; } 370 { preCol = transparent; } 375 371 376 if(postVis) 372 if(postVis) 377 { 373 { 378 const G4Colour& postAttColour = postAtt->G 374 const G4Colour& postAttColour = postAtt->GetColour(); 379 G4double brill = (1.0-(-lightDirection).do 375 G4double brill = (1.0-(-lightDirection).dot(-normal))/2.0; 380 G4double red = postAttColour.GetRed(); 376 G4double red = postAttColour.GetRed(); 381 G4double green = postAttColour.GetGreen(); 377 G4double green = postAttColour.GetGreen(); 382 G4double blue = postAttColour.GetBlue(); 378 G4double blue = postAttColour.GetBlue(); 383 postCol = G4Colour 379 postCol = G4Colour 384 (red*brill,green*brill,blue*brill,postAt 380 (red*brill,green*brill,blue*brill,postAttColour.GetAlpha()); 385 } 381 } 386 else 382 else 387 { postCol = transparent; } 383 { postCol = transparent; } 388 384 389 if(!preVis) return postCol; 385 if(!preVis) return postCol; 390 if(!postVis) return preCol; 386 if(!postVis) return preCol; 391 387 392 G4double weight = 0.5; 388 G4double weight = 0.5; 393 return GetMixedColour(preCol,postCol,weight) 389 return GetMixedColour(preCol,postCol,weight); 394 } 390 } 395 391 396 G4Colour G4TheRayTracer::Attenuate 392 G4Colour G4TheRayTracer::Attenuate 397 (G4RayTrajectoryPoint* point,const G4Colour& s 393 (G4RayTrajectoryPoint* point,const G4Colour& sourceCol) 398 { 394 { 399 const G4VisAttributes* preAtt = point->GetPr 395 const G4VisAttributes* preAtt = point->GetPreStepAtt(); 400 396 401 G4bool visible = ValidColour(preAtt); 397 G4bool visible = ValidColour(preAtt); 402 if(!visible) return sourceCol; 398 if(!visible) return sourceCol; 403 399 404 G4Colour objCol = preAtt->GetColour(); 400 G4Colour objCol = preAtt->GetColour(); 405 G4double stepRed = objCol.GetRed(); 401 G4double stepRed = objCol.GetRed(); 406 G4double stepGreen = objCol.GetGreen(); 402 G4double stepGreen = objCol.GetGreen(); 407 G4double stepBlue = objCol.GetBlue(); 403 G4double stepBlue = objCol.GetBlue(); 408 G4double stepAlpha = objCol.GetAlpha(); 404 G4double stepAlpha = objCol.GetAlpha(); 409 G4double stepLength = point->GetStepLength() 405 G4double stepLength = point->GetStepLength(); 410 406 411 G4double attenuationFuctor; 407 G4double attenuationFuctor; 412 if(stepAlpha > 0.9999999){ stepAlpha = 0.999 408 if(stepAlpha > 0.9999999){ stepAlpha = 0.9999999; } // patch to the next line 413 attenuationFuctor = -stepAlpha/(1.0-stepAl 409 attenuationFuctor = -stepAlpha/(1.0-stepAlpha)*stepLength/attenuationLength; 414 410 415 G4double KtRed = std::exp((1.0-stepRed)*atte 411 G4double KtRed = std::exp((1.0-stepRed)*attenuationFuctor); 416 G4double KtGreen = std::exp((1.0-stepGreen)* 412 G4double KtGreen = std::exp((1.0-stepGreen)*attenuationFuctor); 417 G4double KtBlue = std::exp((1.0-stepBlue)*at 413 G4double KtBlue = std::exp((1.0-stepBlue)*attenuationFuctor); 418 if(KtRed>1.0){KtRed=1.0;} 414 if(KtRed>1.0){KtRed=1.0;} 419 if(KtGreen>1.0){KtGreen=1.0;} 415 if(KtGreen>1.0){KtGreen=1.0;} 420 if(KtBlue>1.0){KtBlue=1.0;} 416 if(KtBlue>1.0){KtBlue=1.0;} 421 return G4Colour(sourceCol.GetRed()*KtRed, 417 return G4Colour(sourceCol.GetRed()*KtRed, 422 sourceCol.GetGreen()*KtGreen,sourceCol.Get 418 sourceCol.GetGreen()*KtGreen,sourceCol.GetBlue()*KtBlue); 423 } 419 } 424 420 425 G4bool G4TheRayTracer::ValidColour(const G4Vis 421 G4bool G4TheRayTracer::ValidColour(const G4VisAttributes* visAtt) 426 { 422 { 427 G4bool val = true; 423 G4bool val = true; 428 if(!visAtt) 424 if(!visAtt) 429 { val = false; } 425 { val = false; } 430 else if(!(visAtt->IsVisible())) 426 else if(!(visAtt->IsVisible())) 431 { val = false; } 427 { val = false; } 432 else if(visAtt->IsForceDrawingStyle() 428 else if(visAtt->IsForceDrawingStyle() 433 &&(visAtt->GetForcedDrawingStyle()==G4VisA 429 &&(visAtt->GetForcedDrawingStyle()==G4VisAttributes::wireframe)) 434 { val = false; } 430 { val = false; } 435 return val; 431 return val; 436 } 432 } 437 433 438 434