Geant4 Cross Reference |
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 // 26 // >> 27 // $Id: G4TheRayTracer.cc,v 1.3 2006-06-29 21:24:25 gunter Exp $ >> 28 // GEANT4 tag $Name: geant4-09-04-patch-01 $ 27 // 29 // 28 // 30 // 29 // 31 // 30 32 31 33 32 #include "G4TheRayTracer.hh" 34 #include "G4TheRayTracer.hh" 33 #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 << 57 #define G4warn G4cout << 58 << 59 G4VFigureFileMaker * G4TheRayTracer::theFigMak << 60 G4VRTScanner * G4TheRayTracer::theScanner = 0; << 61 56 62 G4TheRayTracer::G4TheRayTracer(G4VFigureFileMa 57 G4TheRayTracer::G4TheRayTracer(G4VFigureFileMaker* figMaker, 63 G4VRTScanner* scanner) 58 G4VRTScanner* scanner) 64 { 59 { 65 theFigMaker = figMaker; 60 theFigMaker = figMaker; 66 if(!theFigMaker) theFigMaker = new G4RTJpegM 61 if(!theFigMaker) theFigMaker = new G4RTJpegMaker; 67 theScanner = scanner; 62 theScanner = scanner; 68 if(!theScanner) theScanner = new G4RTSimpleS 63 if(!theScanner) theScanner = new G4RTSimpleScanner; 69 theRayShooter = new G4RayShooter(); 64 theRayShooter = new G4RayShooter(); 70 theUserEventAction = 0; << 71 theUserStackingAction = 0; << 72 theUserTrackingAction = 0; << 73 theUserSteppingAction = 0; << 74 theRayTracerEventAction = 0; 65 theRayTracerEventAction = 0; 75 theRayTracerStackingAction = 0; 66 theRayTracerStackingAction = 0; 76 theRayTracerTrackingAction = 0; 67 theRayTracerTrackingAction = 0; 77 theRayTracerSteppingAction = 0; 68 theRayTracerSteppingAction = 0; 78 colorR = 0; << 69 theMessenger = G4RTMessenger::GetInstance(this,theRayTracerSteppingAction); 79 colorG = 0; << 80 colorB = 0; << 81 << 82 theMessenger = G4RTMessenger::GetInstance(th << 83 theEventManager = G4EventManager::GetEventMa 70 theEventManager = G4EventManager::GetEventManager(); 84 71 85 nColumn = 640; 72 nColumn = 640; 86 nRow = 640; 73 nRow = 640; 87 74 88 eyePosition = G4ThreeVector(1.*m,1.*m,1.*m); 75 eyePosition = G4ThreeVector(1.*m,1.*m,1.*m); 89 targetPosition = G4ThreeVector(0.,0.,0.); 76 targetPosition = G4ThreeVector(0.,0.,0.); 90 lightDirection = G4ThreeVector(-0.1,-0.2,-0. 77 lightDirection = G4ThreeVector(-0.1,-0.2,-0.3).unit(); 91 up = G4ThreeVector(0,1,0); << 92 viewSpan = 5.0*deg; 78 viewSpan = 5.0*deg; 93 headAngle = 0.; << 79 headAngle = 270.*deg; 94 attenuationLength = 1.0*m; 80 attenuationLength = 1.0*m; 95 81 96 distortionOn = false; 82 distortionOn = false; 97 antialiasingOn = false; 83 antialiasingOn = false; 98 84 99 backgroundColour = G4Colour(1.,1.,1.); 85 backgroundColour = G4Colour(1.,1.,1.); 100 } 86 } 101 87 102 G4TheRayTracer::~G4TheRayTracer() 88 G4TheRayTracer::~G4TheRayTracer() 103 { 89 { 104 delete theRayShooter; 90 delete theRayShooter; 105 if(theRayTracerTrackingAction) delete theRay 91 if(theRayTracerTrackingAction) delete theRayTracerTrackingAction; 106 if(theRayTracerSteppingAction) delete theRay 92 if(theRayTracerSteppingAction) delete theRayTracerSteppingAction; 107 delete theMessenger; 93 delete theMessenger; 108 delete theScanner; 94 delete theScanner; 109 delete theFigMaker; 95 delete theFigMaker; 110 } 96 } 111 97 112 void G4TheRayTracer::Trace(const G4String& fil << 98 void G4TheRayTracer::Trace(G4String fileName) 113 { 99 { 114 G4StateManager* theStateMan = G4StateManager 100 G4StateManager* theStateMan = G4StateManager::GetStateManager(); 115 G4ApplicationState currentState = theStateMa 101 G4ApplicationState currentState = theStateMan->GetCurrentState(); 116 if(currentState!=G4State_Idle) 102 if(currentState!=G4State_Idle) 117 { 103 { 118 G4warn << "Illegal application state - Tra << 104 G4cerr << "Illegal application state - Trace() ignored." << G4endl; 119 return; 105 return; 120 } 106 } 121 107 122 if(!theFigMaker) 108 if(!theFigMaker) 123 { 109 { 124 G4warn << "Figure file maker class is not << 110 G4cerr << "Figure file maker class is not specified - Trace() ignored." << G4endl; 125 return; 111 return; 126 } 112 } 127 113 128 G4UImanager* UI = G4UImanager::GetUIpointer( 114 G4UImanager* UI = G4UImanager::GetUIpointer(); 129 G4int storeTrajectory = UI->GetCurrentIntVal 115 G4int storeTrajectory = UI->GetCurrentIntValue("/tracking/storeTrajectory"); 130 if(storeTrajectory==0) UI->ApplyCommand("/tr 116 if(storeTrajectory==0) UI->ApplyCommand("/tracking/storeTrajectory 1"); 131 117 132 118 133 G4ThreeVector tmpVec = targetPosition - eyeP 119 G4ThreeVector tmpVec = targetPosition - eyePosition; 134 eyeDirection = tmpVec.unit(); 120 eyeDirection = tmpVec.unit(); 135 colorR = new unsigned char[nColumn*nRow]; 121 colorR = new unsigned char[nColumn*nRow]; 136 colorG = new unsigned char[nColumn*nRow]; 122 colorG = new unsigned char[nColumn*nRow]; 137 colorB = new unsigned char[nColumn*nRow]; 123 colorB = new unsigned char[nColumn*nRow]; 138 124 139 StoreUserActions(); 125 StoreUserActions(); 140 G4bool succeeded = CreateBitMap(); 126 G4bool succeeded = CreateBitMap(); 141 if(succeeded) 127 if(succeeded) 142 { CreateFigureFile(fileName); } 128 { CreateFigureFile(fileName); } 143 else 129 else 144 { G4warn << "Could not create figure file" < << 130 { G4cerr << "Could not create figure file" << G4endl; 145 G4warn << "You might set the eye position << 131 G4cerr << "You might set the eye position outside of the world volume" << G4endl; } 146 RestoreUserActions(); 132 RestoreUserActions(); 147 133 148 if(storeTrajectory==0) UI->ApplyCommand("/tr 134 if(storeTrajectory==0) UI->ApplyCommand("/tracking/storeTrajectory 0"); 149 135 150 delete [] colorR; 136 delete [] colorR; 151 delete [] colorG; 137 delete [] colorG; 152 delete [] colorB; 138 delete [] colorB; 153 } 139 } 154 140 155 void G4TheRayTracer::StoreUserActions() 141 void G4TheRayTracer::StoreUserActions() 156 { 142 { 157 theUserEventAction = theEventManager->GetUse 143 theUserEventAction = theEventManager->GetUserEventAction(); 158 theUserStackingAction = theEventManager->Get 144 theUserStackingAction = theEventManager->GetUserStackingAction(); 159 theUserTrackingAction = theEventManager->Get 145 theUserTrackingAction = theEventManager->GetUserTrackingAction(); 160 theUserSteppingAction = theEventManager->Get 146 theUserSteppingAction = theEventManager->GetUserSteppingAction(); 161 147 162 if(!theRayTracerTrackingAction) theRayTracer 148 if(!theRayTracerTrackingAction) theRayTracerTrackingAction = new G4RTTrackingAction(); 163 if(!theRayTracerSteppingAction) theRayTracer 149 if(!theRayTracerSteppingAction) theRayTracerSteppingAction = new G4RTSteppingAction(); 164 150 165 theEventManager->SetUserAction(theRayTracerE 151 theEventManager->SetUserAction(theRayTracerEventAction); 166 theEventManager->SetUserAction(theRayTracerS 152 theEventManager->SetUserAction(theRayTracerStackingAction); 167 theEventManager->SetUserAction(theRayTracerT 153 theEventManager->SetUserAction(theRayTracerTrackingAction); 168 theEventManager->SetUserAction(theRayTracerS 154 theEventManager->SetUserAction(theRayTracerSteppingAction); 169 155 170 G4SDManager* theSDMan = G4SDManager::GetSDMp 156 G4SDManager* theSDMan = G4SDManager::GetSDMpointerIfExist(); 171 if(theSDMan) 157 if(theSDMan) 172 { theSDMan->Activate("/",false); } 158 { theSDMan->Activate("/",false); } 173 159 174 G4GeometryManager* theGeomMan = G4GeometryMa 160 G4GeometryManager* theGeomMan = G4GeometryManager::GetInstance(); 175 theGeomMan->OpenGeometry(); 161 theGeomMan->OpenGeometry(); 176 theGeomMan->CloseGeometry(true); 162 theGeomMan->CloseGeometry(true); 177 } 163 } 178 164 179 void G4TheRayTracer::RestoreUserActions() 165 void G4TheRayTracer::RestoreUserActions() 180 { 166 { 181 theEventManager->SetUserAction(theUserEventA 167 theEventManager->SetUserAction(theUserEventAction); 182 theEventManager->SetUserAction(theUserStacki 168 theEventManager->SetUserAction(theUserStackingAction); 183 theEventManager->SetUserAction(theUserTracki 169 theEventManager->SetUserAction(theUserTrackingAction); 184 theEventManager->SetUserAction(theUserSteppi 170 theEventManager->SetUserAction(theUserSteppingAction); 185 171 186 G4SDManager* theSDMan = G4SDManager::GetSDMp 172 G4SDManager* theSDMan = G4SDManager::GetSDMpointerIfExist(); 187 if(theSDMan) 173 if(theSDMan) 188 { theSDMan->Activate("/",true); } 174 { theSDMan->Activate("/",true); } 189 } 175 } 190 176 191 #include "G4ProcessManager.hh" 177 #include "G4ProcessManager.hh" 192 #include "G4ProcessVector.hh" 178 #include "G4ProcessVector.hh" 193 #include "G4Geantino.hh" 179 #include "G4Geantino.hh" 194 180 195 G4bool G4TheRayTracer::CreateBitMap() 181 G4bool G4TheRayTracer::CreateBitMap() 196 { 182 { 197 G4int iEvent = 0; 183 G4int iEvent = 0; 198 G4double stepAngle = viewSpan/100.; 184 G4double stepAngle = viewSpan/100.; 199 G4double viewSpanX = stepAngle*nColumn; 185 G4double viewSpanX = stepAngle*nColumn; 200 G4double viewSpanY = stepAngle*nRow; 186 G4double viewSpanY = stepAngle*nRow; 201 G4bool succeeded; 187 G4bool succeeded; 202 188 203 G4VVisManager* visMan = G4VVisManager::GetCo << 204 visMan->IgnoreStateChanges(true); << 205 << 206 // Confirm process(es) of Geantino is initiali 189 // Confirm process(es) of Geantino is initialized 207 G4VPhysicalVolume* pWorld = 190 G4VPhysicalVolume* pWorld = 208 G4TransportationManager::GetTransportationMa 191 G4TransportationManager::GetTransportationManager()-> 209 GetNavigatorForTracking()->GetWorldVolume(); 192 GetNavigatorForTracking()->GetWorldVolume(); 210 G4RegionStore::GetInstance()->UpdateMaterial 193 G4RegionStore::GetInstance()->UpdateMaterialList(pWorld); 211 G4ProductionCutsTable::GetProductionCutsTabl 194 G4ProductionCutsTable::GetProductionCutsTable()->UpdateCoupleTable(pWorld); 212 G4ProcessVector* pVector 195 G4ProcessVector* pVector 213 = G4Geantino::GeantinoDefinition()->GetPro 196 = G4Geantino::GeantinoDefinition()->GetProcessManager()->GetProcessList(); 214 for (G4int j=0; j < (G4int)pVector->size(); << 197 for (G4int j=0; j < pVector->size(); ++j) { 215 (*pVector)[j]->BuildPhysicsTable(*(G4Gea 198 (*pVector)[j]->BuildPhysicsTable(*(G4Geantino::GeantinoDefinition())); 216 } 199 } 217 200 218 // Close geometry and set the application stat 201 // Close geometry and set the application state 219 G4GeometryManager* geomManager = G4GeometryM 202 G4GeometryManager* geomManager = G4GeometryManager::GetInstance(); 220 geomManager->OpenGeometry(); 203 geomManager->OpenGeometry(); 221 geomManager->CloseGeometry(1,0); 204 geomManager->CloseGeometry(1,0); 222 205 223 G4ThreeVector center(0,0,0); 206 G4ThreeVector center(0,0,0); 224 G4Navigator* navigator = 207 G4Navigator* navigator = 225 G4TransportationManager::GetTransportati 208 G4TransportationManager::GetTransportationManager()->GetNavigatorForTracking(); 226 navigator->LocateGlobalPointAndSetup(center, 209 navigator->LocateGlobalPointAndSetup(center,0,false); 227 210 228 G4StateManager* theStateMan = G4StateManager 211 G4StateManager* theStateMan = G4StateManager::GetStateManager(); 229 theStateMan->SetNewState(G4State_GeomClosed) 212 theStateMan->SetNewState(G4State_GeomClosed); 230 213 231 // Event loop 214 // Event loop 232 theScanner->Initialize(nRow,nColumn); 215 theScanner->Initialize(nRow,nColumn); 233 G4int iRow, iColumn; 216 G4int iRow, iColumn; 234 while (theScanner->Coords(iRow,iColumn)) { 217 while (theScanner->Coords(iRow,iColumn)) { 235 G4int iCoord = iRow * nColumn + iColumn; 218 G4int iCoord = iRow * nColumn + iColumn; 236 G4double dRow = 0, dColumn = 0; // Anti 219 G4double dRow = 0, dColumn = 0; // Antialiasing increments. 237 G4Event* anEvent = new G4Event(iEvent++) 220 G4Event* anEvent = new G4Event(iEvent++); 238 G4double angleX = -(viewSpanX/2. - (iCol 221 G4double angleX = -(viewSpanX/2. - (iColumn+dColumn)*stepAngle); 239 G4double angleY = viewSpanY/2. - (iRow+d 222 G4double angleY = viewSpanY/2. - (iRow+dRow)*stepAngle; 240 G4ThreeVector rayDirection; 223 G4ThreeVector rayDirection; 241 if(distortionOn) 224 if(distortionOn) 242 { 225 { 243 rayDirection = G4ThreeVector(-std::tan(angle << 226 rayDirection = G4ThreeVector(std::tan(angleX)/std::cos(angleY),-std::tan(angleY)/std::cos(angleX),1.0); 244 } 227 } 245 else 228 else 246 { 229 { 247 rayDirection = G4ThreeVector(-std::tan(angle << 230 rayDirection = G4ThreeVector(std::tan(angleX),-std::tan(angleY),1.0); 248 } 231 } 249 G4double cp = std::cos(eyeDirection.phi( << 250 G4double sp = std::sqrt(1.-cp*cp); << 251 G4double ct = std::cos(eyeDirection.thet << 252 G4double st = std::sqrt(1.-ct*ct); << 253 G4double gamma = std::atan2(ct*cp*up.x() << 254 rayDirection.rotateZ(-gamma); << 255 rayDirection.rotateZ(headAngle); 232 rayDirection.rotateZ(headAngle); 256 rayDirection.rotateUz(eyeDirection); 233 rayDirection.rotateUz(eyeDirection); 257 G4ThreeVector rayPosition(eyePosition); 234 G4ThreeVector rayPosition(eyePosition); 258 G4bool interceptable = true; 235 G4bool interceptable = true; 259 // Check if rayPosition is in the world. 236 // Check if rayPosition is in the world. 260 EInside whereisit = 237 EInside whereisit = 261 pWorld->GetLogicalVolume()->GetSolid()->Insi 238 pWorld->GetLogicalVolume()->GetSolid()->Inside(rayPosition); 262 if (whereisit != kInside) { 239 if (whereisit != kInside) { 263 // It's outside the world, so move it inside 240 // It's outside the world, so move it inside. 264 G4double outsideDistance = 241 G4double outsideDistance = 265 pWorld->GetLogicalVolume()->GetSolid()-> 242 pWorld->GetLogicalVolume()->GetSolid()-> 266 DistanceToIn(rayPosition,rayDirection); 243 DistanceToIn(rayPosition,rayDirection); 267 if (outsideDistance != kInfinity) { 244 if (outsideDistance != kInfinity) { 268 // Borrowing from geometry, where 1e-8 < e 245 // Borrowing from geometry, where 1e-8 < epsilon < 1e-3, in 269 // absolute/internal length units, is used 246 // absolute/internal length units, is used for ensuring good 270 // behaviour, choose to add 0.001 to ensur 247 // behaviour, choose to add 0.001 to ensure rayPosition is 271 // definitely inside the world volume (JA 248 // definitely inside the world volume (JA 16/9/2005)... 272 rayPosition = rayPosition+(outsideDistance 249 rayPosition = rayPosition+(outsideDistance+0.001)*rayDirection; 273 } 250 } 274 else { 251 else { 275 interceptable = false; 252 interceptable = false; 276 } 253 } 277 } 254 } 278 if (interceptable) { 255 if (interceptable) { 279 theRayShooter->Shoot(anEvent,rayPosition,ray << 256 theRayShooter->Shoot(anEvent,rayPosition,rayDirection); 280 theEventManager->ProcessOneEvent(anEvent); 257 theEventManager->ProcessOneEvent(anEvent); 281 succeeded = GenerateColour(anEvent); 258 succeeded = GenerateColour(anEvent); 282 colorR[iCoord] = (unsigned char)(G4int(255*r << 259 colorR[iCoord] = (unsigned char)(int(255*rayColour.GetRed())); 283 colorG[iCoord] = (unsigned char)(G4int(255*r << 260 colorG[iCoord] = (unsigned char)(int(255*rayColour.GetGreen())); 284 colorB[iCoord] = (unsigned char)(G4int(255*r << 261 colorB[iCoord] = (unsigned char)(int(255*rayColour.GetBlue())); 285 } else { // Ray does not intercept worl 262 } else { // Ray does not intercept world at all. 286 // Store background colour... 263 // Store background colour... 287 colorR[iCoord] = (unsigned char)(G4int(255*b << 264 colorR[iCoord] = (unsigned char)(int(255*backgroundColour.GetRed())); 288 colorG[iCoord] = (unsigned char)(G4int(255*b << 265 colorG[iCoord] = (unsigned char)(int(255*backgroundColour.GetGreen())); 289 colorB[iCoord] = (unsigned char)(G4int(255*b << 266 colorB[iCoord] = (unsigned char)(int(255*backgroundColour.GetBlue())); 290 succeeded = true; 267 succeeded = true; 291 } 268 } 292 269 293 theScanner->Draw(colorR[iCoord],colorG[i 270 theScanner->Draw(colorR[iCoord],colorG[iCoord],colorB[iCoord]); 294 271 295 delete anEvent; 272 delete anEvent; 296 if(!succeeded) return false; 273 if(!succeeded) return false; 297 } 274 } 298 275 299 theStateMan->SetNewState(G4State_Idle); 276 theStateMan->SetNewState(G4State_Idle); 300 visMan->IgnoreStateChanges(false); << 301 return true; 277 return true; 302 } 278 } 303 279 304 void G4TheRayTracer::CreateFigureFile(const G4 << 280 void G4TheRayTracer::CreateFigureFile(G4String fileName) 305 { 281 { 306 //G4cout << nColumn << " " << nRow << G4endl 282 //G4cout << nColumn << " " << nRow << G4endl; 307 theFigMaker->CreateFigureFile(fileName,nColu 283 theFigMaker->CreateFigureFile(fileName,nColumn,nRow,colorR,colorG,colorB); 308 } 284 } 309 285 310 G4bool G4TheRayTracer::GenerateColour(G4Event* 286 G4bool G4TheRayTracer::GenerateColour(G4Event* anEvent) 311 { 287 { 312 G4TrajectoryContainer * trajectoryContainer 288 G4TrajectoryContainer * trajectoryContainer = anEvent->GetTrajectoryContainer(); 313 289 314 G4RayTrajectory* trajectory = (G4RayTrajecto 290 G4RayTrajectory* trajectory = (G4RayTrajectory*)( (*trajectoryContainer)[0] ); 315 if(!trajectory) return false; 291 if(!trajectory) return false; 316 292 317 G4int nPoint = trajectory->GetPointEntries() 293 G4int nPoint = trajectory->GetPointEntries(); 318 if(nPoint==0) return false; 294 if(nPoint==0) return false; 319 295 320 G4Colour initialColour(backgroundColour); 296 G4Colour initialColour(backgroundColour); 321 if( trajectory->GetPointC(nPoint-1)->GetPost 297 if( trajectory->GetPointC(nPoint-1)->GetPostStepAtt() ) 322 { initialColour = GetSurfaceColour(trajector 298 { initialColour = GetSurfaceColour(trajectory->GetPointC(nPoint-1)); } 323 rayColour = Attenuate(trajectory->GetPointC( 299 rayColour = Attenuate(trajectory->GetPointC(nPoint-1),initialColour); 324 300 325 for(G4int i=nPoint-2;i>=0;--i) << 301 for(int i=nPoint-2;i>=0;i--) 326 { 302 { 327 G4Colour surfaceColour = GetSurfaceColour( 303 G4Colour surfaceColour = GetSurfaceColour(trajectory->GetPointC(i)); 328 G4double weight = 1.0 - surfaceColour.GetA 304 G4double weight = 1.0 - surfaceColour.GetAlpha(); 329 G4Colour mixedColour = GetMixedColour(rayC 305 G4Colour mixedColour = GetMixedColour(rayColour,surfaceColour,weight); 330 rayColour = Attenuate(trajectory->GetPoint 306 rayColour = Attenuate(trajectory->GetPointC(i),mixedColour); 331 } 307 } 332 308 333 return true; 309 return true; 334 } 310 } 335 311 336 G4Colour G4TheRayTracer::GetMixedColour << 312 G4Colour G4TheRayTracer::GetMixedColour(G4Colour surfCol,G4Colour transCol,G4double weight) 337 (const G4Colour& surfCol,const G4Colour& trans << 338 { 313 { 339 G4double red = weight*surfCol.GetRed() + ( << 314 G4double r = weight*surfCol.GetRed() + (1.-weight)*transCol.GetRed(); 340 G4double green = weight*surfCol.GetGreen() + << 315 G4double g = weight*surfCol.GetGreen() + (1.-weight)*transCol.GetGreen(); 341 G4double blue = weight*surfCol.GetBlue() + << 316 G4double b = weight*surfCol.GetBlue() + (1.-weight)*transCol.GetBlue(); 342 G4double alpha = weight*surfCol.GetAlpha() + << 317 G4double a = weight*surfCol.GetAlpha() + (1.-weight)*transCol.GetAlpha(); 343 return G4Colour(red,green,blue,alpha); << 318 return G4Colour(r,g,b,a); 344 } 319 } 345 320 346 G4Colour G4TheRayTracer::GetSurfaceColour(G4Ra 321 G4Colour G4TheRayTracer::GetSurfaceColour(G4RayTrajectoryPoint* point) 347 { 322 { 348 const G4VisAttributes* preAtt = point->GetPr 323 const G4VisAttributes* preAtt = point->GetPreStepAtt(); 349 const G4VisAttributes* postAtt = point->GetP 324 const G4VisAttributes* postAtt = point->GetPostStepAtt(); 350 325 351 G4bool preVis = ValidColour(preAtt); 326 G4bool preVis = ValidColour(preAtt); 352 G4bool postVis = ValidColour(postAtt); 327 G4bool postVis = ValidColour(postAtt); 353 328 354 G4Colour transparent(1.,1.,1.,0.); 329 G4Colour transparent(1.,1.,1.,0.); 355 330 356 if(!preVis&&!postVis) return transparent; 331 if(!preVis&&!postVis) return transparent; 357 332 358 G4ThreeVector normal = point->GetSurfaceNorm 333 G4ThreeVector normal = point->GetSurfaceNormal(); 359 334 360 G4Colour preCol(1.,1.,1.); 335 G4Colour preCol(1.,1.,1.); 361 G4Colour postCol(1.,1.,1.); 336 G4Colour postCol(1.,1.,1.); 362 337 363 if(preVis) 338 if(preVis) 364 { 339 { 365 const G4Colour& preAttColour = preAtt->Get << 366 G4double brill = (1.0-(-lightDirection).do 340 G4double brill = (1.0-(-lightDirection).dot(normal))/2.0; 367 G4double red = preAttColour.GetRed(); << 341 G4double r = preAtt->GetColour().GetRed(); 368 G4double green = preAttColour.GetGreen(); << 342 G4double g = preAtt->GetColour().GetGreen(); 369 G4double blue = preAttColour.GetBlue(); << 343 G4double b = preAtt->GetColour().GetBlue(); 370 preCol = G4Colour << 344 preCol = G4Colour(r*brill,g*brill,b*brill,preAtt->GetColour().GetAlpha()); 371 (red*brill,green*brill,blue*brill,preAtt << 372 } 345 } 373 else 346 else 374 { preCol = transparent; } 347 { preCol = transparent; } 375 348 376 if(postVis) 349 if(postVis) 377 { 350 { 378 const G4Colour& postAttColour = postAtt->G << 379 G4double brill = (1.0-(-lightDirection).do 351 G4double brill = (1.0-(-lightDirection).dot(-normal))/2.0; 380 G4double red = postAttColour.GetRed(); << 352 G4double r = postAtt->GetColour().GetRed(); 381 G4double green = postAttColour.GetGreen(); << 353 G4double g = postAtt->GetColour().GetGreen(); 382 G4double blue = postAttColour.GetBlue(); << 354 G4double b = postAtt->GetColour().GetBlue(); 383 postCol = G4Colour << 355 postCol = G4Colour(r*brill,g*brill,b*brill,postAtt->GetColour().GetAlpha()); 384 (red*brill,green*brill,blue*brill,postAt << 385 } 356 } 386 else 357 else 387 { postCol = transparent; } 358 { postCol = transparent; } 388 359 389 if(!preVis) return postCol; 360 if(!preVis) return postCol; 390 if(!postVis) return preCol; 361 if(!postVis) return preCol; 391 362 392 G4double weight = 0.5; 363 G4double weight = 0.5; 393 return GetMixedColour(preCol,postCol,weight) 364 return GetMixedColour(preCol,postCol,weight); 394 } 365 } 395 366 396 G4Colour G4TheRayTracer::Attenuate << 367 G4Colour G4TheRayTracer::Attenuate(G4RayTrajectoryPoint* point, G4Colour sourceCol) 397 (G4RayTrajectoryPoint* point,const G4Colour& s << 398 { 368 { 399 const G4VisAttributes* preAtt = point->GetPr 369 const G4VisAttributes* preAtt = point->GetPreStepAtt(); 400 370 401 G4bool visible = ValidColour(preAtt); 371 G4bool visible = ValidColour(preAtt); 402 if(!visible) return sourceCol; 372 if(!visible) return sourceCol; 403 373 404 G4Colour objCol = preAtt->GetColour(); 374 G4Colour objCol = preAtt->GetColour(); 405 G4double stepRed = objCol.GetRed(); 375 G4double stepRed = objCol.GetRed(); 406 G4double stepGreen = objCol.GetGreen(); 376 G4double stepGreen = objCol.GetGreen(); 407 G4double stepBlue = objCol.GetBlue(); 377 G4double stepBlue = objCol.GetBlue(); 408 G4double stepAlpha = objCol.GetAlpha(); 378 G4double stepAlpha = objCol.GetAlpha(); 409 G4double stepLength = point->GetStepLength() 379 G4double stepLength = point->GetStepLength(); 410 380 411 G4double attenuationFuctor; 381 G4double attenuationFuctor; 412 if(stepAlpha > 0.9999999){ stepAlpha = 0.999 382 if(stepAlpha > 0.9999999){ stepAlpha = 0.9999999; } // patch to the next line 413 attenuationFuctor = -stepAlpha/(1.0-stepAl 383 attenuationFuctor = -stepAlpha/(1.0-stepAlpha)*stepLength/attenuationLength; 414 384 415 G4double KtRed = std::exp((1.0-stepRed)*atte 385 G4double KtRed = std::exp((1.0-stepRed)*attenuationFuctor); 416 G4double KtGreen = std::exp((1.0-stepGreen)* 386 G4double KtGreen = std::exp((1.0-stepGreen)*attenuationFuctor); 417 G4double KtBlue = std::exp((1.0-stepBlue)*at 387 G4double KtBlue = std::exp((1.0-stepBlue)*attenuationFuctor); 418 if(KtRed>1.0){KtRed=1.0;} 388 if(KtRed>1.0){KtRed=1.0;} 419 if(KtGreen>1.0){KtGreen=1.0;} 389 if(KtGreen>1.0){KtGreen=1.0;} 420 if(KtBlue>1.0){KtBlue=1.0;} 390 if(KtBlue>1.0){KtBlue=1.0;} 421 return G4Colour(sourceCol.GetRed()*KtRed, 391 return G4Colour(sourceCol.GetRed()*KtRed, 422 sourceCol.GetGreen()*KtGreen,sourceCol.Get 392 sourceCol.GetGreen()*KtGreen,sourceCol.GetBlue()*KtBlue); 423 } 393 } 424 394 425 G4bool G4TheRayTracer::ValidColour(const G4Vis 395 G4bool G4TheRayTracer::ValidColour(const G4VisAttributes* visAtt) 426 { 396 { 427 G4bool val = true; 397 G4bool val = true; 428 if(!visAtt) 398 if(!visAtt) 429 { val = false; } 399 { val = false; } 430 else if(!(visAtt->IsVisible())) 400 else if(!(visAtt->IsVisible())) 431 { val = false; } 401 { val = false; } 432 else if(visAtt->IsForceDrawingStyle() 402 else if(visAtt->IsForceDrawingStyle() 433 &&(visAtt->GetForcedDrawingStyle()==G4VisA 403 &&(visAtt->GetForcedDrawingStyle()==G4VisAttributes::wireframe)) 434 { val = false; } 404 { val = false; } 435 return val; 405 return val; 436 } 406 } 437 407 438 408