Geant4 Cross Reference |
1 // 1 2 // ******************************************* 3 // * License and Disclaimer 4 // * 5 // * The Geant4 software is copyright of th 6 // * the Geant4 Collaboration. It is provided 7 // * conditions of the Geant4 Software License 8 // * LICENSE and available at http://cern.ch/ 9 // * include a list of copyright holders. 10 // * 11 // * Neither the authors of this software syst 12 // * institutes,nor the agencies providing fin 13 // * work make any representation or warran 14 // * regarding this software system or assum 15 // * use. Please see the license in the file 16 // * for the full disclaimer and the limitatio 17 // * 18 // * This code implementation is the result 19 // * technical work of the GEANT4 collaboratio 20 // * By using, copying, modifying or distri 21 // * any work based on the software) you ag 22 // * use in resulting scientific publicati 23 // * acceptance of all terms of the Geant4 Sof 24 // ******************************************* 25 // 26 // 27 // 28 // 29 // 30 31 32 #include "G4TheRayTracer.hh" 33 #include "G4SystemOfUnits.hh" 34 #include "G4EventManager.hh" 35 #include "G4RTMessenger.hh" 36 #include "G4RayShooter.hh" 37 #include "G4VFigureFileMaker.hh" 38 #include "G4RTTrackingAction.hh" 39 #include "G4RTSteppingAction.hh" 40 #include "G4RayTrajectory.hh" 41 #include "G4RayTrajectoryPoint.hh" 42 #include "G4RTJpegMaker.hh" 43 #include "G4RTSimpleScanner.hh" 44 #include "G4GeometryManager.hh" 45 #include "G4SDManager.hh" 46 #include "G4StateManager.hh" 47 #include "G4Event.hh" 48 #include "G4TrajectoryContainer.hh" 49 #include "G4Colour.hh" 50 #include "G4VisAttributes.hh" 51 #include "G4UImanager.hh" 52 #include "G4TransportationManager.hh" 53 #include "G4RegionStore.hh" 54 #include "G4ProductionCutsTable.hh" 55 #include "G4VVisManager.hh" 56 57 #define G4warn G4cout 58 59 G4VFigureFileMaker * G4TheRayTracer::theFigMak 60 G4VRTScanner * G4TheRayTracer::theScanner = 0; 61 62 G4TheRayTracer::G4TheRayTracer(G4VFigureFileMa 63 G4VRTScanner* scanner) 64 { 65 theFigMaker = figMaker; 66 if(!theFigMaker) theFigMaker = new G4RTJpegM 67 theScanner = scanner; 68 if(!theScanner) theScanner = new G4RTSimpleS 69 theRayShooter = new G4RayShooter(); 70 theUserEventAction = 0; 71 theUserStackingAction = 0; 72 theUserTrackingAction = 0; 73 theUserSteppingAction = 0; 74 theRayTracerEventAction = 0; 75 theRayTracerStackingAction = 0; 76 theRayTracerTrackingAction = 0; 77 theRayTracerSteppingAction = 0; 78 colorR = 0; 79 colorG = 0; 80 colorB = 0; 81 82 theMessenger = G4RTMessenger::GetInstance(th 83 theEventManager = G4EventManager::GetEventMa 84 85 nColumn = 640; 86 nRow = 640; 87 88 eyePosition = G4ThreeVector(1.*m,1.*m,1.*m); 89 targetPosition = G4ThreeVector(0.,0.,0.); 90 lightDirection = G4ThreeVector(-0.1,-0.2,-0. 91 up = G4ThreeVector(0,1,0); 92 viewSpan = 5.0*deg; 93 headAngle = 0.; 94 attenuationLength = 1.0*m; 95 96 distortionOn = false; 97 antialiasingOn = false; 98 99 backgroundColour = G4Colour(1.,1.,1.); 100 } 101 102 G4TheRayTracer::~G4TheRayTracer() 103 { 104 delete theRayShooter; 105 if(theRayTracerTrackingAction) delete theRay 106 if(theRayTracerSteppingAction) delete theRay 107 delete theMessenger; 108 delete theScanner; 109 delete theFigMaker; 110 } 111 112 void G4TheRayTracer::Trace(const G4String& fil 113 { 114 G4StateManager* theStateMan = G4StateManager 115 G4ApplicationState currentState = theStateMa 116 if(currentState!=G4State_Idle) 117 { 118 G4warn << "Illegal application state - Tra 119 return; 120 } 121 122 if(!theFigMaker) 123 { 124 G4warn << "Figure file maker class is not 125 return; 126 } 127 128 G4UImanager* UI = G4UImanager::GetUIpointer( 129 G4int storeTrajectory = UI->GetCurrentIntVal 130 if(storeTrajectory==0) UI->ApplyCommand("/tr 131 132 133 G4ThreeVector tmpVec = targetPosition - eyeP 134 eyeDirection = tmpVec.unit(); 135 colorR = new unsigned char[nColumn*nRow]; 136 colorG = new unsigned char[nColumn*nRow]; 137 colorB = new unsigned char[nColumn*nRow]; 138 139 StoreUserActions(); 140 G4bool succeeded = CreateBitMap(); 141 if(succeeded) 142 { CreateFigureFile(fileName); } 143 else 144 { G4warn << "Could not create figure file" < 145 G4warn << "You might set the eye position 146 RestoreUserActions(); 147 148 if(storeTrajectory==0) UI->ApplyCommand("/tr 149 150 delete [] colorR; 151 delete [] colorG; 152 delete [] colorB; 153 } 154 155 void G4TheRayTracer::StoreUserActions() 156 { 157 theUserEventAction = theEventManager->GetUse 158 theUserStackingAction = theEventManager->Get 159 theUserTrackingAction = theEventManager->Get 160 theUserSteppingAction = theEventManager->Get 161 162 if(!theRayTracerTrackingAction) theRayTracer 163 if(!theRayTracerSteppingAction) theRayTracer 164 165 theEventManager->SetUserAction(theRayTracerE 166 theEventManager->SetUserAction(theRayTracerS 167 theEventManager->SetUserAction(theRayTracerT 168 theEventManager->SetUserAction(theRayTracerS 169 170 G4SDManager* theSDMan = G4SDManager::GetSDMp 171 if(theSDMan) 172 { theSDMan->Activate("/",false); } 173 174 G4GeometryManager* theGeomMan = G4GeometryMa 175 theGeomMan->OpenGeometry(); 176 theGeomMan->CloseGeometry(true); 177 } 178 179 void G4TheRayTracer::RestoreUserActions() 180 { 181 theEventManager->SetUserAction(theUserEventA 182 theEventManager->SetUserAction(theUserStacki 183 theEventManager->SetUserAction(theUserTracki 184 theEventManager->SetUserAction(theUserSteppi 185 186 G4SDManager* theSDMan = G4SDManager::GetSDMp 187 if(theSDMan) 188 { theSDMan->Activate("/",true); } 189 } 190 191 #include "G4ProcessManager.hh" 192 #include "G4ProcessVector.hh" 193 #include "G4Geantino.hh" 194 195 G4bool G4TheRayTracer::CreateBitMap() 196 { 197 G4int iEvent = 0; 198 G4double stepAngle = viewSpan/100.; 199 G4double viewSpanX = stepAngle*nColumn; 200 G4double viewSpanY = stepAngle*nRow; 201 G4bool succeeded; 202 203 G4VVisManager* visMan = G4VVisManager::GetCo 204 visMan->IgnoreStateChanges(true); 205 206 // Confirm process(es) of Geantino is initiali 207 G4VPhysicalVolume* pWorld = 208 G4TransportationManager::GetTransportationMa 209 GetNavigatorForTracking()->GetWorldVolume(); 210 G4RegionStore::GetInstance()->UpdateMaterial 211 G4ProductionCutsTable::GetProductionCutsTabl 212 G4ProcessVector* pVector 213 = G4Geantino::GeantinoDefinition()->GetPro 214 for (G4int j=0; j < (G4int)pVector->size(); 215 (*pVector)[j]->BuildPhysicsTable(*(G4Gea 216 } 217 218 // Close geometry and set the application stat 219 G4GeometryManager* geomManager = G4GeometryM 220 geomManager->OpenGeometry(); 221 geomManager->CloseGeometry(1,0); 222 223 G4ThreeVector center(0,0,0); 224 G4Navigator* navigator = 225 G4TransportationManager::GetTransportati 226 navigator->LocateGlobalPointAndSetup(center, 227 228 G4StateManager* theStateMan = G4StateManager 229 theStateMan->SetNewState(G4State_GeomClosed) 230 231 // Event loop 232 theScanner->Initialize(nRow,nColumn); 233 G4int iRow, iColumn; 234 while (theScanner->Coords(iRow,iColumn)) { 235 G4int iCoord = iRow * nColumn + iColumn; 236 G4double dRow = 0, dColumn = 0; // Anti 237 G4Event* anEvent = new G4Event(iEvent++) 238 G4double angleX = -(viewSpanX/2. - (iCol 239 G4double angleY = viewSpanY/2. - (iRow+d 240 G4ThreeVector rayDirection; 241 if(distortionOn) 242 { 243 rayDirection = G4ThreeVector(-std::tan(angle 244 } 245 else 246 { 247 rayDirection = G4ThreeVector(-std::tan(angle 248 } 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); 256 rayDirection.rotateUz(eyeDirection); 257 G4ThreeVector rayPosition(eyePosition); 258 G4bool interceptable = true; 259 // Check if rayPosition is in the world. 260 EInside whereisit = 261 pWorld->GetLogicalVolume()->GetSolid()->Insi 262 if (whereisit != kInside) { 263 // It's outside the world, so move it inside 264 G4double outsideDistance = 265 pWorld->GetLogicalVolume()->GetSolid()-> 266 DistanceToIn(rayPosition,rayDirection); 267 if (outsideDistance != kInfinity) { 268 // Borrowing from geometry, where 1e-8 < e 269 // absolute/internal length units, is used 270 // behaviour, choose to add 0.001 to ensur 271 // definitely inside the world volume (JA 272 rayPosition = rayPosition+(outsideDistance 273 } 274 else { 275 interceptable = false; 276 } 277 } 278 if (interceptable) { 279 theRayShooter->Shoot(anEvent,rayPosition,ray 280 theEventManager->ProcessOneEvent(anEvent); 281 succeeded = GenerateColour(anEvent); 282 colorR[iCoord] = (unsigned char)(G4int(255*r 283 colorG[iCoord] = (unsigned char)(G4int(255*r 284 colorB[iCoord] = (unsigned char)(G4int(255*r 285 } else { // Ray does not intercept worl 286 // Store background colour... 287 colorR[iCoord] = (unsigned char)(G4int(255*b 288 colorG[iCoord] = (unsigned char)(G4int(255*b 289 colorB[iCoord] = (unsigned char)(G4int(255*b 290 succeeded = true; 291 } 292 293 theScanner->Draw(colorR[iCoord],colorG[i 294 295 delete anEvent; 296 if(!succeeded) return false; 297 } 298 299 theStateMan->SetNewState(G4State_Idle); 300 visMan->IgnoreStateChanges(false); 301 return true; 302 } 303 304 void G4TheRayTracer::CreateFigureFile(const G4 305 { 306 //G4cout << nColumn << " " << nRow << G4endl 307 theFigMaker->CreateFigureFile(fileName,nColu 308 } 309 310 G4bool G4TheRayTracer::GenerateColour(G4Event* 311 { 312 G4TrajectoryContainer * trajectoryContainer 313 314 G4RayTrajectory* trajectory = (G4RayTrajecto 315 if(!trajectory) return false; 316 317 G4int nPoint = trajectory->GetPointEntries() 318 if(nPoint==0) return false; 319 320 G4Colour initialColour(backgroundColour); 321 if( trajectory->GetPointC(nPoint-1)->GetPost 322 { initialColour = GetSurfaceColour(trajector 323 rayColour = Attenuate(trajectory->GetPointC( 324 325 for(G4int i=nPoint-2;i>=0;--i) 326 { 327 G4Colour surfaceColour = GetSurfaceColour( 328 G4double weight = 1.0 - surfaceColour.GetA 329 G4Colour mixedColour = GetMixedColour(rayC 330 rayColour = Attenuate(trajectory->GetPoint 331 } 332 333 return true; 334 } 335 336 G4Colour G4TheRayTracer::GetMixedColour 337 (const G4Colour& surfCol,const G4Colour& trans 338 { 339 G4double red = weight*surfCol.GetRed() + ( 340 G4double green = weight*surfCol.GetGreen() + 341 G4double blue = weight*surfCol.GetBlue() + 342 G4double alpha = weight*surfCol.GetAlpha() + 343 return G4Colour(red,green,blue,alpha); 344 } 345 346 G4Colour G4TheRayTracer::GetSurfaceColour(G4Ra 347 { 348 const G4VisAttributes* preAtt = point->GetPr 349 const G4VisAttributes* postAtt = point->GetP 350 351 G4bool preVis = ValidColour(preAtt); 352 G4bool postVis = ValidColour(postAtt); 353 354 G4Colour transparent(1.,1.,1.,0.); 355 356 if(!preVis&&!postVis) return transparent; 357 358 G4ThreeVector normal = point->GetSurfaceNorm 359 360 G4Colour preCol(1.,1.,1.); 361 G4Colour postCol(1.,1.,1.); 362 363 if(preVis) 364 { 365 const G4Colour& preAttColour = preAtt->Get 366 G4double brill = (1.0-(-lightDirection).do 367 G4double red = preAttColour.GetRed(); 368 G4double green = preAttColour.GetGreen(); 369 G4double blue = preAttColour.GetBlue(); 370 preCol = G4Colour 371 (red*brill,green*brill,blue*brill,preAtt 372 } 373 else 374 { preCol = transparent; } 375 376 if(postVis) 377 { 378 const G4Colour& postAttColour = postAtt->G 379 G4double brill = (1.0-(-lightDirection).do 380 G4double red = postAttColour.GetRed(); 381 G4double green = postAttColour.GetGreen(); 382 G4double blue = postAttColour.GetBlue(); 383 postCol = G4Colour 384 (red*brill,green*brill,blue*brill,postAt 385 } 386 else 387 { postCol = transparent; } 388 389 if(!preVis) return postCol; 390 if(!postVis) return preCol; 391 392 G4double weight = 0.5; 393 return GetMixedColour(preCol,postCol,weight) 394 } 395 396 G4Colour G4TheRayTracer::Attenuate 397 (G4RayTrajectoryPoint* point,const G4Colour& s 398 { 399 const G4VisAttributes* preAtt = point->GetPr 400 401 G4bool visible = ValidColour(preAtt); 402 if(!visible) return sourceCol; 403 404 G4Colour objCol = preAtt->GetColour(); 405 G4double stepRed = objCol.GetRed(); 406 G4double stepGreen = objCol.GetGreen(); 407 G4double stepBlue = objCol.GetBlue(); 408 G4double stepAlpha = objCol.GetAlpha(); 409 G4double stepLength = point->GetStepLength() 410 411 G4double attenuationFuctor; 412 if(stepAlpha > 0.9999999){ stepAlpha = 0.999 413 attenuationFuctor = -stepAlpha/(1.0-stepAl 414 415 G4double KtRed = std::exp((1.0-stepRed)*atte 416 G4double KtGreen = std::exp((1.0-stepGreen)* 417 G4double KtBlue = std::exp((1.0-stepBlue)*at 418 if(KtRed>1.0){KtRed=1.0;} 419 if(KtGreen>1.0){KtGreen=1.0;} 420 if(KtBlue>1.0){KtBlue=1.0;} 421 return G4Colour(sourceCol.GetRed()*KtRed, 422 sourceCol.GetGreen()*KtGreen,sourceCol.Get 423 } 424 425 G4bool G4TheRayTracer::ValidColour(const G4Vis 426 { 427 G4bool val = true; 428 if(!visAtt) 429 { val = false; } 430 else if(!(visAtt->IsVisible())) 431 { val = false; } 432 else if(visAtt->IsForceDrawingStyle() 433 &&(visAtt->GetForcedDrawingStyle()==G4VisA 434 { val = false; } 435 return val; 436 } 437 438