Gabriele Cosmo
176 lines
6.4 KiB
Plaintext
176 lines
6.4 KiB
Plaintext
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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// Class G4VoxelNavigation inline methods implementation
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//
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// Author: Paul Kent (CERN), August 1996
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// --------------------------------------------------------------------
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// ********************************************************************
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// VoxelLocate
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// ********************************************************************
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//
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inline
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G4SmartVoxelNode*
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G4VoxelNavigation::VoxelLocate( G4SmartVoxelHeader* pHead,
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const G4ThreeVector& localPoint )
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{
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G4SmartVoxelHeader* targetVoxelHeader = pHead;
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G4SmartVoxelNode* targetVoxelNode = nullptr;
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G4SmartVoxelProxy* sampleProxy;
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EAxis targetHeaderAxis;
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G4double targetHeaderMin, targetHeaderNodeWidth;
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G4int targetHeaderNoSlices, targetNodeNo;
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fVoxelDepth = 0;
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while ( targetVoxelNode == nullptr )
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{
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targetHeaderAxis = targetVoxelHeader->GetAxis();
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targetHeaderNoSlices = G4int(targetVoxelHeader->GetNoSlices());
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targetHeaderMin = targetVoxelHeader->GetMinExtent();
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targetHeaderNodeWidth = (targetVoxelHeader->GetMaxExtent()-targetHeaderMin)
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/ targetHeaderNoSlices;
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targetNodeNo = G4int( (localPoint(targetHeaderAxis)-targetHeaderMin)
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/ targetHeaderNodeWidth);
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// Rounding protection
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//
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if ( targetNodeNo<0 )
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{
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targetNodeNo = 0;
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}
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else if ( targetNodeNo>=targetHeaderNoSlices )
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{
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targetNodeNo = targetHeaderNoSlices-1;
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}
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// Stack info for stepping
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//
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fVoxelAxisStack[fVoxelDepth] = targetHeaderAxis;
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fVoxelNoSlicesStack[fVoxelDepth] = targetHeaderNoSlices;
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fVoxelSliceWidthStack[fVoxelDepth] = targetHeaderNodeWidth;
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fVoxelNodeNoStack[fVoxelDepth] = targetNodeNo;
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fVoxelHeaderStack[fVoxelDepth] = targetVoxelHeader;
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sampleProxy = targetVoxelHeader->GetSlice(targetNodeNo);
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if ( sampleProxy->IsNode() )
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{
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targetVoxelNode = sampleProxy->GetNode();
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}
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else
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{
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targetVoxelHeader = sampleProxy->GetHeader();
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++fVoxelDepth;
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}
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}
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fVoxelNode = targetVoxelNode;
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return targetVoxelNode;
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}
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// ********************************************************************
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// LevelLocate
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// ********************************************************************
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//
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inline
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G4bool
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G4VoxelNavigation::LevelLocate( G4NavigationHistory& history,
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const G4VPhysicalVolume* blockedVol,
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const G4int,
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const G4ThreeVector& globalPoint,
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const G4ThreeVector* globalDirection,
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const G4bool pLocatedOnEdge,
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G4ThreeVector& localPoint )
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{
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G4SmartVoxelHeader *targetVoxelHeader;
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G4SmartVoxelNode *targetVoxelNode;
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G4VPhysicalVolume *targetPhysical, *samplePhysical;
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G4LogicalVolume *targetLogical;
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G4VSolid *sampleSolid;
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G4ThreeVector samplePoint;
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G4int targetNoDaughters;
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targetPhysical = history.GetTopVolume();
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targetLogical = targetPhysical->GetLogicalVolume();
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targetVoxelHeader = targetLogical->GetVoxelHeader();
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// Find the voxel containing the point
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//
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targetVoxelNode = VoxelLocate(targetVoxelHeader,localPoint);
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targetNoDaughters = G4int(targetVoxelNode->GetNoContained());
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if ( targetNoDaughters==0 ) { return false; }
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//
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// Search daughters in volume
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//
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for ( auto sampleNo=targetNoDaughters-1; sampleNo>=0; sampleNo-- )
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{
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samplePhysical = targetLogical->
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GetDaughter(targetVoxelNode->GetVolume(sampleNo));
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if ( samplePhysical!=blockedVol )
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{
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// Setup history
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//
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history.NewLevel(samplePhysical, kNormal, samplePhysical->GetCopyNo());
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sampleSolid = samplePhysical->GetLogicalVolume()->GetSolid();
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samplePoint = history.GetTopTransform().TransformPoint(globalPoint);
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if( G4AuxiliaryNavServices::CheckPointOnSurface(sampleSolid,
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samplePoint,
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globalDirection,
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history.GetTopTransform(),
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pLocatedOnEdge) )
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{
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// Enter this daughter
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//
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localPoint = samplePoint;
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return true;
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}
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history.BackLevel();
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}
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}
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return false;
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}
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// ********************************************************************
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// GetVerboseLevel
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// ********************************************************************
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//
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inline
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G4int G4VoxelNavigation::GetVerboseLevel() const
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{
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return fLogger->GetVerboseLevel();
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}
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// ********************************************************************
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// EnableBestSafety
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// ********************************************************************
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//
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inline
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void G4VoxelNavigation::EnableBestSafety(G4bool flag)
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{
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fBestSafety = flag;
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}
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