Gabriele Cosmo
119 lines
3.9 KiB
Plaintext
119 lines
3.9 KiB
Plaintext
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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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. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: G4NormalNavigation.icc,v 1.3.4.1 2001/06/28 19:09:40 gunter Exp $
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// GEANT4 tag $Name: $
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//
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//
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// G4NormalNavigation Inline Implementation
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inline G4bool G4NormalNavigation::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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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,sampleNo;
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targetPhysical=history.GetTopVolume();
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targetLogical=targetPhysical->GetLogicalVolume();
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targetNoDaughters=targetLogical->GetNoDaughters();
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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 (sampleNo=targetNoDaughters-1;sampleNo>=0;sampleNo--)
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{
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samplePhysical=targetLogical->GetDaughter(sampleNo);
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if (samplePhysical!=blockedVol)
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{
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// Setup volume with mother ptr
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samplePhysical->Setup(targetPhysical);
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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 1
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if( G4AuxiliaryNavServices::
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CheckPointOnSurface(sampleSolid, samplePoint, globalDirection,
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history.GetTopTransform(), pLocatedOnEdge)
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)
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{
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// Enter this daughter
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// blockedVol=0;
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localPoint=samplePoint;
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return true;
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}
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else
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{
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history.BackLevel();
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}
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#else
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EInside sampleInside = sampleSolid->Inside(samplePoint);
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if( sampleInside == kOutside)
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{
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history.BackLevel();
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}
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else
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{
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if( !pLocatedOnEdge )
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{
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// Enter this daughter
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// blockedVol=0;
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localPoint=samplePoint;
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return true;
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}
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else
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{
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// We are probably located on an edge.
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sampleDirection= history.GetTopTransform()
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.TransformAxis(globalDirection);
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// Check whether we enter the volume
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//
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sampleNormal= sampleSolid->SurfaceNormal(samplePoint);
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if ( sampleNormal.dot(sampleDirection) <= 0 )
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{
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// Enter this daughter
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// blockedVol=0;
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localPoint=samplePoint;
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return true;
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}
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}
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}
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#endif
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}
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}
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return false;
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}
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