Gabriele Cosmo
137 lines
4.8 KiB
Plaintext
137 lines
4.8 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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//
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// $Id: G4AuxiliaryNavServices.icc,v 1.4 2007/05/22 07:48:08 gcosmo Exp $
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// GEANT4 tag $Name: geant4-09-01 $
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//
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//
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// class G4AuxiliaryNavServices Inline implementation
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//
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// --------------------------------------------------------------------
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inline G4bool
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G4AuxiliaryNavServices::
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CheckPointOnSurface( const G4VSolid* sampleSolid,
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const G4ThreeVector& localPoint,
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const G4ThreeVector* globalDirection,
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const G4AffineTransform& sampleTransform,
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const G4bool locatedOnEdge)
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{
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G4ThreeVector localDirection, sampleNormal;
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G4bool enter = false;
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EInside insideSolid = sampleSolid->Inside(localPoint);
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if ( insideSolid!=kOutside )
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{
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G4bool checkDirection= locatedOnEdge && (globalDirection!=0);
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if( (insideSolid==kSurface) && checkDirection)
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{
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// We are probably located on an edge.
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//
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localDirection= sampleTransform.TransformAxis(*globalDirection);
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// Check whether we enter the volume
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//
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sampleNormal = sampleSolid->SurfaceNormal(localPoint);
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if ( sampleNormal.dot(localDirection) <= 0 )
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{
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if( sampleNormal.dot(localDirection) == 0 )
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{
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// We can't decide yet, let's make sure we're entering the solid.
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// If by a confusion we entered the next solid we find out now
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// whether to leave or to enter.
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// This happens when we're on the surface or edge shared by two
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// solids
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//
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G4double distanceToIn =
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sampleSolid->DistanceToIn( localPoint, localDirection );
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if( distanceToIn != kInfinity )
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{
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enter = true;
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}
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}
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else
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{
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enter = true;
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}
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}
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}
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else
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{
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enter = true;
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}
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}
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return enter;
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}
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// --------------------------------------------------------------------
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inline G4bool
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G4AuxiliaryNavServices::
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CheckPointExiting( const G4VSolid* sampleSolid,
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const G4ThreeVector& localPoint,
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const G4ThreeVector* globalDirection,
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const G4AffineTransform& sampleTransform )
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{
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if( !globalDirection ) { return false; }
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G4ThreeVector localDirection, sampleNormal;
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G4bool exiting = false;
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EInside insideSolid = sampleSolid->Inside(localPoint);
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if( (insideSolid==kSurface) )
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{
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localDirection= sampleTransform.TransformAxis(*globalDirection);
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// Check whether we are exiting the volume
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//
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sampleNormal = sampleSolid->SurfaceNormal(localPoint);
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if ( sampleNormal.dot(localDirection) >= 0 )
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{
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if( sampleNormal.dot(localDirection) == 0 )
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{
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// We can't decide yet, let's make sure we're entering the solid.
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// If by a confusion we entered the next solid we find out now
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// whether to leave or to exiting.
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// This happens when we're on the surface or edge shared by two
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// solids
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//
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G4double distanceToIn =
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sampleSolid->DistanceToIn( localPoint, localDirection );
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if( distanceToIn != kInfinity )
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{
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exiting = true;
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}
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}
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else
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{
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exiting = true;
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}
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}
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}
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return exiting;
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}
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