[831] | 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 4 | // * * |
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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| 7 | // * conditions of the Geant4 Software License, included in the file * |
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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| 9 | // * include a list of copyright holders. * |
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| 10 | // * * |
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| 11 | // * Neither the authors of this software system, nor their employing * |
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| 12 | // * institutes,nor the agencies providing financial support for this * |
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| 13 | // * work make any representation or warranty, express or implied, * |
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| 14 | // * regarding this software system or assume any liability for its * |
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| 15 | // * use. Please see the license in the file LICENSE and URL above * |
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| 16 | // * for the full disclaimer and the limitation of liability. * |
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| 17 | // * * |
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| 18 | // * This code implementation is the result of the scientific and * |
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| 19 | // * technical work of the GEANT4 collaboration. * |
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| 20 | // * By using, copying, modifying or distributing the software (or * |
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| 21 | // * any work based on the software) you agree to acknowledge its * |
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| 22 | // * use in resulting scientific publications, and indicate your * |
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| 23 | // * acceptance of all terms of the Geant4 Software license. * |
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| 24 | // ******************************************************************** |
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| 25 | // |
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| 26 | // |
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| 27 | // $Id: G4AuxiliaryNavServices.icc,v 1.4 2007/05/22 07:48:08 gcosmo Exp $ |
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[1337] | 28 | // GEANT4 tag $Name: geant4-09-04-beta-01 $ |
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[831] | 29 | // |
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| 30 | // |
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| 31 | // class G4AuxiliaryNavServices Inline implementation |
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| 32 | // |
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| 33 | // -------------------------------------------------------------------- |
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| 34 | |
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| 35 | inline G4bool |
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| 36 | G4AuxiliaryNavServices:: |
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| 37 | CheckPointOnSurface( const G4VSolid* sampleSolid, |
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| 38 | const G4ThreeVector& localPoint, |
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| 39 | const G4ThreeVector* globalDirection, |
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| 40 | const G4AffineTransform& sampleTransform, |
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| 41 | const G4bool locatedOnEdge) |
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| 42 | { |
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| 43 | G4ThreeVector localDirection, sampleNormal; |
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| 44 | G4bool enter = false; |
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| 45 | |
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| 46 | EInside insideSolid = sampleSolid->Inside(localPoint); |
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| 47 | if ( insideSolid!=kOutside ) |
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| 48 | { |
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| 49 | G4bool checkDirection= locatedOnEdge && (globalDirection!=0); |
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| 50 | if( (insideSolid==kSurface) && checkDirection) |
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| 51 | { |
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| 52 | // We are probably located on an edge. |
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| 53 | // |
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| 54 | localDirection= sampleTransform.TransformAxis(*globalDirection); |
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| 55 | |
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| 56 | // Check whether we enter the volume |
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| 57 | // |
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| 58 | sampleNormal = sampleSolid->SurfaceNormal(localPoint); |
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| 59 | if ( sampleNormal.dot(localDirection) <= 0 ) |
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| 60 | { |
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| 61 | if( sampleNormal.dot(localDirection) == 0 ) |
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| 62 | { |
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| 63 | // We can't decide yet, let's make sure we're entering the solid. |
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| 64 | // If by a confusion we entered the next solid we find out now |
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| 65 | // whether to leave or to enter. |
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| 66 | // This happens when we're on the surface or edge shared by two |
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| 67 | // solids |
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| 68 | // |
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| 69 | G4double distanceToIn = |
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| 70 | sampleSolid->DistanceToIn( localPoint, localDirection ); |
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| 71 | if( distanceToIn != kInfinity ) |
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| 72 | { |
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| 73 | enter = true; |
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| 74 | } |
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| 75 | } |
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| 76 | else |
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| 77 | { |
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| 78 | enter = true; |
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| 79 | } |
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| 80 | } |
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| 81 | } |
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| 82 | else |
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| 83 | { |
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| 84 | enter = true; |
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| 85 | } |
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| 86 | } |
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| 87 | return enter; |
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| 88 | } |
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| 89 | |
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| 90 | // -------------------------------------------------------------------- |
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| 91 | |
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| 92 | inline G4bool |
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| 93 | G4AuxiliaryNavServices:: |
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| 94 | CheckPointExiting( const G4VSolid* sampleSolid, |
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| 95 | const G4ThreeVector& localPoint, |
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| 96 | const G4ThreeVector* globalDirection, |
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| 97 | const G4AffineTransform& sampleTransform ) |
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| 98 | { |
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| 99 | if( !globalDirection ) { return false; } |
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| 100 | |
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| 101 | G4ThreeVector localDirection, sampleNormal; |
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| 102 | G4bool exiting = false; |
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| 103 | |
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| 104 | EInside insideSolid = sampleSolid->Inside(localPoint); |
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| 105 | if( (insideSolid==kSurface) ) |
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| 106 | { |
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| 107 | localDirection= sampleTransform.TransformAxis(*globalDirection); |
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| 108 | |
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| 109 | // Check whether we are exiting the volume |
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| 110 | // |
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| 111 | sampleNormal = sampleSolid->SurfaceNormal(localPoint); |
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| 112 | if ( sampleNormal.dot(localDirection) >= 0 ) |
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| 113 | { |
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| 114 | if( sampleNormal.dot(localDirection) == 0 ) |
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| 115 | { |
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| 116 | // We can't decide yet, let's make sure we're entering the solid. |
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| 117 | // If by a confusion we entered the next solid we find out now |
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| 118 | // whether to leave or to exiting. |
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| 119 | // This happens when we're on the surface or edge shared by two |
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| 120 | // solids |
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| 121 | // |
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| 122 | G4double distanceToIn = |
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| 123 | sampleSolid->DistanceToIn( localPoint, localDirection ); |
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| 124 | if( distanceToIn != kInfinity ) |
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| 125 | { |
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| 126 | exiting = true; |
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| 127 | } |
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| 128 | } |
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| 129 | else |
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| 130 | { |
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| 131 | exiting = true; |
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| 132 | } |
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| 133 | } |
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| 134 | } |
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| 135 | return exiting; |
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| 136 | } |
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