| 1 | //
|
|---|
| 2 | // ********************************************************************
|
|---|
| 3 | // * License and Disclaimer *
|
|---|
| 4 | // * *
|
|---|
| 5 | // * The Geant4 software is copyright of the Copyright Holders of *
|
|---|
| 6 | // * the Geant4 Collaboration. It is provided under the terms and *
|
|---|
| 7 | // * conditions of the Geant4 Software License, included in the file *
|
|---|
| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These *
|
|---|
| 9 | // * include a list of copyright holders. *
|
|---|
| 10 | // * *
|
|---|
| 11 | // * Neither the authors of this software system, nor their employing *
|
|---|
| 12 | // * institutes,nor the agencies providing financial support for this *
|
|---|
| 13 | // * work make any representation or warranty, express or implied, *
|
|---|
| 14 | // * regarding this software system or assume any liability for its *
|
|---|
| 15 | // * use. Please see the license in the file LICENSE and URL above *
|
|---|
| 16 | // * for the full disclaimer and the limitation of liability. *
|
|---|
| 17 | // * *
|
|---|
| 18 | // * This code implementation is the result of the scientific and *
|
|---|
| 19 | // * technical work of the GEANT4 collaboration. *
|
|---|
| 20 | // * By using, copying, modifying or distributing the software (or *
|
|---|
| 21 | // * any work based on the software) you agree to acknowledge its *
|
|---|
| 22 | // * use in resulting scientific publications, and indicate your *
|
|---|
| 23 | // * acceptance of all terms of the Geant4 Software license. *
|
|---|
| 24 | // ********************************************************************
|
|---|
| 25 | //
|
|---|
| 26 | //
|
|---|
| 27 | // $Id: G4AuxiliaryNavServices.icc,v 1.4 2007/05/22 07:48:08 gcosmo Exp $
|
|---|
| 28 | // GEANT4 tag $Name: geant4-09-03 $
|
|---|
| 29 | //
|
|---|
| 30 | //
|
|---|
| 31 | // class G4AuxiliaryNavServices Inline implementation
|
|---|
| 32 | //
|
|---|
| 33 | // --------------------------------------------------------------------
|
|---|
| 34 |
|
|---|
| 35 | inline G4bool
|
|---|
| 36 | G4AuxiliaryNavServices::
|
|---|
| 37 | CheckPointOnSurface( const G4VSolid* sampleSolid,
|
|---|
| 38 | const G4ThreeVector& localPoint,
|
|---|
| 39 | const G4ThreeVector* globalDirection,
|
|---|
| 40 | const G4AffineTransform& sampleTransform,
|
|---|
| 41 | const G4bool locatedOnEdge)
|
|---|
| 42 | {
|
|---|
| 43 | G4ThreeVector localDirection, sampleNormal;
|
|---|
| 44 | G4bool enter = false;
|
|---|
| 45 |
|
|---|
| 46 | EInside insideSolid = sampleSolid->Inside(localPoint);
|
|---|
| 47 | if ( insideSolid!=kOutside )
|
|---|
| 48 | {
|
|---|
| 49 | G4bool checkDirection= locatedOnEdge && (globalDirection!=0);
|
|---|
| 50 | if( (insideSolid==kSurface) && checkDirection)
|
|---|
| 51 | {
|
|---|
| 52 | // We are probably located on an edge.
|
|---|
| 53 | //
|
|---|
| 54 | localDirection= sampleTransform.TransformAxis(*globalDirection);
|
|---|
| 55 |
|
|---|
| 56 | // Check whether we enter the volume
|
|---|
| 57 | //
|
|---|
| 58 | sampleNormal = sampleSolid->SurfaceNormal(localPoint);
|
|---|
| 59 | if ( sampleNormal.dot(localDirection) <= 0 )
|
|---|
| 60 | {
|
|---|
| 61 | if( sampleNormal.dot(localDirection) == 0 )
|
|---|
| 62 | {
|
|---|
| 63 | // We can't decide yet, let's make sure we're entering the solid.
|
|---|
| 64 | // If by a confusion we entered the next solid we find out now
|
|---|
| 65 | // whether to leave or to enter.
|
|---|
| 66 | // This happens when we're on the surface or edge shared by two
|
|---|
| 67 | // solids
|
|---|
| 68 | //
|
|---|
| 69 | G4double distanceToIn =
|
|---|
| 70 | sampleSolid->DistanceToIn( localPoint, localDirection );
|
|---|
| 71 | if( distanceToIn != kInfinity )
|
|---|
| 72 | {
|
|---|
| 73 | enter = true;
|
|---|
| 74 | }
|
|---|
| 75 | }
|
|---|
| 76 | else
|
|---|
| 77 | {
|
|---|
| 78 | enter = true;
|
|---|
| 79 | }
|
|---|
| 80 | }
|
|---|
| 81 | }
|
|---|
| 82 | else
|
|---|
| 83 | {
|
|---|
| 84 | enter = true;
|
|---|
| 85 | }
|
|---|
| 86 | }
|
|---|
| 87 | return enter;
|
|---|
| 88 | }
|
|---|
| 89 |
|
|---|
| 90 | // --------------------------------------------------------------------
|
|---|
| 91 |
|
|---|
| 92 | inline G4bool
|
|---|
| 93 | G4AuxiliaryNavServices::
|
|---|
| 94 | CheckPointExiting( const G4VSolid* sampleSolid,
|
|---|
| 95 | const G4ThreeVector& localPoint,
|
|---|
| 96 | const G4ThreeVector* globalDirection,
|
|---|
| 97 | const G4AffineTransform& sampleTransform )
|
|---|
| 98 | {
|
|---|
| 99 | if( !globalDirection ) { return false; }
|
|---|
| 100 |
|
|---|
| 101 | G4ThreeVector localDirection, sampleNormal;
|
|---|
| 102 | G4bool exiting = false;
|
|---|
| 103 |
|
|---|
| 104 | EInside insideSolid = sampleSolid->Inside(localPoint);
|
|---|
| 105 | if( (insideSolid==kSurface) )
|
|---|
| 106 | {
|
|---|
| 107 | localDirection= sampleTransform.TransformAxis(*globalDirection);
|
|---|
| 108 |
|
|---|
| 109 | // Check whether we are exiting the volume
|
|---|
| 110 | //
|
|---|
| 111 | sampleNormal = sampleSolid->SurfaceNormal(localPoint);
|
|---|
| 112 | if ( sampleNormal.dot(localDirection) >= 0 )
|
|---|
| 113 | {
|
|---|
| 114 | if( sampleNormal.dot(localDirection) == 0 )
|
|---|
| 115 | {
|
|---|
| 116 | // We can't decide yet, let's make sure we're entering the solid.
|
|---|
| 117 | // If by a confusion we entered the next solid we find out now
|
|---|
| 118 | // whether to leave or to exiting.
|
|---|
| 119 | // This happens when we're on the surface or edge shared by two
|
|---|
| 120 | // solids
|
|---|
| 121 | //
|
|---|
| 122 | G4double distanceToIn =
|
|---|
| 123 | sampleSolid->DistanceToIn( localPoint, localDirection );
|
|---|
| 124 | if( distanceToIn != kInfinity )
|
|---|
| 125 | {
|
|---|
| 126 | exiting = true;
|
|---|
| 127 | }
|
|---|
| 128 | }
|
|---|
| 129 | else
|
|---|
| 130 | {
|
|---|
| 131 | exiting = true;
|
|---|
| 132 | }
|
|---|
| 133 | }
|
|---|
| 134 | }
|
|---|
| 135 | return exiting;
|
|---|
| 136 | }
|
|---|
