[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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[1315] | 27 | // $Id: G4BooleanSolid.cc,v 1.23 2010/05/11 15:03:45 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 | // Implementation for the abstract base class for solids created by boolean |
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| 31 | // operations between other solids |
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| 32 | // |
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| 33 | // History: |
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| 34 | // |
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| 35 | // 10.09.98 V.Grichine, created |
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| 36 | // |
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| 37 | // -------------------------------------------------------------------- |
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| 38 | |
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| 39 | #include "G4BooleanSolid.hh" |
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| 40 | #include "G4VSolid.hh" |
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| 41 | #include "G4Polyhedron.hh" |
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[1315] | 42 | #include "HepPolyhedronProcessor.h" |
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[831] | 43 | #include "Randomize.hh" |
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| 44 | |
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| 45 | ////////////////////////////////////////////////////////////////// |
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| 46 | // |
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| 47 | // Constructor |
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| 48 | |
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| 49 | G4BooleanSolid::G4BooleanSolid( const G4String& pName, |
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| 50 | G4VSolid* pSolidA , |
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| 51 | G4VSolid* pSolidB ) : |
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| 52 | G4VSolid(pName), fStatistics(1000000), fCubVolEpsilon(0.001), |
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| 53 | fAreaAccuracy(-1.), fCubicVolume(0.), fSurfaceArea(0.), |
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| 54 | fpPolyhedron(0), createdDisplacedSolid(false) |
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| 55 | { |
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| 56 | fPtrSolidA = pSolidA ; |
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| 57 | fPtrSolidB = pSolidB ; |
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| 58 | } |
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| 59 | |
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| 60 | ////////////////////////////////////////////////////////////////// |
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| 61 | // |
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| 62 | // Constructor |
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| 63 | |
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| 64 | G4BooleanSolid::G4BooleanSolid( const G4String& pName, |
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| 65 | G4VSolid* pSolidA , |
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| 66 | G4VSolid* pSolidB , |
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| 67 | G4RotationMatrix* rotMatrix, |
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| 68 | const G4ThreeVector& transVector ) : |
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| 69 | G4VSolid(pName), fStatistics(1000000), fCubVolEpsilon(0.001), |
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| 70 | fAreaAccuracy(-1.), fCubicVolume(0.), fSurfaceArea(0.), |
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| 71 | fpPolyhedron(0), createdDisplacedSolid(true) |
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| 72 | { |
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| 73 | fPtrSolidA = pSolidA ; |
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| 74 | fPtrSolidB = new G4DisplacedSolid("placedB",pSolidB,rotMatrix,transVector) ; |
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| 75 | } |
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| 76 | |
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| 77 | ////////////////////////////////////////////////////////////////// |
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| 78 | // |
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| 79 | // Constructor |
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| 80 | |
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| 81 | G4BooleanSolid::G4BooleanSolid( const G4String& pName, |
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| 82 | G4VSolid* pSolidA , |
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| 83 | G4VSolid* pSolidB , |
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| 84 | const G4Transform3D& transform ) : |
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| 85 | G4VSolid(pName), fStatistics(1000000), fCubVolEpsilon(0.001), |
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| 86 | fAreaAccuracy(-1.), fCubicVolume(0.), fSurfaceArea(0.), |
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| 87 | fpPolyhedron(0), createdDisplacedSolid(true) |
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| 88 | { |
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| 89 | fPtrSolidA = pSolidA ; |
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| 90 | fPtrSolidB = new G4DisplacedSolid("placedB",pSolidB,transform) ; |
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| 91 | } |
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| 92 | |
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| 93 | /////////////////////////////////////////////////////////////// |
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| 94 | // |
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| 95 | // Fake default constructor - sets only member data and allocates memory |
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| 96 | // for usage restricted to object persistency. |
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| 97 | |
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| 98 | G4BooleanSolid::G4BooleanSolid( __void__& a ) |
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| 99 | : G4VSolid(a), fPtrSolidA(0), fPtrSolidB(0), |
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| 100 | fStatistics(1000000), fCubVolEpsilon(0.001), |
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| 101 | fAreaAccuracy(-1.), fCubicVolume(0.), fSurfaceArea(0.), |
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| 102 | fpPolyhedron(0), createdDisplacedSolid(false) |
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| 103 | { |
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| 104 | } |
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| 105 | |
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| 106 | /////////////////////////////////////////////////////////////// |
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| 107 | // |
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| 108 | // Destructor deletes transformation contents of the created displaced solid |
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| 109 | |
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| 110 | G4BooleanSolid::~G4BooleanSolid() |
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| 111 | { |
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| 112 | if(createdDisplacedSolid) |
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| 113 | { |
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| 114 | ((G4DisplacedSolid*)fPtrSolidB)->CleanTransformations(); |
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| 115 | } |
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| 116 | delete fpPolyhedron; |
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| 117 | } |
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| 118 | |
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| 119 | /////////////////////////////////////////////////////////////// |
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| 120 | // |
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| 121 | // If Solid is made up from a Boolean operation of two solids, |
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| 122 | // return the corresponding solid (for no=0 and 1) |
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| 123 | // If the solid is not a "Boolean", return 0 |
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| 124 | |
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| 125 | const G4VSolid* G4BooleanSolid::GetConstituentSolid(G4int no) const |
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| 126 | { |
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| 127 | const G4VSolid* subSolid=0; |
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| 128 | if( no == 0 ) |
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| 129 | subSolid = fPtrSolidA; |
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| 130 | else if( no == 1 ) |
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| 131 | subSolid = fPtrSolidB; |
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| 132 | else |
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| 133 | { |
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| 134 | DumpInfo(); |
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| 135 | G4Exception("G4BooleanSolid::GetConstituentSolid()", |
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| 136 | "WrongArgumentValue", FatalException, |
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| 137 | "Invalid solid index."); |
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| 138 | } |
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| 139 | |
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| 140 | return subSolid; |
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| 141 | } |
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| 142 | |
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| 143 | /////////////////////////////////////////////////////////////// |
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| 144 | // |
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| 145 | // If Solid is made up from a Boolean operation of two solids, |
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| 146 | // return the corresponding solid (for no=0 and 1) |
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| 147 | // If the solid is not a "Boolean", return 0 |
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| 148 | |
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| 149 | G4VSolid* G4BooleanSolid::GetConstituentSolid(G4int no) |
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| 150 | { |
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| 151 | G4VSolid* subSolid=0; |
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| 152 | if( no == 0 ) |
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| 153 | subSolid = fPtrSolidA; |
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| 154 | else if( no == 1 ) |
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| 155 | subSolid = fPtrSolidB; |
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| 156 | else |
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| 157 | { |
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| 158 | DumpInfo(); |
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| 159 | G4Exception("G4BooleanSolid::GetConstituentSolid()", |
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| 160 | "WrongArgumentValue", FatalException, |
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| 161 | "Invalid solid index."); |
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| 162 | } |
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| 163 | |
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| 164 | return subSolid; |
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| 165 | } |
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| 166 | |
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| 167 | ////////////////////////////////////////////////////////////////////////// |
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| 168 | // |
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| 169 | // Returns entity type |
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| 170 | |
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| 171 | G4GeometryType G4BooleanSolid::GetEntityType() const |
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| 172 | { |
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| 173 | return G4String("G4BooleanSolid"); |
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| 174 | } |
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| 175 | |
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| 176 | ////////////////////////////////////////////////////////////////////////// |
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| 177 | // |
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| 178 | // Stream object contents to an output stream |
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| 179 | |
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| 180 | std::ostream& G4BooleanSolid::StreamInfo(std::ostream& os) const |
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| 181 | { |
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| 182 | os << "-----------------------------------------------------------\n" |
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| 183 | << " *** Dump for Boolean solid - " << GetName() << " ***\n" |
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| 184 | << " ===================================================\n" |
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| 185 | << " Solid type: " << GetEntityType() << "\n" |
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| 186 | << " Parameters of constituent solids: \n" |
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| 187 | << "===========================================================\n"; |
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| 188 | fPtrSolidA->StreamInfo(os); |
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| 189 | fPtrSolidB->StreamInfo(os); |
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| 190 | os << "===========================================================\n"; |
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| 191 | |
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| 192 | return os; |
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| 193 | } |
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| 194 | |
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| 195 | ////////////////////////////////////////////////////////////////////////// |
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| 196 | // |
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| 197 | // Returns a point (G4ThreeVector) randomly and uniformly selected |
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| 198 | // on the solid surface |
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| 199 | // |
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| 200 | |
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| 201 | G4ThreeVector G4BooleanSolid::GetPointOnSurface() const |
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| 202 | { |
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| 203 | G4bool condition = true; |
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| 204 | G4double rand; |
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| 205 | G4ThreeVector p; |
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| 206 | |
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| 207 | while(condition) |
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| 208 | { |
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| 209 | rand = G4UniformRand(); |
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| 210 | |
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| 211 | if(rand > 0.5) { p = fPtrSolidA->GetPointOnSurface(); } |
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| 212 | else { p = fPtrSolidB->GetPointOnSurface(); } |
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| 213 | |
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| 214 | if(Inside(p) == kSurface) { break; } |
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| 215 | } |
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| 216 | return p; |
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| 217 | } |
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| 218 | |
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| 219 | ////////////////////////////////////////////////////////////////////////// |
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| 220 | // |
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| 221 | // Returns polyhedron for visualization |
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| 222 | |
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| 223 | G4Polyhedron* G4BooleanSolid::GetPolyhedron () const |
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| 224 | { |
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| 225 | if (!fpPolyhedron || |
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| 226 | fpPolyhedron->GetNumberOfRotationStepsAtTimeOfCreation() != |
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| 227 | fpPolyhedron->GetNumberOfRotationSteps()) |
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| 228 | { |
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| 229 | delete fpPolyhedron; |
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| 230 | fpPolyhedron = CreatePolyhedron(); |
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| 231 | } |
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| 232 | return fpPolyhedron; |
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| 233 | } |
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[1315] | 234 | |
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| 235 | ////////////////////////////////////////////////////////////////////////// |
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| 236 | // |
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| 237 | // Stacks polyhedra for processing. Returns top polyhedron. |
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| 238 | |
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| 239 | G4Polyhedron* |
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| 240 | G4BooleanSolid::StackPolyhedron(HepPolyhedronProcessor& processor, |
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| 241 | const G4VSolid* solid) const |
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| 242 | { |
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| 243 | HepPolyhedronProcessor::Operation operation; |
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| 244 | const G4String& type = solid->GetEntityType(); |
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| 245 | if (type == "G4UnionSolid") |
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| 246 | { operation = HepPolyhedronProcessor::UNION; } |
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| 247 | else if (type == "G4IntersectionSolid") |
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| 248 | { operation = HepPolyhedronProcessor::INTERSECTION; } |
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| 249 | else if (type == "G4SubtractionSolid") |
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| 250 | { operation = HepPolyhedronProcessor::SUBTRACTION; } |
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| 251 | else |
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| 252 | { |
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| 253 | std::ostringstream oss; |
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| 254 | oss << "Solid - " << solid->GetName() |
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| 255 | << " - Unrecognised composite solid" |
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| 256 | << "\n Returning NULL !"; |
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| 257 | G4Exception("StackPolyhedron()", "InvalidSetup", |
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| 258 | JustWarning, oss.str().c_str()); |
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| 259 | return 0; |
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| 260 | } |
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| 261 | |
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| 262 | G4Polyhedron* top = 0; |
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| 263 | const G4VSolid* solidA = solid->GetConstituentSolid(0); |
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| 264 | const G4VSolid* solidB = solid->GetConstituentSolid(1); |
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| 265 | |
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| 266 | if (solidA->GetConstituentSolid(0)) |
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| 267 | { |
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| 268 | top = StackPolyhedron(processor, solidA); |
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| 269 | } |
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| 270 | else |
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| 271 | { |
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| 272 | top = solidA->GetPolyhedron(); |
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| 273 | } |
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| 274 | G4Polyhedron* operand = solidB->GetPolyhedron(); |
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| 275 | processor.push_back (operation, *operand); |
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| 276 | |
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| 277 | return top; |
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| 278 | } |
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