[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: G4UnionSolid.cc,v 1.35 2007/10/23 14:42:31 grichine Exp $ |
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[1058] | 28 | // GEANT4 tag $Name: geant4-09-02-ref-02 $ |
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[831] | 29 | // |
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| 30 | // Implementation of methods for the class G4IntersectionSolid |
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| 31 | // |
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| 32 | // History: |
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| 33 | // |
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| 34 | // 12.09.98 V.Grichine: first implementation |
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| 35 | // 28.11.98 V.Grichine: fix while loops in DistToIn/Out |
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| 36 | // 27.07.99 V.Grichine: modifications in DistToOut(p,v,...), while -> do-while |
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| 37 | // 16.03.01 V.Grichine: modifications in CalculateExtent() |
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| 38 | // |
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| 39 | // -------------------------------------------------------------------- |
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| 40 | |
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| 41 | #include "G4UnionSolid.hh" |
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| 42 | |
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| 43 | #include <sstream> |
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| 44 | |
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| 45 | #include "G4VoxelLimits.hh" |
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| 46 | #include "G4VPVParameterisation.hh" |
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| 47 | #include "G4GeometryTolerance.hh" |
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| 48 | |
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| 49 | #include "G4VGraphicsScene.hh" |
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| 50 | #include "G4Polyhedron.hh" |
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| 51 | #include "G4NURBS.hh" |
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| 52 | // #include "G4NURBSbox.hh" |
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| 53 | |
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| 54 | /////////////////////////////////////////////////////////////////// |
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| 55 | // |
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| 56 | // Transfer all data members to G4BooleanSolid which is responsible |
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| 57 | // for them. pName will be in turn sent to G4VSolid |
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| 58 | |
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| 59 | G4UnionSolid:: G4UnionSolid( const G4String& pName, |
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| 60 | G4VSolid* pSolidA , |
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| 61 | G4VSolid* pSolidB ) |
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| 62 | : G4BooleanSolid(pName,pSolidA,pSolidB) |
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| 63 | { |
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| 64 | } |
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| 65 | |
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| 66 | ///////////////////////////////////////////////////////////////////// |
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| 67 | // |
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| 68 | // Constructor |
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| 69 | |
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| 70 | G4UnionSolid::G4UnionSolid( const G4String& pName, |
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| 71 | G4VSolid* pSolidA , |
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| 72 | G4VSolid* pSolidB , |
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| 73 | G4RotationMatrix* rotMatrix, |
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| 74 | const G4ThreeVector& transVector ) |
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| 75 | : G4BooleanSolid(pName,pSolidA,pSolidB,rotMatrix,transVector) |
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| 76 | |
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| 77 | { |
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| 78 | } |
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| 79 | |
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| 80 | /////////////////////////////////////////////////////////// |
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| 81 | // |
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| 82 | // Constructor |
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| 83 | |
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| 84 | G4UnionSolid::G4UnionSolid( const G4String& pName, |
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| 85 | G4VSolid* pSolidA , |
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| 86 | G4VSolid* pSolidB , |
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| 87 | const G4Transform3D& transform ) |
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| 88 | : G4BooleanSolid(pName,pSolidA,pSolidB,transform) |
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| 89 | { |
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| 90 | } |
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| 91 | |
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| 92 | ////////////////////////////////////////////////////////////////// |
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| 93 | // |
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| 94 | // Fake default constructor - sets only member data and allocates memory |
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| 95 | // for usage restricted to object persistency. |
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| 96 | |
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| 97 | G4UnionSolid::G4UnionSolid( __void__& a ) |
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| 98 | : G4BooleanSolid(a) |
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| 99 | { |
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| 100 | } |
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| 101 | |
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| 102 | /////////////////////////////////////////////////////////// |
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| 103 | // |
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| 104 | // Destructor |
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| 105 | |
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| 106 | G4UnionSolid::~G4UnionSolid() |
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| 107 | { |
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| 108 | } |
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| 109 | |
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| 110 | /////////////////////////////////////////////////////////////// |
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| 111 | // |
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| 112 | // |
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| 113 | |
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| 114 | G4bool |
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| 115 | G4UnionSolid::CalculateExtent( const EAxis pAxis, |
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| 116 | const G4VoxelLimits& pVoxelLimit, |
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| 117 | const G4AffineTransform& pTransform, |
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| 118 | G4double& pMin, |
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| 119 | G4double& pMax ) const |
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| 120 | { |
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| 121 | G4bool touchesA, touchesB, out ; |
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| 122 | G4double minA = kInfinity, minB = kInfinity, |
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| 123 | maxA = -kInfinity, maxB = -kInfinity; |
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| 124 | |
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| 125 | touchesA = fPtrSolidA->CalculateExtent( pAxis, pVoxelLimit, |
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| 126 | pTransform, minA, maxA); |
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| 127 | touchesB= fPtrSolidB->CalculateExtent( pAxis, pVoxelLimit, |
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| 128 | pTransform, minB, maxB); |
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| 129 | if( touchesA || touchesB ) |
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| 130 | { |
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| 131 | pMin = std::min( minA, minB ); |
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| 132 | pMax = std::max( maxA, maxB ); |
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| 133 | out = true ; |
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| 134 | } |
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| 135 | else out = false ; |
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| 136 | |
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| 137 | return out ; // It exists in this slice if either one does. |
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| 138 | } |
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| 139 | |
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| 140 | ///////////////////////////////////////////////////// |
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| 141 | // |
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| 142 | // Important comment: When solids A and B touch together along flat |
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| 143 | // surface the surface points will be considered as kSurface, while points |
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| 144 | // located around will correspond to kInside |
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| 145 | |
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| 146 | EInside G4UnionSolid::Inside( const G4ThreeVector& p ) const |
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| 147 | { |
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| 148 | EInside positionA = fPtrSolidA->Inside(p); |
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| 149 | if (positionA == kInside) return kInside; |
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| 150 | |
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| 151 | EInside positionB = fPtrSolidB->Inside(p); |
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| 152 | |
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| 153 | if( positionA == kInside || positionB == kInside || |
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| 154 | ( positionA == kSurface && positionB == kSurface && |
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| 155 | ( fPtrSolidA->SurfaceNormal(p) + |
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| 156 | fPtrSolidB->SurfaceNormal(p) ).mag2() < |
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| 157 | 1000*G4GeometryTolerance::GetInstance()->GetRadialTolerance() ) ) |
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| 158 | { |
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| 159 | return kInside; |
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| 160 | } |
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| 161 | else |
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| 162 | { |
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| 163 | if( ( positionA != kInside && positionB == kSurface ) || |
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| 164 | ( positionB != kInside && positionA == kSurface ) || |
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| 165 | ( positionA == kSurface && positionB == kSurface ) ) return kSurface; |
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| 166 | else return kOutside; |
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| 167 | } |
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| 168 | } |
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| 169 | |
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| 170 | ////////////////////////////////////////////////////////////// |
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| 171 | // |
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| 172 | // |
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| 173 | |
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| 174 | G4ThreeVector |
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| 175 | G4UnionSolid::SurfaceNormal( const G4ThreeVector& p ) const |
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| 176 | { |
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| 177 | G4ThreeVector normal; |
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| 178 | |
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| 179 | #ifdef G4BOOLDEBUG |
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| 180 | if( Inside(p) == kOutside ) |
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| 181 | { |
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| 182 | G4cout << "WARNING - Invalid call in " |
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| 183 | << "G4UnionSolid::SurfaceNormal(p)" << G4endl |
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| 184 | << " Point p is outside !" << G4endl; |
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| 185 | G4cout << " p = " << p << G4endl; |
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| 186 | G4cerr << "WARNING - Invalid call in " |
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| 187 | << "G4UnionSolid::SurfaceNormal(p)" << G4endl |
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| 188 | << " Point p is outside !" << G4endl; |
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| 189 | G4cerr << " p = " << p << G4endl; |
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| 190 | } |
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| 191 | #endif |
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| 192 | |
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| 193 | if(fPtrSolidA->Inside(p) == kSurface && fPtrSolidB->Inside(p) != kInside) |
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| 194 | { |
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| 195 | normal= fPtrSolidA->SurfaceNormal(p) ; |
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| 196 | } |
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| 197 | else if(fPtrSolidB->Inside(p) == kSurface && |
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| 198 | fPtrSolidA->Inside(p) != kInside) |
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| 199 | { |
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| 200 | normal= fPtrSolidB->SurfaceNormal(p) ; |
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| 201 | } |
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| 202 | else |
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| 203 | { |
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| 204 | normal= fPtrSolidA->SurfaceNormal(p) ; |
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| 205 | #ifdef G4BOOLDEBUG |
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| 206 | if(Inside(p)==kInside) |
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| 207 | { |
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| 208 | G4cout << "WARNING - Invalid call in " |
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| 209 | << "G4UnionSolid::SurfaceNormal(p)" << G4endl |
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| 210 | << " Point p is inside !" << G4endl; |
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| 211 | G4cout << " p = " << p << G4endl; |
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| 212 | G4cerr << "WARNING - Invalid call in " |
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| 213 | << "G4UnionSolid::SurfaceNormal(p)" << G4endl |
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| 214 | << " Point p is inside !" << G4endl; |
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| 215 | G4cerr << " p = " << p << G4endl; |
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| 216 | } |
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| 217 | #endif |
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| 218 | } |
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| 219 | return normal; |
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| 220 | } |
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| 221 | |
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| 222 | ///////////////////////////////////////////////////////////// |
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| 223 | // |
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| 224 | // The same algorithm as in DistanceToIn(p) |
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| 225 | |
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| 226 | G4double |
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| 227 | G4UnionSolid::DistanceToIn( const G4ThreeVector& p, |
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| 228 | const G4ThreeVector& v ) const |
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| 229 | { |
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| 230 | #ifdef G4BOOLDEBUG |
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| 231 | if( Inside(p) == kInside ) |
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| 232 | { |
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| 233 | G4cout << "WARNING - Invalid call in " |
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| 234 | << "G4UnionSolid::DistanceToIn(p,v)" << G4endl |
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| 235 | << " Point p is inside !" << G4endl; |
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| 236 | G4cout << " p = " << p << G4endl; |
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| 237 | G4cout << " v = " << v << G4endl; |
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| 238 | G4cerr << "WARNING - Invalid call in " |
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| 239 | << "G4UnionSolid::DistanceToIn(p,v)" << G4endl |
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| 240 | << " Point p is inside !" << G4endl; |
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| 241 | G4cerr << " p = " << p << G4endl; |
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| 242 | G4cerr << " v = " << v << G4endl; |
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| 243 | } |
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| 244 | #endif |
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| 245 | |
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| 246 | return std::min(fPtrSolidA->DistanceToIn(p,v), |
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| 247 | fPtrSolidB->DistanceToIn(p,v) ) ; |
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| 248 | } |
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| 249 | |
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| 250 | //////////////////////////////////////////////////////// |
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| 251 | // |
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| 252 | // Approximate nearest distance from the point p to the union of |
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| 253 | // two solids |
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| 254 | |
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| 255 | G4double |
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| 256 | G4UnionSolid::DistanceToIn( const G4ThreeVector& p) const |
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| 257 | { |
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| 258 | #ifdef G4BOOLDEBUG |
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| 259 | if( Inside(p) == kInside ) |
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| 260 | { |
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| 261 | G4cout << "WARNING - Invalid call in " |
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| 262 | << "G4UnionSolid::DistanceToIn(p)" << G4endl |
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| 263 | << " Point p is inside !" << G4endl; |
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| 264 | G4cout << " p = " << p << G4endl; |
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| 265 | G4cerr << "WARNING - Invalid call in " |
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| 266 | << "G4UnionSolid::DistanceToIn(p)" << G4endl |
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| 267 | << " Point p is inside !" << G4endl; |
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| 268 | G4cerr << " p = " << p << G4endl; |
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| 269 | } |
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| 270 | #endif |
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| 271 | G4double distA = fPtrSolidA->DistanceToIn(p) ; |
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| 272 | G4double distB = fPtrSolidB->DistanceToIn(p) ; |
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| 273 | G4double safety = std::min(distA,distB) ; |
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| 274 | if(safety < 0.0) safety = 0.0 ; |
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| 275 | return safety ; |
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| 276 | } |
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| 277 | |
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| 278 | ////////////////////////////////////////////////////////// |
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| 279 | // |
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| 280 | // The same algorithm as DistanceToOut(p) |
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| 281 | |
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| 282 | G4double |
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| 283 | G4UnionSolid::DistanceToOut( const G4ThreeVector& p, |
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| 284 | const G4ThreeVector& v, |
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| 285 | const G4bool calcNorm, |
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| 286 | G4bool *validNorm, |
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| 287 | G4ThreeVector *n ) const |
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| 288 | { |
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| 289 | G4double dist = 0.0, disTmp = 0.0 ; |
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| 290 | G4ThreeVector normTmp; |
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| 291 | G4ThreeVector* nTmp= &normTmp; |
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| 292 | |
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| 293 | if( Inside(p) == kOutside ) |
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| 294 | { |
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| 295 | #ifdef G4BOOLDEBUG |
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| 296 | G4cout << "Position:" << G4endl << G4endl; |
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| 297 | G4cout << "p.x() = " << p.x()/mm << " mm" << G4endl; |
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| 298 | G4cout << "p.y() = " << p.y()/mm << " mm" << G4endl; |
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| 299 | G4cout << "p.z() = " << p.z()/mm << " mm" << G4endl << G4endl; |
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| 300 | G4cout << "Direction:" << G4endl << G4endl; |
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| 301 | G4cout << "v.x() = " << v.x() << G4endl; |
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| 302 | G4cout << "v.y() = " << v.y() << G4endl; |
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| 303 | G4cout << "v.z() = " << v.z() << G4endl << G4endl; |
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| 304 | G4cout << "WARNING - Invalid call in " |
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| 305 | << "G4UnionSolid::DistanceToOut(p,v)" << G4endl |
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| 306 | << " Point p is outside !" << G4endl; |
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| 307 | G4cout << " p = " << p << G4endl; |
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| 308 | G4cout << " v = " << v << G4endl; |
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| 309 | G4cerr << "WARNING - Invalid call in " |
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| 310 | << "G4UnionSolid::DistanceToOut(p,v)" << G4endl |
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| 311 | << " Point p is outside !" << G4endl; |
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| 312 | G4cerr << " p = " << p << G4endl; |
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| 313 | G4cerr << " v = " << v << G4endl; |
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| 314 | #endif |
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| 315 | } |
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| 316 | else |
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| 317 | { |
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| 318 | EInside positionA = fPtrSolidA->Inside(p) ; |
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| 319 | // EInside positionB = fPtrSolidB->Inside(p) ; |
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| 320 | |
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| 321 | if( positionA != kOutside ) |
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| 322 | { |
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| 323 | do |
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| 324 | { |
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| 325 | disTmp = fPtrSolidA->DistanceToOut(p+dist*v,v,calcNorm, |
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| 326 | validNorm,nTmp) ; |
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| 327 | dist += disTmp ; |
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| 328 | |
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| 329 | if(fPtrSolidB->Inside(p+dist*v) != kOutside) |
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| 330 | { |
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| 331 | disTmp = fPtrSolidB->DistanceToOut(p+dist*v,v,calcNorm, |
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| 332 | validNorm,nTmp) ; |
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| 333 | dist += disTmp ; |
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| 334 | } |
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| 335 | } |
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| 336 | // while( Inside(p+dist*v) == kInside ) ; |
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| 337 | while( fPtrSolidA->Inside(p+dist*v) != kOutside && |
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| 338 | disTmp > 0.5*kCarTolerance ) ; |
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| 339 | } |
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| 340 | else // if( positionB != kOutside ) |
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| 341 | { |
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| 342 | do |
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| 343 | { |
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| 344 | disTmp = fPtrSolidB->DistanceToOut(p+dist*v,v,calcNorm, |
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| 345 | validNorm,nTmp) ; |
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| 346 | dist += disTmp ; |
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| 347 | |
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| 348 | if(fPtrSolidA->Inside(p+dist*v) != kOutside) |
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| 349 | { |
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| 350 | disTmp = fPtrSolidA->DistanceToOut(p+dist*v,v,calcNorm, |
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| 351 | validNorm,nTmp) ; |
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| 352 | dist += disTmp ; |
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| 353 | } |
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| 354 | } |
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| 355 | // while( Inside(p+dist*v) == kInside ) ; |
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| 356 | while( (fPtrSolidB->Inside(p+dist*v) != kOutside) |
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| 357 | && (disTmp > 0.5*kCarTolerance) ) ; |
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| 358 | } |
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| 359 | } |
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| 360 | if( calcNorm ) |
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| 361 | { |
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| 362 | *validNorm = false ; |
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| 363 | *n = *nTmp ; |
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| 364 | } |
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| 365 | return dist ; |
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| 366 | } |
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| 367 | |
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| 368 | ////////////////////////////////////////////////////////////// |
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| 369 | // |
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| 370 | // Inverted algorithm of DistanceToIn(p) |
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| 371 | |
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| 372 | G4double |
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| 373 | G4UnionSolid::DistanceToOut( const G4ThreeVector& p ) const |
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| 374 | { |
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| 375 | G4double distout = 0.0; |
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| 376 | if( Inside(p) == kOutside ) |
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| 377 | { |
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| 378 | #ifdef G4BOOLDEBUG |
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| 379 | G4cout << "WARNING - Invalid call in " |
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| 380 | << "G4UnionSolid::DistanceToOut(p)" << G4endl |
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| 381 | << " Point p is outside !" << G4endl; |
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| 382 | G4cout << " p = " << p << G4endl; |
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| 383 | G4cerr << "WARNING - Invalid call in " |
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| 384 | << "G4UnionSolid::DistanceToOut(p)" << G4endl |
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| 385 | << " Point p is outside !" << G4endl; |
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| 386 | G4cerr << " p = " << p << G4endl; |
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| 387 | #endif |
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| 388 | } |
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| 389 | else |
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| 390 | { |
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| 391 | EInside positionA = fPtrSolidA->Inside(p) ; |
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| 392 | EInside positionB = fPtrSolidB->Inside(p) ; |
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| 393 | |
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| 394 | // Is this equivalent ?? |
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| 395 | // if( ! ( (positionA == kOutside)) && |
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| 396 | // (positionB == kOutside)) ) |
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| 397 | if((positionA == kInside && positionB == kInside ) || |
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| 398 | (positionA == kInside && positionB == kSurface ) || |
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| 399 | (positionA == kSurface && positionB == kInside ) ) |
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| 400 | { |
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| 401 | distout= std::max(fPtrSolidA->DistanceToOut(p), |
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| 402 | fPtrSolidB->DistanceToOut(p) ) ; |
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| 403 | } |
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| 404 | else |
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| 405 | { |
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| 406 | if(positionA == kOutside) |
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| 407 | { |
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| 408 | distout= fPtrSolidB->DistanceToOut(p) ; |
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| 409 | } |
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| 410 | else |
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| 411 | { |
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| 412 | distout= fPtrSolidA->DistanceToOut(p) ; |
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| 413 | } |
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| 414 | } |
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| 415 | } |
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| 416 | return distout; |
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| 417 | } |
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| 418 | |
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| 419 | ////////////////////////////////////////////////////////////// |
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| 420 | // |
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| 421 | // |
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| 422 | |
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| 423 | G4GeometryType G4UnionSolid::GetEntityType() const |
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| 424 | { |
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| 425 | return G4String("G4UnionSolid"); |
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| 426 | } |
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| 427 | |
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| 428 | ////////////////////////////////////////////////////////////// |
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| 429 | // |
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| 430 | // |
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| 431 | |
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| 432 | void |
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| 433 | G4UnionSolid::ComputeDimensions( G4VPVParameterisation*, |
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| 434 | const G4int, |
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| 435 | const G4VPhysicalVolume* ) |
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| 436 | { |
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| 437 | } |
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| 438 | |
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| 439 | ///////////////////////////////////////////////// |
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| 440 | // |
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| 441 | // |
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| 442 | |
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| 443 | void |
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| 444 | G4UnionSolid::DescribeYourselfTo ( G4VGraphicsScene& scene ) const |
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| 445 | { |
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| 446 | scene.AddSolid (*this); |
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| 447 | } |
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| 448 | |
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| 449 | //////////////////////////////////////////////////// |
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| 450 | // |
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| 451 | // |
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| 452 | |
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| 453 | G4Polyhedron* |
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| 454 | G4UnionSolid::CreatePolyhedron () const |
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| 455 | { |
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| 456 | G4Polyhedron* pA = fPtrSolidA->GetPolyhedron(); |
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| 457 | G4Polyhedron* pB = fPtrSolidB->GetPolyhedron(); |
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| 458 | if (pA && pB) { |
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| 459 | G4Polyhedron* resultant = new G4Polyhedron (pA->add(*pB)); |
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| 460 | return resultant; |
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| 461 | } else { |
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| 462 | std::ostringstream oss; |
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| 463 | oss << GetName() << |
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| 464 | ": one of the Boolean components has no corresponding polyhedron."; |
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| 465 | G4Exception("G4UnionSolid::CreatePolyhedron", |
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| 466 | "", JustWarning, oss.str().c_str()); |
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| 467 | return 0; |
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| 468 | } |
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| 469 | } |
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| 470 | |
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| 471 | ///////////////////////////////////////////////////////// |
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| 472 | // |
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| 473 | // |
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| 474 | |
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| 475 | G4NURBS* |
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| 476 | G4UnionSolid::CreateNURBS () const |
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| 477 | { |
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| 478 | // Take into account boolean operation - see CreatePolyhedron. |
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| 479 | // return new G4NURBSbox (1.0, 1.0, 1.0); |
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| 480 | return 0; |
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| 481 | } |
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