| [1350] | 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: G4PartialPhantomParameterisation.cc,v 1.3 2010/12/15 07:39:00 gunter Exp $
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| 28 | // GEANT4 tag $Name: geant4-09-04-ref-00 $
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| 29 | //
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| 30 | //
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| 31 | // class G4PartialPhantomParameterisation implementation
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| 32 | //
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| 33 | // May 2007 Pedro Arce (CIEMAT), first version
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| 34 | //
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| 35 | // --------------------------------------------------------------------
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| 36 |
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| 37 | #include "G4PartialPhantomParameterisation.hh"
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| 38 |
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| 39 | #include "globals.hh"
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| 40 | #include "G4Material.hh"
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| 41 | #include "G4VSolid.hh"
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| 42 | #include "G4VPhysicalVolume.hh"
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| 43 | #include "G4LogicalVolume.hh"
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| 44 | #include "G4VVolumeMaterialScanner.hh"
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| 45 | #include "G4GeometryTolerance.hh"
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| 46 |
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| 47 | #include <list>
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| 48 |
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| 49 | //------------------------------------------------------------------
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| 50 | G4PartialPhantomParameterisation::G4PartialPhantomParameterisation()
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| 51 | : G4PhantomParameterisation()
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| 52 | {
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| 53 | }
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| 54 |
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| 55 |
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| 56 | //------------------------------------------------------------------
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| 57 | G4PartialPhantomParameterisation::~G4PartialPhantomParameterisation()
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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 | void G4PartialPhantomParameterisation::
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| 63 | ComputeTransformation(const G4int copyNo, G4VPhysicalVolume *physVol ) const
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| 64 | {
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| 65 | // Voxels cannot be rotated, return translation
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| 66 | //
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| 67 | G4ThreeVector trans = GetTranslation( copyNo );
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| 68 | physVol->SetTranslation( trans );
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| 69 | }
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| 70 |
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| 71 |
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| 72 | //------------------------------------------------------------------
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| 73 | G4ThreeVector G4PartialPhantomParameterisation::
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| 74 | GetTranslation(const G4int copyNo ) const
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| 75 | {
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| 76 | CheckCopyNo( copyNo );
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| 77 |
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| 78 | size_t nx;
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| 79 | size_t ny;
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| 80 | size_t nz;
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| 81 | ComputeVoxelIndices( copyNo, nx, ny, nz );
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| 82 |
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| 83 | G4ThreeVector trans( (2*nx+1)*fVoxelHalfX - fContainerWallX,
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| 84 | (2*ny+1)*fVoxelHalfY - fContainerWallY,
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| 85 | (2*nz+1)*fVoxelHalfZ - fContainerWallZ);
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| 86 | return trans;
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| 87 | }
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| 88 |
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| 89 |
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| 90 | //------------------------------------------------------------------
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| 91 | G4Material* G4PartialPhantomParameterisation::
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| 92 | ComputeMaterial(const G4int copyNo, G4VPhysicalVolume *, const G4VTouchable *)
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| 93 | {
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| 94 | CheckCopyNo( copyNo );
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| 95 | size_t matIndex = GetMaterialIndex(copyNo);
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| 96 |
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| 97 | return fMaterials[ matIndex ];
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| 98 | }
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| 99 |
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| 100 |
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| 101 | //------------------------------------------------------------------
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| 102 | size_t G4PartialPhantomParameterisation::
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| 103 | GetMaterialIndex( size_t copyNo ) const
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| 104 | {
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| 105 | CheckCopyNo( copyNo );
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| 106 |
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| 107 | if( !fMaterialIndices ) { return 0; }
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| 108 |
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| 109 | return *(fMaterialIndices+copyNo);
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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 | size_t G4PartialPhantomParameterisation::
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| 115 | GetMaterialIndex( size_t nx, size_t ny, size_t nz ) const
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| 116 | {
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| 117 | size_t copyNo = nx + fNoVoxelX*ny + fNoVoxelXY*nz;
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| 118 | return GetMaterialIndex( copyNo );
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| 119 | }
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| 120 |
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| 121 |
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| 122 | //------------------------------------------------------------------
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| 123 | G4Material* G4PartialPhantomParameterisation::
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| 124 | GetMaterial( size_t nx, size_t ny, size_t nz) const
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| 125 | {
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| 126 | return fMaterials[GetMaterialIndex(nx,ny,nz)];
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| 127 | }
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| 128 |
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| 129 |
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| 130 | //------------------------------------------------------------------
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| 131 | G4Material* G4PartialPhantomParameterisation::
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| 132 | GetMaterial( size_t copyNo ) const
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| 133 | {
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| 134 | return fMaterials[GetMaterialIndex(copyNo)];
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| 135 | }
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| 136 |
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| 137 |
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| 138 | //------------------------------------------------------------------
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| 139 | void G4PartialPhantomParameterisation::
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| 140 | ComputeVoxelIndices(const G4int copyNo, size_t& nx,
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| 141 | size_t& ny, size_t& nz ) const
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| 142 | {
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| 143 | CheckCopyNo( copyNo );
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| 144 |
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| 145 | std::multimap<G4int,G4int>::const_iterator ite =
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| 146 | fFilledIDs.lower_bound(size_t(copyNo));
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| 147 | G4int dist = std::distance( fFilledIDs.begin(), ite );
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| 148 | nz = size_t(dist/fNoVoxelY);
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| 149 | ny = size_t( dist%fNoVoxelY );
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| 150 |
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| 151 | G4int ifmin = (*ite).second;
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| 152 | G4int nvoxXprev;
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| 153 | if( dist != 0 ) {
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| 154 | ite--;
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| 155 | nvoxXprev = (*ite).first;
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| 156 | } else {
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| 157 | nvoxXprev = -1;
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| 158 | }
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| 159 |
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| 160 | nx = ifmin+copyNo-nvoxXprev-1;
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| 161 | }
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| 162 |
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| 163 |
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| 164 | //------------------------------------------------------------------
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| 165 | G4int G4PartialPhantomParameterisation::
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| 166 | GetReplicaNo( const G4ThreeVector& localPoint, const G4ThreeVector& localDir )
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| 167 | {
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| 168 | // Check the voxel numbers corresponding to localPoint
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| 169 | // When a particle is on a surface, it may be between -kCarTolerance and
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| 170 | // +kCartolerance. By a simple distance as:
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| 171 | // G4int nx = G4int( (localPoint.x()+)/fVoxelHalfX/2.);
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| 172 | // those between -kCartolerance and 0 will be placed on voxel N-1 and those
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| 173 | // between 0 and kCarTolerance on voxel N.
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| 174 | // To avoid precision problems place the tracks that are on the surface on
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| 175 | // voxel N-1 if they have negative direction and on voxel N if they have
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| 176 | // positive direction.
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| 177 | // Add +kCarTolerance so that they are first placed on voxel N, and then
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| 178 | // if the direction is negative substract 1
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| 179 |
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| 180 | G4double fx = (localPoint.x()+fContainerWallX+kCarTolerance)/(fVoxelHalfX*2.);
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| 181 | G4int nx = G4int(fx);
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| 182 |
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| 183 | G4double fy = (localPoint.y()+fContainerWallY+kCarTolerance)/(fVoxelHalfY*2.);
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| 184 | G4int ny = G4int(fy);
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| 185 |
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| 186 | G4double fz = (localPoint.z()+fContainerWallZ+kCarTolerance)/(fVoxelHalfZ*2.);
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| 187 | G4int nz = G4int(fz);
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| 188 |
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| 189 | // If it is on the surface side, check the direction: if direction is
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| 190 | // negative place it on the previous voxel (if direction is positive it is
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| 191 | // already in the next voxel...).
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| 192 | // Correct also cases where n = -1 or n = fNoVoxel. It is always traced to be
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| 193 | // due to multiple scattering: track is entering a voxel but multiple
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| 194 | // scattering changes the angle towards outside
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| 195 | //
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| 196 | if( fx - nx < kCarTolerance/fVoxelHalfX )
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| 197 | {
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| 198 | if( localDir.x() < 0 )
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| 199 | {
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| 200 | if( nx != 0 )
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| 201 | {
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| 202 | nx -= 1;
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| 203 | }
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| 204 | }
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| 205 | else
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| 206 | {
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| 207 | if( nx == G4int(fNoVoxelX) )
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| 208 | {
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| 209 | nx -= 1;
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| 210 | }
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| 211 | }
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| 212 | }
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| 213 | if( fy - ny < kCarTolerance/fVoxelHalfY )
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| 214 | {
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| 215 | if( localDir.y() < 0 )
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| 216 | {
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| 217 | if( ny != 0 )
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| 218 | {
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| 219 | ny -= 1;
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| 220 | }
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| 221 | }
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| 222 | else
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| 223 | {
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| 224 | if( ny == G4int(fNoVoxelY) )
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| 225 | {
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| 226 | ny -= 1;
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| 227 | }
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| 228 | }
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| 229 | }
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| 230 | if( fz - nz < kCarTolerance/fVoxelHalfZ )
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| 231 | {
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| 232 | if( localDir.z() < 0 )
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| 233 | {
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| 234 | if( nz != 0 )
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| 235 | {
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| 236 | nz -= 1;
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| 237 | }
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| 238 | }
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| 239 | else
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| 240 | {
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| 241 | if( nz == G4int(fNoVoxelZ) )
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| 242 | {
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| 243 | nz -= 1;
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| 244 | }
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| 245 | }
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| 246 | }
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| 247 |
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| 248 | // Check if there are still errors
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| 249 | //
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| 250 | G4bool isOK = true;
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| 251 | if( nx < 0 )
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| 252 | {
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| 253 | nx = 0;
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| 254 | isOK = false;
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| 255 | }
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| 256 | else if( nx >= G4int(fNoVoxelX) )
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| 257 | {
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| 258 | nx = fNoVoxelX-1;
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| 259 | isOK = false;
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| 260 | }
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| 261 | if( ny < 0 )
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| 262 | {
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| 263 | ny = 0;
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| 264 | isOK = false;
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| 265 | }
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| 266 | else if( ny >= G4int(fNoVoxelY) )
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| 267 | {
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| 268 | ny = fNoVoxelY-1;
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| 269 | isOK = false;
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| 270 | }
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| 271 | if( nz < 0 )
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| 272 | {
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| 273 | nz = 0;
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| 274 | isOK = false;
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| 275 | }
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| 276 | else if( nz >= G4int(fNoVoxelZ) )
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| 277 | {
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| 278 | nz = fNoVoxelZ-1;
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| 279 | isOK = false;
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| 280 | }
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| 281 | if( !isOK )
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| 282 | {
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| 283 | G4cerr << "WARNING - G4PartialPhantomParameterisation::GetReplicaNo()"
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| 284 | << G4endl
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| 285 | << " LocalPoint: " << localPoint << G4endl
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| 286 | << " LocalDir: " << localDir << G4endl
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| 287 | << " Voxel container size: " << fContainerWallX
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| 288 | << " " << fContainerWallY << " " << fContainerWallZ << G4endl
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| 289 | << " LocalPoint - wall: "
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| 290 | << localPoint.x()-fContainerWallX << " "
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| 291 | << localPoint.y()-fContainerWallY << " "
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| 292 | << localPoint.z()-fContainerWallZ << G4endl;
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| 293 | G4Exception("G4PartialPhantomParameterisation::GetReplicaNo()",
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| 294 | "Wrong-copy-number", JustWarning,
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| 295 | "Corrected the copy number! It was negative or too big");
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| 296 | }
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| 297 |
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| 298 | G4int nyz = nz*fNoVoxelY+ny;
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| 299 | std::multimap<G4int,G4int>::iterator ite = fFilledIDs.begin();
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| 300 | /*
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| 301 | for( ite = fFilledIDs.begin(); ite != fFilledIDs.end(); ite++ )
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| 302 | {
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| 303 | G4cout << " G4PartialPhantomParameterisation::GetReplicaNo filled "
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| 304 | << (*ite).first << " , " << (*ite).second << std::endl;
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| 305 | }
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| 306 | */
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| 307 | ite = fFilledIDs.begin();
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| 308 |
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| 309 | advance(ite,nyz);
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| 310 | std::multimap<G4int,G4int>::iterator iteant = ite; iteant--;
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| 311 | G4int copyNo = (*iteant).first + 1 + ( nx - (*ite).second );
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| 312 | /*
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| 313 | G4cout << " G4PartialPhantomParameterisation::GetReplicaNo getting copyNo "
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| 314 | << copyNo << " nyz " << nyz << " (*iteant).first "
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| 315 | << (*iteant).first << " (*ite).second " << (*ite).second << G4endl;
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| 316 |
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| 317 | G4cout << " G4PartialPhantomParameterisation::GetReplicaNo " << copyNo
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| 318 | << " nx " << nx << " ny " << ny << " nz " << nz
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| 319 | << " localPoint " << localPoint << " localDir " << localDir << G4endl;
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| 320 | */
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| 321 | return copyNo;
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| 322 | }
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| 323 |
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| 324 |
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| 325 | //------------------------------------------------------------------
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| 326 | void G4PartialPhantomParameterisation::CheckCopyNo( const G4int copyNo ) const
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| 327 | {
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| 328 | if( copyNo < 0 || copyNo >= G4int(fNoVoxel) )
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| 329 | {
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| 330 | G4cerr << "ERROR - G4PartialPhantomParameterisation::CheckCopyNo()"
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| 331 | << G4endl
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| 332 | << " Copy number: " << copyNo << G4endl
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| 333 | << " Total number of voxels: " << fNoVoxel << G4endl;
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| 334 | G4Exception("G4PartialPhantomParameterisation::CheckCopyNo()",
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| 335 | "Wrong-copy-number", FatalErrorInArgument,
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| 336 | "Copy number is negative or too big!");
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| 337 | }
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| 338 | }
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| 339 |
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| 340 |
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| 341 | //------------------------------------------------------------------
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| 342 | void G4PartialPhantomParameterisation::BuildContainerWalls()
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| 343 | {
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| 344 | fContainerWallX = fNoVoxelX * fVoxelHalfX;
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| 345 | fContainerWallY = fNoVoxelY * fVoxelHalfY;
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| 346 | fContainerWallZ = fNoVoxelZ * fVoxelHalfZ;
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| 347 | }
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