[807] | 1 | // |
---|
| 2 | // ******************************************************************** |
---|
| 3 | // * License and Disclaimer * |
---|
| 4 | // * * |
---|
| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
---|
| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
---|
| 7 | // * conditions of the Geant4 Software License, included in the file * |
---|
| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
---|
| 9 | // * include a list of copyright holders. * |
---|
| 10 | // * * |
---|
| 11 | // * Neither the authors of this software system, nor their employing * |
---|
| 12 | // * institutes,nor the agencies providing financial support for this * |
---|
| 13 | // * work make any representation or warranty, express or implied, * |
---|
| 14 | // * regarding this software system or assume any liability for its * |
---|
| 15 | // * use. Please see the license in the file LICENSE and URL above * |
---|
| 16 | // * for the full disclaimer and the limitation of liability. * |
---|
| 17 | // * * |
---|
| 18 | // * This code implementation is the result of the scientific and * |
---|
| 19 | // * technical work of the GEANT4 collaboration. * |
---|
| 20 | // * By using, copying, modifying or distributing the software (or * |
---|
| 21 | // * any work based on the software) you agree to acknowledge its * |
---|
| 22 | // * use in resulting scientific publications, and indicate your * |
---|
| 23 | // * acceptance of all terms of the Geant4 Software license. * |
---|
| 24 | // ******************************************************************** |
---|
| 25 | // |
---|
| 26 | // |
---|
| 27 | // $Id: OlapGenerator.cc,v 1.4 2006/06/29 17:22:56 gunter Exp $ |
---|
| 28 | // GEANT4 tag $Name: $ |
---|
| 29 | // |
---|
| 30 | // |
---|
| 31 | // -------------------------------------------------------------- |
---|
| 32 | // OlapGenerator |
---|
| 33 | // |
---|
| 34 | // Author: Martin Liendl - Martin.Liendl@cern.ch |
---|
| 35 | // |
---|
| 36 | // -------------------------------------------------------------- |
---|
| 37 | // |
---|
| 38 | #include "OlapGenerator.hh" |
---|
| 39 | #include "G4Event.hh" |
---|
| 40 | #include "G4VisExtent.hh" |
---|
| 41 | #include "G4PrimaryParticle.hh" |
---|
| 42 | #include "G4Geantino.hh" |
---|
| 43 | #include "G4ChargedGeantino.hh" |
---|
| 44 | #include "G4RunManager.hh" |
---|
| 45 | #include "G4Run.hh" |
---|
| 46 | #include "G4Event.hh" |
---|
| 47 | |
---|
| 48 | //#define OLAPDEBUG1 |
---|
| 49 | |
---|
| 50 | OlapGrid::OlapGrid() |
---|
| 51 | : count(3,0), gsize(3,3), axis(0), eventsPerRun(27) |
---|
| 52 | { |
---|
| 53 | Reset(); |
---|
| 54 | G4cout << "OlapGrid(): " << G4endl |
---|
| 55 | << " gsize: " << gsize[0] << " " << gsize[1] |
---|
| 56 | << " " << gsize[2] << G4endl; |
---|
| 57 | } |
---|
| 58 | |
---|
| 59 | void OlapGrid::Next() |
---|
| 60 | { |
---|
| 61 | G4int out = (axis+1)%3; // outer loop |
---|
| 62 | G4int in = (axis+2)%3; // inner loop |
---|
| 63 | if ( !(count[in] = (count[in]+1)%gsize[in]) ) |
---|
| 64 | { |
---|
| 65 | if( !(count[out] = (count[out]+1)%gsize[out]) ) |
---|
| 66 | { |
---|
| 67 | axis = (axis+1)%3; |
---|
| 68 | } |
---|
| 69 | } |
---|
| 70 | } |
---|
| 71 | |
---|
| 72 | OlapGenerator::OlapGenerator() : autoinc(false) |
---|
| 73 | { |
---|
| 74 | if (!ext.size()) |
---|
| 75 | { |
---|
| 76 | ext.push_back(1); |
---|
| 77 | ext.push_back(2); |
---|
| 78 | ext.push_back(3); |
---|
| 79 | } |
---|
| 80 | /* |
---|
| 81 | ext[0]=1.; |
---|
| 82 | ext[1]=2.; |
---|
| 83 | ext[2]=3.; |
---|
| 84 | */ |
---|
| 85 | } |
---|
| 86 | |
---|
| 87 | |
---|
| 88 | OlapGenerator::~OlapGenerator() |
---|
| 89 | { |
---|
| 90 | } |
---|
| 91 | |
---|
| 92 | |
---|
| 93 | void OlapGenerator::GeneratePrimaries(G4Event * anEvent) |
---|
| 94 | { |
---|
| 95 | G4int out = (grid.axis+1)%3; // outer loop |
---|
| 96 | G4int in = (grid.axis+2)%3; // inner loop |
---|
| 97 | |
---|
| 98 | posAB[grid.axis]=-ext[grid.axis]/2.; |
---|
| 99 | posAB[in]=-ext[in]/2.+ext[in]/G4double(grid.gsize[in]-1) |
---|
| 100 | *G4double(grid.count[in]); |
---|
| 101 | posAB[out]=-ext[out]/2.+ext[out]/G4double(grid.gsize[out]-1) |
---|
| 102 | *G4double(grid.count[out]); |
---|
| 103 | |
---|
| 104 | posBA = posAB; |
---|
| 105 | posBA[grid.axis]=-posBA[grid.axis]; |
---|
| 106 | |
---|
| 107 | G4ThreeVector dirAB, dirBA; |
---|
| 108 | dirAB[grid.axis] = 1; |
---|
| 109 | dirBA[grid.axis] = -1; |
---|
| 110 | |
---|
| 111 | #ifdef OLAPDEBUG1 |
---|
| 112 | G4int runID = G4RunManager::GetRunManager()->GetCurrentRun()->GetRunID(); |
---|
| 113 | G4int evtID = anEvent->GetEventID(); |
---|
| 114 | G4cout << "generator: " |
---|
| 115 | << "run=" << runID << " evt=" << evtID |
---|
| 116 | << " axis=" << grid.axis << " out=" << grid.count[out] |
---|
| 117 | << " in=" << grid.count[in] |
---|
| 118 | << " posAB=" << posAB |
---|
| 119 | << " posBA=" << posBA << G4endl; |
---|
| 120 | #endif |
---|
| 121 | |
---|
| 122 | // now generator 2 geantinos flying in opposite direction from A->B and B->A |
---|
| 123 | // ========================== |
---|
| 124 | G4ParticleDefinition* pd = G4Geantino::GeantinoDefinition(); |
---|
| 125 | |
---|
| 126 | // create 2 opposite positioned vertices |
---|
| 127 | G4PrimaryVertex* vertexAB = |
---|
| 128 | new G4PrimaryVertex(posAB,0); |
---|
| 129 | G4PrimaryVertex* vertexBA = |
---|
| 130 | new G4PrimaryVertex(posBA,0); |
---|
| 131 | |
---|
| 132 | // create one geantino per vertex as primary |
---|
| 133 | G4double mass = pd->GetPDGMass(); |
---|
| 134 | G4double energy = 1. + mass; |
---|
| 135 | G4double pmom = std::sqrt(energy*energy-mass*mass); |
---|
| 136 | G4double pxAB = pmom*dirAB.x(); |
---|
| 137 | G4double pyAB = pmom*dirAB.y(); |
---|
| 138 | G4double pzAB = pmom*dirAB.z(); |
---|
| 139 | G4double pxBA = pmom*dirBA.x(); |
---|
| 140 | G4double pyBA = pmom*dirBA.y(); |
---|
| 141 | G4double pzBA = pmom*dirBA.z(); |
---|
| 142 | |
---|
| 143 | G4PrimaryParticle* particleAB = new G4PrimaryParticle(pd,pxAB,pyAB,pzAB); |
---|
| 144 | G4PrimaryParticle* particleBA = new G4PrimaryParticle(pd,pxBA,pyBA,pzBA); |
---|
| 145 | particleAB->SetMass( mass ); |
---|
| 146 | particleBA->SetMass( mass ); |
---|
| 147 | particleAB->SetCharge(0.); |
---|
| 148 | particleBA->SetCharge(0.); |
---|
| 149 | vertexAB->SetPrimary( particleAB ); |
---|
| 150 | vertexBA->SetPrimary( particleBA ); |
---|
| 151 | anEvent->AddPrimaryVertex( vertexAB ); |
---|
| 152 | anEvent->AddPrimaryVertex( vertexBA ); |
---|
| 153 | |
---|
| 154 | // ok, set all counters to be ready for the next position |
---|
| 155 | if (autoinc) |
---|
| 156 | grid.Next(); |
---|
| 157 | /* |
---|
| 158 | if ( !(count[in] = (count[in]+1)%grid[in]) ) { |
---|
| 159 | if( !(count[out] = (count[out]+1)%grid[out]) ) { |
---|
| 160 | axis = (axis+1)%3; |
---|
| 161 | } |
---|
| 162 | } |
---|
| 163 | */ |
---|
| 164 | |
---|
| 165 | } |
---|
| 166 | |
---|
| 167 | |
---|
| 168 | void OlapGenerator::SetExtent(const G4VisExtent & anExt) |
---|
| 169 | { |
---|
| 170 | ext[0]=(anExt.GetXmax()-anExt.GetXmin()); |
---|
| 171 | ext[1]=(anExt.GetYmax()-anExt.GetYmin()); |
---|
| 172 | ext[2]=(anExt.GetZmax()-anExt.GetZmin()); |
---|
| 173 | for (G4int i=0; i<3; i++) |
---|
| 174 | ext[i] += ext[i]/2000.; // enlarge by 1% |
---|
| 175 | |
---|
| 176 | Reset(); |
---|
| 177 | |
---|
| 178 | } |
---|
| 179 | |
---|
| 180 | void OlapGenerator::SetExtent(G4double e) |
---|
| 181 | { |
---|
| 182 | ext[0]=e; |
---|
| 183 | ext[1]=e; |
---|
| 184 | ext[2]=e; |
---|
| 185 | } |
---|
| 186 | |
---|
| 187 | |
---|
| 188 | void OlapGenerator::Reset() |
---|
| 189 | { |
---|
| 190 | grid.Reset(); |
---|
| 191 | /* |
---|
| 192 | for (G4int i=0; i<3; i++) { |
---|
| 193 | count[i]=0; |
---|
| 194 | } |
---|
| 195 | |
---|
| 196 | axis=0; |
---|
| 197 | */ |
---|
| 198 | } |
---|
| 199 | |
---|
| 200 | |
---|
| 201 | void OlapGenerator::SetGrid(G4int x, G4int y, G4int z) |
---|
| 202 | { |
---|
| 203 | if (x>2) |
---|
| 204 | grid.gsize[0]=x; |
---|
| 205 | else |
---|
| 206 | G4cerr << "Warning in OlapGenerator::SetGrid(): wrong x-grid parameter: " << x << G4endl; |
---|
| 207 | |
---|
| 208 | |
---|
| 209 | if (y>2) |
---|
| 210 | grid.gsize[1]=y; |
---|
| 211 | else |
---|
| 212 | G4cerr << "Warning in OlapGenerator::SetGrid(): wrong y-grid parameter: " << y << G4endl; |
---|
| 213 | |
---|
| 214 | if (z>2) |
---|
| 215 | grid.gsize[2]=z; |
---|
| 216 | else |
---|
| 217 | G4cerr << "Warning in OlapGenerator::SetGrid(): wrong z-grid parameter: " << z << G4endl; |
---|
| 218 | |
---|
| 219 | grid.eventsPerRun = x*y + y*z + x*z; |
---|
| 220 | Reset(); |
---|
| 221 | } |
---|