| 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 | // -------------------------------------------------------------------
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| 28 | // GEANT4 Class file
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| 29 | //
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| 30 | // For information related to this code contact:
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| 31 | //
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| 32 | // File name: G4CrossSectionComposite
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| 33 | //
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| 34 | // Author:
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| 35 | //
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| 36 | // Creation date: 15 April 1999
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| 37 | //
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| 38 | // Modifications:
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| 39 | //
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| 40 | // -------------------------------------------------------------------
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| 41 |
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| 42 | #include "globals.hh"
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| 43 | #include "G4CrossSectionComposite.hh"
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| 44 | #include "G4VCrossSectionSource.hh"
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| 45 | #include "G4KineticTrack.hh"
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| 46 | #include "G4CrossSectionVector.hh"
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| 47 |
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| 48 | G4CrossSectionComposite::G4CrossSectionComposite()
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| 49 | { }
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| 50 |
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| 51 |
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| 52 | G4CrossSectionComposite::~G4CrossSectionComposite()
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| 53 | { }
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| 54 |
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| 55 |
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| 56 | G4bool G4CrossSectionComposite::operator==(const G4CrossSectionComposite &right) const
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| 57 | {
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| 58 | return (this == (G4CrossSectionComposite*) &right);
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| 59 | }
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| 60 |
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| 61 |
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| 62 | G4bool G4CrossSectionComposite::operator!=(const G4CrossSectionComposite &right) const
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| 63 | {
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| 64 | return (this != (G4CrossSectionComposite*) &right);
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| 65 | }
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| 66 |
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| 67 |
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| 68 | G4double G4CrossSectionComposite::CrossSection(const G4KineticTrack& trk1,
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| 69 | const G4KineticTrack& trk2) const
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| 70 | {
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| 71 | // Cross section of composite is the sum of components cross sections
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| 72 |
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| 73 | G4double crossSection = 0.;
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| 74 | G4double ecm = (trk1.Get4Momentum() + trk2.Get4Momentum()).mag();
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| 75 |
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| 76 | const G4CrossSectionVector* components = GetComponents();
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| 77 | if (components != 0)
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| 78 | {
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| 79 | G4int nComponents = this->GetComponents()->size();
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| 80 | // G4int nValid = 0;
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| 81 |
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| 82 | G4int i;
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| 83 | for (i=0; i<nComponents; i++)
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| 84 | {
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| 85 | G4CrossSectionSourcePtr componentPtr = (*components)[i];
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| 86 | G4VCrossSectionSource* component = componentPtr();
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| 87 | if (component->IsValid(ecm))
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| 88 | {
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| 89 | crossSection += component->CrossSection(trk1,trk2);
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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 | return crossSection;
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| 95 | }
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| 96 |
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| 97 |
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| 98 | G4bool G4CrossSectionComposite::IsValid(G4double e) const
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| 99 | {
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| 100 | // The composite is valid if any of its components are valid
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| 101 | G4bool answer = false;
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| 102 | const G4CrossSectionVector* components = GetComponents();
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| 103 | if (components != 0)
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| 104 | {
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| 105 | G4int n = components->size();
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| 106 | G4int i;
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| 107 | for (i=0; i<n; i++)
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| 108 | {
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| 109 | G4CrossSectionSourcePtr componentPtr = (*components)[i];
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| 110 | G4VCrossSectionSource* component = componentPtr();
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| 111 | if (component->IsValid(e))
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| 112 | {
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| 113 | answer = true;
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| 114 | break;
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| 115 | }
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| 116 | }
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| 117 | }
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| 118 | return answer;
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| 119 | }
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| 120 |
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