[819] | 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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