| 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 | // FredSensitive.cc
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| 28 | //
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| 29 | // Implementation of our sensitive test volume
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| 30 | //
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| 31 |
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| 32 | #include "FredSensitive.hh"
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| 33 | #include "G4StepStatus.hh"
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| 34 |
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| 35 | //
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| 36 | // Constructor
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| 37 | //
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| 38 | FredSensitive::FredSensitive( G4String name ) : G4VSensitiveDetector( name )
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| 39 | {
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| 40 | //
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| 41 | // Now we play the c++ guessing game: which inherited
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| 42 | // parameters do we fill? Should be obvious, but,
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| 43 | // the only clue I got was in the examples.
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| 44 | //
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| 45 | // IMHO: it would be
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| 46 | // better to have an inherited class with more arguments
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| 47 | // whose constructor is explicitly invoked here.
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| 48 | // Then there would be no ambiguities.
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| 49 | //
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| 50 | collectionName.insert( "fredsStuff" );
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| 51 | }
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| 52 |
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| 53 | //
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| 54 | // Destructor
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| 55 | //
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| 56 | // Odd we don't bother deleting the hits here... shouldn't we?
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| 57 | // Perhaps it doesn't matter, since G4 is pretty much static when
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| 58 | // it comes to detector configuration. But, we're all c++ experts,
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| 59 | // so we need to go through the moves.
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| 60 | //
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| 61 | FredSensitive::~FredSensitive() {;}
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| 62 |
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| 63 | //
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| 64 | // Initialize
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| 65 | //
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| 66 | // Despite the misnomer, this is done at the beginning of each event.
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| 67 | // HCE is a meta-list of hit collections where one is allowed to store
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| 68 | // stuff.
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| 69 | //
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| 70 | void FredSensitive::Initialize( G4HCofThisEvent *HCE )
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| 71 | {
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| 72 | hits = new FredHitCollection( SensitiveDetectorName, collectionName[0] );
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| 73 |
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| 74 | static int HCID = -1;
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| 75 | if (HCID < 0) HCID = GetCollectionID(0);
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| 76 | HCE->AddHitsCollection( HCID, hits );
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| 77 | }
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| 78 |
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| 79 | //
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| 80 | // ProcessHits
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| 81 | //
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| 82 | // Another misnomer: this member function processes one step in the
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| 83 | // sensitive volume.
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| 84 | //
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| 85 | G4bool FredSensitive::ProcessHits( G4Step *step, G4TouchableHistory * )
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| 86 | {
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| 87 | G4bool imHit = false;
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| 88 |
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| 89 | //
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| 90 | // Okay, for test purposes, I want to store hits that intersect
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| 91 | // the boundary of the detector
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| 92 | //
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| 93 | if (step->GetPreStepPoint()->GetStepStatus() == fGeomBoundary) {
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| 94 | FredHit *hit = new FredHit( step->GetPreStepPoint()->GetPosition(), true, step->GetTrack() );
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| 95 | hits->insert( hit );
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| 96 | imHit = true;
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| 97 | }
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| 98 | if (step->GetPostStepPoint()->GetStepStatus() == fGeomBoundary) {
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| 99 | FredHit *hit = new FredHit( step->GetPostStepPoint()->GetPosition(), false, step->GetTrack() );
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| 100 | hits->insert( hit );
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| 101 | imHit = true;
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| 102 | }
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| 103 |
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| 104 | return imHit;
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| 105 | }
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| 106 |
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