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25 //
26 #ifdef USE_INFERENCE
27 # ifndef PAR04MLFASTSIMMODEL_HH
28 # define PAR04MLFASTSIMMODEL_HH
29
30 # include "G4VFastSimulationModel.hh" // for G4VFastSimulationModel
31
32 # include <G4String.hh> // for G4String
33 # include <G4ThreeVector.hh> // for G4ThreeVector
34 # include <G4Types.hh> // for G4bool, G4double
35 # include <memory> // for unique_ptr
36 # include <vector> // for vector
37 class G4FastSimHitMaker;
38 class G4FastStep;
39 class G4FastHit;
40 class G4FastTrack;
41 class G4ParticleDefinition;
42 class G4Region;
43 class Par04InferenceSetup;
44
45 /**
46 * @brief Inference for the fast simulation model.
47 *
48 * Parametrisation of electrons, positrons, and gammas. Energy is deposited and
49 * distributed according to ML inference. This class is only a shell that
50 * triggers the inference, asks for values, and deposits energies at
51 * given positions.
52 *
53 **/
54
55 class Par04MLFastSimModel : public G4VFastSimulationModel
56 {
57 public:
58 Par04MLFastSimModel(G4String, G4Region*);
59 Par04MLFastSimModel(G4String);
60 ~Par04MLFastSimModel();
61 /// There are no kinematics constraints. True is returned.
62 virtual G4bool ModelTrigger(const G4FastTrack&) final;
63 /// Model is applicable to electrons, positrons, and photons.
64 virtual G4bool IsApplicable(const G4ParticleDefinition&) final;
65 /// Take particle out of the full simulation (kill it at the entrance
66 /// depositing all the energy). Calculate energy deposited in the detector
67 /// from the NN model inference.
68 virtual void DoIt(const G4FastTrack&, G4FastStep&) final;
69
70 private:
71 /// Inference model that is NN aware
72 Par04InferenceSetup* fInference;
73 /// Inference model that is NN aware
74 /// Helper class for creation of hits within the sensitive detector
75 std::unique_ptr<G4FastSimHitMaker> fHitMaker;
76 std::unique_ptr<G4FastSimHitMaker> fParallelHitMaker;
77 /// Vector of energy values
78 std::vector<G4double> fEnergies;
79 /// Vector of positions corresponding to energy values (const for one NN
80 /// model)
81 std::vector<G4ThreeVector> fPositions;
82 };
83 # endif /* PAR04INFERENCEMODEL_HH */
84 #endif
85