| 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 | // MODULE: G4SPSPosDistribution.hh
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| 29 | //
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| 30 | // Version: 1.0
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| 31 | // Date: 5/02/04
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| 32 | // Author: Fan Lei
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| 33 | // Organisation: QinetiQ ltd.
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| 34 | // Customer: ESA/ESTEC
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| 35 | //
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| 36 | ///////////////////////////////////////////////////////////////////////////////
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| 37 | //
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| 38 | // CHANGE HISTORY
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| 39 | // --------------
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| 40 | //
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| 41 | //
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| 42 | // Version 1.0, 05/02/2004, Fan Lei, Created.
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| 43 | // Based on the G4GeneralParticleSource class in Geant4 v6.0
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| 44 | //
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| 45 | ///////////////////////////////////////////////////////////////////////////////
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| 46 | //
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| 47 | //
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| 48 | // Class Description:
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| 49 | //
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| 50 | // To generate the position of a primary vertex according to the defined distribution
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| 51 | //
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| 52 | ///////////////////////////////////////////////////////////////////////////////
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| 53 | //
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| 54 | // MEMBER FUNCTIONS
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| 55 | // ----------------
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| 56 | //
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| 57 | // G4SPSPosDistribution ()
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| 58 | // Constructor: Initializes variables and instantiates the Navigator class
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| 59 | //
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| 60 | // ~G4SPSPosDistribution ()
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| 61 | // Destructor:
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| 62 | //
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| 63 | // void SetPosDisType(G4String)
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| 64 | // Allows user to choose Point, Plane, Surface or Volume source
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| 65 | // position distributions.
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| 66 | //
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| 67 | // void SetPosDisShape(G4String)
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| 68 | // Allows the user to choose the particular shape they wish for the
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| 69 | // position distribution. Choices are Square, Circle, Ellipse, Rectangle,
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| 70 | // Sphere, Ellipsoid, Cylinder, Parallelepiped.
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| 71 | //
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| 72 | // void SetCentreCoords(G4ThreeVector)
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| 73 | // Sets the co-ordinates of the centre of the position distribution.
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| 74 | //
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| 75 | // void SetPosRot1(G4ThreeVector)
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| 76 | // Used to specify the co-ordinate system for the position distribution
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| 77 | // along with SetPosRot2. SetPosRot1 sets the vector x' and need not be
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| 78 | // a unit vector.
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| 79 | //
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| 80 | // void SetPosRot2(G4ThreeVector)
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| 81 | // Used in connection with SetPosRot1. This sets a vector in the plane
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| 82 | // x'y'. By a series of cross products x', y', z' are generated. Again
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| 83 | // need not be a unit vector.
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| 84 | //
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| 85 | // void SetHalfX(G4double)
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| 86 | // Sets the half length in x.
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| 87 | //
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| 88 | // void SetHalfY(G4double)
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| 89 | // Sets the half length in y.
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| 90 | //
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| 91 | // void SetHalfZ(G4double)
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| 92 | // Sets the half length in z.
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| 93 | //
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| 94 | // void SetRadius(G4double)
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| 95 | // Sets the radius where appropriate for source distribution shapes.
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| 96 | //
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| 97 | // void SetRadius0(G4double)
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| 98 | // Sets the inner radius where appropriate for source distribution shapes.
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| 99 | //
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| 100 | // void SetBeamSigmaInR(G4double);
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| 101 | // Sets the sigma for 1D beam
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| 102 | //
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| 103 | // void SetBeamSigmaInX(G4double);
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| 104 | // Sets the first sigma for 2D beam
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| 105 | //
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| 106 | // void SetBeamSigmaInY(G4double);
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| 107 | // Sets the second sigma for 2D beam
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| 108 | //
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| 109 | // void SetParAlpha(G4double)
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| 110 | // Sets the angle Alpha in the Parallelepiped shapes.
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| 111 | //
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| 112 | // void SetParTheta(G4double)
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| 113 | // Sets the angle Theta in the Parallelepiped shapes.
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| 114 | //
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| 115 | // void SetParPhi(G4double)
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| 116 | // Sets the angle Phi in the Parallelepiped shapes.
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| 117 | //
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| 118 | // void ConfineSourceToVolume(G4String)
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| 119 | // Used to confine the start positions to a particular volume.
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| 120 | //
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| 121 | // void SetBiasRndm (G4SPSRandomGenerator* a) { posRndm = a ; };
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| 122 | // Sets the biased random number generator
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| 123 | //
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| 124 | // G4ThreeVector GenerateOne();
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| 125 | // Generate one random position
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| 126 | //
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| 127 | // void SetVerbosity(G4int)
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| 128 | // Sets the verbosity level.
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| 129 | //
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| 130 | ///////////////////////////////////////////////////////////////////////////////
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| 131 | //
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| 132 | #ifndef G4SPSPosDistribution_h
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| 133 | #define G4SPSPosDistribution_h 1
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| 134 |
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| 135 | #include "G4Navigator.hh"
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| 136 | #include "G4SPSRandomGenerator.hh"
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| 137 |
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| 138 | class G4SPSPosDistribution
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| 139 | {
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| 140 | //
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| 141 | friend class G4SPSAngDistribution;
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| 142 | public:
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| 143 | G4SPSPosDistribution ();
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| 144 | ~G4SPSPosDistribution ();
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| 145 |
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| 146 | // methods to create source position dist.
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| 147 | void SetPosDisType(G4String); // Point, Plane, Surface, Volume
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| 148 | inline G4String GetPosDisType() { return SourcePosType; };
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| 149 | void SetPosDisShape(G4String);
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| 150 | inline G4String GetPosDisShape() { return Shape; };
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| 151 | // SetPosDisShape - Square, Circle, Annulus, Ellipse, Rectangle, Sphere,
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| 152 | // Ellipsoid, Cylinder, Right (parallelepiped).
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| 153 | void SetCentreCoords(G4ThreeVector);
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| 154 | inline G4ThreeVector GetCentreCoords() { return CentreCoords; } ;
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| 155 | void SetPosRot1(G4ThreeVector);
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| 156 | void SetPosRot2(G4ThreeVector);
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| 157 | void SetHalfX(G4double);
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| 158 | inline G4double GetHalfX() { return halfx; } ;
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| 159 | void SetHalfY(G4double);
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| 160 | inline G4double GetHalfY() { return halfy; } ;
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| 161 | void SetHalfZ(G4double);
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| 162 | inline G4double GetHalfZ() { return halfz; } ;
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| 163 | void SetRadius(G4double);
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| 164 | inline G4double GetRadius() { return Radius; };
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| 165 | void SetRadius0(G4double);
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| 166 | void SetBeamSigmaInR(G4double);
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| 167 | void SetBeamSigmaInX(G4double);
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| 168 | void SetBeamSigmaInY(G4double);
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| 169 | void SetParAlpha(G4double);
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| 170 | void SetParTheta(G4double);
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| 171 | void SetParPhi(G4double);
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| 172 | void ConfineSourceToVolume(G4String);
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| 173 | //
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| 174 | void SetBiasRndm (G4SPSRandomGenerator* a) { posRndm = a ; };
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| 175 | // Set the verbosity level.
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| 176 | void SetVerbosity(G4int a) {verbosityLevel = a; } ;
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| 177 | //
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| 178 | G4ThreeVector GenerateOne();
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| 179 |
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| 180 | private:
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| 181 |
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| 182 | void GenerateRotationMatrices();
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| 183 | // the following routines generate the source position
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| 184 | void GeneratePointSource();
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| 185 | void GeneratePointsInBeam();
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| 186 | void GeneratePointsInPlane();
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| 187 | void GeneratePointsOnSurface();
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| 188 | void GeneratePointsInVolume();
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| 189 |
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| 190 | G4bool IsSourceConfined();
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| 191 |
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| 192 | private:
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| 193 |
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| 194 | // Position distribution Variables
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| 195 | G4String SourcePosType; //Point,Plane,Surface,Volume
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| 196 | G4String Shape; //Circle,Square,Rectangle etc..
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| 197 | G4double halfx, halfy, halfz; //half lengths
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| 198 | G4double Radius; //Radius for circles or spheres
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| 199 | G4double Radius0; // The inner radius of an annulus
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| 200 | G4double SR,SX,SY; // Standard deviation in raduial, x, y for beam type source
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| 201 | G4ThreeVector CentreCoords; // Coords of centre of input shape
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| 202 | G4ThreeVector Rotx, Roty, Rotz; // Unit vectors defining rotation matrix
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| 203 | G4double ParAlpha, ParTheta, ParPhi; //Angle for Right Parallellepipeds
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| 204 | G4bool Confine; //If true confines source distribution to VolName
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| 205 | G4String VolName;
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| 206 | G4ThreeVector SideRefVec1,SideRefVec2,SideRefVec3; //Side rotation matrices
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| 207 | G4ThreeVector particle_position; // the final particle position to be returned
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| 208 | //
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| 209 | G4Navigator *gNavigator;
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| 210 | //
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| 211 | G4SPSRandomGenerator* posRndm; // biased random generator
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| 212 | // Verbosity
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| 213 | G4int verbosityLevel;
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| 214 |
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| 215 | };
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| 216 |
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| 217 | #endif
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| 218 |
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| 219 |
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| 220 |
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| 221 |
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