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 | // $Id: G4ErrorFreeTrajParam.hh,v 1.2 2007/05/29 14:41:35 gcosmo Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-03 $ |
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29 | // |
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30 | // Class Description: |
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31 | // |
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32 | // Holds the 5 independent variables of the trajectory for a |
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33 | // G4ErrorFreeTrajState object. It is not used for anything but for |
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34 | // printing, but anyhow it is updated everytime the position and |
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35 | // momentum are updated. |
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36 | |
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37 | // History: |
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38 | // - Created: Pedro Arce, September 2004 |
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39 | // -------------------------------------------------------------------- |
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40 | |
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41 | #ifndef G4ErrorFreeTrajParam_hh |
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42 | #define G4ErrorFreeTrajParam_hh |
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43 | |
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44 | #include "G4Point3D.hh" |
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45 | #include "G4Vector3D.hh" |
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46 | |
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47 | #include "globals.hh" |
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48 | #include "G4Track.hh" |
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49 | |
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50 | class G4ErrorFreeTrajParam |
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51 | { |
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52 | public: // with description |
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53 | |
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54 | G4ErrorFreeTrajParam(){} |
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55 | G4ErrorFreeTrajParam( const G4Point3D& pos, const G4Vector3D& mom ); |
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56 | // build parameters from position and momentum |
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57 | |
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58 | virtual ~G4ErrorFreeTrajParam(){} |
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59 | |
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60 | void Update( const G4Track* aTrack ); |
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61 | // update parameters from G4Track |
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62 | |
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63 | friend |
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64 | std::ostream& operator<<(std::ostream&, const G4ErrorFreeTrajParam& ts); |
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65 | |
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66 | // Set and Get methods |
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67 | |
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68 | void SetParameters( const G4Point3D& pos, const G4Vector3D& mom ); |
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69 | |
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70 | G4Vector3D GetDirection() const { return fDir;} |
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71 | |
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72 | G4double GetInvP() const { return fInvP; } |
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73 | G4double GetLambda() const { return fLambda; } |
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74 | G4double GetPhi() const { return fPhi; } |
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75 | G4double GetYPerp() const { return fYPerp; } |
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76 | G4double GetZPerp() const { return fZPerp; } |
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77 | |
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78 | private: |
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79 | |
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80 | G4Vector3D fDir; //direction to which YPerp, ZPerp refer |
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81 | G4double fInvP; // inverse of momentum |
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82 | G4double fLambda; // 90 - theta angle of direction |
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83 | G4double fPhi; // phi angle of direction |
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84 | G4double fYPerp; // Y coordinate |
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85 | G4double fZPerp; // Z coordinate |
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86 | }; |
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87 | |
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88 | #endif |
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