| 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: G4CurveRayIntersection.hh,v 1.6 2007/05/11 13:49:31 gcosmo Exp $
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| 28 | // GEANT4 tag $Name: geant4-09-04-beta-01 $
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| 29 | //
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| 30 | // ----------------------------------------------------------------------
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| 31 | // Class G4CurveRayIntersection
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| 32 | //
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| 33 | // Class Description:
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| 34 | //
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| 35 | // Class capable of storing both the parametric and the non-parametric
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| 36 | // representation of a intersection point on a curve. It's subclassed
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| 37 | // from G4CurvePoint.
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| 38 |
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| 39 | // Author: J.Sulkimo, P.Urban.
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| 40 | // Revisions by: L.Broglia, G.Cosmo.
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| 41 | // ----------------------------------------------------------------------
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| 42 | #ifndef included_G4CurveRayIntersection
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| 43 | #define included_G4CurveRayIntersection
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| 44 |
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| 45 | #include "G4CurvePoint.hh"
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| 46 | #include "G4Ray.hh"
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| 47 |
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| 48 | class G4CurveRayIntersection : public G4CurvePoint
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| 49 | {
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| 50 |
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| 51 | public: // with description
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| 52 |
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| 53 | G4CurveRayIntersection();
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| 54 | // Default constructor. Sets only distance to infinity.
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| 55 | // Must be followed by Init!
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| 56 |
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| 57 | G4CurveRayIntersection(G4Curve& c0, const G4Ray& r0);
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| 58 | // Constructor taking a curve and a ray.
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| 59 |
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| 60 | ~G4CurveRayIntersection();
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| 61 | // Empty destructor.
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| 62 |
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| 63 | G4CurveRayIntersection(const G4CurveRayIntersection& cr);
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| 64 | G4CurveRayIntersection& operator=(const G4CurveRayIntersection& cr);
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| 65 | // Copy constructor and assignment operator.
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| 66 |
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| 67 | inline void Init(G4Curve& c0, const G4Ray& r0);
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| 68 | // Initialises a G4CurveRayIntersection. Called by the constructor above.
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| 69 |
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| 70 | inline const G4Ray& GetRay() const;
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| 71 | // Returns the ray of intersection.
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| 72 |
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| 73 | inline void Reset();
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| 74 | inline void ResetPPoint(G4double u0);
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| 75 | inline void Reset(const G4Point3D& p0);
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| 76 | inline void Reset(G4double u0, const G4Point3D& p0);
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| 77 | inline void ResetDistance(G4double d0);
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| 78 | inline void Reset(G4double u0, G4double d0);
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| 79 | inline void Reset(const G4Point3D& p0, G4double d0);
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| 80 | inline void Reset(G4double u0, const G4Point3D& p0, G4double d0);
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| 81 | // Resets point's attributes.
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| 82 |
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| 83 | inline G4double GetPPoint();
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| 84 | inline const G4Point3D& GetPoint();
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| 85 | // Returns point as parameter or as point in space.
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| 86 |
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| 87 | inline G4double GetDistance();
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| 88 | // Returns intersection's distance.
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| 89 |
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| 90 | public: // without description
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| 91 |
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| 92 | // additional functionalities
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| 93 |
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| 94 | inline void Update(G4CurveRayIntersection& is);
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| 95 | inline void UpdateWithPointOnCurve(G4CurveRayIntersection& is);
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| 96 |
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| 97 | protected:
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| 98 |
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| 99 | // data
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| 100 |
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| 101 | const G4Ray* r;
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| 102 | G4double d;
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| 103 | G4double kCarTolerance;
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| 104 | static const G4int dFlag;
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| 105 |
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| 106 | };
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| 107 |
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| 108 | #include "G4CurveRayIntersection.icc"
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| 109 |
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| 110 | #endif
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