00001 // 00002 // ******************************************************************** 00003 // * License and Disclaimer * 00004 // * * 00005 // * The Geant4 software is copyright of the Copyright Holders of * 00006 // * the Geant4 Collaboration. It is provided under the terms and * 00007 // * conditions of the Geant4 Software License, included in the file * 00008 // * LICENSE and available at http://cern.ch/geant4/license . These * 00009 // * include a list of copyright holders. * 00010 // * * 00011 // * Neither the authors of this software system, nor their employing * 00012 // * institutes,nor the agencies providing financial support for this * 00013 // * work make any representation or warranty, express or implied, * 00014 // * regarding this software system or assume any liability for its * 00015 // * use. Please see the license in the file LICENSE and URL above * 00016 // * for the full disclaimer and the limitation of liability. * 00017 // * * 00018 // * This code implementation is the result of the scientific and * 00019 // * technical work of the GEANT4 collaboration. * 00020 // * By using, copying, modifying or distributing the software (or * 00021 // * any work based on the software) you agree to acknowledge its * 00022 // * use in resulting scientific publications, and indicate your * 00023 // * acceptance of all terms of the Geant4 Software license. * 00024 // ******************************************************************** 00025 // 00026 // 00027 // $Id$ 00028 // 00029 // ---------------------------------------------------------------------- 00030 // Class G4CompositeCurve 00031 // 00032 // Class description: 00033 // 00034 // Definition of a generic composition of curves. 00035 00036 // Authors: J.Sulkimo, P.Urban. 00037 // Revisions by: L.Broglia, G.Cosmo. 00038 // ---------------------------------------------------------------------- 00039 #ifndef __G4COMPOSITCURVE_H 00040 #define __G4COMPOSITCURVE_H 00041 00042 #include "G4Curve.hh" 00043 #include "G4CurveVector.hh" 00044 #include "G4CurveRayIntersection.hh" 00045 #include "G4Point3DVector.hh" 00046 00047 00048 class G4CompositeCurve : public G4Curve 00049 { 00050 00051 public: // with description 00052 00053 G4CompositeCurve(); 00054 virtual ~G4CompositeCurve(); 00055 // Default constructor & destructor 00056 00057 G4CompositeCurve(const G4Point3DVector& vertices); 00058 // Constructor creating closed polygons, given the vertices. 00059 // No call to Init and SetBounds is needed after calling this 00060 // constructor. 00061 00062 virtual G4String GetEntityType() const; 00063 // Returns entity type identifier. 00064 00065 virtual G4Curve* Project(const G4Transform3D& tr = G4Transform3D::Identity); 00066 // Project along trasformation tr. 00067 00068 virtual G4bool Tangent(G4CurvePoint& cp, G4Vector3D& v); 00069 // Tangent computed from the 3D point representation. 00070 00071 virtual G4double GetPMax() const; 00072 virtual G4Point3D GetPoint(G4double param) const; 00073 virtual G4double GetPPoint(const G4Point3D& p) const; 00074 const G4CurveVector& GetSegments() const; 00075 // Acccessors for the geometric data 00076 00077 void Init(const G4CurveVector& segments0); 00078 // Initialises geometric data. 00079 // The object is not responsible for deleting the curves; 00080 // only a shallow copy of the CurveVector is made. 00081 00082 public: // without description 00083 00084 // virtual void IntersectRay2D(const G4Ray& ray, G4CurveRayIntersection& is); 00085 virtual G4int IntersectRay2D(const G4Ray& ray); 00086 00087 protected: // with description 00088 00089 virtual void InitBounded(); 00090 // Compute bounding box. 00091 00092 private: 00093 00094 G4CompositeCurve(const G4CompositeCurve&); 00095 G4CompositeCurve& operator=(const G4CompositeCurve&); 00096 // Private copy-constructor and assignment operator. 00097 00098 private: 00099 00100 G4CurveVector segments; 00101 G4CurveRayIntersection lastIntersection; 00102 // geometric data 00103 00104 }; 00105 00106 #include "G4CompositeCurve.icc" 00107 00108 #endif