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: G4IntersectingCone.hh 67011 2013-01-29 16:17:41Z gcosmo $ 00028 // 00029 // 00030 // -------------------------------------------------------------------- 00031 // GEANT 4 class header file 00032 // 00033 // 00034 // G4IntersectingCone 00035 // 00036 // Class description: 00037 // 00038 // Utility class which calculates the intersection 00039 // of an arbitrary line with a fixed cone 00040 00041 // Author: 00042 // David C. Williams (davidw@scipp.ucsc.edu) 00043 // -------------------------------------------------------------------- 00044 #ifndef G4IntersectingCone_hh 00045 #define G4IntersectingCone_hh 00046 00047 #include "G4Types.hh" 00048 #include "geomdefs.hh" 00049 #include "G4ThreeVector.hh" 00050 00051 class G4IntersectingCone 00052 { 00053 public: 00054 00055 G4IntersectingCone( const G4double r[2], const G4double z[2] ); 00056 virtual ~G4IntersectingCone(); 00057 00058 G4int LineHitsCone( const G4ThreeVector &p, const G4ThreeVector &v, 00059 G4double *s1, G4double *s2 ); 00060 00061 G4bool HitOn( const G4double r, const G4double z ); 00062 00063 inline G4double RLo() const { return rLo; } 00064 inline G4double RHi() const { return rHi; } 00065 inline G4double ZLo() const { return zLo; } 00066 inline G4double ZHi() const { return zHi; } 00067 00068 public: // without description 00069 00070 G4IntersectingCone(__void__&); 00071 // Fake default constructor for usage restricted to direct object 00072 // persistency for clients requiring preallocation of memory for 00073 // persistifiable objects. 00074 00075 00076 protected: 00077 00078 G4double zLo, zHi, // Z bounds of side 00079 rLo, rHi; // R bounds of side 00080 00081 G4bool type1; // True if cone is type 1 00082 // (std::fabs(z1-z2)>std::fabs(r1-r2)) 00083 G4double A, B; // Cone radius parameter: 00084 // type 1: r = A + B*z 00085 // type 2: z = A + B*r 00086 00087 G4int LineHitsCone1( const G4ThreeVector &p, const G4ThreeVector &v, 00088 G4double *s1, G4double *s2 ); 00089 G4int LineHitsCone2( const G4ThreeVector &p, const G4ThreeVector &v, 00090 G4double *s1, G4double *s2 ); 00091 }; 00092 00093 #endif
1.4.7