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 // -------------------------------------------------------------------- 00031 // GEANT 4 class header file 00032 // -------------------------------------------------------------------- 00033 // 00034 // Class Description: 00035 // 00036 // G4ErrorTarget class: limits step when track reaches a cylindrical surface. 00037 00038 // History: 00039 // - Created. P. Arce, September 2004 00040 // -------------------------------------------------------------------- 00041 00042 #ifndef G4ErrorCylSurfaceTarget_hh 00043 #define G4ErrorCylSurfaceTarget_hh 00044 00045 #include "globals.hh" 00046 #include "G4ErrorSurfaceTarget.hh" 00047 #include "G4ThreeVector.hh" 00048 #include "G4RotationMatrix.hh" 00049 #include "G4AffineTransform.hh" 00050 #include "G4Plane3D.hh" 00051 00052 class G4ErrorCylSurfaceTarget : public G4ErrorSurfaceTarget 00053 { 00054 public: // with description 00055 00056 G4ErrorCylSurfaceTarget( const G4double& radius, 00057 const G4ThreeVector& trans=G4ThreeVector(), 00058 const G4RotationMatrix& rotm=G4RotationMatrix() ); 00059 // Constructs cylindrical surface by radius, translation and rotation 00060 00061 G4ErrorCylSurfaceTarget( const G4double& radius, 00062 const G4AffineTransform& trans ); 00063 // Constructs cylindrical surface by radius and affine transformation 00064 00065 ~G4ErrorCylSurfaceTarget(); 00066 00067 virtual G4ThreeVector IntersectLocal( const G4ThreeVector& point, 00068 const G4ThreeVector& direc ) const; 00069 // Intersects the cylindrical surface with the line in local (cylinder) 00070 // coordinates, given by point and direction 00071 00072 virtual G4double GetDistanceFromPoint( const G4ThreeVector& point, 00073 const G4ThreeVector& direc ) const; 00074 // Distance from a point to the cylindrical surface in a given direction 00075 00076 virtual G4double GetDistanceFromPoint( const G4ThreeVector& point ) const; 00077 // Minimal distance from a point to the cylindrical surface in any 00078 // direction 00079 00080 virtual G4Plane3D GetTangentPlane( const G4ThreeVector& point ) const; 00081 // Get plane tangent to cylindrical surface at a given point 00082 00083 virtual void Dump( const G4String& msg ) const; 00084 // Dump cylindrical surface parameter 00085 00086 private: 00087 00088 G4double fradius; 00089 G4AffineTransform ftransform; 00090 }; 00091 00092 #endif