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 G4ThreeMat 00031 // 00032 // Class description: 00033 // 00034 // Defines the class G4ThreeMat for three by three matrices. 00035 00036 // Author: Alan Breakstone 00037 // Adaptation by: J.Sulkimo, P.Urban. 00038 // Revisions by: L.Broglia, G.Cosmo. 00039 // ---------------------------------------------------------------------- 00040 #ifndef __THREEMAT_H 00041 #define __THREEMAT_H 00042 00043 #include "G4Vector3D.hh" 00044 00045 class G4ThreeMat 00046 { 00047 00048 public: // with description 00049 00050 G4ThreeMat(); 00051 // Default constructor. 00052 00053 G4ThreeMat( G4double a[3][3] ); 00054 // Normal constructors with a 3 x 3 array argument. 00055 00056 virtual ~G4ThreeMat(); 00057 // Destructor. 00058 00059 G4ThreeMat( const G4ThreeMat& m ); 00060 G4ThreeMat& operator=( const G4ThreeMat& m ); 00061 // Copy constructor and assignment operator. 00062 00063 G4int operator==( const G4ThreeMat& m ) const; 00064 // Equality operator. 00065 00066 friend std::ostream& operator<<( std::ostream& os, const G4ThreeMat& m ); 00067 00068 virtual const char* NameOf() const; 00069 // Returns the class name. 00070 00071 virtual void PrintOn( std::ostream& os = G4cout ) const; 00072 // Printing functions (derived classes do not need to overwrite operator <<). 00073 00074 G4double Determinant() const; 00075 // Determinant of matrix. 00076 00077 private: 00078 00079 G4double element[3][3]; 00080 G4Vector3D row[3], column[3]; 00081 // The elements exist individually and are also aggregated into rows and 00082 // columns to use operations already written for the G4Vector3Dc class. 00083 }; 00084 00085 #endif