[831] | 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: G4ThreeMat.cc,v 1.8 2006/06/29 18:42:56 gunter Exp $ |
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[850] | 28 | // GEANT4 tag $Name: HEAD $ |
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[831] | 29 | // |
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| 30 | // ---------------------------------------------------------------------- |
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| 31 | // GEANT 4 class source file |
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| 32 | // |
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| 33 | // G4ThreeMat.cc |
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| 34 | // |
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| 35 | // ---------------------------------------------------------------------- |
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| 36 | |
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| 37 | #include "G4ThreeMat.hh" |
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| 38 | |
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| 39 | G4ThreeMat::G4ThreeMat() |
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| 40 | { |
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| 41 | // default (null) constructor |
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| 42 | for ( G4int i = 0; i < 3 ; i++ ) |
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| 43 | { |
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| 44 | row[i] = G4Vector3D( 0., 0., 0. ); |
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| 45 | column[i] = G4Vector3D( 0., 0., 0. ); |
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| 46 | |
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| 47 | for ( G4int j = 0; j < 3 ; j++ ) |
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| 48 | element[i][j] = 0.; |
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| 49 | } |
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| 50 | } |
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| 51 | |
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| 52 | |
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| 53 | G4ThreeMat::G4ThreeMat( G4double a[3][3] ) |
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| 54 | { |
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| 55 | // constructor to make matrix from array |
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| 56 | for ( G4int i = 0; i < 3 ; i++ ) |
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| 57 | { |
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| 58 | row[i] = G4Vector3D( a[i][0], a[i][1], a[i][2] ); |
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| 59 | column[i] = G4Vector3D( a[0][i], a[1][i], a[2][i] ); |
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| 60 | |
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| 61 | for ( G4int j = 0; j < 3 ; j++ ) |
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| 62 | element[i][j] = a[i][j]; |
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| 63 | } |
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| 64 | } |
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| 65 | |
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| 66 | |
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| 67 | G4ThreeMat::~G4ThreeMat() |
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| 68 | { |
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| 69 | } |
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| 70 | |
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| 71 | |
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| 72 | G4ThreeMat::G4ThreeMat( const G4ThreeMat& m ) |
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| 73 | { |
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| 74 | // copy constructor |
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| 75 | for ( G4int i = 0; i < 3 ; i++ ) |
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| 76 | { |
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| 77 | row[i] = m.row[i]; |
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| 78 | column[i] = m.column[i]; |
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| 79 | |
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| 80 | for ( G4int j = 0; j < 3 ; j++ ) |
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| 81 | element[i][j] = m.element[i][j]; |
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| 82 | } |
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| 83 | } |
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| 84 | |
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| 85 | |
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| 86 | const char* G4ThreeMat::NameOf() const |
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| 87 | { |
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| 88 | return "G4ThreeMat"; |
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| 89 | } |
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| 90 | |
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| 91 | |
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| 92 | std::ostream& operator<<( std::ostream& os, const G4ThreeMat& m ) |
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| 93 | { |
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| 94 | // overwrite output operator << to Print out G4ThreeMat objects |
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| 95 | // using the PrintOn function defined below |
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| 96 | m.PrintOn( os ); |
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| 97 | return os; |
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| 98 | } |
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| 99 | |
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| 100 | |
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| 101 | void G4ThreeMat::PrintOn( std::ostream& os ) const |
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| 102 | { |
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| 103 | // printing function using C++ std::ostream class |
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| 104 | os << "[ " << element[0][0] << "\t" |
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| 105 | << element[0][1] << "\t" |
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| 106 | << element[0][2] << "\n " |
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| 107 | << element[1][0] << "\t" |
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| 108 | << element[1][1] << "\t" |
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| 109 | << element[1][2] << "\n " |
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| 110 | << element[2][0] << "\t" |
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| 111 | << element[2][1] << "\t" |
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| 112 | << element[2][2] << " ]\n"; |
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| 113 | /* |
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| 114 | for ( G4int i = 0; i < 3; i++ ) { |
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| 115 | os << "row [" << i << "] " << row[i] << "\n" |
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| 116 | << "column[" << i << "] " << column[i] << "\n"; |
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| 117 | } |
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| 118 | */ |
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| 119 | } |
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| 120 | |
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| 121 | |
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| 122 | G4int G4ThreeMat::operator==( const G4ThreeMat& m ) const |
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| 123 | { |
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| 124 | for ( G4int i = 0; i < 3 ; i++ ) |
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| 125 | { |
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| 126 | for ( G4int j = 0; j < 3 ; j++ ) |
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| 127 | { |
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| 128 | if ( element[i][j] != m.element[i][j] ) |
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| 129 | return 0; |
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| 130 | } |
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| 131 | } |
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| 132 | |
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| 133 | return 1; |
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| 134 | } |
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| 135 | |
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| 136 | |
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| 137 | G4ThreeMat& G4ThreeMat::operator=( const G4ThreeMat& m ) |
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| 138 | { |
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| 139 | if (&m == this) return *this; |
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| 140 | for ( G4int i = 0; i < 3 ; i++ ) |
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| 141 | { |
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| 142 | row[i] = m.row[i]; |
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| 143 | column[i] = m.column[i]; |
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| 144 | |
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| 145 | for ( G4int j = 0; j < 3 ; j++ ) |
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| 146 | element[i][j] = m.element[i][j]; |
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| 147 | } |
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| 148 | return *this; |
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| 149 | } |
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| 150 | |
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| 151 | |
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| 152 | G4double G4ThreeMat::Determinant() const |
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| 153 | { |
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| 154 | // Determinant of a three by three matrix |
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| 155 | return element[0][0] * ( element[1][1] * element[2][2] |
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| 156 | - element[2][1] * element[1][2] ) |
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| 157 | - element[0][1] * ( element[1][0] * element[2][2] |
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| 158 | - element[2][0] * element[1][2] ) |
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| 159 | + element[0][2] * ( element[1][0] * element[2][1] |
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| 160 | - element[2][0] * element[1][1] ); |
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| 161 | } |
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