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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28 | // GEANT4 tag $Name: geant4-09-03 $ |
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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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