G4ThreeMat Class Reference

#include <G4ThreeMat.hh>

Public Member Functions
	G4ThreeMat ()
	G4ThreeMat (G4double a[3][3])
virtual	~G4ThreeMat ()
	G4ThreeMat (const G4ThreeMat &m)
G4ThreeMat &	operator= (const G4ThreeMat &m)
G4int	operator== (const G4ThreeMat &m) const
virtual const char *	NameOf () const
virtual void	PrintOn (std::ostream &os=G4cout) const
G4double	Determinant () const

Friends
std::ostream &	operator<< (std::ostream &os, const G4ThreeMat &m)

Detailed Description

Definition at line 45 of file G4ThreeMat.hh.

Constructor & Destructor Documentation

G4ThreeMat() [1/3]

G4ThreeMat::G4ThreeMat

(

)

Definition at line 38 of file G4ThreeMat.cc.

{  
  //  default (null) constructor 
  for ( G4int i = 0; i < 3 ; i++ )
  {
    row[i]    = G4Vector3D( 0., 0., 0. );
    column[i] = G4Vector3D( 0., 0., 0. );
    
    for ( G4int j = 0; j < 3 ; j++ ) 
      element[i][j] = 0.;
  }
}

G4ThreeMat() [2/3]

G4ThreeMat::G4ThreeMat

(

G4double

a[3][3]

)

Definition at line 52 of file G4ThreeMat.cc.

{
  //  constructor to make matrix from array
  for ( G4int i = 0; i < 3 ; i++ )
  {
    row[i]    = G4Vector3D( a[i][0], a[i][1], a[i][2] );
    column[i] = G4Vector3D( a[0][i], a[1][i], a[2][i] );
    
    for ( G4int j = 0; j < 3 ; j++ ) 
      element[i][j] = a[i][j];
  }
}

~G4ThreeMat()

G4ThreeMat::~G4ThreeMat ( )

virtual

Definition at line 66 of file G4ThreeMat.cc.

{
}

G4ThreeMat() [3/3]

G4ThreeMat::G4ThreeMat

(

const G4ThreeMat &

m

)

Definition at line 71 of file G4ThreeMat.cc.

{ 
  //  copy constructor
  for ( G4int i = 0; i < 3 ; i++ )
  {
    row[i]    = mat.row[i];
    column[i] = mat.column[i];
    
    for ( G4int j = 0; j < 3 ; j++ ) 
      element[i][j] = mat.element[i][j];
  }
}

Member Function Documentation

Determinant()

G4double G4ThreeMat::Determinant

(

)

const

Definition at line 151 of file G4ThreeMat.cc.

{ 
  //  Determinant of a three by three matrix
  return element[0][0] * ( element[1][1] * element[2][2]
                    -  element[2][1] * element[1][2] )
    - element[0][1] * ( element[1][0] * element[2][2]
            -  element[2][0] * element[1][2] )
    + element[0][2] * ( element[1][0] * element[2][1]
            -  element[2][0] * element[1][1] );
}

NameOf()

const char * G4ThreeMat::NameOf ( ) const

virtual

Definition at line 85 of file G4ThreeMat.cc.

{
  return "G4ThreeMat";
}

operator=()

G4ThreeMat & G4ThreeMat::operator=

(

const G4ThreeMat &

m

)

Definition at line 136 of file G4ThreeMat.cc.

{ 
  if (&mat == this) return *this;
  for ( G4int i = 0; i < 3 ; i++ )
  {
    row[i]    = mat.row[i];
    column[i] = mat.column[i];
 
    for ( G4int j = 0; j < 3 ; j++ ) 
      element[i][j] = mat.element[i][j];
  }
  return *this;
}

operator==()

G4int G4ThreeMat::operator==

(

const G4ThreeMat &

m

)

const

Definition at line 121 of file G4ThreeMat.cc.

{
  for ( G4int i = 0; i < 3 ; i++ ) 
  {
    for ( G4int j = 0; j < 3 ; j++ ) 
    {
      if ( element[i][j] != mat.element[i][j] )
    return 0;
    }
  }
 
  return 1;
}

PrintOn()

void G4ThreeMat::PrintOn ( std::ostream &  os = G4cout ) const

virtual

Definition at line 100 of file G4ThreeMat.cc.

{
  // printing function using C++ std::ostream class
  os << "[ " << element[0][0] << "\t" 
     << element[0][1] << "\t"
     << element[0][2] << "\n  "
     << element[1][0] << "\t"
     << element[1][1] << "\t"
     << element[1][2] << "\n  "
     << element[2][0] << "\t"
     << element[2][1] << "\t"
     << element[2][2] << " ]\n";
  /*
    for ( G4int i = 0; i < 3; i++ ) {
    os << "row   [" << i << "] " << row[i] << "\n"
    << "column[" << i << "] " << column[i] << "\n";
    }
    */
}

Friends And Related Function Documentation

operator<<

std::ostream & operator<< ( std::ostream &  os, const G4ThreeMat &  m  )

friend

Definition at line 91 of file G4ThreeMat.cc.

{
  // overwrite output operator << to Print out G4ThreeMat objects
  // using the PrintOn function defined below
  mat.PrintOn( os );
  return os;
}

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The documentation for this class was generated from the following files:

• G4ThreeMat.hh
• G4ThreeMat.cc