Public Member Functions | List of all members
Random Class Reference

Simple random number generator. More...

Public Member Functions

 Random (const label)
 Construct given seed. More...
 
int bit ()
 
scalar scalar01 ()
 Scalar [0..1] (so including 0,1) More...
 
vector vector01 ()
 Vector with every component scalar01. More...
 
sphericalTensor sphericalTensor01 ()
 sphericalTensor with every component scalar01 More...
 
symmTensor symmTensor01 ()
 symmTensor with every component scalar01 More...
 
tensor tensor01 ()
 Tensor with every component scalar01. More...
 
label integer (const label lower, const label upper)
 Label [lower..upper]. More...
 
vector position (const vector &, const vector &)
 
void randomise (scalar &)
 
void randomise (vector &)
 
void randomise (sphericalTensor &)
 
void randomise (symmTensor &)
 
void randomise (tensor &)
 
scalar GaussNormal ()
 Return a normal Gaussian randon number. More...
 

Detailed Description

Simple random number generator.

Source files

Definition at line 49 of file Random.H.

Constructor & Destructor Documentation

Random ( const label  seed)

Construct given seed.

Definition at line 39 of file Random.C.

References Foam::osRandomSeed().

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Member Function Documentation

int bit ( )

Definition at line 54 of file Random.C.

References Foam::osRandomInteger().

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Foam::scalar scalar01 ( )

Scalar [0..1] (so including 0,1)

Definition at line 67 of file Random.C.

References Foam::osRandomDouble().

Referenced by Random::GaussNormal(), conformalVoronoiMesh::maxSurfaceProtrusion(), Random::position(), Random::randomise(), triangle< Point, PointRef >::randomPoint(), tetrahedron< Point, PointRef >::randomPoint(), Random::sphericalTensor01(), Random::symmTensor01(), Random::tensor01(), turbGen::U(), and Random::vector01().

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Foam::vector vector01 ( )

Vector with every component scalar01.

Definition at line 73 of file Random.C.

References VectorSpace< Form, Cmpt, Ncmpts >::component(), VectorSpace< Vector< scalar >, scalar, 3 >::nComponents, and Random::scalar01().

Referenced by treeBoundBox::extend(), Random::randomise(), and turbGen::U().

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Foam::sphericalTensor sphericalTensor01 ( )

sphericalTensor with every component scalar01

Definition at line 85 of file Random.C.

References SphericalTensor< Cmpt >::ii(), and Random::scalar01().

Referenced by Random::randomise().

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Foam::symmTensor symmTensor01 ( )

symmTensor with every component scalar01

Definition at line 94 of file Random.C.

References VectorSpace< Form, Cmpt, Ncmpts >::component(), VectorSpace< SymmTensor< Cmpt >, Cmpt, 6 >::nComponents, and Random::scalar01().

Referenced by Random::randomise().

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Foam::tensor tensor01 ( )

Tensor with every component scalar01.

Definition at line 106 of file Random.C.

References VectorSpace< Form, Cmpt, Ncmpts >::component(), VectorSpace< Tensor< scalar >, scalar, Mrows *Ncols >::nComponents, and Random::scalar01().

Referenced by Random::randomise().

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Foam::label integer ( const label  lower,
const label  upper 
)

Label [lower..upper].

Definition at line 118 of file Random.C.

References Foam::osRandomInteger().

Referenced by randomRenumber::renumber().

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Foam::vector position ( const vector &  start,
const vector &  end 
)

Definition at line 124 of file Random.C.

References VectorSpace< Form, Cmpt, Ncmpts >::component(), VectorSpace< Vector< scalar >, scalar, 3 >::nComponents, and Random::scalar01().

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void randomise ( scalar &  s)

Definition at line 138 of file Random.C.

References Random::scalar01().

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void randomise ( vector &  v)

Definition at line 144 of file Random.C.

References Random::vector01().

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void randomise ( sphericalTensor &  st)

Definition at line 150 of file Random.C.

References Random::sphericalTensor01().

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void randomise ( symmTensor &  st)

Definition at line 156 of file Random.C.

References Random::symmTensor01().

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void randomise ( tensor &  t)

Definition at line 162 of file Random.C.

References Random::tensor01().

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Foam::scalar GaussNormal ( )

Return a normal Gaussian randon number.

with zero mean and unity variance N(0, 1)

Definition at line 168 of file Random.C.

References Foam::log(), Random::scalar01(), Foam::sqr(), and Foam::sqrt().

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