JMARKOV::JSingularityGenerator Class Reference

Implementation of the JGenerator interface. More...

#include <JMarkovGenerator.hh>

Inheritance diagram for JMARKOV::JSingularityGenerator:

Public Member Functions
	JSingularityGenerator (double _R, JPosition3D _x0)
	Constructor. More...
JPosition3D	getPosition ()
	Return a randomly generated position. More...
double	getWeight (JPosition3D pos)
	return the weight (=probability density dP/dV) for the given position. More...

Protected Attributes
const double	R
const double	C
JPosition3D	x0

Detailed Description

Implementation of the JGenerator interface.

Generates positions according to a probability density proportional to 1/r^2 centered around some point.

Definition at line 237 of file JMarkovGenerator.hh.

Constructor & Destructor Documentation

JMARKOV::JSingularityGenerator::JSingularityGenerator ( double  _R, JPosition3D  _x0  )

inline

Constructor.

The argument is the maximal distance from _x0

Definition at line 243 of file JMarkovGenerator.hh.

: R(_R), C(1.0/(4*M_PI*R)), x0(_x0) {}

Member Function Documentation

JPosition3D JMARKOV::JSingularityGenerator::getPosition ( )

inlinevirtual

Return a randomly generated position.

Implements JMARKOV::JGenerator.

Definition at line 245 of file JMarkovGenerator.hh.

                              {
      double r = gRandom->Uniform(0,R) ;
      double x,y,z ;
      gRandom->Sphere(x,y,z,r) ;
      return JPosition3D(x,y,z)+x0 ;
    }

double JMARKOV::JSingularityGenerator::getWeight ( JPosition3D  pos )

inlinevirtual

return the weight (=probability density dP/dV) for the given position.

When the generator is properly normalized, the integral of this quantity over the whole space is 1.

Implements JMARKOV::JGenerator.

Definition at line 252 of file JMarkovGenerator.hh.

                                        {
      pos -= x0 ;
      if( pos.getLength()>R ) return 0.0 ;
      return C/pos.getLengthSquared() ;
    }

Member Data Documentation

const double JMARKOV::JSingularityGenerator::R

protected

Definition at line 260 of file JMarkovGenerator.hh.

const double JMARKOV::JSingularityGenerator::C

protected

Definition at line 261 of file JMarkovGenerator.hh.

JPosition3D JMARKOV::JSingularityGenerator::x0

protected

Definition at line 262 of file JMarkovGenerator.hh.

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

• JMarkovGenerator.hh