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

◆ JSingularityGenerator()

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.

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

Member Function Documentation

◆ getPosition()

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 ;
     }

◆ getWeight()

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() ;
     }