[u/mrichter/AliRoot.git] / TEvtGen / EvtGenBase / EvtIntegPdf1D.hh

/*******************************************************************************
 * Project: BaBar detector at the SLAC PEP-II B-factory
 * Package: EvtGenBase
 *    File: $Id: EvtIntegPdf1D.hh,v 1.2 2009-03-16 16:42:03 robbep Exp $
 *  Author: Alexei Dvoretskii, dvoretsk@slac.stanford.edu, 2001-2002
 *
 * Copyright (C) 2002 Caltech
 *******************************************************************************/

// Analytically integrable one dimensional PDF.

#ifndef EVT_INTEG_PDF_1D_HH
#define EVT_INTEG_PDF_1D_HH

#include "EvtGenBase/EvtPdf.hh"
#include "EvtGenBase/EvtPoint1D.hh"

class EvtIntegPdf1D : public EvtPdf<EvtPoint1D> {

public:
  
  EvtIntegPdf1D(double min, double max);
  EvtIntegPdf1D(const EvtIntegPdf1D&);
  virtual ~EvtIntegPdf1D();

  // Pdf integral function and its inverse to be defined in subclasses  

  virtual double pdfIntegral(double x) const = 0;
  virtual double pdfIntegralInverse(double x) const = 0;

  virtual EvtValError compute_integral() const;
  virtual EvtPoint1D randomPoint();

protected: 
  
  double _min;
  double _max;
};


#endif
Commit	Line	Data
da0e9ce3	1	/*******************************************************************************
	2	* Project: BaBar detector at the SLAC PEP-II B-factory
	3	* Package: EvtGenBase
0ca57c2f	4	* File: $Id: EvtIntegPdf1D.hh,v 1.2 2009-03-16 16:42:03 robbep Exp $
da0e9ce3	5	* Author: Alexei Dvoretskii, dvoretsk@slac.stanford.edu, 2001-2002
	6	*
	7	* Copyright (C) 2002 Caltech
	8	*******************************************************************************/
	9
	10	// Analytically integrable one dimensional PDF.
	11
	12	#ifndef EVT_INTEG_PDF_1D_HH
	13	#define EVT_INTEG_PDF_1D_HH
	14
	15	#include "EvtGenBase/EvtPdf.hh"
	16	#include "EvtGenBase/EvtPoint1D.hh"
	17
	18	class EvtIntegPdf1D : public EvtPdf<EvtPoint1D> {
	19
	20	public:
	21
	22	EvtIntegPdf1D(double min, double max);
	23	EvtIntegPdf1D(const EvtIntegPdf1D&);
	24	virtual ~EvtIntegPdf1D();
	25
	26	// Pdf integral function and its inverse to be defined in subclasses
	27
	28	virtual double pdfIntegral(double x) const = 0;
	29	virtual double pdfIntegralInverse(double x) const = 0;
	30
	31	virtual EvtValError compute_integral() const;
	32	virtual EvtPoint1D randomPoint();
	33
	34	protected:
	35
	36	double _min;
	37	double _max;
	38	};
	39
	40
	41	#endif
	42
	43