PFunction.h

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// Author: I. Froehlich
// Written: 07.4.2008
// Revised:
 
#ifndef _PFUNCTION_H_
#define _PFUNCTION_H_
 
 
#include "TF1.h"
#include "TF2.h"
#include "TF3.h"
#include "PChannelModel.h"
 
#include "PBatch.h"
 
 
class PFunction : public PChannelModel  {
 
 public:
    PFunction();
    PFunction(const Char_t *id, const Char_t *de, Int_t key);
    PDistribution *Clone(const char *delme=NULL) const;
 
    Bool_t Init(void);
 
    using PDistribution::GetWeight;
    Double_t GetWeight(Double_t *mass, Int_t *didx=NULL);
 
    using TF1::SetFunction;
    void SetFunction(TF1 *my_tf1) {tf1 = my_tf1;};
    void SetFunction(TF2 *my_tf2) {tf2 = my_tf2;};
    void SetFunction(TF3 *my_tf3) {tf2 = my_tf3;};
    void SetFunction(Double_t c)  {constant = c;};
    Bool_t AddEquation(const char *command);
 
    using PDistribution::SampleMass;
    Bool_t SampleMass(Double_t *mass, Int_t *didx=NULL);
 
 private:
 
    TF1 *tf1;
    TF2 *tf2;
    TF3 *tf3;
    Double_t constant, *vf, *vx;
    PBatch  *batch;
 
    ClassDef(PFunction, 0)  //Function wrapper (e.g. for model pathes)
 
};
 
#endif