/data/refman/pasoursint/CMSSW_5_2_9/src/SimGeneral/NoiseGenerators/interface/GaussianTailNoiseGenerator.h

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#ifndef GaussianTailNoiseGenerator_h
#define GaussianTailNoiseGenerator_h

#include <vector>
#include <map>

namespace CLHEP {
  class HepRandomEngine;
}

#include "CLHEP/Random/RandPoissonQ.h"
#include "CLHEP/Random/RandGaussQ.h"
#include "CLHEP/Random/RandFlat.h"


class GaussianTailNoiseGenerator {

public:

  GaussianTailNoiseGenerator( CLHEP::HepRandomEngine& eng);

  // Compiler-generated destructor, copy c'tor, and assignment are all
  // correct.

  void generate(int NumberOfchannels, 
                float threshold,
                float noiseRMS, 
                std::map<int,float>& theMap );

  void generate(int NumberOfchannels, 
                float threshold,
                float noiseRMS, 
                std::vector<std::pair<int,float> >&);
/*
  void generateRaw(int NumberOfchannels, 
                   float noiseRMS, 
                   std::vector<std::pair<int,float> >&);
*/
  void generateRaw(float noiseRMS,
                   std::vector<double>&);

protected:

  int* getRandomChannels(int, int);

  double generate_gaussian_tail(const double,const double);

private:

  CLHEP::RandGaussQ        gaussDistribution_;
  CLHEP::RandPoissonQ      poissonDistribution_;
  CLHEP::RandFlat          flatDistribution_;
  int channel512_[512];
  int channel768_[768];
};

#endif