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//-*-c++-*-
//-*-Weight.h-*-
// Written by James Monk and Andrew Pilkington
/////////////////////////////////////////////////////////////////////////////
#ifndef WEIGHT_HH
#define WEIGHT_HH
#include <iostream>
#include <map>
#include <vector>
namespace Exhume {
class Weight {
public:
Weight() { NPoints = 1000; };
virtual ~Weight() {}
inline std::map<double, double> GetFuncMap() { return (FuncMap); };
inline double GetTotalIntegral() { return (TotalIntegral); };
inline std::map<double, double> GetLineShape() { return (LineShape); };
protected:
virtual double WeightFunc(const double &) = 0;
void AddPoint(const double &, const double &);
inline double GetFunc(const double &xx_) {
if (xx_ > Max_) {
return (WeightFunc(xx_));
}
std::map<double, double>::iterator high_, low_;
high_ = FuncMap.upper_bound(xx_);
low_ = high_;
low_--;
return (low_->second + (high_->second - low_->second) * (xx_ - low_->first) / (high_->first - low_->first));
};
inline double GetValue(const double &xx_) {
std::map<double, double>::iterator high_, low_;
high_ = LineShape.upper_bound(xx_);
if (high_ == LineShape.end())
high_--;
low_ = high_;
low_--;
return (low_->second + (high_->second - low_->second) * (xx_ - low_->first) / (high_->first - low_->first));
};
void WeightInit(const double &, const double &);
double Max_;
double TotalIntegral;
private:
unsigned int NPoints;
std::map<double, double> FuncMap;
std::map<double, double> LineShape;
};
} // namespace Exhume
#endif
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