/data/refman/pasoursint/CMSSW_5_3_3/src/SimCalorimetry/CaloSimAlgos/src/CaloCachedShapeIntegrator.cc

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#include "SimCalorimetry/CaloSimAlgos/interface/CaloCachedShapeIntegrator.h"

const int NBINS = 281; // 256, plus 25 before 

CaloCachedShapeIntegrator::CaloCachedShapeIntegrator( const CaloVShape* aShape ) :
  v_(NBINS, 0.),
  timeToRise_(aShape->timeToRise())
{
  for(int t = 0; t < 256; ++t) 
  {
    double amount = (*aShape)(t);
    for(int istep = 0; istep < 25; ++istep) 
    {
      int ibin = t + istep;
      v_[ibin] += amount;
    }
  }
}

CaloCachedShapeIntegrator::~CaloCachedShapeIntegrator() 
{
}

double 
CaloCachedShapeIntegrator::timeToRise() const 
{
   return timeToRise_;
}

double 
CaloCachedShapeIntegrator::operator() ( double startTime ) const 
{
  // round up, and account for the -25 ns offset 
  int ibin = static_cast<int>(startTime+25.0);
  return (ibin<0 || ibin >= NBINS) ? 0. : v_[ibin];
}