ClusterFP420.cc

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// File: ClusterFP420.cc
// Date: 12.2006
// Description: ClusterFP420 for FP420
// Modifications:
#include "DataFormats/FP420Cluster/interface/ClusterFP420.h"
#include "DataFormats/FP420Digi/interface/HDigiFP420.h"
#include <iostream>
#include <cmath>
using namespace std;

//#define mydigidebug10
//#define mydigidebug11

//static float const_ps1s2[3] =  {0.050,.0139,0.0045};// pitch, sigma_1channelCluster, sigma_2channelsCluster - Narrow , mm
//static float constW_ps1s2[3] = {0.400,.0920,0.0280};// pitch, sigma_1channelCluster, sigma_2channelsCluster - Wide , mm

static float const const_ps1s2[3] = {
    0.050, .0135, 0.0086};  // pitch, sigma_1channelCluster, sigma_2channelsCluster - Narrow , mm
static float const constW_ps1s2[3] = {
    0.400, .1149, 0.0648};  // pitch, sigma_1channelCluster, sigma_2channelsCluster - Wide , mm

// sense of xytype here is X or Y type planes. Now we are working with X only, i.e. xytype=2
ClusterFP420::ClusterFP420(unsigned int detid, unsigned int xytype, const HDigiFP420Range& range, float& cog, float& err)
    : detId_(detid),
      firstStrip_(range.first->strip())
//  detId_(detid), xytype_(xytype), firstStrip_(range.first->strip())
{
  // For the range of strips in cluster assign adc(,its numbers i->strip()) calculate cog...
  // strip   :
#ifdef mydigidebug11
  std::cout << "===================================== firstStrip = " << firstStrip_ << std::endl;
  std::cout << "==range.first->strip() = " << range.first->strip() << std::endl;
  std::cout << "==range.second->strip() = " << range.second->strip() << std::endl;
#endif

  amplitudes_.reserve(range.second - range.first);

  int striprange = 0;
  float sumx = 0.;
  float sumxx = 0.;
  float sumy = 0.;
  float sumyy = 0.;
  int suma = 0;

  //  int lastStrip = -1;
  for (HDigiFP420Iter i = range.first; i != range.second; i++) {
    striprange++;
#ifdef mydigidebug11
    std::cout << " current striprange = " << striprange << std::endl;
#endif
    /*
      if (i!=ibeg && (difNarr(xytype,i,i-1) > 1 || difWide(xytype,i,i-1) > 1)   ){
    if (lastStrip>0 && i->strip() != lastStrip + 1) {
                 for (int j=0; j < i->strip()-(lastStrip+1); j++) {
           amplitudes_.push_back( 0);
         }
    }
    lastStrip = i->strip();
*/
    short amp = i->adc();  // FIXME: gain correction here

#ifdef mydigidebug11
    std::cout << " current strip = " << i->strip() << "  amp = " << amp << std::endl;
#endif

    amplitudes_.push_back(amp);
    if (xytype == 1) {
      sumx += i->stripH() * amp;
      sumy += i->stripHW() * amp;
      suma += amp;
      sumxx += (i->stripH()) * (i->stripH()) * amp;
      sumyy += (i->stripHW()) * (i->stripHW()) * amp;
    } else if (xytype == 2) {
      sumx += i->stripV() * amp;
      sumy += i->stripVW() * amp;
      suma += amp;
      sumxx += (i->stripV()) * (i->stripV()) * amp;
      sumyy += (i->stripVW()) * (i->stripVW()) * amp;
    } else {
      std::cout << " ClusterFP420: wrong xytype = " << xytype << std::endl;
    }

#ifdef mydigidebug11
    std::cout << " current sumx = " << sumx << std::endl;
    std::cout << " current sumy = " << sumy << std::endl;
    std::cout << " current suma = " << suma << std::endl;
    std::cout << " current barycenter = " << (sumx / static_cast<float>(suma)) << std::endl;
    std::cout << " current barycenterW= " << (sumy / static_cast<float>(suma)) << std::endl;
#endif
  }  //for i

  if (suma != 0) {
    barycenter_ = sumx / static_cast<float>(suma);
    barycerror_ = sumxx / static_cast<float>(suma);
    barycerror_ = fabs(barycerror_ - barycenter_ * barycenter_);
#ifdef mydigidebug11
    std::cout << "barycerror_ = " << barycerror_ << "barycenter_ = " << barycenter_ << std::endl;
#endif
    barycenterW_ = sumy / static_cast<float>(suma);
    barycerrorW_ = sumyy / static_cast<float>(suma);
    barycerrorW_ = fabs(barycerrorW_ - barycenterW_ * barycenterW_);
#ifdef mydigidebug11
    std::cout << "barycerrorW_ = " << barycerrorW_ << "barycenterW_ = " << barycenterW_ << std::endl;
#endif
  } else {
    barycenter_ = 1000000.;
    barycerror_ = 1000000.;
    barycenterW_ = 1000000.;
    barycerrorW_ = 1000000.;
  }

  cog = barycenter_;  // cog for Narrow pixels only

#ifdef mydigidebug11
  std::cout << "AT end: barycenter_ = " << barycenter_ << std::endl;
  std::cout << "AT end:  striprange = " << striprange << std::endl;
#endif

  /*

  float sumx0 = 0.;
  float sumxx = 0.;
  lastStrip = -1;
  for (HDigiFP420Iter i=range.first; i!=range.second; i++) {
#ifdef mydigidebug11
   std::cout << " current striprange = " << striprange << std::endl;
#endif
    if (lastStrip>0 && i->strip() != lastStrip + 1) {
                 for (int j=0; j < i->strip()-(lastStrip+1); j++) {
           amplitudes_.push_back( 0);
         }
    }
    lastStrip = i->strip();

    short amp = i->adc();       // FIXME: gain correction here

#ifdef mydigidebug11
   std::cout << " current strip = " << i->strip() << "  amp = " << amp << std::endl;
#endif

    sumx0 += (i->strip()-cog)*amp;
    sumxx += (i->strip()-cog) * (i->strip()-cog) * amp;


#ifdef mydigidebug11
   std::cout << " 2 current sumx0 = " << sumx0 << std::endl;
   std::cout << " 2 current sumxx = " << sumxx << std::endl;
#endif
  } //for


  if(suma != 0) {
    sumx0 = sumx0 / static_cast<float>(suma) ;
    sumxx = sumxx / static_cast<float>(suma);
    
    //barycerror_ = fabs(sumxx - sumx0*sumx0) ;

    //barycerror_ = (sumxx - sumx0*sumx0) ;
    //barycerror_ *= barycerror_ ;

      barycerror_ = sumxx ;

  }
  else{
    barycerror_ = 1000000. ;
  }

*/

#ifdef mydigidebug10
  std::cout << "pitchcommon = " << const_ps1s2[0] << " sigma1= " << const_ps1s2[1] << " sigma2= " << const_ps1s2[2]
            << std::endl;
#endif

  //
  if (barycerror_ == 0.0) {
    barycerror_ = const_ps1s2[1] / const_ps1s2[0];  //
  } else {
    barycerror_ = const_ps1s2[2] / const_ps1s2[0];  //
  }
  barycerror_ *= barycerror_;
  //
  if (barycerrorW_ == 0.0) {
    barycerrorW_ = constW_ps1s2[1] / constW_ps1s2[0];  //
  } else {
    barycerrorW_ = constW_ps1s2[2] / constW_ps1s2[0];  //
  }
  barycerrorW_ *= barycerrorW_;
  //

#ifdef mydigidebug11
  std::cout << "barycerror_ = " << barycerror_ << "barycerrorW_ = " << barycerrorW_ << std::endl;
#endif

  // change by hands:

  // number of station
  int mysn0 = 2;

  // number of planes
  int mypn0 = 5;  // number of superplanes

  // number of station
  int myrn0 = 6;  //  6 possible sensors in superlayer

  // comment:              detID = theFP420NumberingScheme->FP420NumberingScheme::packMYIndex(rn0, pn0, sn0, det, zside, sector, zmodule);
  // unpack from detId_:

  int sScale = myrn0 * mypn0, dScale = myrn0 * mypn0 * mysn0;

  int det = (detId_ - 1) / dScale + 1;
  int sector = (detId_ - 1 - dScale * (det - 1)) / sScale + 1;

#ifdef mydigidebug11
  std::cout << "sector = " << sector << " det= " << det << std::endl;
#endif

  // unpack from detId_ (OLD):
  //    int  sScale = 2*mypn0;
  //int  sector = (detId_-1)/sScale + 1 ;

  float a = 0.00001;

  if (mysn0 == 2) {
    if (sector == 2) {
      a = 0.0026 + ((0.0075 - 0.0026) / 7.) * (mypn0 - 2);  // at 8 m in mm
    }
  }
  else if (mysn0 == 3) {
    if (sector == 2) {
      a = 0.0011 + ((0.0030 - 0.0011) / 7.) * (mypn0 - 2);  // at 4 m  in mm
    } else if (sector == 3) {
      a = 0.0022 + ((0.0068 - 0.0022) / 7.) * (mypn0 - 2);  // at 8 m  in mm
    }
  } else if (mysn0 == 4) {
    if (sector == 2) {
      a = 0.0009 + ((0.0024 - 0.0009) / 7.) * (mypn0 - 2);  // at 2.7 m  in mm
    } else if (sector == 3) {
      a = 0.0018 + ((0.0050 - 0.0018) / 7.) * (mypn0 - 2);  // at 5.4 m  in mm
    } else if (sector == 4) {
      a = 0.0026 + ((0.0075 - 0.0026) / 7.) * (mypn0 - 2);  // at 8.1 m  in mm
    }
  }

  //    barycerror_+=a*a;
  //    barycerrorW_+=a*a;
  barycerror_ += a * a / const_ps1s2[0] / const_ps1s2[0];
  barycerrorW_ += a * a / constW_ps1s2[0] / constW_ps1s2[0];

  /*

  if(detId_ < 21) {
    float a = 0.0001*(int((detId_-1)/2.)+1)/pitchall;
    barycerror_+=a*a;
  }
  else if(detId_ < 41) {
    float a = 0.0001*(int((detId_-21)/2.)+1)/pitchall;
           a +=0.0036; // 2.5 m
    //          a +=0.0052; // 4 m
    //  a +=0.0131;// 8. m
    barycerror_+=a*a;
  }
  else if(detId_ < 61) {
    float a = 0.0001*(int((detId_-41)/2.)+1)/pitchall;
             a +=0.0069;// 5 m  0.0059
    //          a +=0.0101;// 8. m
    //  a +=0.0241;// 16. m
    barycerror_+=a*a;
  }
  else if(detId_ < 81) {
    float a = 0.0001*(int((detId_-61)/2.)+1)/pitchall;
          a +=0.0131;// 7.5 m   0.0111
    //       a +=0.0151;// 12. m
    //  a +=0.0301;// 24. m
    barycerror_+=a*a;
  }
*/
#ifdef mydigidebug11
  std::cout << "AT end: barycerror_ = " << barycerror_ << std::endl;
#endif

  barycerror_ = sqrt(barycerror_);
  err = barycerror_;

  barycerrorW_ = sqrt(barycerrorW_);

#ifdef mydigidebug11
  std::cout << "AT end: err = " << err << "   detId_= " << detId_ << std::endl;
#endif
}