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File indexing completed on 2024-09-07 04:37:39

 // This is  CSCHitFromStripOnly.cc
 
 #include "RecoLocalMuon/CSCRecHitD/src/CSCHitFromStripOnly.h"
 #include "RecoLocalMuon/CSCRecHitD/src/CSCStripData.h"
 #include "RecoLocalMuon/CSCRecHitD/src/CSCStripHitData.h"
 #include "RecoLocalMuon/CSCRecHitD/src/CSCStripHit.h"
 #include "RecoLocalMuon/CSCRecHitD/src/CSCPedestalChoice.h"
 
 #include "DataFormats/MuonDetId/interface/CSCDetId.h"
 
 #include "Geometry/CSCGeometry/interface/CSCLayer.h"
 #include "Geometry/CSCGeometry/interface/CSCChamberSpecs.h"
 
 #include "FWCore/MessageLogger/interface/MessageLogger.h"
 #include "FWCore/Utilities/interface/Exception.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 //#include <iostream>
 
 CSCHitFromStripOnly::CSCHitFromStripOnly(const edm::ParameterSet& ps)
     : recoConditions_(nullptr), calcped_(nullptr), ganged_(false) {
   useCalib = ps.getParameter<bool>("CSCUseCalibrations");
   bool useStaticPedestals = ps.getParameter<bool>("CSCUseStaticPedestals");
   int noOfTimeBinsForDynamicPed = ps.getParameter<int>("CSCNoOfTimeBinsForDynamicPedestal");
 
   theThresholdForAPeak = ps.getParameter<double>("CSCStripPeakThreshold");
   theThresholdForCluster = ps.getParameter<double>("CSCStripClusterChargeCut");
 
   LogTrace("CSCRecHit") << "[CSCHitFromStripOnly] CSCUseStaticPedestals = " << useStaticPedestals;
   if (!useStaticPedestals)
     LogTrace("CSCRecHit") << "[CSCHitFromStripOnly] CSCNoOfTimeBinsForDynamicPedestal = " << noOfTimeBinsForDynamicPed;
 
   if (useStaticPedestals) {
     calcped_ = new CSCStaticPedestal();
   } else {
     if (noOfTimeBinsForDynamicPed == 1) {
       calcped_ = new CSCDynamicPedestal1();
     } else {
       calcped_ = new CSCDynamicPedestal2();  // NORMAL DEFAULT!
     }
   }
 }
 
 CSCHitFromStripOnly::~CSCHitFromStripOnly() { delete calcped_; }
 
 /* runStrip
  *
  * Search for strip with ADC output exceeding theThresholdForAPeak.  For each of these strips,
  * build a cluster of strip of size theClusterSize (typically 3 strips).  Finally, make
  * a Strip Hit out of these clusters by finding the center-of-mass position of the hit
  */
 std::vector<CSCStripHit> CSCHitFromStripOnly::runStrip(const CSCDetId& id,
                                                        const CSCLayer* layer,
                                                        const CSCStripDigiCollection::Range& rstripd) {
   std::vector<CSCStripHit> hitsInLayer;
 
   // cache layer info for ease of access
   id_ = id;
   layer_ = layer;
   nstrips_ = layer->chamber()->specs()->nStrips();
 
   setGanged(false);
   if (id_.ring() == 4 && layer_->chamber()->specs()->gangedStrips())
     setGanged(true);  //@@ ONLY ME1/1A CAN BE GANGED
 
   LogTrace("CSCHitFromStripOnly") << "[CSCHitFromStripOnly::runStrip] id= " << id_ << " nstrips= " << nstrips_
                                   << " ganged strips? " << ganged();
 
   tmax_cluster = 5;
 
   // Get gain correction weights for all strips in layer, and cache in gainWeight.
   // They're used in fillPulseHeights below.
   // When ME11a is ganged we only need the first 16 values of the 48 filled,
   // but 17-48 are just duplicates of 1-16 anyway
 
   if (useCalib) {
     recoConditions_->stripWeights(id, nstrips_, gainWeight);
 
     // *** START DUMP gainWeight
     //    std::cout << "gainWeight for id= " << id_ << " nstrips= " << nstrips_ << std::endl;
     //    for ( size_t i = 0; i!=10; ++i ) {
     //      for ( size_t j = 0; j!=8; ++j ) {
     //        std::cout << gainWeight[i*8 + j] << "   ";
     //      }
     //      std::cout << std::endl;
     //    }
     // *** END DUMP gainWeight
   }
 
   // Store pulseheights from SCA and find maxima (potential hits)
   fillPulseHeights(rstripd);
   findMaxima(id);
 
   // Make a Strip Hit out of each strip local maximum
   for (size_t imax = 0; imax != theMaxima.size(); ++imax) {
     // Initialize parameters entering the CSCStripHit
     clusterSize = theClusterSize;
     theStrips.clear();
     strips_adc.clear();
     strips_adcRaw.clear();
 
     // makeCluster calls findHitOnStripPosition to determine the centroid position
 
     // Remember, the array starts at 0, but the stripId starts at 1...
     float strippos = makeCluster(theMaxima[imax] + 1);
 
     //if ( strippos < 0 || tmax_cluster < 3 ){
     // the strippos (as calculated here) is not used later on in
     /// fact (20.10.09);
     // with the negative charges allowed it can become negative
     if (tmax_cluster < 3) {
       theClosestMaximum.push_back(99);  // to keep proper vector size
       continue;
     }
     //---- If two maxima are too close the error assigned will be width/sqrt(12) - see CSCXonStrip_MatchGatti.cc
     int maximum_to_left = 99;  //---- If there is one maximum - the distance is set to 99 (strips)
     int maximum_to_right = 99;
     if (imax < theMaxima.size() - 1) {
       maximum_to_right = theMaxima.at(imax + 1) - theMaxima.at(imax);
     }
     if (imax > 0) {
       maximum_to_left = theMaxima.at(imax - 1) - theMaxima.at(imax);
     }
     if (std::abs(maximum_to_right) < std::abs(maximum_to_left)) {
       theClosestMaximum.push_back(maximum_to_right);
     } else {
       theClosestMaximum.push_back(maximum_to_left);
     }
 
     //---- Check if a neighbouring strip is a dead strip
     //bool deadStrip = isNearDeadStrip(id, theMaxima.at(imax));
     bool deadStripL = isDeadStrip(id, theMaxima.at(imax) - 1, nstrips_);
     bool deadStripR = isDeadStrip(id, theMaxima.at(imax) + 1, nstrips_);
     short int aDeadStrip = 0;
     if (!deadStripL && !deadStripR) {
       aDeadStrip = 0;
     } else if (deadStripL && deadStripR) {
       aDeadStrip = 255;
     } else {
       if (deadStripL) {
         aDeadStrip = theMaxima.at(imax) - 1;
       } else {
         aDeadStrip = theMaxima.at(imax) + 1;
       }
     }
 
     /// L1A (Begin looping)
     /// Attempt to redefine theStrips, to encode L1A phase bits
     std::vector<int> theL1AStrips;
     for (int ila = 0; ila < (int)theStrips.size(); ila++) {
       bool stripMatchCounter = false;
       for (auto itl1 = rstripd.first; itl1 != rstripd.second; ++itl1) {
         int stripNproto = (*itl1).getStrip();
         if (!ganged()) {
           if (theStrips[ila] == stripNproto) {
             stripMatchCounter = true;
             auto sz = (*itl1).getOverlappedSample().size();
             int L1AbitOnPlace = 0;
             for (auto iBit = 0UL; iBit < sz; iBit++) {
               L1AbitOnPlace |= ((*itl1).getL1APhase(iBit) << (15 - iBit));
             }
             theL1AStrips.push_back(theStrips[ila] | L1AbitOnPlace);
           }
         } else {
           for (int tripl = 0; tripl < 3; ++tripl) {
             if (theStrips[ila] == (stripNproto + tripl * 16)) {
               stripMatchCounter = true;
               auto sz = (*itl1).getOverlappedSample().size();
               int L1AbitOnPlace = 0;
               for (auto iBit = 0UL; iBit < sz; iBit++) {
                 L1AbitOnPlace |= ((*itl1).getL1APhase(iBit) << (15 - iBit));
               }
               theL1AStrips.push_back(theStrips[ila] | L1AbitOnPlace);
             }
           }
         }
       }
       if (!stripMatchCounter) {
         theL1AStrips.push_back(theStrips[ila]);
       }
     }
     /// L1A (end Looping)
 
     CSCStripHit striphit(id,
                          strippos,
                          tmax_cluster,
                          theL1AStrips,
                          strips_adc,
                          strips_adcRaw,  /// L1A
                          theConsecutiveStrips.at(imax),
                          theClosestMaximum.at(imax),
                          aDeadStrip);
     hitsInLayer.push_back(striphit);
   }
 
   /// Print statement to check StripHit content w/ LA1
   /*   
       for(std::vector<CSCStripHit>::const_iterator itSHit=hitsInLayer.begin(); itSHit!=hitsInLayer.end(); ++itSHit){
          (*itSHit).print(); 
          }  
   */
 
   return hitsInLayer;
 }
 
 /* makeCluster
  *
  */
 float CSCHitFromStripOnly::makeCluster(int centerStrip) {
   float strippos = -1.;
   clusterSize = theClusterSize;
   std::vector<CSCStripHitData> stripDataV;
 
   // We only want to use strip position in terms of strip # for the strip hit. //@@ What other choice is there?
 
   // If the cluster size is such that you go beyond the edge of detector, shrink cluster appropriately
   for (int i = 1; i < theClusterSize / 2 + 1; ++i) {
     if (centerStrip - i < 1 || centerStrip + i > int(nstrips_)) {
       // Shrink cluster size, but keep it an odd number of strips.
       clusterSize = 2 * i - 1;
     }
   }
   for (int i = -clusterSize / 2; i <= clusterSize / 2; ++i) {
     CSCStripHitData data = makeStripData(centerStrip, i);
     stripDataV.push_back(data);
     theStrips.push_back(centerStrip + i);
   }
   strippos = findHitOnStripPosition(stripDataV, centerStrip);
 
   LogTrace("CSCHitFromStripOnly") << "[CSCHitFromStripOnly::makeCluster] centerStrip= " << centerStrip
                                   << " strippos=" << strippos;
 
   return strippos;
 }
 
 /** makeStripData
  *
  */
 CSCStripHitData CSCHitFromStripOnly::makeStripData(int centerStrip, int offset) {
   CSCStripHitData prelimData;
   int thisStrip = centerStrip + offset;
 
   int tmax = thePulseHeightMap[centerStrip - 1].tmax();
   tmax_cluster = tmax;
 
   std::vector<float> adc(4);
   std::vector<float> adcRaw(4);
 
   // Fill adc & adcRaw
 
   int istart = tmax - 1;
   int istop = std::min(tmax + 2, 7);  // there are only time bins 0-7
   adc[3] = 0.1;                       // in case it isn't filled
 
   if (tmax > 2 && tmax < 7) {  // for time bins 3-6
     int ibin = thisStrip - 1;
     if (thePulseHeightMap[ibin].valid()) {
       std::copy(
           thePulseHeightMap[ibin].ph().begin() + istart, thePulseHeightMap[ibin].ph().begin() + istop + 1, adc.begin());
 
       std::copy(thePulseHeightMap[ibin].phRaw().begin() + istart,
                 thePulseHeightMap[ibin].phRaw().begin() + istop + 1,
                 adcRaw.begin());
     }
   } else {
     adc[0] = 0.1;
     adc[1] = 0.1;
     adc[2] = 0.1;
     adc[3] = 0.1;
     adcRaw = adc;
     LogTrace("CSCRecHit") << "[CSCHitFromStripOnly::makeStripData] Tmax out of range: contact CSC expert!";
   }
 
   if (offset == 0) {
     prelimData = CSCStripHitData(thisStrip, tmax_cluster, adcRaw, adc);
   } else {
     int sign = offset > 0 ? 1 : -1;
     // If there's another maximum that would like to use part of this cluster,
     // it gets shared in proportion to the height of the maxima
     for (int i = 1; i <= clusterSize / 2; ++i) {
       // Find the direction of the offset
       int testStrip = thisStrip + sign * i;
       std::vector<int>::iterator otherMax = find(theMaxima.begin(), theMaxima.end(), testStrip - 1);
 
       // No other maxima found, so just store
       if (otherMax == theMaxima.end()) {
         prelimData = CSCStripHitData(thisStrip, tmax_cluster, adcRaw, adc);
       } else {
         // Another maximum found - share
         std::vector<float> adc1(4);
         std::vector<float> adcRaw1(4);
         std::vector<float> adc2(4);
         std::vector<float> adcRaw2(4);
         // In case we only copy (below) into 3 of the 4 bins i.e. when istart=5, istop=7
         adc1[3] = 0.1;
         adc2[3] = 0.1;
         adcRaw1[3] = 0.1;
         adcRaw2[3] = 0.1;
 
         // Fill adcN with content of time bins tmax-1 to tmax+2 (if it exists!)
         if (tmax > 2 && tmax < 7) {  // for time bin tmax from 3-6
           int ibin = testStrip - 1;
           int jbin = centerStrip - 1;
           if (thePulseHeightMap[ibin].valid()) {
             std::copy(thePulseHeightMap[ibin].ph().begin() + istart,
                       thePulseHeightMap[ibin].ph().begin() + istop + 1,
                       adc1.begin());
             std::copy(thePulseHeightMap[ibin].phRaw().begin() + istart,
                       thePulseHeightMap[ibin].phRaw().begin() + istop + 1,
                       adcRaw1.begin());
           }
 
           if (thePulseHeightMap[jbin].valid()) {
             std::copy(thePulseHeightMap[jbin].ph().begin() + istart,
                       thePulseHeightMap[jbin].ph().begin() + istop + 1,
                       adc2.begin());
 
             std::copy(thePulseHeightMap[jbin].phRaw().begin() + istart,
                       thePulseHeightMap[jbin].phRaw().begin() + istop + 1,
                       adcRaw2.begin());
           }
         } else {
           adc1.assign(4, 0.1);
           adcRaw1 = adc1;
           adc2.assign(4, 0.1);
           adcRaw2 = adc2;
         }
 
         // Scale shared strip B ('adc') by ratio of peak of ADC counts from central strip A ('adc2')
         // to sum of A and neighbouring maxima C ('adc1')
 
         for (size_t k = 0; k < 4; ++k) {
           if (adc1[k] > 0 && adc2[k] > 0)
             adc[k] = adc[k] * adc2[k] / (adc1[k] + adc2[k]);
           if (adcRaw1[k] > 0 && adcRaw2[k] > 0)
             adcRaw[k] = adcRaw[k] * adcRaw2[k] / (adcRaw1[k] + adcRaw2[k]);
         }
         prelimData = CSCStripHitData(thisStrip, tmax_cluster, adcRaw, adc);
       }
     }
   }
   return prelimData;
 }
 
 /* fillPulseHeights
  *
  */
 void CSCHitFromStripOnly::fillPulseHeights(const CSCStripDigiCollection::Range& rstripd) {
   // Loop over strip digis in one CSCLayer and fill PulseHeightMap with pedestal-subtracted
   // SCA pulse heights.
 
   for (auto& ph : thePulseHeightMap)
     ph.reset();
 
   // for storing sca pulseheights once they may no longer be integer (e.g. after ped subtraction)
   for (CSCStripDigiCollection::const_iterator it = rstripd.first; it != rstripd.second; ++it) {
     int thisChannel = (*it).getStrip();
     auto& stripData = thePulseHeightMap[thisChannel - 1];
     auto& scaRaw = stripData.phRaw_;
     auto& sca = stripData.ph_;
 
     auto const& scaOri = (*it).getADCCounts();
     assert(scaOri.size() == 8);
     // Fill sca from scaRaw, implicitly converting to float
     std::copy(scaOri.begin(), scaOri.end(), scaRaw.begin());
     std::copy(scaRaw.begin(), scaRaw.end(), sca.begin());
 
     //@@ Find bin with largest pulseheight (_before_ ped subtraction - shouldn't matter, right?)
     int tmax = std::max_element(sca.begin(), sca.end()) - sca.begin();  // counts from 0
 
     // get pedestal - calculated as appropriate - for this sca pulse
     float ped = calcped_->pedestal(sca, recoConditions_, id_, thisChannel);
 
     // subtract the pedestal (from BOTH sets of sca pulseheights)
     std::for_each(sca.begin(), sca.end(), CSCSubtractPedestal(ped));
     std::for_each(scaRaw.begin(), scaRaw.end(), CSCSubtractPedestal(ped));
 
     //@@ Max in first 3 or last time bins is unacceptable, if so set to zero (why?)
     float phmax = 0.f;
     if (tmax > 2 && tmax < 7) {
       phmax = sca[tmax];
     }
     stripData.phmax_ = phmax;
     stripData.tmax_ = tmax;
 
     // Fill the map, possibly apply gains from cond data, and unfold ME1A channels
     // (To apply gains use CSCStripData::op*= which scales only the non-raw sca ph's;
     // but note that both sca & scaRaw are pedestal-subtracted.)
 
     // From StripDigi, thisChannel labels strip channel. Values phmax, tmax, scaRaw, sca belong to thisChannel
     if (useCalib)
       stripData *= gainWeight[thisChannel - 1];
 
     // for ganged ME1a need to duplicate values on istrip=thisChannel to iStrip+16 and iStrip+32
     if (ganged()) {
       for (int j = 1; j < 3; ++j) {
         thePulseHeightMap[thisChannel - 1 + 16 * j] = stripData;
       }
     }
   }
 }
 
 /* findMaxima
  *
  * fills vector 'theMaxima' with the local maxima in the pulseheight distribution
  * of the strips. The threshold defining a maximum is a configurable parameter.
  * A typical value is 30.
  */
 void CSCHitFromStripOnly::findMaxima(const CSCDetId& id) {
   theMaxima.clear();
   theConsecutiveStrips.clear();
   theClosestMaximum.clear();
   for (size_t i = 0; i != thePulseHeightMap.size(); ++i) {
     // sum 3 strips so that hits between strips are not suppressed
     float heightCluster = 0.;
 
     bool maximumFound = false;
     // Left edge of chamber
     if (!isDeadStrip(id, i + 1, nstrips_)) {  // Is it i or i+1
       if (i == 0) {
         heightCluster = thePulseHeightMap[i].phmax() + thePulseHeightMap[i + 1].phmax();
         // Have found a strip Hit if...
         if (thePulseHeightMap[i].phmax() >= thePulseHeightMap[i + 1].phmax() && isPeakOK(i, heightCluster)) {
           maximumFound = true;
         }
         // Right edge of chamber
       } else if (i == thePulseHeightMap.size() - 1) {
         heightCluster = thePulseHeightMap[i - 1].phmax() + thePulseHeightMap[i].phmax();
         // Have found a strip Hit if...
         if (thePulseHeightMap[i].phmax() > thePulseHeightMap[i - 1].phmax() && isPeakOK(i, heightCluster)) {
           maximumFound = true;
         }
         // Any other strips
       } else {
         heightCluster =
             thePulseHeightMap[i - 1].phmax() + thePulseHeightMap[i].phmax() + thePulseHeightMap[i + 1].phmax();
         // Have found a strip Hit if...
         if (thePulseHeightMap[i].phmax() > thePulseHeightMap[i - 1].phmax() &&
             thePulseHeightMap[i].phmax() >= thePulseHeightMap[i + 1].phmax() && isPeakOK(i, heightCluster)) {
           maximumFound = true;
         }
       }
     }
     //---- Consecutive strips with charge (real cluster); if too wide - measurement is not accurate
     if (maximumFound) {
       int numberOfConsecutiveStrips = 1;
       float testThreshold = 10.;  //---- ADC counts;
                                   //---- this is not XTalk corrected so it is correct in first approximation only
       int j = 0;
       for (int l = 0; l < 8; ++l) {
         if (j < 0)
           edm::LogWarning("FailedStripCountingWrongConsecutiveStripNumber")
               << "This should never occur!!! Contact CSC expert!";
         ++j;
         bool signalPresent = false;
         for (int k = 0; k < 2; ++k) {
           j *= -1;  //---- check from left and right
           int anotherConsecutiveStrip = i + j;
           if (anotherConsecutiveStrip >= 0 && anotherConsecutiveStrip < int(thePulseHeightMap.size())) {
             if (thePulseHeightMap[anotherConsecutiveStrip].phmax() > testThreshold) {
               ++numberOfConsecutiveStrips;
               signalPresent = true;
             }
           }
         }
         if (!signalPresent) {
           break;
         }
       }
 
       bool additional_maxima_found = false;
       // search for additional maxima if:
       // - hit is closer than 3 strips from the edge
       // - enough consecutive strips with signal
       // - strip charge distribution looks abnormal
 
       if (i > 2 && i + 3 < thePulseHeightMap.size() && numberOfConsecutiveStrips > 3) {
         //try to look for additional maxima at the left side from the main maxima
 
         if (((thePulseHeightMap[i + 1].phmax() >= thePulseHeightMap[i - 1].phmax() &&
               thePulseHeightMap[i + 1].phmax() >= thePulseHeightMap[i - 2].phmax() &&
               thePulseHeightMap[i + 2].phmax() <= thePulseHeightMap[i - 2].phmax()) ||
              (thePulseHeightMap[i + 1].phmax() <= thePulseHeightMap[i - 1].phmax() &&
               thePulseHeightMap[i + 1].phmax() <= thePulseHeightMap[i - 2].phmax())) &&
             //to avoid close maxima delimitation (this is already present in the code)
             thePulseHeightMap[i - 1].phmax() >= thePulseHeightMap[i - 2].phmax() &&
             //no need in a small charge maxima (might need adjustment)
             thePulseHeightMap[i - 2].phmax() > 20) {
           additional_maxima_found = true;
           theMaxima.push_back(i - 2);  //insert left maxima first
           //insert the same number of cosecutive strips, because they belong to both maximas
           theConsecutiveStrips.push_back(numberOfConsecutiveStrips);
           theMaxima.push_back(i);  //insert main maxima
           //insert the same number of cosecutive strips, because they belong to both maximas
           theConsecutiveStrips.push_back(numberOfConsecutiveStrips);
 
         }  //looking for additional maxima on the left
 
         //try to look for additional maxima at the right side from the main maxima
         if (((thePulseHeightMap[i + 1].phmax() >= thePulseHeightMap[i - 1].phmax() &&
               thePulseHeightMap[i + 2].phmax() >= thePulseHeightMap[i - 1].phmax()) ||
              (thePulseHeightMap[i + 1].phmax() <= thePulseHeightMap[i - 1].phmax() &&
               thePulseHeightMap[i + 2].phmax() <= thePulseHeightMap[i - 1].phmax() &&
               thePulseHeightMap[i + 2].phmax() >= thePulseHeightMap[i - 2].phmax())) &&
             //to avoid close maxima delimitation (this is already present in the code)
             thePulseHeightMap[i + 1].phmax() >= thePulseHeightMap[i + 2].phmax() &&
             //no need in a small charge maxima (might need adjustment)
             thePulseHeightMap[i + 2].phmax() > 20) {
           additional_maxima_found = true;
           theMaxima.push_back(i);  //insert main maxima first
           //insert the same number of cosecutive strips, because they belong to both maximas
           theConsecutiveStrips.push_back(numberOfConsecutiveStrips);
           theMaxima.push_back(i + 2);  //insert right maxima
           //insert the same number of cosecutive strips, because they belong to both maximas
           theConsecutiveStrips.push_back(numberOfConsecutiveStrips);
 
         }  //looking for additional maxima on the right
 
         //if nothing additional found fill the maxima
         if (!additional_maxima_found) {
           theMaxima.push_back(i);
           theConsecutiveStrips.push_back(numberOfConsecutiveStrips);
         }
       } else {  //not the case for looking for the additional maxima
         theMaxima.push_back(i);
         theConsecutiveStrips.push_back(numberOfConsecutiveStrips);
       }
     }  //if maximafound
   }  //all pulses
 }  //find maxima procedure
 
 bool CSCHitFromStripOnly::isPeakOK(int iStrip, float heightCluster) {
   int i = iStrip;
   bool peakOK = (thePulseHeightMap[i].phmax() > theThresholdForAPeak && heightCluster > theThresholdForCluster &&
                  // ... and proper peak time; note that the values below are used elsewhere in this file;
                  // they should become parameters or at least constants defined in appropriate place
                  thePulseHeightMap[i].tmax() > 2 && thePulseHeightMap[i].tmax() < 7);
   return peakOK;
 }
 
 /* findHitOnStripPosition
  *
  */
 float CSCHitFromStripOnly::findHitOnStripPosition(const std::vector<CSCStripHitData>& data, const int& centerStrip) {
   float strippos = -1.;
 
   if (data.empty())
     return strippos;
 
   // biggestStrip is strip with largest pulse height
   // Use pointer subtraction
 
   int biggestStrip = max_element(data.begin(), data.end()) - data.begin();
   strippos = data[biggestStrip].strip() * 1.;
 
   // If more than one strip:  use centroid to find center of cluster
   // but only use time bin == tmax (otherwise, bias centroid).
   float sum = 0.;
   float sum_w = 0.;
 
   //  std::vector<float> w(4);
   // std::vector<float> wRaw(4);
 
   for (size_t i = 0; i != data.size(); ++i) {
     auto const& w = data[i].ph();
     auto const& wRaw = data[i].phRaw();
 
     // (Require ADC to be > 0.)
     // No later studies suggest that this only do harm
     /*
     for ( size_t j = 0; j != w.size(); ++j ) {
       if ( w[j] < 0. ) w[j] = 0.001;
     }
     */
 
     // Fill the data members
     std::copy(w.begin(), w.end(), std::back_inserter(strips_adc));
     std::copy(wRaw.begin(), wRaw.end(), std::back_inserter(strips_adcRaw));
 
     if (data[i].strip() < 1) {
       LogTrace("CSCRecHit") << "[CSCHitFromStripOnly::findHitOnStripPosition] problem in indexing of strip, strip= "
                             << data[i].strip();
     }
     sum_w += w[1];
     sum += w[1] * data[i].strip();
   }
 
   if (sum_w > 0.)
     strippos = sum / sum_w;
 
   return strippos;
 }
 
 bool CSCHitFromStripOnly::isNearDeadStrip(const CSCDetId& id, int centralStrip, int nstrips) {
   //@@ Tim says: not sure I understand this properly... but just moved code to CSCRecoConditions
   // where it can handle the conversion from strip to channel etc.
   return recoConditions_->nearBadStrip(id, centralStrip, nstrips);
 }
 
 bool CSCHitFromStripOnly::isDeadStrip(const CSCDetId& id, int centralStrip, int nstrips) {
   return recoConditions_->badStrip(id, centralStrip, nstrips);
 }
 
 // Define space for static
 const int CSCHitFromStripOnly::theClusterSize;

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