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OccupancyProjector.cpp

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#include "Sct/SctParameters.h"
#include "OccupancyProjector.h"
#include "ModuleDefectList.h"
#include "TH1.h"
#include "TH2.h"

namespace SctData{
    using namespace Sct;

    OccupancyProjector::OccupancyProjector() throw() : raw(0) {
    unsetVetos();
    }

    OccupancyProjector::OccupancyProjector(const RawScanResult& r) throw() : raw(&r) {
    unsetVetos();
    }

    OccupancyProjector::~OccupancyProjector() throw() {;}
    
    void OccupancyProjector::vetoAllDefects(const ModuleDefectList& l) throw(){
    defects=&l; m_vetoAllDefects=true;
    }
    void OccupancyProjector::vetoSevereDefects(const ModuleDefectList& l) throw(){
    defects=&l;
    }
    //void OccupancyProjector::setRawScanResult(const RawScanResult& r) throw(){
    //  raw=&r; unsetVetos();
    //}
    void OccupancyProjector::vetoMaskedChannels(const ModuleConfiguration& c) throw(){
    config=&c;
    }
    void OccupancyProjector::unsetVetos() throw(){
    config=0; defects=0; m_vetoAllDefects = false;
    }

    auto_ptr<TH1> OccupancyProjector::getOccupancy(const char* name, const ModuleElement& element) const throw (LogicError) {
    if (!raw) throw IllegalStateError("OccupancyProjector::getOccupancy no raw result", __FILE__, __LINE__);

    double* bins = raw->getPoints().getEdges();
    auto_ptr<TH1> occ ( new TH1D(name, "Raw data projection", raw->getPoints().getNPoints(), bins) );
    delete[] bins;
    
    //Explicit binomial errors.
    for (unsigned int j=0; j<raw->getPoints().getNPoints(); ++j){
        Stat_t n=raw->getPoints().getNEvents(j); 
        double z=0;
        unsigned int nChans = 0;
        
        //Do projection, taking into account that we might want data on both links
        for (unsigned int i=element.getFirst(); i<=element.getLast(); ++i) {
        if (config) {
            if (config->channelIsMasked(i) ) continue;
        }
        if (defects) {
            if (m_vetoAllDefects && defects->defectAffectingElement(Channel(i)) ) continue;
            if (defects->severeDefectAffectingElement(Channel(i)) ) continue;
        }
        // Make sure to get correct scan data TH2:
        z += raw->getScanData(i/nChannelLink).GetBinContent(i%nChannelLink+1, j+1);
        nChans++;
        }
        
        if (n==0 || nChans==0) {
        // no triggers.
        occ->SetBinContent(j+1, z);
        occ->SetBinError(j+1, 0);
        continue;
        }
        n*=nChans;                         // number of triggers corrected for #channels
        
        double err2=(z+1)*(n-z+1)/(n*n*n);
        double occupancy=z/n;
        
        occ->SetBinContent(j+1, occupancy);
        occ->SetBinError(j+1,sqrt(err2));
    }       
    return occ;
    }
    
}// end of namepace SctData

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