/data/refman/pasoursint/CMSSW_4_4_5_patch3/src/Alignment/SurveyAnalysis/plugins/SurveyInputCSCfromPins.cc

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#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "Alignment/CommonAlignment/interface/SurveyDet.h"
#include "Geometry/DTGeometry/interface/DTGeometry.h"
#include "Geometry/Records/interface/MuonGeometryRecord.h"
#include "Alignment/MuonAlignment/interface/AlignableMuon.h"
#include <FWCore/Framework/interface/ESHandle.h> 
#include "Alignment/CommonAlignment/interface/AlignableNavigator.h"
#include "FWCore/Framework/interface/EventSetup.h"
#include "Geometry/Records/interface/IdealGeometryRecord.h"
#include "DataFormats/DetId/interface/DetId.h"

#include "Alignment/MuonAlignment/interface/AlignableCSCChamber.h"
#include "Alignment/MuonAlignment/interface/AlignableCSCStation.h"

#include <iostream>
#include <fstream>
#include "TFile.h"
#include "TTree.h"
#include "TRandom3.h"

#include "SurveyInputCSCfromPins.h"

#define SQR(x) ((x)*(x))

SurveyInputCSCfromPins::SurveyInputCSCfromPins(const edm::ParameterSet& cfg)
  : m_pinPositions(cfg.getParameter<std::string>("pinPositions"))
  , m_rootFile(cfg.getParameter<std::string>("rootFile"))
  , m_verbose(cfg.getParameter<bool>("verbose"))
  , m_errorX(cfg.getParameter<double>("errorX"))
  , m_errorY(cfg.getParameter<double>("errorY"))
  , m_errorZ(cfg.getParameter<double>("errorZ"))
  , m_missingErrorTranslation(cfg.getParameter<double>("missingErrorTranslation"))
  , m_missingErrorAngle(cfg.getParameter<double>("missingErrorAngle"))
  , m_stationErrorX(cfg.getParameter<double>("stationErrorX"))
  , m_stationErrorY(cfg.getParameter<double>("stationErrorY"))
  , m_stationErrorZ(cfg.getParameter<double>("stationErrorZ"))
  , m_stationErrorPhiX(cfg.getParameter<double>("stationErrorPhiX"))
  , m_stationErrorPhiY(cfg.getParameter<double>("stationErrorPhiY"))
  , m_stationErrorPhiZ(cfg.getParameter<double>("stationErrorPhiZ"))
{}

void SurveyInputCSCfromPins::orient(LocalVector LC1, LocalVector LC2, double a, double b, double &T, double &dx, double &dy, double &dz, double &PhX, double &PhZ) {
   double cosPhX, sinPhX, cosPhZ, sinPhZ;

   LocalPoint LP1(LC1.x(), LC1.y() + a, LC1.z() + b);
   LocalPoint LP2(LC2.x(), LC2.y() - a, LC2.z() + b);
  
   LocalPoint P((LP1.x() - LP2.x())/(2.*a), (LP1.y() - LP2.y())/(2.*a), (LP1.z() - LP2.z())/(2.*a));
   LocalPoint Pp((LP1.x() + LP2.x())/(2.), (LP1.y() + LP2.y())/(2.), (LP1.z() + LP2.z())/(2.));
    
   T=P.mag();
        
   sinPhX=P.z()/T;
   cosPhX=sqrt(1-SQR(sinPhX));
   cosPhZ=P.y()/(T*cosPhX);
   sinPhZ=-P.x()/(T*cosPhZ);
                
   PhX=atan2(sinPhX,cosPhX);
        
   PhZ=atan2(sinPhZ,cosPhZ);
        
   dx=Pp.x()-sinPhZ*sinPhX*b;
   dy=Pp.y()+cosPhZ*sinPhX*b;
   dz=Pp.z()-cosPhX*b;
}

void SurveyInputCSCfromPins::errors(double a, double b, bool missing1, bool missing2, double &dx_dx, double &dy_dy, double &dz_dz, double &phix_phix, double &phiz_phiz, double &dy_phix) {
   dx_dx = 0.;
   dy_dy = 0.;
   dz_dz = 0.;
   phix_phix = 0.;
   phiz_phiz = 0.;
   dy_phix = 0.;

   const double trials = 10000.;  // two significant digits

   for (int i = 0;  i < trials;  i++) {
      LocalVector LC1, LC2;
      if (missing1) {
         LC1 = LocalVector(gRandom->Gaus(0., m_missingErrorTranslation), gRandom->Gaus(0., m_missingErrorTranslation), gRandom->Gaus(0., m_missingErrorTranslation));
      }
      else {
         LC1 = LocalVector(gRandom->Gaus(0., m_errorX), gRandom->Gaus(0., m_errorY), gRandom->Gaus(0., m_errorZ));
      }

      if (missing2) {
         LC2 = LocalVector(gRandom->Gaus(0., m_missingErrorTranslation), gRandom->Gaus(0., m_missingErrorTranslation), gRandom->Gaus(0., m_missingErrorTranslation));
      }
      else {
         LC2 = LocalVector(gRandom->Gaus(0., m_errorX), gRandom->Gaus(0., m_errorY), gRandom->Gaus(0., m_errorZ));
      }

      double dx, dy, dz, PhX, PhZ, T;
      orient(LC1, LC2, a, b, T, dx, dy, dz, PhX, PhZ);

      dx_dx += dx * dx;
      dy_dy += dy * dy;
      dz_dz += dz * dz;
      phix_phix += PhX * PhX;
      phiz_phiz += PhZ * PhZ;
      dy_phix += dy * PhX;      // the only non-zero off-diagonal element
   }

   dx_dx /= trials;
   dy_dy /= trials;
   dz_dz /= trials;
   phix_phix /= trials;
   phiz_phiz /= trials;
   dy_phix /= trials;
}

void SurveyInputCSCfromPins::analyze(const edm::Event&, const edm::EventSetup& iSetup)
{
  if (theFirstEvent) {

        edm::LogInfo("SurveyInputCSCfromPins") << "***************ENTERING INITIALIZATION******************" << "  \n";
        
        std::ifstream in;
        in.open(m_pinPositions.c_str());
  
        Double_t x1, y1, z1, x2, y2, z2, a, b, tot=0.0, maxErr=0.0, h, s1, dx, dy, dz, PhX, PhZ, T;
   
        int ID1, ID2, ID3, ID4, ID5, i=1, ii=0;
        
        TFile *file1 = new TFile(m_rootFile.c_str(),"recreate");
        TTree *tree1 = new TTree("tree1","alignment pins");
      
        if (m_verbose) {
   
                tree1->Branch("displacement_x_pin1_cm", &x1, "x1/D");
                tree1->Branch("displacement_y_pin1_cm", &y1, "y1/D");
                tree1->Branch("displacement_z_pin1_cm", &z1, "z1/D");
                tree1->Branch("displacement_x_pin2_cm", &x2, "x2/D");
                tree1->Branch("displacement_y_pin2_cm", &y2, "y2/D");
                tree1->Branch("displacement_z_pin2_cm", &z2, "z2/D");     
                tree1->Branch("error_vector_length_cm",&h, "h/D"); 
                tree1->Branch("stretch_diff_cm",&s1, "s1/D");
                tree1->Branch("stretch_factor",&T, "T/D");
                tree1->Branch("chamber_displacement_x_cm",&dx, "dx/D");
                tree1->Branch("chamber_displacement_y_cm",&dy, "dy/D");
                tree1->Branch("chamber_displacement_z_cm",&dz, "dz/D");
                tree1->Branch("chamber_rotation_x_rad",&PhX, "PhX/D");
                tree1->Branch("chamber_rotation_z_rad",&PhZ, "PhZ/D");
        }
  
        edm::ESHandle<DTGeometry> dtGeometry;
        edm::ESHandle<CSCGeometry> cscGeometry;
        iSetup.get<MuonGeometryRecord>().get( dtGeometry );     
        iSetup.get<MuonGeometryRecord>().get( cscGeometry );
 
        AlignableMuon* theAlignableMuon = new AlignableMuon( &(*dtGeometry) , &(*cscGeometry) );
        AlignableNavigator* theAlignableNavigator = new AlignableNavigator( theAlignableMuon );
 
        std::vector<Alignable*> theEndcaps = theAlignableMuon->CSCEndcaps();
 
        for (std::vector<Alignable*>::const_iterator aliiter = theEndcaps.begin();  aliiter != theEndcaps.end();  ++aliiter) {
     
                addComponent(*aliiter);
        }
    
        
        while (in.good())
        {
           bool missing1 = false;
           bool missing2 = false;
    
                in >> ID1 >> ID2 >> ID3 >> ID4 >> ID5 >> x1 >> y1 >> z1 >> x2 >> y2 >> z2 >> a >> b;

                if (fabs(x1 - 1000.) < 1e5  &&  fabs(y1 - 1000.) < 1e5  &&  fabs(z1 - 1000.) < 1e5) {
                   missing1 = true;
                   x1 = x2;
                   y1 = y2;
                   z1 = z2;
                }

                if (fabs(x2 - 1000.) < 1e5  &&  fabs(y2 - 1000.) < 1e5  &&  fabs(z2 - 1000.) < 1e5) {
                   missing2 = true;
                   x2 = x1;
                   y2 = y1;
                   z2 = z1;
                }

                x1=x1/10.0;
                y1=y1/10.0;
                z1=z1/10.0;
                x2=x2/10.0;
                y2=y2/10.0;
                z2=z2/10.0;
   
                CSCDetId layerID(ID1, ID2, ID3, ID4, 1);
                
                // We cannot use chamber ID (when ID5=0), because AlignableNavigator gives the error (aliDet and aliDetUnit are undefined for chambers)
                
                
                Alignable* theAlignable1 = theAlignableNavigator->alignableFromDetId( layerID ); 
                Alignable* chamberAli=theAlignable1->mother();

                LocalVector LC1 = chamberAli->surface().toLocal(GlobalVector(x1,y1,z1));
                LocalVector LC2 = chamberAli->surface().toLocal(GlobalVector(x2,y2,z2));
  
                orient(LC1, LC2, a, b, T, dx, dy, dz, PhX, PhZ);        
   
                GlobalPoint PG1 = chamberAli->surface().toGlobal(LocalPoint(LC1.x(), LC1.y() + a, LC1.z() + b));
                GlobalPoint PG2 = chamberAli->surface().toGlobal(LocalPoint(LC2.x(), LC2.y() - a, LC2.z() + b));
 
        
                LocalVector lvector( dx, dy, dz);
                GlobalVector gvector = ( chamberAli->surface()).toGlobal( lvector );
                chamberAli->move( gvector );
  
                chamberAli->rotateAroundLocalX( PhX );
                chamberAli->rotateAroundLocalZ( PhZ );
                
                double dx_dx, dy_dy, dz_dz, phix_phix, phiz_phiz, dy_phix;
                errors(a, b, missing1, missing2, dx_dx, dy_dy, dz_dz, phix_phix, phiz_phiz, dy_phix);
                align::ErrorMatrix error = ROOT::Math::SMatrixIdentity();
                error(0,0) = dx_dx;
                error(1,1) = dy_dy;
                error(2,2) = dz_dz;
                error(3,3) = phix_phix;
                error(4,4) = m_missingErrorAngle;
                error(5,5) = phiz_phiz;
                error(1,3) = dy_phix;
                error(3,1) = dy_phix;  // just in case

                chamberAli->setSurvey( new SurveyDet(chamberAli->surface(), error) );
    
                if (m_verbose) {
                        
                        edm::LogInfo("SurveyInputCSCfromPins") << " survey information = " << chamberAli->survey() << "  \n";
                        
                        LocalPoint LP1n = chamberAli->surface().toLocal(PG1);
        
                        LocalPoint hiP(LP1n.x(), LP1n.y() - a*T, LP1n.z() - b);

                        h=hiP.mag();
                        s1=LP1n.y() - a;

                        if (h>maxErr) { maxErr=h; 
                        
                                ii=i;
                        }
        
                        edm::LogInfo("SurveyInputCSCfromPins") << "  \n" 
                         << "i " << i++ << " " << ID1 << " " << ID2 << " " << ID3 << " " << ID4 << " " << ID5 << " error  " << h  << " \n"      
                         <<" x1 " << x1 << " y1 " << y1 << " z1 " << z1 << " x2 " << x2 << " y2 " << y2 << " z2 " << z2  << " \n"
                         << " error " << h <<  " S1 " << s1 << " \n"
                         <<" dx " << dx << " dy " << dy << " dz " << dz << " PhX " << PhX << " PhZ " << PhZ  << " \n";

                        tot+=h;
        
                        tree1->Fill();
                        }
        
        } 
 
        in.close();

        if (m_verbose) {
        
                file1->Write();
                edm::LogInfo("SurveyInputCSCfromPins") << " Total error  " << tot << "  Max Error " << maxErr << " N " << ii << "  \n";
        }

        file1->Close();
   
        for (std::vector<Alignable*>::const_iterator aliiter = theEndcaps.begin();  aliiter != theEndcaps.end();  ++aliiter) {
     
                fillAllRecords(*aliiter);
        } 

        delete theAlignableMuon;
        delete theAlignableNavigator;

        edm::LogInfo("SurveyInputCSCfromPins") << "*************END INITIALIZATION***************" << "  \n";

        theFirstEvent = false;
  }
}


void SurveyInputCSCfromPins::fillAllRecords(Alignable *ali) {
        if (ali->survey() == 0) {

           AlignableCSCChamber *ali_AlignableCSCChamber = dynamic_cast<AlignableCSCChamber*>(ali);
           AlignableCSCStation *ali_AlignableCSCStation = dynamic_cast<AlignableCSCStation*>(ali);

           if (ali_AlignableCSCChamber != 0) {
              CSCDetId detid(ali->geomDetId());
              if (abs(detid.station()) == 1  &&  (detid.ring() == 1  ||  detid.ring() == 4)) {
                 align::ErrorMatrix error = ROOT::Math::SMatrixIdentity();
                 error(0,0) = m_missingErrorTranslation;
                 error(1,1) = m_missingErrorTranslation;
                 error(2,2) = m_missingErrorTranslation;
                 error(3,3) = m_missingErrorAngle;
                 error(4,4) = m_missingErrorAngle;
                 error(5,5) = m_missingErrorAngle;

                 ali->setSurvey(new SurveyDet(ali->surface(), error));
              }
              else {
                 double a = 100.;
                 double b = -9.4034;
                 if      (abs(detid.station()) == 1  &&  detid.ring() == 2) a = -90.260;
                 else if (abs(detid.station()) == 1  &&  detid.ring() == 3) a = -85.205;
                 else if (abs(detid.station()) == 2  &&  detid.ring() == 1) a = -97.855;
                 else if (abs(detid.station()) == 2  &&  detid.ring() == 2) a = -164.555;
                 else if (abs(detid.station()) == 3  &&  detid.ring() == 1) a = -87.870;
                 else if (abs(detid.station()) == 3  &&  detid.ring() == 2) a = -164.555;
                 else if (abs(detid.station()) == 4  &&  detid.ring() == 1) a = -77.890;

                double dx_dx, dy_dy, dz_dz, phix_phix, phiz_phiz, dy_phix;
                errors(a, b, true, true, dx_dx, dy_dy, dz_dz, phix_phix, phiz_phiz, dy_phix);
                align::ErrorMatrix error = ROOT::Math::SMatrixIdentity();
                error(0,0) = dx_dx;
                error(1,1) = dy_dy;
                error(2,2) = dz_dz;
                error(3,3) = phix_phix;
                error(4,4) = m_missingErrorAngle;
                error(5,5) = phiz_phiz;
                error(1,3) = dy_phix;
                error(3,1) = dy_phix;  // just in case

                ali->setSurvey(new SurveyDet(ali->surface(), error));
              }
           }

           else if (ali_AlignableCSCStation != 0) {
              align::ErrorMatrix error = ROOT::Math::SMatrixIdentity();
              error(0,0) = m_stationErrorX;
              error(1,1) = m_stationErrorY;
              error(2,2) = m_stationErrorZ;
              error(3,3) = m_stationErrorPhiX;
              error(4,4) = m_stationErrorPhiY;
              error(5,5) = m_stationErrorPhiZ;

              ali->setSurvey(new SurveyDet(ali->surface(), error));
           }

           else {
              align::ErrorMatrix error = ROOT::Math::SMatrixIdentity();
              ali->setSurvey(new SurveyDet(ali->surface(), error*(1e-10)));
           }
        }

        std::vector<Alignable*> components = ali->components();
        for (std::vector<Alignable*>::const_iterator iter = components.begin();  iter != components.end();  ++iter) {
        
                fillAllRecords(*iter);
        }
}


// Plug in to framework
#include "FWCore/Framework/interface/MakerMacros.h"
DEFINE_FWK_MODULE(SurveyInputCSCfromPins);