shwf::ShowerFinder Class Reference

Inheritance diagram for shwf::ShowerFinder:

Public Member Functions
	ShowerFinder (fhicl::ParameterSet const &)

Private Member Functions
void	produce (art::Event &evt)

Private Attributes
std::string	fVertexModuleLabel
	label of module finding 2D endpoint More...
std::string	fClusterModuleLabel
	label of module finding clusters More...
std::string	fHoughLineModuleLabel
	label of module finding hough line More...
std::string	fVertexStrengthModuleLabel
	label of module finding 2D endpoint More...
double	fRcone
	radious of cone for method More...
double	fLcone
	length of the cone More...

Detailed Description

Definition at line 42 of file ShowerFinder_module.cc.

Constructor & Destructor Documentation

shwf::ShowerFinder::ShowerFinder ( fhicl::ParameterSet const &  pset )

explicit

Definition at line 63 of file ShowerFinder_module.cc.

                                                           :
    EDProducer{pset}
  {
    fVertexModuleLabel        = pset.get<std::string > ("VertexModuleLabel");
    fClusterModuleLabel       = pset.get<std::string > ("ClusterModuleLabel");
    fHoughLineModuleLabel     = pset.get<std::string > ("HoughLineModuleLabel");
    fVertexStrengthModuleLabel= pset.get<std::string > ("VertexStrengthModuleLabel");
    fRcone                    = pset.get<double      > ("Rcone");
    fLcone                    = pset.get<double      > ("Lcone");

    produces< std::vector<recob::Shower>                >();
    produces< art::Assns<recob::Shower, recob::Cluster> >();
    produces< art::Assns<recob::Shower, recob::Hit>     >();
  }

Member Function Documentation

void shwf::ShowerFinder::produce ( art::Event &  evt )

private

Todo:

This method appears to produce a recob::Cluster really as it is

a collection of 2D clusters from single planes

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Todo:

NEED TO TAKE OUT THE HOUGH LINES FROM THE PROTOSHOWERS!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Todo:

really need to determine the values of the arguments of the recob::Shower ctor

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Todo:

check if protoshower from further vertex is also contained in vertex nearer...

Definition at line 83 of file ShowerFinder_module.cc.

  {

    std::unique_ptr<std::vector<recob::Shower> > showercol(new std::vector<recob::Shower>);
    std::unique_ptr< art::Assns<recob::Shower, recob::Cluster> > cassn(new art::Assns<recob::Shower, recob::Cluster>);
    std::unique_ptr< art::Assns<recob::Shower, recob::Hit>     > hassn(new art::Assns<recob::Shower, recob::Hit>);

    // Read in the vertex List object(s).
    art::Handle< std::vector<recob::EndPoint2D> > vertexListHandle;
    evt.getByLabel(fVertexModuleLabel,vertexListHandle);

    // Read in the hough line List object(s).
    art::Handle< std::vector<recob::Cluster> > houghListHandle;
    evt.getByLabel(fHoughLineModuleLabel,houghListHandle);

    // Read in the cluster List object(s).
    art::Handle< std::vector<recob::Cluster> > clusterListHandle;
    evt.getByLabel(fClusterModuleLabel,clusterListHandle);

    art::FindManyP<recob::Hit> fmh(clusterListHandle, evt, fClusterModuleLabel);

    // Read in the vertex Strength List object(s).
    art::Handle< std::vector<recob::EndPoint2D> > vertexStrengthListHandle;
    evt.getByLabel(fVertexStrengthModuleLabel,vertexStrengthListHandle);

    std::vector<size_t> protoShowers; //vector of indices of clusters associated to a cone

    std::vector< art::Ptr<recob::Hit> > clusterhits; //hits in the cluster

    art::ServiceHandle<geo::Geometry const> geom;

    //This vector will contain all strong and strongest vertices
    art::PtrVector<recob::EndPoint2D> vertSel;

    //This loop is going over all the vertices in the event
    //and is interested in ONLY strong and strongest vertices.
    mf::LogInfo("ShowerFinder") << "Vertex STRENGTH list size = " << vertexStrengthListHandle->size()
                                << " AND vertices:" << vertexListHandle->size()
                                << "\nCLUSTER list size = " << clusterListHandle->size()
                                << " AND Hough: :" << houghListHandle->size();

    for(size_t iv = 0; iv < vertexListHandle->size(); ++iv){
      art::Ptr<recob::EndPoint2D> vertex(vertexListHandle, iv);
      //std::cout << "Vertex " << iv << " :  str = " << vertex->ID() << std::endl;
      //if(vertex->Strength() == 4 || vertex->Strength() == 3){
      if(vertex->ID() == 1 || vertex->Strength() == 3){ //only use Strongest and strong
        vertSel.push_back(vertex);
      }
      else continue;
    }

    //Definition of the geometry of the cone (which is basically a triangle)
    double scan_angle = 0; //angle of the scan steps
    double xa_cone = 0; // x coordinate of the cone's apex (wire number)
    double ya_cone = 0; // y coordinate of the cone's apex (drift time)
    double x1_cone = 0; // x coordinate of the cone's top right point (wire number)
    double y1_cone = 0; // y coordinate of the cone's top right point (drift time)
    double x2_cone = 0; // x coordinate of the cone's top left point (wire number)
    double y2_cone = 0; // y coordinate of the cone's top left point  (drift time)

    //The length of the side of the cone
    double fScone = std::sqrt( (fRcone*fRcone) + (fLcone*fLcone));

    // Opening angle of the cone (defined from input parameters)
    double cone_angle = (TMath::ATan(fRcone / fLcone)) / 2.0;
    mf::LogInfo("ShowerFinder") << "Cone Opening Angle: " << (180.0*cone_angle)/TMath::Pi();
    double compl_angle = 0;

    unsigned int n_scan =1 + (int)(TMath::Pi() / (2.0*cone_angle));
    mf::LogInfo("ShowerFinder") << "N scan: " << n_scan;

    double x_hit = 0; //x coordinate of hit
    double y_hit = 0; //y coordinate of hit

    int hits_cluster_counter = 0; //count the number of hits in a cluster that is inside a cone
    //int hits_cluster_Total = 0; //The total number of hits in a cluster

    // For EVERY vertex, the algorithm is going to scan the plane to find clusters
    // contained in the scanning cones

    for(size_t ivert = 0; ivert < vertSel.size(); ++ivert){

      mf::LogInfo("ShowerFinder") << "Number of STRONG vertices = " << vertSel.size();

      //get the coordinates of the vertex for the summit of the cone
      xa_cone = vertSel[ivert]->WireID().Wire;   //for update to EndPoint2D ... WK 4/22/13
      ya_cone = vertSel[ivert]->DriftTime();

      mf::LogInfo("ShowerFinder") << "Vertex at: (" << xa_cone << ", " << ya_cone << ")";

      //Beginning of the scan!
      for(unsigned int iscan = 0; iscan < n_scan; ++iscan){

        mf::LogInfo("ShowerFinder") << ">>>> Start SCAN: " << iscan;

        //define the scan anlge
        scan_angle = (TMath::Pi()/2.0) - (iscan*(2.0*cone_angle));

        mf::LogInfo("ShowerFinder") << "Scan Angle: " << (180.*scan_angle)/TMath::Pi();

        //get the complementary angle for geometry puurposes
        compl_angle = scan_angle - cone_angle;

        //Calculate the coordinates of the top right corner of the cone
        x1_cone = xa_cone + fScone*(std::cos(compl_angle));
        y1_cone = ya_cone + fScone*(std::sin(compl_angle));

        //Calculate the coordinates of the top left corner of the cone
        x2_cone = xa_cone + fScone*(std::cos(scan_angle + cone_angle));
        y2_cone = ya_cone + fScone*(std::sin(scan_angle + cone_angle));

        //Looking if a cluster is in this cone (loop over all hits of all clusters)
        protoShowers.clear();
        for(size_t iclust = 0; iclust < clusterListHandle->size(); ++iclust){

        //  art::Ptr<recob::Cluster> clust(clusterListHandle, iclust);
          recob::Cluster const& clust = clusterListHandle->at(iclust);

          //Get the hits vector from the cluster
          clusterhits = fmh.at(iclust);
          if(clusterhits.size() == 0) continue;

          //Loop over ALL hits in the cluster. Looking if the cluster's
          // hit is comprised in the cone
          for(size_t ihits = 0; ihits < clusterhits.size(); ++ihits){


            x_hit = clusterhits[ihits]->WireID().Wire;   //for update to EndPoint2D ... WK 4/22/13
            y_hit = clusterhits[ihits]->PeakTime();

            // Check in hits is INSIDE cone

            //define the 2 line equations:
            if(y_hit <= ((y2_cone - ya_cone)/(x2_cone - xa_cone))*x_hit + ya_cone &&
               y_hit >= ((y1_cone - ya_cone)/(x1_cone - xa_cone))*x_hit + ya_cone){
              hits_cluster_counter++;
            }

          }//end hits loop

          //If there is more than 50% if the cluster INSIDE the cone, this is a protoshower
          if(clusterhits.size() == 0) continue;
          if(((double)hits_cluster_counter / (double)clusterhits.size()) >= 0.5){
            mf::LogInfo("ShowerFinder") << "GOT A SHOWER!!!  in scan " << iscan
                                        << "  cluster: " << iclust << " : " << clust.ID();

            //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
            /// \todo NEED TO TAKE OUT THE HOUGH LINES FROM THE PROTOSHOWERS!!!!!
            //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

            protoShowers.push_back(iclust);
          }
          clusterhits.clear();
          hits_cluster_counter = 0;

        } //end cluster loop

        if(protoShowers.empty()) continue;

        // loop over hits in the protoShowers to determine the total charge of the shower
        double totalCharge = 0.;

        for(size_t p = 0; p < protoShowers.size(); ++p){
          const size_t psIndex = protoShowers[p];
          for (art::Ptr<recob::Hit> const& hit: fmh.at(psIndex))
            if(hit->SignalType() == geo::kCollection) totalCharge += hit->Integral();
        }

        /// \todo really need to determine the values of the arguments of the recob::Shower ctor
        // fill with bogus values for now
        //double dcosVtx[3]    = { util::kBogusD };
        //double dcosVtxErr[3] = { util::kBogusD };
        //double maxTransWidth[2] = { util::kBogusD };
        //double distMaxWidth = util::kBogusD;

        //showercol->push_back( recob::Shower(dcosVtx, dcosVtxErr, maxTransWidth, totalCharge, distMaxWidth) );
        showercol->push_back(recob::Shower());

        // associate the shower with its clusters
        util::CreateAssn(*this, evt, *cassn,
          showercol->size() - 1, protoShowers.begin(), protoShowers.end());

        // get the hits associated with each cluster and associate those with the shower
        for(size_t p = 0; p < protoShowers.size(); ++p){
          const size_t psIndex = protoShowers[p];
          std::vector< art::Ptr<recob::Hit> > hits = fmh.at(psIndex);
          util::CreateAssn(*this, evt, *showercol, hits, *hassn);
        }

      } //end scan loop
    } //end vertices loop

    //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    //NEED TO SEPARATE THE SHOWERS FROM THE DIFFERENT VERTEX!!!!
    //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!


    mf::LogInfo("ShowerFinder") << "--->  Recorded shower =  "<< showercol->size();
      /// \todo check if protoshower from further vertex is also contained in vertex nearer...
      //if the shower is stand alone ok, else, erase the next one
      //shower.SetID(is);
      //shower.SetVertexCoord(xa_cone, ya_cone);

    vertSel.clear();

    evt.put(std::move(showercol));
    evt.put(std::move(cassn));
    evt.put(std::move(hassn));

    return;
  } // end of produce

Member Data Documentation

std::string shwf::ShowerFinder::fClusterModuleLabel

private

label of module finding clusters

Definition at line 50 of file ShowerFinder_module.cc.

std::string shwf::ShowerFinder::fHoughLineModuleLabel

private

label of module finding hough line

Definition at line 51 of file ShowerFinder_module.cc.

double shwf::ShowerFinder::fLcone

private

length of the cone

Definition at line 54 of file ShowerFinder_module.cc.

double shwf::ShowerFinder::fRcone

private

radious of cone for method

Definition at line 53 of file ShowerFinder_module.cc.

std::string shwf::ShowerFinder::fVertexModuleLabel

private

label of module finding 2D endpoint

Definition at line 49 of file ShowerFinder_module.cc.

std::string shwf::ShowerFinder::fVertexStrengthModuleLabel

private

label of module finding 2D endpoint

Definition at line 52 of file ShowerFinder_module.cc.

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The documentation for this class was generated from the following file:

• ShowerFinder_module.cc