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VisSiPixelCluster.cc

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//<<<<<< INCLUDES                                                       >>>>>>

#include "VisReco/Analyzer/interface/VisSiPixelCluster.h"
#include "VisReco/Analyzer/interface/IguanaService.h"
#include "DataFormats/Common/interface/DetSetVectorNew.h"
#include "DataFormats/SiPixelCluster/interface/SiPixelCluster.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "FWCore/Framework/interface/EventSetup.h"
#include "FWCore/Framework/interface/MakerMacros.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/ServiceRegistry/interface/Service.h"
#include "FWCore/Utilities/interface/Exception.h"
#include "Geometry/CommonDetUnit/interface/GeomDet.h"
#include "Geometry/TrackerGeometryBuilder/interface/PixelGeomDetUnit.h"
#include "Geometry/TrackerGeometryBuilder/interface/TrackerGeometry.h"
#include "Geometry/TrackerTopology/interface/RectangularPixelTopology.h"
#include "Geometry/Records/interface/TrackerDigiGeometryRecord.h"
#include "Iguana/Framework/interface/IgCollection.h"

//<<<<<< PRIVATE DEFINES                                                >>>>>>
//<<<<<< PRIVATE CONSTANTS                                              >>>>>>
//<<<<<< PRIVATE TYPES                                                  >>>>>>
//<<<<<< PRIVATE VARIABLE DEFINITIONS                                   >>>>>>
//<<<<<< PUBLIC VARIABLE DEFINITIONS                                    >>>>>>
//<<<<<< CLASS STRUCTURE INITIALIZATION                                 >>>>>>
//<<<<<< PRIVATE FUNCTION DEFINITIONS                                   >>>>>>
//<<<<<< PUBLIC FUNCTION DEFINITIONS                                    >>>>>>
//<<<<<< MEMBER FUNCTION DEFINITIONS                                    >>>>>>

using namespace edm::service;

VisSiPixelCluster::VisSiPixelCluster (const edm::ParameterSet& iConfig)
    : inputTag_ (iConfig.getParameter<edm::InputTag>("visSiPixelClusterTag"))
{}

void 
VisSiPixelCluster::analyze (const edm::Event& event, const edm::EventSetup& eventSetup)
{
    edm::Service<IguanaService> config;
    if (! config.isAvailable ()) 
    {
        throw cms::Exception ("Configuration")
            << "VisSiPixelCluster requires the IguanaService\n"
            "which is not present in the configuration file.\n"
            "You must add the service in the configuration file\n"
            "or remove the module that requires it";
    }
    
    edm::Handle<edmNew::DetSetVector<SiPixelCluster> > collection;
    event.getByLabel (inputTag_, collection);

    edm::ESHandle<TrackerGeometry> geom;
    eventSetup.get<TrackerDigiGeometryRecord> ().get (geom);

    if (collection.isValid () && geom.isValid ())
    {       
        IgDataStorage *storage = config->storage ();
        IgCollection &clusters = storage->getCollection ("SiPixelClusters_V1");
        IgProperty DET_ID   = clusters.addProperty ("detid", int (0)); 
        IgProperty POS      = clusters.addProperty ("pos", IgV3d());

        edmNew::DetSetVector<SiPixelCluster>::const_iterator it = collection->begin ();
        edmNew::DetSetVector<SiPixelCluster>::const_iterator end = collection->end ();

        for (; it != end; ++it)
        {
            edmNew::DetSet<SiPixelCluster> ds = *it;
            const uint32_t detID = it->detId ();
            DetId detid (detID);

            const PixelGeomDetUnit* theDet = dynamic_cast<const PixelGeomDetUnit *>(geom->idToDet (detid));
            const RectangularPixelTopology *theTopol = dynamic_cast<const RectangularPixelTopology *>( &(theDet->specificTopology ()));
            
            edmNew::DetSet<SiPixelCluster>::const_iterator icluster = it->begin ();
            edmNew::DetSet<SiPixelCluster>::const_iterator iclusterEnd = it->end ();

            for(; icluster != iclusterEnd; ++icluster)
            { 
                int row = (*icluster).minPixelRow ();
                int column = (*icluster).minPixelCol ();

                GlobalPoint pos = (geom->idToDet (detid))->surface().toGlobal (theTopol->localPosition (MeasurementPoint (row, column)));               
                IgCollectionItem item = clusters.create ();
                item[DET_ID] = static_cast<int> (detID);
                item[POS] = IgV3d(static_cast<double>(pos.x()/100.0), static_cast<double>(pos.y()/100.0), static_cast<double>(pos.z()/100.0));
            }
        }
    }
    else 
    {
        // friendlyName:moduleLabel:instanceName:processName
        std::string error = "### Error: SiPixel Clusters "
                            + edm::TypeID (typeid (edmNew::DetSetVector<SiPixelCluster>)).friendlyClassName () + ":" 
                            + inputTag_.label() + ":"
                            + inputTag_.instance() + ":" 
                            + inputTag_.process() + " are not found.";

        IgDataStorage *storage = config->storage ();
        IgCollection &collection = storage->getCollection ("Error_V1");
        IgProperty ERROR_MSG = collection.addProperty ("Error", std::string ());
        IgCollectionItem item = collection.create ();
        item [ERROR_MSG] = error;
    }
}

DEFINE_FWK_MODULE(VisSiPixelCluster);

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