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#include "PhysicsTools/RecoAlgos/interface/TrackWithVertexSelector.h"
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//
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// constructors and destructor
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//
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TrackWithVertexSelector::TrackWithVertexSelector(const edm::ParameterSet& iConfig) :
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numberOfValidHits_(iConfig.getParameter<uint32_t>("numberOfValidHits")),
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numberOfValidPixelHits_(iConfig.getParameter<uint32_t>("numberOfValidPixelHits")),
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numberOfLostHits_(iConfig.getParameter<uint32_t>("numberOfLostHits")),
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normalizedChi2_(iConfig.getParameter<double>("normalizedChi2")),
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ptMin_(iConfig.getParameter<double>("ptMin")),
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ptMax_(iConfig.getParameter<double>("ptMax")),
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etaMin_(iConfig.getParameter<double>("etaMin")),
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etaMax_(iConfig.getParameter<double>("etaMax")),
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dzMax_(iConfig.getParameter<double>("dzMax")),
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d0Max_(iConfig.getParameter<double>("d0Max")),
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nVertices_(iConfig.getParameter<bool>("useVtx") ? iConfig.getParameter<uint32_t>("nVertices") : 0),
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vertexTag_(iConfig.getParameter<edm::InputTag>("vertexTag")),
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vtxFallback_(iConfig.getParameter<bool>("vtxFallback")),
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zetaVtx_(iConfig.getParameter<double>("zetaVtx")),
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rhoVtx_(iConfig.getParameter<double>("rhoVtx")) {
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}
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TrackWithVertexSelector::~TrackWithVertexSelector() { }
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bool TrackWithVertexSelector::testTrack(const reco::Track &t) const {
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using std::abs;
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if ((t.numberOfValidHits() >= numberOfValidHits_) &&
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(static_cast<unsigned int>(t.hitPattern().numberOfValidPixelHits()) >= numberOfValidPixelHits_) &&
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(t.numberOfLostHits() <= numberOfLostHits_) &&
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(t.normalizedChi2() <= normalizedChi2_) &&
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(t.pt() >= ptMin_) &&
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(t.pt() <= ptMax_) &&
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(abs(t.eta()) <= etaMax_) &&
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(abs(t.eta()) >= etaMin_) &&
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(abs(t.dz()) <= dzMax_) &&
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(abs(t.d0()) <= d0Max_) ) {
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return true;
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}
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return false;
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}
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bool TrackWithVertexSelector::testVertices(const reco::Track &t, const reco::VertexCollection &vtxs) const {
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bool ok = false;
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const Point &pca = t.vertex();
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if (vtxs.size() > 0) {
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unsigned int tested = 1;
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for (reco::VertexCollection::const_iterator it = vtxs.begin(), ed = vtxs.end();
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it != ed; ++it) {
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if (testPoint(pca, it->position())) { ok = true; break; }
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if (tested++ >= nVertices_) break;
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}
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} else if (vtxFallback_) {
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return ( (std::abs(pca.z()) < 15.9) && (pca.Rho() < 0.2) );
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}
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return ok;
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}
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bool TrackWithVertexSelector::operator()(const reco::Track &t, const edm::Event &evt) const {
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using std::abs;
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if (!testTrack(t)) return false;
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if (nVertices_ == 0) return true;
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edm::Handle<reco::VertexCollection> hVtx;
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evt.getByLabel(vertexTag_, hVtx);
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return testVertices(t, *hVtx);
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}
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bool TrackWithVertexSelector::operator()(const reco::Track &t, const reco::VertexCollection &vtxs) const {
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using std::abs;
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if (!testTrack(t)) return false;
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if (nVertices_ == 0) return true;
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return testVertices(t, vtxs);
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}
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bool TrackWithVertexSelector::testPoint(const Point &point, const Point &vtx) const {
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using std::abs;
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math::XYZVector d = point - vtx;
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return ((abs(d.z()) < zetaVtx_) && (abs(d.Rho()) < rhoVtx_));
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}
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