TrackAtVertex.hpp

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// This file is part of the Acts project.
//
// Copyright (C) 2019 CERN for the benefit of the Acts project
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.

#pragma once

#include "Acts/EventData/TrackParameters.hpp"
#include "Acts/Vertexing/LinearizedTrack.hpp"

#include <functional>

namespace Acts {


template <typename input_track_t>
struct TrackAtVertex {
  TrackAtVertex() = delete;

  TrackAtVertex(double chi2perTrack, const BoundTrackParameters& paramsAtVertex,
                const input_track_t* originalTrack)
      : fittedParams(paramsAtVertex),
        originalParams(originalTrack),
        chi2Track(chi2perTrack) {}

  TrackAtVertex(const BoundTrackParameters& paramsAtVertex,
                const input_track_t* originalTrack)
      : fittedParams(paramsAtVertex), originalParams(originalTrack) {}

  BoundTrackParameters fittedParams;

  const input_track_t* originalParams;

  double chi2Track = 0;

  double ndf = 0;

  double vertexCompatibility = 0;

  double trackWeight = 1;

  LinearizedTrack linearizedState;

  bool isLinearized = false;
};

}  // namespace Acts