VertexFitterAlgorithm.hpp

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// This file is part of the Acts project.
//
// Copyright (C) 2016-2019 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/Utilities/Definitions.hpp"
#include "Acts/Utilities/Units.hpp"
#include "ActsExamples/Framework/BareAlgorithm.hpp"

#include <string>

namespace ActsExamples {

class VertexFitterAlgorithm final : public BareAlgorithm {
 public:
  struct Config {
    std::string inputTrackParameters;
    std::string inputProtoVertices;
    Acts::Vector3D bField = Acts::Vector3D::Zero();
    bool doConstrainedFit = false;
    Acts::Vector3D constraintPos = Acts::Vector3D(0, 0, 0);
    Acts::SymMatrix3D constraintCov =
        Acts::Vector3D(3 * Acts::UnitConstants::mm, 3 * Acts::UnitConstants::mm,
                       10 * Acts::UnitConstants::mm)
            .asDiagonal();
  };

  VertexFitterAlgorithm(const Config& cfg, Acts::Logging::Level lvl);

  ProcessCode execute(const AlgorithmContext& ctx) const final;

 private:
  Config m_cfg;
};

}  // namespace ActsExamples