Utilities/src/TracksToParameters.cpp

0001 // This file is part of the ACTS project.
0002 //
0003 // Copyright (C) 2016 CERN for the benefit of the ACTS project
0004 //
0005 // This Source Code Form is subject to the terms of the Mozilla Public
0006 // License, v. 2.0. If a copy of the MPL was not distributed with this
0007 // file, You can obtain one at https://mozilla.org/MPL/2.0/.
0008
0009 #include "ActsExamples/Utilities/TracksToParameters.hpp"
0010
0011 #include "Acts/EventData/TrackContainer.hpp"
0012 #include "Acts/EventData/TrackProxy.hpp"
0013 #include "ActsExamples/EventData/Track.hpp"
0014
0015 #include <utility>
0016
0017 namespace ActsExamples {
0018
0019 TracksToParameters::TracksToParameters(
0020     Config cfg, std::unique_ptr<const Acts::Logger> logger)
0021     : IAlgorithm("TracksToParameters", std::move(logger)),
0022       m_cfg(std::move(cfg)) {
0023   m_inputTracks.initialize(m_cfg.inputTracks);
0024   m_outputTrackParameters.initialize(m_cfg.outputTrackParameters);
0025 }
0026
0027 ProcessCode TracksToParameters::execute(const AlgorithmContext& ctx) const {
0028   const auto& tracks = m_inputTracks(ctx);
0029
0030   TrackParametersContainer trackParameters;
0031   trackParameters.reserve(tracks.size());
0032
0033   for (const auto& track : tracks) {
0034     if (!track.hasReferenceSurface()) {
0035       ACTS_ERROR("Track has no reference surface");
0036     } else {
0037       trackParameters.push_back(track.createParametersAtReference());
0038     }
0039   }
0040
0041   ACTS_DEBUG("Converted " << tracks.size() << " tracks to "
0042                           << trackParameters.size() << " track parameters");
0043
0044   m_outputTrackParameters(ctx, std::move(trackParameters));
0045
0046   return ProcessCode::SUCCESS;
0047 }
0048
0049 }  // namespace ActsExamples