FieldMapRootIo.hpp

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// This file is part of the Acts project.
//
// Copyright (C) 2017-2021 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/Definitions/Algebra.hpp"
#include "ActsExamples/MagneticField/MagneticField.hpp"

#include <array>
#include <cstddef>
#include <functional>
#include <string>

namespace ActsExamples {

detail::InterpolatedMagneticField2 makeMagneticFieldMapRzFromRoot(
    const std::function<size_t(std::array<size_t, 2> binsRZ,
                               std::array<size_t, 2> nBinsRZ)>&
        localToGlobalBin,
    const std::string& fieldMapFile, const std::string& treeName,
    Acts::ActsScalar lengthUnit, Acts::ActsScalar BFieldUnit,
    bool firstQuadrant = false);

detail::InterpolatedMagneticField3 makeMagneticFieldMapXyzFromRoot(
    const std::function<size_t(std::array<size_t, 3> binsXYZ,
                               std::array<size_t, 3> nBinsXYZ)>&
        localToGlobalBin,
    const std::string& fieldMapFile, const std::string& treeName,
    Acts::ActsScalar lengthUnit, Acts::ActsScalar BFieldUnit,
    bool firstOctant = false);

}  // namespace ActsExamples