AlignmentHelper.hpp

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// This file is part of the Acts project.
//
// Copyright (C) 2020 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 <utility>
#include <vector>

namespace Acts {

namespace detail {

// The container for derivative of local frame axis w.r.t. its
// rotation parameters. The first element is for x axis, second for y axis and
// last for z axis
using RotationToAxes =
    std::tuple<RotationMatrix3D, RotationMatrix3D, RotationMatrix3D>;

RotationToAxes rotationToLocalAxesDerivative(const RotationMatrix3D& rotation);

}  // namespace detail

}  // namespace Acts