JacobianEngine.hpp

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// This file is part of the Acts project.
//
// Copyright (C) 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

// Workaround for building on clang+libstdc++
#include "Acts/Utilities/detail/ReferenceWrapperAnyCompat.hpp"

#include "Acts/Definitions/Algebra.hpp"
#include "Acts/EventData/TrackParameters.hpp"
#include "Acts/Geometry/GeometryContext.hpp"
#include "Acts/Surfaces/Surface.hpp"

namespace Acts {

namespace detail {

FreeToBoundMatrix freeToCurvilinearJacobian(const Vector3& direction);

BoundToFreeMatrix curvilinearToFreeJacobian(const Vector3& direction);

ActsMatrix<7, 8> directionToAnglesJacobian(const Vector3& direction);

ActsMatrix<8, 7> anglesToDirectionJacobian(const Vector3& direction);

BoundMatrix boundToBoundTransportJacobian(
    const GeometryContext& geoContext, const FreeVector& freeParameters,
    const BoundToFreeMatrix& boundToFreeJacobian,
    const FreeMatrix& freeTransportJacobian,
    const FreeVector& freeToPathDerivatives, const Surface& surface);

BoundMatrix boundToCurvilinearTransportJacobian(
    const Vector3& direction, const BoundToFreeMatrix& boundToFreeJacobian,
    const FreeMatrix& freeTransportJacobian,
    const FreeVector& freeToPathDerivatives);

BoundToFreeMatrix boundToFreeTransportJacobian(
    const BoundToFreeMatrix& boundToFreeJacobian,
    const FreeMatrix& freeTransportJacobian);

FreeToBoundMatrix freeToBoundTransportJacobian(
    const GeometryContext& geoContext, const FreeVector& freeParameters,
    const ActsMatrix<7, 8>& directionToAnglesJacobian,
    const ActsMatrix<8, 7>& anglesToDirectionJacobian,
    const FreeMatrix& freeTransportJacobian,
    const FreeVector& freeToPathDerivatives, const Surface& surface);

FreeToBoundMatrix freeToCurvilinearTransportJacobian(
    const Vector3& direction, const ActsMatrix<7, 8>& directionToAnglesJacobian,
    const ActsMatrix<8, 7>& anglesToDirectionJacobian,
    const FreeMatrix& freeTransportJacobian,
    const FreeVector& freeToPathDerivatives);

FreeMatrix freeToFreeTransportJacobian(
    const ActsMatrix<7, 8>& directionToAnglesJacobian,
    const ActsMatrix<8, 7>& anglesToDirectionJacobian,
    const FreeMatrix& freeTransportJacobian);

}  // namespace detail

}  // namespace Acts