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113 changes: 113 additions & 0 deletions
113
core/include/detray/geometry/detail/tracking_surface_kernels.hpp
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| /** Detray library, part of the ACTS project (R&D line) | ||
| * | ||
| * (c) 2023-2024 CERN for the benefit of the ACTS project | ||
| * | ||
| * Mozilla Public License Version 2.0 | ||
| */ | ||
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| #pragma once | ||
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| // Project include(s) | ||
| #include "detray/definitions/detail/qualifiers.hpp" | ||
| #include "detray/geometry/detail/surface_kernels.hpp" | ||
| #include "detray/propagator/detail/jacobian_engine.hpp" | ||
| #include "detray/tracks/detail/transform_track_parameters.hpp" | ||
| #include "detray/tracks/tracks.hpp" | ||
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| // System include(s) | ||
| #include <ostream> | ||
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| namespace detray::detail { | ||
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| /// Functors to be used in the @c tracking_surface class | ||
| template <typename algebra_t> | ||
| struct tracking_surface_kernels : public surface_kernels<algebra_t> { | ||
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| using vector3_type = dvector3D<algebra_t>; | ||
| using transform3_type = dtransform3D<algebra_t>; | ||
| using bound_param_vector_type = bound_parameters_vector<algebra_t>; | ||
| using free_param_vector_type = free_parameters_vector<algebra_t>; | ||
| using free_matrix_type = free_matrix<algebra_t>; | ||
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| /// A functor to get from a free to a bound vector | ||
| struct free_to_bound_vector { | ||
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| // Visitor to the detector mask store that is called on the mask | ||
| // collection that contains the mask (shape) type of the surface | ||
| template <typename mask_group_t, typename index_t> | ||
| DETRAY_HOST_DEVICE inline bound_param_vector_type operator()( | ||
| const mask_group_t& /*mask_group*/, const index_t& /*index*/, | ||
| const transform3_type& trf3, | ||
| const free_param_vector_type& free_vec) const { | ||
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| using frame_t = typename mask_group_t::value_type::local_frame; | ||
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| return detail::free_to_bound_vector<frame_t>(trf3, free_vec); | ||
| } | ||
| }; | ||
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| /// A functor to get from a bound to a free vector | ||
| struct bound_to_free_vector { | ||
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| template <typename mask_group_t, typename index_t> | ||
| DETRAY_HOST_DEVICE inline free_param_vector_type operator()( | ||
| const mask_group_t& mask_group, const index_t& index, | ||
| const transform3_type& trf3, | ||
| const bound_param_vector_type& bound_vec) const { | ||
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| return detail::bound_to_free_vector(trf3, mask_group[index], | ||
| bound_vec); | ||
| } | ||
| }; | ||
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| /// A functor to get the free-to-bound Jacobian | ||
| struct free_to_bound_jacobian { | ||
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| template <typename mask_group_t, typename index_t> | ||
| DETRAY_HOST_DEVICE inline auto operator()( | ||
| const mask_group_t& /*mask_group*/, const index_t& /*index*/, | ||
| const transform3_type& trf3, | ||
| const free_param_vector_type& free_vec) const { | ||
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| using frame_t = typename mask_group_t::value_type::local_frame; | ||
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| return detail::jacobian_engine<frame_t>::free_to_bound_jacobian( | ||
| trf3, free_vec); | ||
| } | ||
| }; | ||
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| /// A functor to get the bound-to-free Jacobian | ||
| struct bound_to_free_jacobian { | ||
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| template <typename mask_group_t, typename index_t> | ||
| DETRAY_HOST_DEVICE inline auto operator()( | ||
| const mask_group_t& mask_group, const index_t& index, | ||
| const transform3_type& trf3, | ||
| const bound_param_vector_type& bound_vec) const { | ||
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| using frame_t = typename mask_group_t::value_type::local_frame; | ||
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| return detail::jacobian_engine<frame_t>::bound_to_free_jacobian( | ||
| trf3, mask_group[index], bound_vec); | ||
| } | ||
| }; | ||
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| /// A functor to get the path correction | ||
| struct path_correction { | ||
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| template <typename mask_group_t, typename index_t, typename scalar_t> | ||
| DETRAY_HOST_DEVICE inline free_matrix_type operator()( | ||
| const mask_group_t& /*mask_group*/, const index_t& /*index*/, | ||
| const transform3_type& trf3, const vector3_type& pos, | ||
| const vector3_type& dir, const vector3_type& dtds, | ||
| const scalar_t dqopds) const { | ||
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| using frame_t = typename mask_group_t::value_type::local_frame; | ||
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| return detail::jacobian_engine<frame_t>::path_correction( | ||
| pos, dir, dtds, dqopds, trf3); | ||
| } | ||
| }; | ||
| }; | ||
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| } // namespace detray::detail |
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