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Warning, file /include/Acts/Detector/LayerStructureBuilder.hpp was not indexed or was modified since last indexation (in which case cross-reference links may be missing, inaccurate or erroneous).
0001 // This file is part of the Acts project. 0002 // 0003 // Copyright (C) 2023 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 http://mozilla.org/MPL/2.0/. 0008 0009 #pragma once 0010 0011 #include "Acts/Definitions/Algebra.hpp" 0012 #include "Acts/Detector/DetectorComponents.hpp" 0013 #include "Acts/Detector/ProtoBinning.hpp" 0014 #include "Acts/Detector/ProtoSupport.hpp" 0015 #include "Acts/Detector/interface/IInternalStructureBuilder.hpp" 0016 #include "Acts/Detector/interface/ISurfacesProvider.hpp" 0017 #include "Acts/Geometry/GeometryContext.hpp" 0018 #include "Acts/Surfaces/Surface.hpp" 0019 #include "Acts/Utilities/BinningData.hpp" 0020 #include "Acts/Utilities/BinningType.hpp" 0021 #include "Acts/Utilities/Logger.hpp" 0022 0023 #include <array> 0024 #include <cstddef> 0025 #include <functional> 0026 #include <memory> 0027 #include <optional> 0028 #include <string> 0029 #include <vector> 0030 0031 namespace Acts::Experimental { 0032 0033 /// @brief This is a builder of layer structures to be contained 0034 /// within a DetectorVolume, it extends the IInternalStructureBuilder 0035 /// interface and provides the internal structure components of 0036 /// DetectorVolume objects to be constructed. 0037 /// 0038 /// It uses the IndexedSurfaceGrid to bin the internal surfaces, 0039 /// and allows for additional support surfaces that are added to the 0040 /// structure and indexing mechanism. Those support structures can 0041 /// also be approximated by planar surfaces, in order to facilitate 0042 /// vectorization of surface intersection calls. 0043 /// 0044 /// The binning can be chosen with a so called `expansion`, a number 0045 /// which indicates the configured expanded bin window in which the 0046 /// surfaces are going to be filled, the details to this strategy 0047 /// can be found in the IndexedGridFiller and IndexedSurfacesGenerator 0048 /// classes. 0049 /// 0050 /// No sub volumes are added to this structure builders, hence, 0051 /// the DetectorVolumeFinder navigation delegate uses the "NoopFinder" 0052 /// breakpoint to indicate the bottom of the volume hierarchy. 0053 /// 0054 class LayerStructureBuilder : public IInternalStructureBuilder { 0055 public: 0056 /// @brief A holder struct for surfaces 0057 class SurfacesHolder final : public ISurfacesProvider { 0058 public: 0059 /// Constructor with predefined surfaces 0060 /// @param isurfaces is the vector of surfaces 0061 SurfacesHolder(std::vector<std::shared_ptr<Surface>> isurfaces) 0062 : m_surfaces(std::move(isurfaces)) {} 0063 0064 /// Return the surfaces from the holder 0065 /// @param gctx is the geometry context 0066 std::vector<std::shared_ptr<Surface>> surfaces( 0067 [[maybe_unused]] const GeometryContext& gctx) const final { 0068 return m_surfaces; 0069 } 0070 0071 private: 0072 std::vector<std::shared_ptr<Surface>> m_surfaces = {}; 0073 }; 0074 0075 /// @brief Configuration struct for the LayerStructureBuilder 0076 /// 0077 /// It contain: 0078 /// - a source of the surfaces to be built 0079 /// - a definition of surface binning on this layer 0080 /// - a definition of supports to be built 0081 struct Config { 0082 /// Connection point for a function to provide surfaces 0083 std::shared_ptr<ISurfacesProvider> surfacesProvider = nullptr; 0084 /// Definition of Supports 0085 std::vector<ProtoSupport> supports = {}; 0086 /// Definition of Binnings 0087 std::vector<ProtoBinning> binnings = {}; 0088 /// Optional extent (if already parsed), will trigger binning autorange 0089 /// check 0090 std::optional<Extent> extent = std::nullopt; 0091 /// Minimum number of surfaces to build an internal structure 0092 /// - otherwise the tryAll options is used 0093 unsigned int nMinimalSurfaces = 4u; 0094 /// Polyhedron approximations 0095 unsigned int nSegments = 1u; 0096 /// Extra information, mainly for screen output 0097 std::string auxiliary = ""; 0098 }; 0099 0100 /// Constructor 0101 /// 0102 /// @param cfg is the configuration struct 0103 /// @param logger logging instance for screen output 0104 LayerStructureBuilder(const Config& cfg, 0105 std::unique_ptr<const Logger> logger = getDefaultLogger( 0106 "LayerStructureBuilder", Logging::INFO)); 0107 0108 /// The interface definition for internal structure creation 0109 /// 0110 /// @param gctx the geometry context at the creation of the internal structure 0111 /// 0112 /// This will take the surfaces from the surfaces provider and use the binning 0113 /// description to create an internal indexed surface structure. 0114 /// 0115 /// @note if the configuration provides an extent, the range of the binning 0116 /// will be checked againstit and adapted if necessary 0117 /// 0118 /// @return a consistent set of detector volume internals 0119 InternalStructure construct(const GeometryContext& gctx) const final; 0120 0121 private: 0122 /// Configuration object 0123 Config m_cfg; 0124 0125 /// Private access method to the logger 0126 const Logger& logger() const { return *m_logger; } 0127 0128 /// Logging instance 0129 std::unique_ptr<const Logger> m_logger; 0130 }; 0131 0132 } // namespace Acts::Experimental
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