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File indexing completed on 2026-07-16 08:07:29
0001 // This file is part of the ACTS project. 0002 // 0003 // Copyright (C) 2016 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 https://mozilla.org/MPL/2.0/. 0008 0009 #pragma once 0010 0011 #include "Acts/Geometry/CylinderVolumeBounds.hpp" 0012 #include "Acts/Geometry/PortalShell.hpp" 0013 #include "Acts/Utilities/AxisDefinitions.hpp" 0014 #include "Acts/Utilities/Logger.hpp" 0015 0016 #include <array> 0017 #include <memory> 0018 0019 namespace Acts { 0020 0021 /// @class CylinderPortalShell 0022 /// Base class for cylinder shaped portal shells, e.g. shells for cylinder 0023 /// volumes 0024 class CylinderPortalShell : public PortalShellBase { 0025 public: 0026 /// Type alias for cylinder volume bounds face enumeration 0027 using Face = CylinderVolumeBounds::Face; 0028 0029 using enum CylinderVolumeBounds::Face; 0030 0031 /// Retrieve a shared_ptr for the portal associated to the given face. Can be 0032 /// nullptr if unset. 0033 /// @param face The face to retrieve the portal for 0034 /// @return The portal associated to the face 0035 virtual std::shared_ptr<Portal> portal(Face face) = 0; 0036 0037 /// Set the portal associated to the given face. 0038 /// @param portal The portal to set 0039 /// @param face The face to set the portal 0040 virtual void setPortal(std::shared_ptr<Portal> portal, Face face) = 0; 0041 0042 /// @copydoc PortalShellBase::fill 0043 void fill(TrackingVolume& volume) override; 0044 }; 0045 0046 /// Output stream operator for the CylinderPortalShell::Face enum 0047 /// @param os The output stream 0048 /// @param face The face to output 0049 /// @return The output stream 0050 std::ostream& operator<<(std::ostream& os, CylinderPortalShell::Face face); 0051 0052 /// @class SingleCylinderPortalShell 0053 /// This class describes a cylinder shell containing a single volume. The 0054 /// available faces depend on the configuration of the cylinder volume bounds. 0055 /// If a phi sector is configured, the shell will have corresponding portal 0056 /// slots. If the inner radius is non-zero, the shell will have an inner 0057 /// cylinder portal slot. 0058 class SingleCylinderPortalShell : public CylinderPortalShell { 0059 public: 0060 /// Type alias for base cylinder portal shell class 0061 using Base = CylinderPortalShell; 0062 0063 /// Construct a single cylinder portal shell for the given volume 0064 /// @param volume The volume to create the shell for 0065 explicit SingleCylinderPortalShell(TrackingVolume& volume); 0066 0067 /// @copydoc PortalShellBase::size 0068 std::size_t size() const final; 0069 0070 /// @copydoc CylinderPortalShell::portal 0071 std::shared_ptr<Portal> portal(Face face) final; 0072 0073 /// @copydoc CylinderPortalShell::setPortal 0074 void setPortal(std::shared_ptr<Portal> portal, Face face) final; 0075 0076 /// @copydoc PortalShellBase::applyToVolume 0077 void applyToVolume() override; 0078 0079 /// @copydoc PortalShellBase::isValid 0080 bool isValid() const override; 0081 0082 /// @copydoc PortalShellBase::label 0083 std::string label() const override; 0084 0085 private: 0086 std::array<std::shared_ptr<Portal>, 6> m_portals{}; 0087 0088 TrackingVolume* m_volume; 0089 }; 0090 0091 /// @class CylinderStackPortalShell 0092 /// This class describes a cylinder shell containing multiple volumes. The 0093 /// available faces depend on the configuration of the cylinder volume bounds. 0094 /// @note The stack shell currently does not support phi sectors 0095 /// The stack can be oriented along the (local) z or r direction, which drives 0096 /// the stacking. Depending on the direction, portals on the shells of children 0097 /// are merged or fused. Subsequently, portal access respects shared portals 0098 /// between shells. Below is an illustration of a stack in the r direction: 0099 /// ``` 0100 /// Fused +-----------------+ 0101 /// portals ----+ | | 0102 /// | | v OuterCylinder 0103 /// | +------+------+ 0104 /// | | | | 0105 /// | | | |<--+ 0106 /// +--+---+ v | | 0107 /// +---+---------+ | 0108 /// | | | | Shared portal 0109 /// | | |<--+--- (grid) 0110 /// | v | | PositiveDisc 0111 /// +-------------+ | 0112 /// r ^ | | | 0113 /// | | |<--+ 0114 /// | | | 0115 /// | +-------------+ InnerCylinder 0116 /// +-----> ^ (if rMin>0) 0117 /// z | | 0118 /// +-----------------+ 0119 /// ``` 0120 /// @note The shells must be ordered in the given direction 0121 /// Depending on the stack direction, the portal lookup will return different 0122 /// portals. In the illustration above, the `PositiveDisc` portal is shared 0123 /// among all shells, while the `OuterCylinder` and `InnerCylinder` portals are 0124 /// looked up from the innermost and outermost shell in the r direction. 0125 class CylinderStackPortalShell : public CylinderPortalShell { 0126 public: 0127 /// Type alias for single cylinder portal shell type used in stacks 0128 using SingleShell = SingleCylinderPortalShell; 0129 0130 /// Construct the portal shell stack from the given shells 0131 /// @param gctx The geometry context 0132 /// @param shells The shells to stack 0133 /// @note The shells must be ordered in the given direction 0134 /// @param direction The stacking direction 0135 /// @param logger A logging instance for debugging 0136 CylinderStackPortalShell(const GeometryContext& gctx, 0137 std::vector<CylinderPortalShell*> shells, 0138 AxisDirection direction, 0139 const Logger& logger = getDummyLogger()); 0140 0141 /// @copydoc PortalShellBase::size 0142 std::size_t size() const final; 0143 0144 /// @copydoc CylinderPortalShell::portal 0145 std::shared_ptr<Portal> portal(Face face) final; 0146 0147 /// @copydoc CylinderPortalShell::setPortal 0148 void setPortal(std::shared_ptr<Portal> portal, Face face) final; 0149 0150 void applyToVolume() override { 0151 // No-op, because it's a composite portal shell 0152 } 0153 0154 /// @copydoc PortalShellBase::isValid 0155 bool isValid() const override; 0156 0157 /// @copydoc PortalShellBase::label 0158 std::string label() const override; 0159 0160 private: 0161 AxisDirection m_direction; 0162 std::vector<CylinderPortalShell*> m_shells; 0163 bool m_hasInnerCylinder{true}; 0164 }; 0165 0166 } // namespace Acts
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