Acts/Navigation/NavigationStateFillers.hpp

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/Navigation/NavigationState.hpp"
0012 #include "Acts/Utilities/Intersection.hpp"
0013
0014 #include <vector>
0015
0016 namespace Acts {
0017
0018 class Surface;
0019
0020 namespace Experimental {
0021
0022 class Portal;
0023 class Detector;
0024 class DetectorVolume;
0025
0026 /// Filler of the current volume
0027 struct DetectorVolumeFiller {
0028   /// Helper struct that allows to fill a volume into the
0029   /// navigation state, it allows to use common navigation
0030   /// structs for volume, portal, surfaces
0031   ///
0032   /// @param nState the navigation state
0033   /// @param volume the volume that is filled
0034   inline static void fill(NavigationState& nState,
0035                           const DetectorVolume* volume) {
0036     nState.currentVolume = volume;
0037   }
0038 };
0039
0040 /// Fillers and attachers for surfaces to act on the navigation state
0041 struct SurfacesFiller {
0042   /// Helper struct that allows to fill surfaces into the candidate vector it
0043   /// allows to use common navigation structs for volume, portal, surfaces
0044   ///
0045   /// @param nState the navigation state
0046   /// @param surfaces the surfaces that are filled in
0047   inline static void fill(NavigationState& nState,
0048                           const std::vector<const Surface*>& surfaces) {
0049     std::ranges::for_each(surfaces, [&](const Surface* s) {
0050       nState.surfaceCandidates.emplace_back(Intersection3D::Invalid(), 0, *s,
0051                                             nState.surfaceBoundaryTolerance);
0052     });
0053   }
0054 };
0055
0056 /// Fillers and attachers for portals to act on the navigation state
0057 struct PortalsFiller {
0058   /// Helper struct that allows to fill surfaces into the candidate vector it
0059   /// allows to use common navigation structs for volume, portal, surfaces
0060   ///
0061   /// @param nState the navigation state
0062   /// @param portals the portals that are filled in
0063   inline static void fill(NavigationState& nState,
0064                           const std::vector<const Portal*>& portals) {
0065     std::ranges::for_each(portals, [&](const Portal* p) {
0066       nState.surfaceCandidates.emplace_back(Intersection3D::Invalid(), 0, *p,
0067                                             BoundaryTolerance::None());
0068     });
0069   }
0070 };
0071
0072 }  // namespace Experimental
0073 }  // namespace Acts