EIC code displayed by LXR |
|
|
|
|||
File indexing completed on 2025-09-17 08:59:59
0001 //------------------------------- -*- C++ -*- -------------------------------// 0002 // Copyright Celeritas contributors: see top-level COPYRIGHT file for details 0003 // SPDX-License-Identifier: (Apache-2.0 OR MIT) 0004 //---------------------------------------------------------------------------// 0005 //! \file geocel/GeantGdmlLoader.hh 0006 //---------------------------------------------------------------------------// 0007 #pragma once 0008 0009 #include <map> 0010 #include <string> 0011 0012 #include "corecel/Config.hh" 0013 0014 #include "corecel/Assert.hh" 0015 0016 class G4LogicalVolume; 0017 class G4VPhysicalVolume; 0018 0019 namespace celeritas 0020 { 0021 //---------------------------------------------------------------------------// 0022 /*! 0023 * Load a GDML file into memory. 0024 * 0025 * The pointer treatment gives three options: 0026 * - \c ignore leaves names as they are imported by Geant4's GDML reader, which 0027 * strips them from material/region names but leaves solid/logical/physical 0028 * pointers in place. 0029 * - \c truncate lets the Geant4 GDML remove the pointers, which cuts 0030 * everything after \c 0x including suffixes like \c _refl added during 0031 * volume construction. 0032 * - \c remove uses a regular expression to remove pointers from volume names. 0033 * 0034 * The \c detectors option reads \c auxiliary tags in the \c structure that 0035 * have \c auxtype=SensDet and returns a multimap of strings to volume 0036 * pointers. 0037 */ 0038 class GeantGdmlLoader 0039 { 0040 public: 0041 //!@{ 0042 //! \name Type aliases 0043 using MapDetectors = std::multimap<std::string, G4LogicalVolume*>; 0044 //!@} 0045 0046 //! How to handle pointers in volume names 0047 enum class PointerTreatment 0048 { 0049 ignore, //!< Pointers will remain in the volume name 0050 truncate, //!< All text after '0x' is removed 0051 remove, //!< Only pointers are carefully removed 0052 }; 0053 0054 struct Options 0055 { 0056 //! Strip pointer extensions from solids/volumes 0057 PointerTreatment pointers{PointerTreatment::remove}; 0058 //! Load sensitive detector map 0059 bool detectors{false}; 0060 }; 0061 0062 struct Result 0063 { 0064 //! Self-owning pointer to the loaded top-level volume 0065 G4VPhysicalVolume* world{nullptr}; 0066 //! If requested, load a sensitive detector map 0067 MapDetectors detectors; 0068 }; 0069 0070 public: 0071 //! Construct with options 0072 explicit GeantGdmlLoader(Options const& opts) : opts_{opts} {} 0073 0074 //! Construct with defaults 0075 GeantGdmlLoader() : GeantGdmlLoader{Options{}} {} 0076 0077 // Load a GDML file 0078 Result operator()(std::string const& filename) const; 0079 0080 private: 0081 Options opts_; 0082 }; 0083 0084 //---------------------------------------------------------------------------// 0085 // Load a Geant4 geometry, excising pointers 0086 G4VPhysicalVolume* load_gdml(std::string const& filename); 0087 0088 // Save a Geant4 geometry to a file 0089 void save_gdml(G4VPhysicalVolume const* world, std::string const& out_filename); 0090 0091 //---------------------------------------------------------------------------// 0092 // INLINE DEFINITIONS 0093 //---------------------------------------------------------------------------// 0094 /*! 0095 * Load a Geant4 geometry, excising pointers. 0096 * 0097 * This provides a good default for using GDML in Celeritas. 0098 * 0099 * \return Geant4-owned world volume 0100 */ 0101 inline G4VPhysicalVolume* load_gdml(std::string const& filename) 0102 { 0103 return GeantGdmlLoader()(filename).world; 0104 } 0105 0106 //---------------------------------------------------------------------------// 0107 #if !CELERITAS_USE_GEANT4 0108 0109 inline auto GeantGdmlLoader::operator()(std::string const&) const -> Result 0110 { 0111 CELER_DISCARD(opts_); 0112 CELER_NOT_CONFIGURED("Geant4"); 0113 } 0114 0115 inline void save_gdml(G4VPhysicalVolume const*, std::string const&) 0116 { 0117 CELER_NOT_CONFIGURED("Geant4"); 0118 } 0119 0120 #endif 0121 0122 //---------------------------------------------------------------------------// 0123 } // namespace celeritas
| [ Source navigation ] | [ Diff markup ] | [ Identifier search ] | [ general search ] |
|
This page was automatically generated by the 2.3.7 LXR engine. The LXR team |
|