File indexing completed on 2024-09-27 07:03:00
0001
0002
0003
0004 #include <Acts/Geometry/DetectorElementBase.hpp>
0005 #include <Acts/Geometry/GeometryIdentifier.hpp>
0006 #include <Acts/Geometry/TrackingGeometry.hpp>
0007 #include <Acts/Geometry/TrackingVolume.hpp>
0008 #include <Acts/MagneticField/MagneticFieldContext.hpp>
0009 #include <Acts/Material/IMaterialDecorator.hpp>
0010 #include <Acts/Plugins/DD4hep/ConvertDD4hepDetector.hpp>
0011 #include <Acts/Plugins/DD4hep/DD4hepDetectorElement.hpp>
0012 #include <Acts/Plugins/Json/JsonMaterialDecorator.hpp>
0013 #include <Acts/Plugins/Json/MaterialMapJsonConverter.hpp>
0014 #include <Acts/Surfaces/Surface.hpp>
0015 #include <Acts/Utilities/BinningType.hpp>
0016 #include <Acts/Utilities/Result.hpp>
0017 #include <Acts/Visualization/GeometryView3D.hpp>
0018 #include <Acts/Visualization/ObjVisualization3D.hpp>
0019 #include <Acts/Visualization/PlyVisualization3D.hpp>
0020 #include <DD4hep/DetElement.h>
0021 #include <DD4hep/VolumeManager.h>
0022 #include <JANA/JException.h>
0023 #include <TGeoManager.h>
0024 #include <fmt/core.h>
0025 #include <fmt/ostream.h>
0026 #include <spdlog/common.h>
0027 #include <exception>
0028 #include <initializer_list>
0029 #include <type_traits>
0030
0031 #include "ActsGeometryProvider.h"
0032 #include "extensions/spdlog/SpdlogToActs.h"
0033
0034
0035 #if FMT_VERSION >= 90000
0036 #include <Eigen/Core>
0037
0038 template <typename T>
0039 struct fmt::formatter<
0040 T,
0041 std::enable_if_t<
0042 std::is_base_of_v<Eigen::MatrixBase<T>, T>,
0043 char
0044 >
0045 > : fmt::ostream_formatter {};
0046 #endif
0047
0048 void ActsGeometryProvider::initialize(const dd4hep::Detector* dd4hep_geo,
0049 std::string material_file,
0050 std::shared_ptr<spdlog::logger> log,
0051 std::shared_ptr<spdlog::logger> init_log) {
0052
0053 m_log = log;
0054 m_init_log = init_log;
0055
0056 m_init_log->debug("ActsGeometryProvider initializing...");
0057
0058 m_init_log->debug("Set TGeoManager and acts_init_log_level log levels");
0059
0060 if (m_log->level() >= (int) spdlog::level::info) {
0061 TGeoManager::SetVerboseLevel(0);
0062 }
0063
0064
0065 auto acts_init_log_level = eicrecon::SpdlogToActsLevel(m_init_log->level());
0066
0067 m_dd4hepDetector = dd4hep_geo;
0068
0069
0070 std::shared_ptr<const Acts::IMaterialDecorator> materialDeco{nullptr};
0071 if (!material_file.empty()) {
0072 m_init_log->info("loading materials map from file: '{}'", material_file);
0073
0074 Acts::MaterialMapJsonConverter::Config jsonGeoConvConfig;
0075
0076 materialDeco = std::make_shared<const Acts::JsonMaterialDecorator>(jsonGeoConvConfig, material_file, acts_init_log_level);
0077 }
0078
0079
0080 class ConvertDD4hepDetectorGeometryIdentifierHook: public Acts::GeometryIdentifierHook {
0081 Acts::GeometryIdentifier decorateIdentifier(
0082 Acts::GeometryIdentifier identifier, const Acts::Surface& surface) const {
0083 const auto* dd4hep_det_element =
0084 dynamic_cast<const Acts::DD4hepDetectorElement*>(surface.associatedDetectorElement());
0085 if (dd4hep_det_element == nullptr) {
0086 return identifier;
0087 }
0088
0089 return identifier.setExtra(0xff & dd4hep_det_element->identifier());
0090 };
0091 };
0092 auto geometryIdHook = std::make_shared<ConvertDD4hepDetectorGeometryIdentifierHook>();
0093
0094
0095 m_init_log->info("Converting DD4Hep geometry to ACTS...");
0096 auto logger = eicrecon::getSpdlogLogger("CONV", m_log);
0097 Acts::BinningType bTypePhi = Acts::equidistant;
0098 Acts::BinningType bTypeR = Acts::equidistant;
0099 Acts::BinningType bTypeZ = Acts::equidistant;
0100 double layerEnvelopeR = Acts::UnitConstants::mm;
0101 double layerEnvelopeZ = Acts::UnitConstants::mm;
0102 double defaultLayerThickness = Acts::UnitConstants::fm;
0103 using Acts::sortDetElementsByID;
0104
0105 try {
0106 m_trackingGeo = Acts::convertDD4hepDetector(
0107 m_dd4hepDetector->world(),
0108 *logger,
0109 bTypePhi,
0110 bTypeR,
0111 bTypeZ,
0112 layerEnvelopeR,
0113 layerEnvelopeZ,
0114 defaultLayerThickness,
0115 sortDetElementsByID,
0116 m_trackingGeoCtx,
0117 materialDeco,
0118 geometryIdHook);
0119 }
0120 catch(std::exception &ex) {
0121 m_init_log->error("Error during DD4Hep -> ACTS geometry conversion: {}", ex.what());
0122 m_init_log->info ("Set parameter acts::InitLogLevel=trace to see conversion info and possibly identify failing geometry");
0123 throw JException(ex.what());
0124 }
0125
0126 m_init_log->info("DD4Hep geometry converted!");
0127
0128
0129 m_init_log->info("Checking surfaces...");
0130 if (m_trackingGeo) {
0131
0132 const Acts::TrackingVolume* world = m_trackingGeo->highestTrackingVolume();
0133 if (m_objWriteIt) {
0134 m_init_log->info("Writing obj files to {}...", m_outputDir);
0135 Acts::ObjVisualization3D objVis;
0136 Acts::GeometryView3D::drawTrackingVolume(
0137 objVis, *world, m_trackingGeoCtx,
0138 m_containerView, m_volumeView, m_passiveView, m_sensitiveView, m_gridView,
0139 m_objWriteIt, m_outputTag, m_outputDir
0140 );
0141 }
0142 if (m_plyWriteIt) {
0143 m_init_log->info("Writing ply files to {}...", m_outputDir);
0144 Acts::PlyVisualization3D plyVis;
0145 Acts::GeometryView3D::drawTrackingVolume(
0146 plyVis, *world, m_trackingGeoCtx,
0147 m_containerView, m_volumeView, m_passiveView, m_sensitiveView, m_gridView,
0148 m_plyWriteIt, m_outputTag, m_outputDir
0149 );
0150 }
0151
0152 m_init_log->debug("visiting all the surfaces ");
0153 m_trackingGeo->visitSurfaces([this](const Acts::Surface *surface) {
0154
0155 if (surface == nullptr) {
0156 m_init_log->info("no surface??? ");
0157 return;
0158 }
0159 const auto *det_element =
0160 dynamic_cast<const Acts::DD4hepDetectorElement *>(surface->associatedDetectorElement());
0161
0162 if (det_element == nullptr) {
0163 m_init_log->error("invalid det_element!!! det_element == nullptr ");
0164 return;
0165 }
0166
0167
0168 m_init_log->debug(" det_element->identifier() = {} ", det_element->identifier());
0169 auto volman = m_dd4hepDetector->volumeManager();
0170 auto *vol_ctx = volman.lookupContext(det_element->identifier());
0171 auto vol_id = vol_ctx->identifier;
0172
0173 if (m_init_log->level() <= spdlog::level::debug) {
0174 auto de = vol_ctx->element;
0175 m_init_log->debug(" de.path = {}", de.path());
0176 m_init_log->debug(" de.placementPath = {}", de.placementPath());
0177 }
0178
0179 this->m_surfaces.insert_or_assign(vol_id, surface);
0180 });
0181 }
0182 else {
0183 m_init_log->error("m_trackingGeo==null why am I still alive???");
0184 }
0185
0186
0187 m_init_log->info("Loading magnetic field...");
0188 m_magneticField = std::make_shared<const eicrecon::BField::DD4hepBField>(m_dd4hepDetector);
0189 Acts::MagneticFieldContext m_fieldctx{eicrecon::BField::BFieldVariant(m_magneticField)};
0190 auto bCache = m_magneticField->makeCache(m_fieldctx);
0191 for (int z: {0, 500, 1000, 1500, 2000, 3000, 4000}) {
0192 auto b = m_magneticField->getField({0.0, 0.0, double(z)}, bCache).value();
0193 m_init_log->debug("B(z = {:>5} [mm]) = {} T", z, b.transpose() / Acts::UnitConstants::T);
0194 }
0195
0196 m_init_log->info("ActsGeometryProvider initialization complete");
0197 }