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DD4hepLayerBuilder.hpp
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1 // This file is part of the Acts project.
2 //
3 // Copyright (C) 2017-2018 CERN for the benefit of the Acts project
4 //
5 // This Source Code Form is subject to the terms of the Mozilla Public
6 // License, v. 2.0. If a copy of the MPL was not distributed with this
7 // file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 
9 #pragma once
10 
17 #include "Acts/Utilities/Units.hpp"
18 
19 class TGeoMatrix;
20 
21 namespace dd4hep {
22 class DetElement;
23 }
24 
25 namespace Acts {
26 
33 
35  public:
38  struct Config {
40  std::string configurationName = "undefined";
42  std::shared_ptr<const LayerCreator> layerCreator = nullptr;
56  std::vector<dd4hep::DetElement> negativeLayers;
59  std::vector<dd4hep::DetElement> centralLayers;
64  std::vector<dd4hep::DetElement> positiveLayers;
76  };
77 
82  std::unique_ptr<const Logger> logger);
84  ~DD4hepLayerBuilder() override;
85 
91  const LayerVector negativeLayers(const GeometryContext& gctx) const final;
92 
98  const LayerVector centralLayers(const GeometryContext& gctx) const final;
99 
105  const LayerVector positiveLayers(const GeometryContext& gctx) const final;
106 
109  const std::string& identification() const final;
110 
113  void setConfiguration(const Config& config);
114 
116  Config getConfiguration() const;
117 
119  void setLogger(std::unique_ptr<const Logger> logger);
120 
121  private:
124 
126  std::unique_ptr<const Logger> m_logger;
127 
129  const Logger& logger() const { return *m_logger; }
130 
137  const GeometryContext& gctx,
138  const std::vector<dd4hep::DetElement>& dendcapLayers,
139  const std::string& side) const;
140 
147  void resolveSensitive(
148  const dd4hep::DetElement& detElement,
149  std::vector<std::shared_ptr<const Acts::Surface>>& surfaces) const;
150 
157  std::shared_ptr<const Acts::Surface> createSensitiveSurface(
158  const dd4hep::DetElement& detElement, bool isDisc = false) const;
159 
160  // Private helper function to convert the TGeo transformation matrix into
161  // an Acts transformation matrix
162  // @param tGeoTrans TGeo transformation matrix which should be converted
163  std::shared_ptr<const Acts::Transform3D> convertTransform(
164  const TGeoMatrix* tGeoTrans) const;
165 };
166 
167 inline const std::string& DD4hepLayerBuilder::identification() const {
168  return m_cfg.configurationName;
169 }
170 
172  return m_cfg;
173 }
174 
175 } // namespace Acts