Geometry.h

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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
 
#ifndef O2_TRD_GEOMETRY_H
#define O2_TRD_GEOMETRY_H
 
#include "TRDBase/GeometryBase.h"
#include "DetectorsCommonDataFormats/DetMatrixCache.h"
#include "DetectorsCommonDataFormats/DetID.h"
 
#include <string>
#include <vector>
#include <memory>
 
namespace o2
{
namespace trd
{
 
class Geometry : public GeometryBase, public o2::detectors::DetMatrixCacheIndirect
{
 public:
  ~Geometry() override = default;
 
  static Geometry* instance()
  {
    static Geometry mGeom;
    return &mGeom;
  }
 
  void createGeometry(std::vector<int> const& idtmed);
  void addAlignableVolumes() const;
  bool createClusterMatrixArray();
  void createPadPlaneArray();
 
  bool rotateBack(int det, const float* const loc, float* glb) const;
  bool chamberInGeometry(int det) const;
  std::vector<std::string> const& getSensitiveTRDVolumes() const { return mSensitiveVolumeNames; }
 
 protected:
  void fillMatrixCache(int mask) override;
 
 private:
  static int shapeClass(int layer, int stack) { return layer + constants::NLAYER * (stack == 2 ? 1 : 0); }
 
  void createVolumes(std::vector<int> const& idtmed);
  void assembleChamber(int ilayer, int istack);
  void createFrame(std::vector<int> const& idtmed);
  void createServices(std::vector<int> const& idtmed);
  void createPadPlane(int ilayer, int istack);
 
  std::vector<std::string> mSensitiveVolumeNames; 
  static const o2::detectors::DetID sDetID;
 
  // helper function to create volumes and registering them automatically
  void createVolume(const char* name, const char* shape, int nmed, float* upar, int np);
 
  Geometry();
 
  ClassDefOverride(Geometry, 2); //  TRD geometry class
};
} // end namespace trd
} // end namespace o2
#endif