DescriptorInnerBarrel.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 ALICEO2_ITS_DESCRIPTORINNERBARREL_H
#define ALICEO2_ITS_DESCRIPTORINNERBARREL_H
 
#include <string>
#include <vector>
#include <TObject.h>
#include <TGeoTube.h>
#include <TMath.h>
 
namespace o2
{
namespace its
{
class DescriptorInnerBarrel : public TObject
{
 public:
  DescriptorInnerBarrel();
  DescriptorInnerBarrel(int nlayers);
 
  DescriptorInnerBarrel(const DescriptorInnerBarrel& src) = delete;
  DescriptorInnerBarrel& operator=(const DescriptorInnerBarrel& geom) = delete;
 
  double radii2Turbo(double rMin, double rMid, double rMax, double sensW) const
  {
    // compute turbo angle from radii and sensor width
    return TMath::ASin((rMax * rMax - rMin * rMin) / (2 * rMid * sensW)) * TMath::RadToDeg();
  }
 
  int getNumberOfLayers() const { return mNumLayers; }
  double getSensorThickness() const { return mSensorLayerThickness; }
  void getConfigurationWrapperVolume(double& minradius, double& maxradius, double& zspan) const;
  void setConfigurationWrapperVolume(double minradius, double maxradius, double zspan);
  TGeoTube* defineWrapperVolume() const;
 
 protected:
  int mNumLayers{3};
 
  // wrapper volume properties
  double mWrapperMinRadius{2.1};
  double mWrapperMaxRadius{16.4};
  double mWrapperZSpan{70.};
 
  // layer properties
  double mSensorLayerThickness{};           
  std::vector<double> mLayerRadii{};        
  std::vector<double> mDetectorThickness{}; 
  std::vector<int> mChipTypeID{};           
 
  std::vector<int> mBuildLevel; 
 
  ClassDef(DescriptorInnerBarrel, 1); 
};
} // namespace its
} // namespace o2
 
#endif