DBM_Det.cxx

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
 
#include "DBM_Det.h"
#include "DBM_Telescope.h"
#include "DBM_Services.h"
#include "GeoModelKernel/GeoTransform.h"
#include "GeoModelKernel/GeoNameTag.h"
#include "GeoModelKernel/GeoIdentifierTag.h"
#include "GeoModelKernel/GeoBox.h"
#include "GeoModelKernel/GeoTrd.h"
#include "GeoModelKernel/GeoTube.h"
#include "GaudiKernel/SystemOfUnits.h"
#include "PixelReadoutGeometry/PixelDetectorManager.h"
 
#include <iostream>
#include <utility>
 
DBM_Det::DBM_Det(InDetDD::PixelDetectorManager* ddmgr
                 , PixelGeometryManager* mgr
         , GeoModelIO::ReadGeoModel* sqliteReader
                 , std::shared_ptr<std::map<std::string, GeoFullPhysVol*>> mapFPV
                 , std::shared_ptr<std::map<std::string, GeoAlignableTransform*>> mapAX)
  : GeoVPixelFactory(ddmgr,mgr,sqliteReader, std::move(mapFPV), std::move(mapAX))
{
  double Trans_Y = 0.;
  
  // Radius to beamline
  // Hardcoded, so if change then change in DBM_module too
  double trans_rad = 46.678*Gaudi::Units::mm + (m_gmt_mgr->DBMTelescopeY()) / 2.; // 10-Gaudi::Units::degree version
 
  //                 TRANS_X                        TRANS_Y                        TRANS_Z                          ROT_X                       ROT_Y                      ROT_Z        
  m_module[0].push_back(trans_rad);   m_module[0].push_back(0);         m_module[0].push_back(Trans_Y);    m_module[0].push_back(0);     m_module[0].push_back(0);    m_module[0].push_back(270);  
  m_module[1].push_back(0);        m_module[1].push_back(trans_rad);    m_module[1].push_back(Trans_Y);    m_module[1].push_back(0);     m_module[1].push_back(0);    m_module[1].push_back(0);   
  m_module[2].push_back(-trans_rad); m_module[2].push_back(0);        m_module[2].push_back(Trans_Y);   m_module[2].push_back(0);    m_module[2].push_back(0);   m_module[2].push_back(90); 
  m_module[3].push_back(0);      m_module[3].push_back(-trans_rad); m_module[3].push_back(Trans_Y);  m_module[3].push_back(0);   m_module[3].push_back(0);  m_module[3].push_back(180); 
 
}
 
GeoVPhysVol* DBM_Det::Build()
{
  GeoFullPhysVol* Phys{nullptr};
  if(!m_sqliteReader) {
    double safety = 0.001;
 
    //create a cylinder 8mm smaller than the BPSS outer radius to place the 4 DBM telescopes
    double rmin = 45.*Gaudi::Units::mm;//41.0*Gaudi::Units::mm;
    double rmax = 150.*Gaudi::Units::mm; //244.*Gaudi::Units::mm;
    double halflength = m_gmt_mgr->DBMTelescopeZ()/2.;//200.*Gaudi::Units::mm
    GeoTube * Shape = new GeoTube(rmin,rmax,halflength);
    const GeoMaterial* air = m_mat_mgr->getMaterial("std::Air");
    const GeoLogVol* Log = new GeoLogVol("OutsideDBM",Shape,air);
    Phys = new GeoFullPhysVol(Log);
    
    // add PP0 board
    DBM_PP0 pp0Board (m_DDmgr, m_gmt_mgr, m_sqliteReader, m_mapFPV, m_mapAX);
    GeoVPhysVol* pp0BoardPhys = pp0Board.Build();
    GeoTrf::Translate3D pp0Pos(0., 0., -halflength + m_gmt_mgr->DBMPP0Thick()/2. + safety);
    GeoTransform* pp0xform = new GeoTransform(pp0Pos);
    GeoNameTag* pp0tag = new GeoNameTag("DBM_PP0"); 
    Phys->add(pp0tag);
    Phys->add(pp0xform);
    Phys->add(pp0BoardPhys);          
  }
 
  //we are now adding four DBM telescopes
  DBM_Telescope dbm (m_DDmgr, m_gmt_mgr, m_sqliteReader, m_mapFPV, m_mapAX);
  for(int i=0; i<4; i++)
    {
      m_gmt_mgr->SetEta(0);
      m_gmt_mgr->SetPhi(i);
      // Fixing swaping of module 0 and 2 on side C (-4)
      // sinceDBM side C is 180deg rotation around global Y
      if ((m_gmt_mgr->GetSide() < 0) && (i == 0)) m_gmt_mgr->SetPhi(2);
      else if ((m_gmt_mgr->GetSide() < 0) && (i == 2)) m_gmt_mgr->SetPhi(0);
 
      //setting transformation
      if(m_sqliteReader) {
    dbm.Build();
      }
      else {
    GeoTrf::Transform3D rm  = GeoTrf::RotateZ3D(m_module[i].at(5)*Gaudi::Units::deg)
      * GeoTrf::RotateY3D(m_module[i].at(4)*Gaudi::Units::deg)
      * GeoTrf::RotateX3D(m_module[i].at(3)*Gaudi::Units::deg);
    GeoTrf::Translation3D pos(m_module[i].at(0), m_module[i].at(1), m_module[i].at(2));
    GeoTransform* xform = new GeoTransform(GeoTrf::Transform3D(pos*rm));
    
    GeoNameTag* tag = new GeoNameTag("DBM Module"); 
    GeoVPhysVol* dbmModPhys = dbm.Build();
    Phys->add(tag);
    Phys->add(new GeoIdentifierTag(i));
    Phys->add(xform);
    Phys->add(dbmModPhys);        
      }
    }
 
  // Set numerology for the full DBM system
  if(m_DDmgr->numerology().numEndcapsDBM()==0) {
    int numDisk=3;
    int numPhiModules=4;    
    m_DDmgr->numerology().setNumDisksDBM(numDisk);
    m_DDmgr->numerology().setNumBarrelDBM(0);
    m_DDmgr->numerology().addEndcapDBM(4);
    m_DDmgr->numerology().addEndcapDBM(-4);
    for(int disk=0; disk<numDisk; disk++){
      m_DDmgr->numerology().setNumPhiModulesForDiskRingDBM(disk, 0, numPhiModules);
    }
  }
 
  return Phys;
}