Geant4Converter.cpp

//==========================================================================
//  AIDA Detector description implementation 
//--------------------------------------------------------------------------
// Copyright (C) Organisation europeenne pour la Recherche nucleaire (CERN)
// All rights reserved.
//
// For the licensing terms see $DD4hepINSTALL/LICENSE.
// For the list of contributors see $DD4hepINSTALL/doc/CREDITS.
//
// Author     : M.Frank
//
//==========================================================================

// Framework include files
#include "DD4hep/Detector.h"
#include "DD4hep/Plugins.h"
#include "DD4hep/Shapes.h"
#include "DD4hep/Volumes.h"
#include "DD4hep/Printout.h"
#include "DD4hep/DD4hepUnits.h"
#include "DD4hep/PropertyTable.h"
#include "DD4hep/detail/ShapesInterna.h"
#include "DD4hep/detail/ObjectsInterna.h"
#include "DD4hep/detail/DetectorInterna.h"

#include "DDG4/Geant4Field.h"
#include "DDG4/Geant4Converter.h"
#include "DDG4/Geant4UserLimits.h"
#include "DDG4/Geant4SensitiveDetector.h"
#include "Geant4ShapeConverter.h"

// ROOT includes
#include "TROOT.h"
#include "TColor.h"
#include "TGeoNode.h"

#include "TGeoMatrix.h"
#include "TGeoBoolNode.h"
#include "TGeoParaboloid.h"
#include "TGeoScaledShape.h"
#include "TGeoManager.h"
#include "TClass.h"
#include "TMath.h"

// Geant4 include files
#include "G4VisAttributes.hh"
#include "G4ProductionCuts.hh"
#include "G4VUserRegionInformation.hh"

#include "G4Box.hh"
#include "G4Tubs.hh"
#include "G4Ellipsoid.hh"
#include "G4UnionSolid.hh"
#include "G4ReflectedSolid.hh"
#include "G4EllipticalTube.hh"
#include "G4SubtractionSolid.hh"
#include "G4IntersectionSolid.hh"

#include "G4Element.hh"
#include "G4Region.hh"
#include "G4UserLimits.hh"
#include "G4LogicalVolume.hh"
#include "G4Material.hh"
#include "G4Element.hh"
#include "G4Isotope.hh"
#include "G4Transform3D.hh"
#include "G4ThreeVector.hh"
#include "G4PVPlacement.hh"
#include "G4ElectroMagneticField.hh"
#include "G4FieldManager.hh"
#include "G4ReflectionFactory.hh"
#include "G4OpticalSurface.hh"
#include "G4LogicalSkinSurface.hh"
#include "G4LogicalBorderSurface.hh"
#include "G4MaterialPropertiesTable.hh"
#if G4VERSION_NUMBER >= 1040
#include "G4MaterialPropertiesIndex.hh"
#endif
#include "CLHEP/Units/SystemOfUnits.h"

// C/C++ include files
#include <iostream>
#include <iomanip>
#include <sstream>

namespace units = dd4hep;
using namespace dd4hep::detail;
using namespace dd4hep::sim;
using namespace dd4hep;
using namespace std;

#include "DDG4/Geant4AssemblyVolume.h"
#include "DD4hep/DetectorTools.h"
#include "G4RotationMatrix.hh"
#include "G4AffineTransform.hh"
#include "G4LogicalVolume.hh"
#include "G4VPhysicalVolume.hh"
#include "G4ReflectionFactory.hh"

static const double CM_2_MM = (CLHEP::centimeter/dd4hep::centimeter);

void Geant4AssemblyVolume::imprint(Geant4GeometryInfo& info,
                                   const TGeoNode*   parent,
                                   Chain chain,
                                   Geant4AssemblyVolume* pAssembly,
                                   G4LogicalVolume*  pMotherLV,
                                   G4Transform3D&    transformation,
                                   G4int copyNumBase,
                                   G4bool surfCheck )
{
  static int level=0;
  TGeoVolume* vol = parent->GetVolume();
  unsigned int  numberOfDaughters = 
    (copyNumBase == 0) ? pMotherLV->GetNoDaughters() : copyNumBase;

  ++level;

  // We start from the first available index
  //
  numberOfDaughters++;
  ImprintsCountPlus();

  vector<G4AssemblyTriplet> triplets = pAssembly->fTriplets;
  //cout << " Assembly:" << detail::tools::placementPath(chain) << endl;

  for( unsigned int i = 0; i < triplets.size(); i++ )  {
    const TGeoNode* node = pAssembly->m_entries[i];
    Chain new_chain = chain;
    new_chain.emplace_back(node);
    //cout << " Assembly: Entry: " << detail::tools::placementPath(new_chain) << endl;

    G4Transform3D Ta( *(triplets[i].GetRotation()),
                      triplets[i].GetTranslation() );
    if ( triplets[i].IsReflection() )  { Ta = Ta * G4ReflectZ3D(); }

    G4Transform3D Tfinal = transformation * Ta;

    if ( triplets[i].GetVolume() )
    {
      // Generate the unique name for the next PV instance
      // The name has format:
      //
      // av_WWW_impr_XXX_YYY_ZZZ
      // where the fields mean:
      // WWW - assembly volume instance number
      // XXX - assembly volume imprint number
      // YYY - the name of a log. volume we want to make a placement of
      // ZZZ - the log. volume index inside the assembly volume
      //
      stringstream pvName;
      pvName << "av_"
             << GetAssemblyID()
             << "_impr_"
             << GetImprintsCount()
             << "_"
             << triplets[i].GetVolume()->GetName().c_str()
             << "_pv_"
             << i
             << ends;

      // Generate a new physical volume instance inside a mother
      // (as we allow 3D transformation use G4ReflectionFactory to
      //  take into account eventual reflection)
      //
      G4PhysicalVolumesPair pvPlaced
        = G4ReflectionFactory::Instance()->Place( Tfinal,
                                                  pvName.str().c_str(),
                                                  triplets[i].GetVolume(),
                                                  pMotherLV,
                                                  false,
                                                  numberOfDaughters + i,
                                                  surfCheck );

      // Register the physical volume created by us so we can delete it later
      //
      //fPVStore.emplace_back( pvPlaced.first );
      info.g4VolumeImprints[vol].emplace_back(new_chain,pvPlaced.first);
#if 0
      cout << " Assembly:Parent:" << parent->GetName() << " " << node->GetName()
           << " " <<  (void*)node << " G4:" << pvName.str() << " Daughter:"
           << detail::tools::placementPath(new_chain) << endl;
      cout << endl;
#endif

      if ( pvPlaced.second )  {
        G4Exception("G4AssemblyVolume::MakeImprint(..)", "GeomVol0003", FatalException,
                    "Fancy construct popping new mother from the stack!");
        //fPVStore.emplace_back( pvPlaced.second );
      }
    }
    else if ( triplets[i].GetAssembly() )  {
      // Place volumes in this assembly with composed transformation
      imprint(info, parent, new_chain, (Geant4AssemblyVolume*)triplets[i].GetAssembly(), pMotherLV, Tfinal, i*100+copyNumBase, surfCheck );
    }
    else   {
      --level;
      G4Exception("G4AssemblyVolume::MakeImprint(..)",
                  "GeomVol0003", FatalException,
                  "Triplet has no volume and no assembly");
    }