BDSGeometryComponent.cc

/* 
Beam Delivery Simulation (BDSIM) Copyright (C) BDSIM Collaboration, 2001 - 2026.
 
This file is part of BDSIM.
 
BDSIM is free software: you can redistribute it and/or modify 
it under the terms of the GNU General Public License as published 
by the Free Software Foundation version 3 of the License.
 
BDSIM is distributed in the hope that it will be useful, but 
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with BDSIM.  If not, see <http://www.gnu.org/licenses/>.
*/
#include "BDSDebug.hh"
#include "BDSException.hh"
#include "BDSExtent.hh"
#include "BDSGeometryComponent.hh"
#include "BDSSDManager.hh"
#include "BDSSDType.hh"
 
#include "globals.hh"
#include "G4AssemblyVolume.hh"
#include "G4LogicalVolume.hh"
#include "G4RotationMatrix.hh"
#include "G4UserLimits.hh"
#include "G4VisAttributes.hh"
#include "G4VPhysicalVolume.hh"
#include "G4VSolid.hh"
 
#include <algorithm>
#include <map>
#include <set>
 
class G4VSensitiveDetector;
 
BDSGeometryComponent::BDSGeometryComponent(G4VSolid*            containerSolidIn,
                                           G4LogicalVolume*     containerLVIn,
                                           const BDSExtent&     extentIn,
                                           const BDSExtent&     innerExtentIn,
                                           const G4ThreeVector& placementOffsetIn,
                                           G4RotationMatrix*    placementRotationIn):
  containerIsAssembly(false),
  containerSolid(containerSolidIn),
  containerLogicalVolume(containerLVIn),
  containerAssembly(nullptr),
  outerExtent(extentIn),
  innerExtent(innerExtentIn),
  overrideSensitivity(false),
  placementOffset(placementOffsetIn),
  placementRotation(placementRotationIn),
  lvsExcludedFromBiasing(nullptr)
{;}
 
BDSGeometryComponent::BDSGeometryComponent(G4AssemblyVolume* containerAssemblyIn,
                                           const BDSExtent&     extentIn,
                                           const BDSExtent&     innerExtentIn,
                                           const G4ThreeVector& placementOffsetIn,
                                           G4RotationMatrix*    placementRotationIn):
  containerIsAssembly(true),
  containerSolid(nullptr),
  containerLogicalVolume(nullptr),
  containerAssembly(containerAssemblyIn),
  outerExtent(extentIn),
  innerExtent(innerExtentIn),
  overrideSensitivity(false),
  placementOffset(placementOffsetIn),
  placementRotation(placementRotationIn),
  lvsExcludedFromBiasing(nullptr)
{;}
 
BDSGeometryComponent::BDSGeometryComponent(const BDSGeometryComponent& component):
  containerIsAssembly(component.containerIsAssembly),
  containerSolid(component.containerSolid),
  containerLogicalVolume(component.containerLogicalVolume),
  containerAssembly(component.containerAssembly),
  outerExtent(component.outerExtent),
  innerExtent(component.innerExtent),
  allLogicalVolumes(component.allLogicalVolumes),
  sensitivity(component.sensitivity),
  overrideSensitivity(component.overrideSensitivity),
  allPhysicalVolumes(component.allPhysicalVolumes),
  placementOffset(component.placementOffset),
  placementRotation(component.placementRotation),
  lvsExcludedFromBiasing(nullptr)
{;}
 
BDSGeometryComponent::~BDSGeometryComponent()
{
  for (auto daughter : allDaughters)
    {delete daughter;}
 
  // we let Geant4 handle the deletion of physical volumes, logical volumes and solids
  
  for (auto rm : allRotationMatrices)
    {delete rm;}
 
  for (auto vis : allVisAttributes)
    {delete vis;}
 
  for (auto ul : allUserLimits)
    {delete ul;}
  
  delete placementRotation;
}
 
void BDSGeometryComponent::InheritExtents(BDSGeometryComponent const * const anotherComponent)
{
  outerExtent = anotherComponent->GetExtent();
  innerExtent = anotherComponent->GetInnerExtent();
}
 
void BDSGeometryComponent::InheritExtents(BDSGeometryComponent const * const anotherComponent,
                                          const G4ThreeVector &offset)
{
  outerExtent = anotherComponent->GetExtent().Translate(offset);
  innerExtent = anotherComponent->GetInnerExtent().Translate(offset);
}
 
void BDSGeometryComponent::RegisterSolid(const std::set<G4VSolid*>& solids)
{
  for (auto solid : solids)
    {RegisterSolid(solid);}
}
 
void BDSGeometryComponent::RegisterLogicalVolume(const std::set<G4LogicalVolume*>& logicalVolumes)
{
  for (auto lv : logicalVolumes)
    {RegisterLogicalVolume(lv);}
}
 
void BDSGeometryComponent::RegisterPhysicalVolume(const std::set<G4VPhysicalVolume*>& physicalVolumes)
{
  for (auto pv : physicalVolumes)
    {RegisterPhysicalVolume(pv);}
}
 
void BDSGeometryComponent::RegisterRotationMatrix(const std::set<G4RotationMatrix*>& rotationMatrices)
{
  for (auto rm : rotationMatrices)
    {RegisterRotationMatrix(rm);}
}
 
void BDSGeometryComponent::RegisterSensitiveVolume(G4LogicalVolume* sensitiveVolume,
                                                   BDSSDType sensitivityType)
{
  if (!sensitiveVolume)
    {return;} // can't register nullptr
#ifdef BDSDEBUG
  G4cout << __METHOD_NAME__ << sensitiveVolume->GetName() << " : " << sensitivityType << G4endl;
#endif
 
  // check and ensure the logical volume is registered in this component
  RegisterLogicalVolume(sensitiveVolume);
 
  // this may overwrite it if it's already in the map
  sensitivity[sensitiveVolume] = sensitivityType;
}
 
void BDSGeometryComponent::RegisterSensitiveVolume(const std::set<G4LogicalVolume*>& sensitiveVolumes,
                                                   BDSSDType sensitivityType)
{
  for (auto sv : sensitiveVolumes)
    {RegisterSensitiveVolume(sv, sensitivityType);}
}
 
void BDSGeometryComponent::RegisterSensitiveVolume(const std::map<G4LogicalVolume*, BDSSDType>& sensitiveVolumes)
{
  sensitivity.insert(sensitiveVolumes.begin(), sensitiveVolumes.end());
}
 
void BDSGeometryComponent::RegisterVisAttributes(const std::set<G4VisAttributes*>& visAttributes)
{
  for (auto va : visAttributes)
    {RegisterVisAttributes(va);}
}
 
void BDSGeometryComponent::RegisterUserLimits(const std::set<G4UserLimits*>& userLimits)
{
  for (auto ul : userLimits)
    {RegisterUserLimits(ul);}
}
 
void BDSGeometryComponent::InheritObjects(BDSGeometryComponent* component)
{
  RegisterSolid(component->GetAllSolids());
  RegisterLogicalVolume(component->GetAllLogicalVolumes());
  RegisterSensitiveVolume(component->GetAllSensitiveVolumes());
  RegisterPhysicalVolume(component->GetAllPhysicalVolumes());
  RegisterRotationMatrix(component->GetAllRotationMatrices());
  RegisterVisAttributes(component->GetAllVisAttributes());
  RegisterUserLimits(component->GetAllUserLimits());
}
 
std::set<G4LogicalVolume*> BDSGeometryComponent::GetAllLogicalVolumes() const
{
  std::set<G4LogicalVolume*> result(allLogicalVolumes);
  for (auto it : allDaughters)
    {
      auto dLVs = it->GetAllLogicalVolumes();
      result.insert(dLVs.begin(), dLVs.end());
    }
  return result;
}
 
std::set<G4LogicalVolume*> BDSGeometryComponent::GetAllBiasingVolumes() const
{
  std::set<G4LogicalVolume*> result(allLogicalVolumes);
 
  for (auto it : allDaughters) // do the same recursively for daughters
    {
      auto dLVs = it->GetAllBiasingVolumes();
      result.insert(dLVs.begin(), dLVs.end());
    }
 
  if (lvsExcludedFromBiasing)
    {
      for (const auto vol : *lvsExcludedFromBiasing)
        {result.erase(vol);}
    }
  return result;
}
 
std::map<G4LogicalVolume*, BDSSDType> BDSGeometryComponent::GetAllSensitiveVolumes() const
{
  // start by copy sensitive volumes belonging to this object
  std::map<G4LogicalVolume*, BDSSDType> result(sensitivity);
  for (auto it : allDaughters)
    {
      auto dSVs = it->GetAllSensitiveVolumes();
      result.insert(dSVs.begin(), dSVs.end()); // copy into result map
    }
  return result;
}
 
void BDSGeometryComponent::AttachSensitiveDetectors()
{
  BDSSDManager* sdm = BDSSDManager::Instance();
  for (auto mapping : sensitivity)
    {mapping.first->SetSensitiveDetector(sdm->SensitiveDetector(mapping.second, !overrideSensitivity));}
  for (auto daughter : allDaughters)
    {daughter->AttachSensitiveDetectors();}
}
 
void BDSGeometryComponent::ExcludeLogicalVolumeFromBiasing(G4LogicalVolume* lv)
{
  if (allLogicalVolumes.find(lv) == allLogicalVolumes.end())
    {
      throw BDSException(__METHOD_NAME__, "excluding volume \"" + lv->GetName()
                         + "\" from component \"" + GetName()
                         + "\" but it's not a member of this piece of geometry or its daughters.");
    }
 
  if (!lvsExcludedFromBiasing)
    {lvsExcludedFromBiasing = new std::set<G4LogicalVolume*>();}
  lvsExcludedFromBiasing->insert(lv);
}
 
void BDSGeometryComponent::StripOuterAndMakeAssemblyVolume()
{
  if (containerIsAssembly)
    {return;}
  containerAssembly = new G4AssemblyVolume();
  for (G4int i = 0; i < (G4int)containerLogicalVolume->GetNoDaughters(); i++)
    {
      auto daughterPV = containerLogicalVolume->GetDaughter(i);
      auto daughterLV = daughterPV->GetLogicalVolume();
      auto translation = daughterPV->GetObjectTranslation();
      auto rotation = daughterPV->GetObjectRotation(); // could be nullptr
      G4RotationMatrix* rm = rotation ? new G4RotationMatrix(*(rotation)) : nullptr;
      containerAssembly->AddPlacedVolume(daughterLV, translation, rm);
    }
  containerIsAssembly = true;
}
 
void BDSGeometryComponent::AttachUserLimitsToAssembly(G4AssemblyVolume* av,
                                                      G4UserLimits* ul)
{
  std::set<G4LogicalVolume*> lvSet;
  auto it = av->GetVolumesIterator();
  for (G4int i = 0; i < (G4int)av->TotalImprintedVolumes(); i++, it++)
    {lvSet.insert((*it)->GetLogicalVolume());}
  for (auto& lv : lvSet)
    {lv->SetUserLimits(ul);}
}