seems to work with different geometries

src/ActionInitialization.cc

@@ -65,11 +65,10 @@ void ActionInitialization::Build() const
   auto runact = new RunAction;
   SetUserAction(runact);
   auto eventAction = new EventAction;
-  eventAction->setConstructionWrapper(fDetConstruction->getConstructionWrapper());
   eventAction->setRunAction(runact);
   eventAction->setPrimaryGeneratorAction(gen);
   SetUserAction(eventAction);
-  auto steppingAction = new SteppingAction(fDetConstruction,eventAction);
+  auto steppingAction = new SteppingAction(eventAction);
   SetUserAction(steppingAction);
 }
 

src/DetectorConstruction.cc

@@ -53,9 +53,15 @@
 #include "G4PVParameterised.hh"
 #include "G4VPVParameterisation.hh"
 
+#include "G4GeometryManager.hh"
+#include "G4PhysicalVolumeStore.hh"
+#include "G4LogicalVolumeStore.hh"
+#include "G4SolidStore.hh"
+
+
 namespace B4
 {
-
+DetectorConstruction* DetectorConstruction::_global_detector_construction=nullptr;
   //helper
 
 class LayerParametrisation: public G4VPVParameterisation{
@@ -129,6 +135,13 @@ nistManager->FindOrBuildMaterial("G4_AIR");
 
 G4VPhysicalVolume* DetectorConstruction::DefineVolumes()
 {
+
+  
+  G4GeometryManager::GetInstance()->OpenGeometry();
+  G4PhysicalVolumeStore::GetInstance()->Clean();
+  G4LogicalVolumeStore::GetInstance()->Clean();
+  G4SolidStore::GetInstance()->Clean();
+
   // Geometry parameters
   auto & cwLayers = cw->getLayers();
   G4int nofLayers = cwLayers.size();
@@ -201,6 +214,8 @@ G4VPhysicalVolume* DetectorConstruction::DefineVolumes()
     layer.name = "Layer_"+std::to_string(layerNumber);
     layerNumber++;
 
+    G4cout << "building layer " << layer.name << G4endl;
+
     position += layer.thickness / 2 *cm;
       auto layerS
         = new G4Box(layer.name,           // its name

src/EventAction.cc

@@ -40,6 +40,7 @@
 
 #include "Randomize.hh"
 #include <iomanip>
+#include "DetectorConstruction.hh"
 
 namespace B4a
 {
@@ -48,6 +49,7 @@ namespace B4a
 
 void EventAction::BeginOfEventAction(const G4Event* /*event*/)
 {
+  auto cw = B4::DetectorConstruction::getDetectorConstruction()->getConstructionWrapper();
   // initialisation per event
   if(cw == nullptr){
     G4cout << "ConstructionWrapper not found" << G4endl;
@@ -82,7 +84,7 @@ void EventAction::EndOfEventAction(const G4Event* event)
 
   // get analysis manager
   auto analysisManager = G4AnalysisManager::Instance();
-
+  auto cw = B4::DetectorConstruction::getDetectorConstruction()->getConstructionWrapper();
 
   //cw->printSensorEnergies();//DEBUG
 

src/G4System.cc

@@ -11,16 +11,19 @@ void G4System::init(ConstructionWrapper &CW){
 
   bool first_init=true;
 
+
   if(runManager == nullptr){
     // Construct the default run manager
     //
     runManager =
       G4RunManagerFactory::CreateRunManager(G4RunManagerType::Default);
     runManager->SetNumberOfThreads(20);//more doesn't make sense
+    runManager->SetVerboseLevel(0);
   }
   else{
+    
      // Abort the current run
-     G4RunManager::GetRunManager()->AbortRun(true);
+     //G4RunManager::GetRunManager()->AbortRun(true);
      first_init = false;
      //delete actionInitialization;
      //delete detConstruction;
@@ -28,6 +31,7 @@ void G4System::init(ConstructionWrapper &CW){
   }
 
 
+
   G4String session;
   ui = nullptr;
   if ( gui ) {
@@ -36,10 +40,11 @@ void G4System::init(ConstructionWrapper &CW){
 
   // Set mandatory initialization classes
   //
-  
-  detConstruction = new B4::DetectorConstruction(&CW);
   if(first_init){
+    
+     detConstruction = new B4::DetectorConstruction(&CW);
      runManager->SetUserInitialization(detConstruction);
+
      auto physicsList = new FTFP_BERT;
      runManager->SetUserInitialization(physicsList);
 
@@ -47,26 +52,25 @@ void G4System::init(ConstructionWrapper &CW){
     runManager->SetUserInitialization(actionInitialization);
   }
   else{
-    actionInitialization->setDetectorConstruction(detConstruction);
-
-    G4RunManager::GetRunManager()->GeometryHasBeenModified();
-    G4RunManager::GetRunManager()->ReinitializeGeometry(true);
-    //runManager->SetUserInitialization(detConstruction);
+    detConstruction->setConstructionWrapper(&CW);
+    runManager->ReinitializeGeometry(true);
   }
 
   if(visManager == nullptr){
-   // Initialize visualization
-  //
-  visManager = new G4VisExecutive;
-  // G4VisExecutive can take a verbosity argument - see /vis/verbose guidance.
-  // G4VisManager* visManager = new G4VisExecutive("Quiet");
-  
-  visManager->Initialize();
+      // Initialize visualization
+     //
+     visManager = new G4VisExecutive;
+     // G4VisExecutive can take a verbosity argument - see /vis/verbose guidance.
+     // G4VisManager* visManager = new G4VisExecutive("Quiet");
+     
+     visManager->Initialize();
   }
 
   // Get the pointer to the User Interface manager
   UImanager = G4UImanager::GetUIpointer();
 
+  runManager->Initialize();
+
   // Process macro or start UI session
   //
 }

src/SteppingAction.cc

@@ -41,10 +41,8 @@ namespace B4a
 
 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 
-SteppingAction::SteppingAction(const DetectorConstruction* detConstruction,
-                               EventAction* eventAction)
-  : fDetConstruction(detConstruction),
-    fEventAction(eventAction)
+SteppingAction::SteppingAction(EventAction* eventAction)
+  : fEventAction(eventAction)
 {}
 
 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
@@ -62,14 +60,14 @@ void SteppingAction::UserSteppingAction(const G4Step* step)
   //return;
   
   //find the layer through the constructionwrapper that corresponds to the volume
-  auto cw = fDetConstruction->getConstructionWrapper();
+  auto cw = DetectorConstruction::getDetectorConstruction()->getConstructionWrapper();
   if(cw == nullptr){
     G4cout << "ConstructionWrapper not found" << G4endl;
     throw std::runtime_error("ConstructionWrapper not found");
   }
 
   
-  auto sensor = fDetConstruction->getConstructionWrapper()->getSensorByVolume(volume);
+  auto sensor = DetectorConstruction::getDetectorConstruction()->getConstructionWrapper()->getSensorByVolume(volume);
   if(sensor == nullptr){
     //can simply be not an active volume, so no need to throw an error
     //G4cout << "Sensor not found in" << volume->GetName() << G4endl; //DEBUG