WIP: register the dummy fast sim tool.

Detector/DetDriftChamber/compact/det.xml

@@ -50,8 +50,13 @@
     <vis name="VisibleGreen" alpha="1.0" r="0.0" g="1.0" b="0.0" drawingStyle="solid" lineStyle="solid" showDaughters="true" visible="true"/>
   </display>
 
+  <regions>
+    <region name="DriftChamberRegion">
+    </region>
+  </regions>
+
   <detectors>
-    <detector id="1" name="DriftChamber" type="DriftChamber" readout="DriftChamberHitsCollection" vis="VisibleBlue" sensitive="true">
+    <detector id="1" name="DriftChamber" type="DriftChamber" readout="DriftChamberHitsCollection" vis="VisibleBlue" sensitive="true" region="DriftChamberRegion">
       <envelope vis="SeeThrough">
         <shape type="BooleanShape" operation="Union" material="Air">
           <shape type="Tube" rmin="SDT_inner_chamber_radius_min" rmax="SDT_inner_chamber_radius_max" dz="SDT_half_length" />

Detector/DetSegmentation/src/GridDriftChamber.cpp

@@ -56,13 +56,13 @@ CellID GridDriftChamber::cellID(const Vector3D& /*localPosition*/, const Vector3
   _decoder->set(cID, m_phiID, lphi);
 
 
-std::cout << "#######################################: " 
-          <<  " offset : " << m_offset
-          << " offsetphi: " << offsetphi
-          << " layerID: " << layerID
-          << " r: " << _currentRadius
-          << " layerphi: " << _currentLayerphi
-          << std::endl;
+// std::cout << "#######################################: " 
+//           <<  " offset : " << m_offset
+//           << " offsetphi: " << offsetphi
+//           << " layerID: " << layerID
+//           << " r: " << _currentRadius
+//           << " layerphi: " << _currentLayerphi
+//           << std::endl;
 
   return cID;
 }

Examples/options/tut_detsim_SDT.py

@@ -117,6 +117,13 @@ if int(os.environ.get("VIS", 0)):
 detsimalg.RunCmds = [
 #    "/tracking/verbose 1",
 ]
+
+from Configurables import DummyFastSimG4Tool
+dummy_fastsim_tool = DummyFastSimG4Tool("DummyFastSimG4Tool")
+
+detsimalg.FastSimG4Tools = [
+    "DummyFastSimG4Tool"
+]
 detsimalg.AnaElems = [
     # example_anatool.name()
     # "ExampleAnaElemTool"

Simulation/DetSimCore/src/DetSimAlg.cpp

@@ -43,7 +43,8 @@ DetSimAlg::initialize() {
     // Detector Construction
     m_root_detelem = ToolHandle<IDetElemTool>(m_root_det_elem.value());
 
-    for (auto fastsimname: m_fast_simtools) {
+    for (auto fastsimname: m_fast_simnames) {
+        info() << "Fast Sim Tool: " << fastsimname << endmsg;
         m_fast_simtools.push_back(fastsimname);
     }
 

Simulation/DetSimCore/src/DetectorConstruction.cpp

@@ -65,6 +65,8 @@ DetectorConstruction::Construct() {
     // Associate Fast Simulation Model and Regions
     // =======================================================================
     for (auto fastsimtool: m_fast_simtools) {
+        G4cout << "Invoke CreateFastSimulationModel of fastsimtool instance "
+               << m_fast_simtools << G4endl;
         fastsimtool->CreateFastSimulationModel();
     }
 

Simulation/DetSimFastModel/src/DummyFastSimG4Tool.cpp

 #include "DummyFastSimG4Tool.h"
 
+#include "G4Region.hh"
+#include "G4RegionStore.hh"
+
 #include "G4VFastSimulationModel.hh"
+#include "DummyFastSimG4Model.h"
+
+DECLARE_COMPONENT(DummyFastSimG4Tool);
 
 StatusCode DummyFastSimG4Tool::initialize() {
     StatusCode sc;
@@ -15,6 +21,20 @@ StatusCode DummyFastSimG4Tool::finalize() {
 }
 
 bool DummyFastSimG4Tool::CreateFastSimulationModel() {
+    // In this method:
+    // * Retrieve the G4Region
+    // * Create Model
+    // * Associate model and region
+
+    G4String model_name = "DummyFastSimG4Model";
+    G4String region_name = "DriftChamberRegion";
+    G4Region* aEnvelope = G4RegionStore::GetInstance()->GetRegion(region_name);
+    if (!aEnvelope) {
+        error() << "Failed to find G4Region '" << region_name << "'" << endmsg;
+        return false;
+    }
 
+    DummyFastSimG4Model* model = new DummyFastSimG4Model(model_name, aEnvelope);
+    info() << "Create Model " << model_name << " for G4Region " << region_name << endmsg;
     return true;
 }