add detector simulation

src/HEP/Geant/Scene.h

@@ -32,6 +32,7 @@
 #include "Core/Vector.h"
 #include "Solid.h"
 #include "GeantEvent.h"
+#include "HEP/Detectors/MuonEvent.h"
 
 class G4VPhysicalVolume;
 
@@ -68,6 +69,9 @@ public:
   /// Results are appended to the provided vector.
   void RunSimulation(int nEvents, Vector<GeantEvent> &results);
 
+  /// Specialized detector simulation trackingMuonEvent line crossings.
+  void RunDetectorSimulation(int nEvents, Vector<MuonEvent> &results);
+
 private:
   class SceneImpl *d;
 };