+//______________________________________________________________________
+AliITSsimulation::AliITSsimulation(): TObject(),
+fpList(0),
+fModule(0),
+fEvent(0),
+fDebug(0){
+ // Default constructor
+ // Inputs:
+ // none.
+ // Outputs:
+ // none.
+ // Return:
+ // a default constructed AliITSsimulation class
+ fDetType = 0;
+}
+//______________________________________________________________________
+AliITSsimulation::AliITSsimulation(AliITSDetTypeSim *dettyp): TObject(),
+fpList(0),
+fModule(0),
+fEvent(0),
+fDebug(0){
+ // Default constructor
+ // Inputs:
+ // AliITSDetTypeSim * : object used to access segmentation and response
+ // Outputs:
+ // none.
+ // Return:
+ // a default constructed AliITSsimulation class
+ fDetType = dettyp;