CoreObjects to calculate queue level at the end of simulation. Also operators...

CoreObjects to calculate queue level at the end of simulation. Also operators to ouput schedule even if empty

dream/simulation/CoreObject.py

@@ -603,6 +603,9 @@ class CoreObject(ManPyObject):
         
         activeObject=self.getActiveObject()
         activeObjectQueue=self.getActiveObjectQueue()
+        
+        import numpy
+        self.wipStatList=numpy.concatenate((self.wipStatList,[[self.env.now, len(activeObjectQueue)]])) 
                
         #calculate the offShift time for current entity
         offShiftTimeInCurrentEntity=0

dream/simulation/Operator.py

@@ -284,18 +284,17 @@ class Operator(ObjectResource):
         json['results']['waiting_ratio'] = self.Waiting
         json['results']['off_shift_ratio'] = self.OffShift
         if self.ouputSchedule:
-            if self.schedule:
-                json['results']['schedule']=[]
-                for record in self.schedule:
-                    if len(record)==3:
-                        json['results']['schedule'].append({
-                            'stationId':record[0].id,
-                            'entranceTime':record[1],
-                            'exitTime':record[2]})
-                    else:
-                        json['results']['schedule'].append({
-                            'stationId':record[0].id,
-                            'entranceTime':record[1]})
+            json['results']['schedule']=[]
+            for record in self.schedule:
+                if len(record)==3:
+                    json['results']['schedule'].append({
+                        'stationId':record[0].id,
+                        'entranceTime':record[1],
+                        'exitTime':record[2]})
+                else:
+                    json['results']['schedule'].append({
+                        'stationId':record[0].id,
+                        'entranceTime':record[1]})
         G.outputJSON['elementList'].append(json)
     
     #===========================================================================