group consumption and production fix

src/ui/view/StatisticGraph.java

@@ -316,12 +316,12 @@ public class StatisticGraph extends JPanel {
 						model.getCurIteration());
 				break;
 			case TrackedDataSet.GROUP_PRODUCTION:
-				val = getTotalProductionAt(((CpsUpperNode) set.getCpsObject()).getNodes(),model.getCurIteration());
+				set.setValAt(getTotalProductionAt(((CpsUpperNode) set.getCpsObject()).getNodes(), model.getCurIteration()),
+						model.getCurIteration());
 				break;
 			case TrackedDataSet.GROUP_CONSUMPTION:
-				val = getTotalConsumptionAt(((CpsUpperNode) set.getCpsObject()).getNodes(),model.getCurIteration());
-				controller.addTextToConsole(val+"");
-				val *= -1;
+				set.setValAt(-getTotalConsumptionAt(((CpsUpperNode) set.getCpsObject()).getNodes(), model.getCurIteration()),
+						model.getCurIteration());
 				break;
 			case TrackedDataSet.AMOUNT_SUBNETS:
 				set.setValAt(controller.getSimManager().getSubNets().size(), model.getCurIteration());