diff --git a/pom.xml b/pom.xml
index 471603b..cc6b58c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -55,8 +55,8 @@ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/ma
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-compiler-plugin</artifactId>
 				<configuration>
-					<source>1.8</source>
-					<target>1.8</target>
+					<source>1.7</source>
+					<target>1.7</target>
 				</configuration>
 			</plugin>
 		</plugins>
diff --git a/src/main/java/seng202/group9/GUI/BarChooserController.java b/src/main/java/seng202/group9/GUI/BarChooserController.java
index c7441b9..19089cf 100644
--- a/src/main/java/seng202/group9/GUI/BarChooserController.java
+++ b/src/main/java/seng202/group9/GUI/BarChooserController.java
@@ -58,6 +58,9 @@ public class BarChooserController extends Controller{
     }
 
     public void load(){
+        if (!checkDataset()){
+            return;
+        }
         datatypechooser.setItems(FXCollections.observableArrayList("Airports","Airlines","Routes"));
         datatypechooser.getSelectionModel().selectFirst();
         datatypechooser.getSelectionModel().selectedIndexProperty().addListener(new ChangeListener<Number>() {
diff --git a/src/main/java/seng202/group9/GUI/BarGraphController.java b/src/main/java/seng202/group9/GUI/BarGraphController.java
index 14cd66a..ea75d83 100644
--- a/src/main/java/seng202/group9/GUI/BarGraphController.java
+++ b/src/main/java/seng202/group9/GUI/BarGraphController.java
@@ -30,6 +30,7 @@ public class BarGraphController extends Controller {
     private HashMap<String, ArrayList> useddata = new HashMap<String, ArrayList>();
     private Session currentsession;
 
+
     /**
      * Takes data from the current dataset and places it into the displayed bar graph.
      */
@@ -63,35 +64,30 @@ public class BarGraphController extends Controller {
     private String departureAirport;
     private String arrivalAirport;
 
-    private void datasetupCustomarAirport(ArrayList<Airport> current_air_ports){
+/**    private void datasetupCustomarAirport(ArrayList<Airport> current_air_ports){
         //Takes out the specified field  then adds to the used data dict.
         for (Airport entry : current_air_ports){
-            String name = "Error";
-            if (currentsession.getSelectedgraphagainst() == "Name") {
-                name = entry.getName();
-            }
-            else if (currentsession.getSelectedgraphagainst() == "ICAO") {
+            currentsession.getSelectedgraphagainst() == "Name";
+            name = entry.getName();
+            currentsession.getSelectedgraphagainst() == "ICAO";
                 name = entry.getICAO();
-            }
-            else if (currentsession.getSelectedgraphagainst() == "IATA_FFA") {
+            currentsession.getSelectedgraphagainst() == "IATA_FFA"
                 name = entry.getIATA_FFA();
-            }
-            else if (currentsession.getSelectedgraphagainst() == "City") {
-                name = entry.getCityName();
-            }
-            else if (currentsession.getSelectedgraphagainst() == "Country") {
-                name = entry.getCountryName();
-            }
+            currentsession.getSelectedgraphagainst() == "City"
+
+            currentsession.getSelectedgraphagainst() == "Country"
+            name = entry.getCountryName();
+
             if (useddata.containsKey(name)){
-                //int temp = useddata.get(name);
-                //useddata.replace(name,temp+1);
+                int temp = useddata.get(name);
+                useddata.replace(name,temp+1);
             }else {
                 Integer temp = 1;
-                //useddata.put(name,temp);
+                useddata.put(name,temp);
             }
         }
     }
-
+*/
 
     private void datasetupCustomRoute(ArrayList<Route> current_routes){
         //Takes out the specified field (Currently departure airport and arrival airport) then adds to the used data dict.
@@ -100,32 +96,6 @@ public class BarGraphController extends Controller {
         //}
     }
 
-/**
-            for (Route entry : current_routes){
-        String departs = entry.getDepartureAirport();
-        String arives = entry.getArrivalAirport();
-        if (useddata.containsKey(departs)){
-            ArrayList<Integer> temp = useddata.get(departs);
-            temp.add(1,temp.get(1)+1);
-            useddata.replace(departs,temp);
-        }else {
-            ArrayList<Integer> temp = new ArrayList<Integer>(2);
-            temp.add(0);
-            temp.add(1);
-            useddata.put(departs,temp);
-        }
-        if (useddata.containsKey(arives)){
-            ArrayList<Integer> temp = useddata.get(arives);
-            temp.add(0,temp.get(0)+1);
-            useddata.replace(arives,temp);
-        }else {
-            ArrayList<Integer> temp = new ArrayList<Integer>(2);
-            temp.add(1);
-            temp.add(0);
-            useddata.put(arives,temp);
-        }
-    }
-*/
     /**
      * Takes the current dataset then loads the data to the graph using build graph.
      */
@@ -146,7 +116,7 @@ public class BarGraphController extends Controller {
             else{
                 d = currentdata.getAirports();
             }
-            datasetupCustomarAirport(d);
+            //datasetupCustomarAirport(d);
         }
         else if (temp == "Airlines"){
             ArrayList<Airline> d = new ArrayList();
diff --git a/src/main/java/seng202/group9/GUI/PieChooserController.java b/src/main/java/seng202/group9/GUI/PieChooserController.java
index 72254a4..8cc6db8 100644
--- a/src/main/java/seng202/group9/GUI/PieChooserController.java
+++ b/src/main/java/seng202/group9/GUI/PieChooserController.java
@@ -57,6 +57,9 @@ public class PieChooserController extends Controller{
     }
 
     public void load(){
+        if (!checkDataset()){
+            return;
+        }
         datatypechooser.setItems(FXCollections.observableArrayList("Airports","Airlines","Routes"));
         datatypechooser.getSelectionModel().selectFirst();
         datatypechooser.getSelectionModel().selectedIndexProperty().addListener(new ChangeListener<Number>() {
@@ -74,10 +77,10 @@ public class PieChooserController extends Controller{
 
     public void newFilter(){
         if (datatypechooser.getSelectionModel().getSelectedItem().toString() == "Airports"){
-            createPopUpStage(SceneCode.AIRPORT_FILTER, 600, 330);
+            createPopUpStage(SceneCode.AIRPORT_FILTER, 600, 480);
         }
         else if (datatypechooser.getSelectionModel().getSelectedItem().toString() == "Airlines"){
-            createPopUpStage(SceneCode.AIRLINE_FILTER, 600, 330);
+            createPopUpStage(SceneCode.AIRLINE_FILTER, 600, 370);
         }
         else if (datatypechooser.getSelectionModel().getSelectedItem().toString() == "Routes"){
             createPopUpStage(SceneCode.ROUTE_FILTER, 600, 330);
diff --git a/src/main/java/seng202/group9/GUI/PieGraphController.java b/src/main/java/seng202/group9/GUI/PieGraphController.java
index 62b9b65..34357e9 100644
--- a/src/main/java/seng202/group9/GUI/PieGraphController.java
+++ b/src/main/java/seng202/group9/GUI/PieGraphController.java
@@ -44,9 +44,8 @@ public class PieGraphController extends Controller {
             pieChartData.add(new PieChart.Data(airport,temp));
         }
         //Gives the data to the graph.
-        if (useddata.keySet().size() > 250 && currentsession.getForceGraph()){
+        if (useddata.keySet().size() > 250 && !currentsession.getForceGraph()){
             replaceSceneContent(SceneCode.CHART_ERROR);
-
         }
         else{
             pieGraph.setData(pieChartData);
@@ -70,6 +69,9 @@ public class PieGraphController extends Controller {
             else if (currentsession.getSelectedgraphagainst() == "IATA FFA") {
                 name = entry.getIATA_FFA();
             }
+            else if (currentsession.getSelectedgraphagainst() == "Altitude") {
+                name = String.valueOf(entry.getAltitude());
+            }
             else if (currentsession.getSelectedgraphagainst() == "City") {
                 name = entry.getCityName();
             }
@@ -149,6 +151,9 @@ public class PieGraphController extends Controller {
      * Takes the current dataset then loads the data to the graph using build graph.
      */
     public void load() {
+        if (!checkDataset()){
+            return;
+        }
         currentdata = getParent().getCurrentDataset();
         currentsession = this.getParent().getSession();
         String temp = currentsession.getSelectedDataToGraph();
diff --git a/src/main/java/seng202/group9/Map/Map.java b/src/main/java/seng202/group9/Map/Map.java
index 177c11d..a7cca17 100644
--- a/src/main/java/seng202/group9/Map/Map.java
+++ b/src/main/java/seng202/group9/Map/Map.java
@@ -35,7 +35,7 @@ public class Map {
             });
     }
 
-    public Map(WebView webView, final RoutePath newRoute, TableView table){
+    public Map(WebView webView, final RoutePath newRoute, final TableView table){
         this.webView = webView;
         webEngine = webView.getEngine();
         initMap();