Added Calculation for Heading, Leg Distance and Total Distnace also added the appropriate functio nto commit these to database.

src/main/java/seng202/group9/Controller/Dataset.java

@@ -210,6 +210,7 @@ public class Dataset {
                 }
                 rs.close();
                 stmt.close();
+                flightPaths.get(i).updateFlightPointInfo();
             }
             /*////////////////
             //Get all Routes//
@@ -240,6 +241,10 @@ public class Dataset {
             System.err.println( e.getClass().getName() + ": " + e.getMessage() );
             System.exit(0);
         }
+        //update all flightpaths
+        for (FlightPath flightPath: flightPaths){
+            //updateFlightPointInfo(flightPath);
+        }
         createDataLinks();
     }
 
@@ -720,9 +725,12 @@ public class Dataset {
             }
             if (numOfFlights > 0){
                 stmt.execute(insertFlightPointQuery);
-                stmt.close();
             }
+            stmt.close();
+            c.close();
+
             flightPaths.add(flightPathToAdd);
+            updateFlightPointInfo(flightPathToAdd);
             flightPathDictionary.put(flightPathToAdd.getID(), flightPathToAdd);
         } catch ( Exception e ) {
             System.err.println( e.getClass().getName() + ": " + e.getMessage() );
@@ -1278,6 +1286,7 @@ public class Dataset {
 
         FlightPoint pointToAdd = new FlightPoint(name, pointID+1, id, type, via, headingVal, altitudeVal, legDistVal,
                 totalDistVal,latitudeVal, longitudeVal);
+        updateFlightPointInfo(flightPathDictionary.get(Integer.valueOf(id)));
         flightPathDictionary.get(Integer.valueOf(id)).addFlightPoint(pointToAdd, index);
     }
 
@@ -1962,7 +1971,7 @@ public class Dataset {
             }
             flightPath.setArrivalAirport(flightPoint.getName());
         }
-
+        updateFlightPointInfo(flightPath);
         createDataLinks();
     }
 
@@ -2025,5 +2034,33 @@ public class Dataset {
             System.err.println( e.getClass().getName() + ": " + e.getMessage() );
             System.exit(0);
         }
+        updateFlightPointInfo(flightPath);
+    }
+
+    /**
+     * Updates the Leg Distance, Total Distance and Bearing(Heading) of the Flight points in the flight path.
+     * @param flightPath
+     */
+    public void updateFlightPointInfo(FlightPath flightPath){
+        flightPath.updateFlightPointInfo();
+        Connection c = null;
+        Statement stmt;
+        try {
+            c = DriverManager.getConnection("jdbc:sqlite:res/userdb.db");
+            //move all the points after this forward
+            for (FlightPoint flightPoint: flightPath.getFlightPoints()){
+                stmt = c.createStatement();
+                String updatePointQuery = "UPDATE `"+this.name+"_Flight_Points` SET `Heading` = "+flightPoint.getHeading()+", " +
+                        "`Tot_Dist` = "+flightPoint.getTotalDistance()+", `Leg_Dist` = "+flightPoint.getLegDistance()+" WHERE `POINT_ID` = " +
+                        "" + flightPoint.getID();
+                stmt.execute(updatePointQuery);
+                stmt.close();
+            }
+            c.close();
+        } catch ( Exception e ) {
+            System.err.println( e.getClass().getName() + ": " + e.getMessage() );
+            e.printStackTrace();
+            System.exit(0);
+        }
     }
 }

src/main/java/seng202/group9/Core/FlightPath.java

@@ -183,4 +183,37 @@ public class FlightPath {
 		}
 		return routePath;
 	}
+	public void updateFlightPointInfo(){
+		if (flightPoints.size() == 0){
+			return;
+		}
+		FlightPoint startPoint = flightPoints.get(0);
+		startPoint.setLegDistance(0);
+		startPoint.setTotalDistance(0);
+		startPoint.setHeading(0);
+		for (int i = 1; i < flightPoints.size(); i ++){
+			double distance = 0;
+			double dLong = flightPoints.get(i - 1).getLongitude() - flightPoints.get(i).getLongitude();
+			double dLat = flightPoints.get(i - 1).getLatitude() - flightPoints.get(i).getLatitude();
+			dLong = Math.toRadians(dLong);
+			dLat = Math.toRadians(dLat);
+			double a = Math.pow((Math.sin(dLat/2)), 2) + Math.cos(Math.toRadians(flightPoints.get(i).getLatitude())) * Math.cos(Math.toRadians(flightPoints.get(i - 1).getLatitude())) * Math.pow(Math.sin(dLong/2), 2);
+			double c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
+			distance = 6371 * c;
+			//convert distance from km to nautical mile
+			distance = distance * 0.53995680345572;
+			flightPoints.get(i).setLegDistance(distance);
+			flightPoints.get(i).setTotalDistance(distance + flightPoints.get(i).getTotalDistance());
+			//calculate bearing
+			double lat1 = Math.toRadians(flightPoints.get(i - 1).getLatitude());
+			double lat2 = Math.toRadians(flightPoints.get(i).getLatitude());
+			double lng1 = Math.toRadians(flightPoints.get(i - 1).getLongitude());
+			double lng2 = Math.toRadians(flightPoints.get(i).getLongitude());
+			double y = Math.sin(dLong) * Math.cos(lat2);
+			double x = Math.cos(lat1) * Math.sin(lat2);
+			x -= Math.sin(lat1) * Math.cos(lat2) * Math.cos(dLong);
+			double heading = 360 - Math.toDegrees(Math.atan2(y, x));
+			flightPoints.get(i).setHeading((int)heading);
+		}
+	}
 }