public int getLength() { return length.getValue(); }
public int getHead() { return head.getValue(); }
public int getTail() { return tail.getValue(); }
public int getLongitude() { return longitude.getValue(); }
public int getStartTime() { return startTime.getValue(); }
public int getWindDirection() { return windDirection.getValue(); }
public int getWindForce() { return windForce.getValue(); }
public int getLatitude() { return latitude.getValue(); }