|
 The FlightManager is the primary class with manages all the imported data files. The internal parser creates Flight objects for each unique flight and
appends all flight path coordinates associated with that flight. Specific information such as all flight positions of a given airline or flight positions in a
given timeframe are generated from the FlightManager. During the loading of the data set, the parsing and database construction is done in a separate
thread allowing the user to navigate the map while the loading icon in the center of the screen shows the current loading status of the data set files.
The FlightManager holds a hash table of Flight objects. Each Flight object represents a single flight object holding all relevant information of that flight
such as flight ID, name, airline, departing/arriving, and an array list of all positions on that flight in the Coords object.
The Coords object was created in encapsulate information needed to extract flight information over a given time period. Each Coord holds a
Location object, which is a Modest Maps object containing the latitude and longitude of that coordinate. Coords also hold the current bearing and
time stamp associated with that Location to aid in rendering on the map. A pointer to the parent flight object is also kept to get any information
needed from the Flight object such as airline carrier.
The date sliders allow the user to scan through the positions of selected airlines. Two sliders are implemented to allow more precision in selecting the possible 2273 time positions. The day
of the week buttons between the sliders allow users to select or deselect entire days. When using the two sliders, the days that the sliders cover is highlighted as shown above. When the
user presses a specific date, this disables the functionality of the slider and the map will only display flights on the selected days. Pressing the sliders again will restore map control to the
sliders and return the day buttons as simply markers.
The airline selector takes in the FlightManagers compiled list of airlines and generates and aligns buttons for each airline. Pressing an airline button will display all flights from that airline in
the current timeframe. The color selector in the upper left of the flight selector pane allows the user to decide what color an airline will appear as on the map. Simply click on the desired
color (selected color has a white outline) and click on the desired flight. As in project 1, the airline selector is contained within a collapsable pane that slides the window when the button at
the bottom of the screen is pressed.
|
