/// <summary>
/// Constructor which sets properties.
/// </summary>
/// <param name="tdi">The train drawing info to which this vertex belongs.</param>
/// <param name="time">The time of day that the vertex represents.</param>
/// <param name="arrivalDeparture">Whether the vertex represents an arrival time, a departure time, or both.</param>
/// <param name="x">The X-coordinate of the vertex.</param>
/// <param name="y">The Y-coordinate of the vertex.</param>
public VertexInformation(TrainDrawingInfo tdi, TimeOfDay time, ArrivalDepartureOptions arrivalDeparture, double x, double y)
{
TrainDrawingInfo = tdi;
Time = time;
ArrivalDeparture = arrivalDeparture;
X = x;
Y = y;
}
/// <summary>
/// Generate train drawing information.
/// </summary>
/// <returns>A series of train drawing information objects containing drawing instructions.</returns>
public IEnumerable <TrainDrawingInfo> GetTrainDrawingInformation()
{
RecomputeTimeBase();
RecomputeLocationCoordinates();
foreach (Train train in TrainList.Where(t => t.TrainTimes?.Count > 0))
{
TrainDrawingInfo tdi = new TrainDrawingInfo {
Properties = train.GraphProperties, Headcode = train.Headcode, Train = train
};
for (int i = 0; i < train.TrainTimes.Count; ++i)
{
if (train.TrainTimes[i]?.ArrivalTime?.Time != null && train.TrainTimes[i]?.DepartureTime?.Time != null)
{
double locationCoordinate = _locationCoordinates[train.TrainTimes[i].Location.Id];
tdi.Lines.Add(new LineCoordinates(
new VertexInformation(tdi, train.TrainTimes[i].ArrivalTime.Time, ArrivalDepartureOptions.Arrival, GetXPositionFromTime(train.TrainTimes[i].ArrivalTime.Time),
locationCoordinate),
new VertexInformation(tdi, train.TrainTimes[i].DepartureTime.Time, ArrivalDepartureOptions.Departure, GetXPositionFromTime(train.TrainTimes[i].DepartureTime.Time),
locationCoordinate)));
}
if (i > 0 && train.TrainTimes[i - 1]?.DepartureTime?.Time != null)
{
VertexInformation startVertex =
new VertexInformation(tdi, train.TrainTimes[i - 1].DepartureTime.Time, ArrivalDepartureOptions.Departure,
GetXPositionFromTime(train.TrainTimes[i - 1].DepartureTime.Time), _locationCoordinates[train.TrainTimes[i - 1].Location.Id]);
double endY = _locationCoordinates[train.TrainTimes[i].Location.Id];
if (train.TrainTimes[i]?.ArrivalTime?.Time != null)
{
tdi.Lines.Add(new LineCoordinates(startVertex, new VertexInformation(tdi, train.TrainTimes[i].ArrivalTime.Time, ArrivalDepartureOptions.Arrival,
GetXPositionFromTime(train.TrainTimes[i].ArrivalTime.Time), endY)));
}
else if (train.TrainTimes[i]?.DepartureTime?.Time != null)
{
tdi.Lines.Add(new LineCoordinates(startVertex, new VertexInformation(tdi, train.TrainTimes[i].DepartureTime.Time, ArrivalDepartureOptions.Departure,
GetXPositionFromTime(train.TrainTimes[i].DepartureTime.Time), endY)));
}
}
}
yield return(tdi);
}
}