/// <summary>
/// Initializes object using GTFS data feed.
/// </summary>
/// <param name="stops">Stops.</param>
public GtfsFootpaths(Stops stops)
{
FootpathsExtensions.RecomputeAverageLatitudeAndLongitudeLength(stops);
foreach (var A in stops)
{
foreach (var B in stops)
{
int walkingTime = A.Value.GetWalkingTime(B.Value);
if (walkingTime < GlobalData.MaximalDurationOfTransfer && walkingTime > 0) // We will consider only the footpaths with walking time lower than 10 mins.
{
// Lets check if it is a transfer from surface to underground transport. If so, triple the walking time.
if (A.Value.ThroughgoingRoutes.Count != 0 && B.Value.ThroughgoingRoutes.Count != 0 && (
(A.Value.ThroughgoingRoutes[0].Type == RoutesInfo.RouteInfo.RouteType.Subway && B.Value.ThroughgoingRoutes[0].Type != RoutesInfo.RouteInfo.RouteType.Subway) ||
(A.Value.ThroughgoingRoutes[0].Type != RoutesInfo.RouteInfo.RouteType.Subway && B.Value.ThroughgoingRoutes[0].Type == RoutesInfo.RouteInfo.RouteType.Subway)))
{
if (GlobalData.CoefficientUndergroundToSurfaceTransfer * walkingTime < GlobalData.MaximalDurationOfTransfer)
{
list.Add(new Footpath((int)GlobalData.CoefficientUndergroundToSurfaceTransfer * walkingTime, A.Value, B.Value));
}
}
else if (A.Value.ThroughgoingRoutes.Count != 0 && B.Value.ThroughgoingRoutes.Count != 0 &&
A.Value.ThroughgoingRoutes[0].Type == RoutesInfo.RouteInfo.RouteType.Subway && B.Value.ThroughgoingRoutes[0].Type == RoutesInfo.RouteInfo.RouteType.Subway)
{
// Transfer from subway to subway.
if (A.Value.ThroughgoingRoutes[0].ID == B.Value.ThroughgoingRoutes[0].ID)
{
// Transfer to same line usually take less time, multiply it by 0.5 by default. This is because distance is measured from the beginning of the platfrom.
list.Add(new Footpath((int)(GlobalData.CoefficientUndergroundTransfersWithinSameLine * walkingTime), A.Value, B.Value));
}
else
{
// Transfer between two lines usually take more time, multiply it by 2 by default.
list.Add(new Footpath((int)(GlobalData.CoefficientUndergroundTransfersWithinDifferentLines * walkingTime), A.Value, B.Value));
}
}
else
{
list.Add(new Footpath(walkingTime, A.Value, B.Value));
}
}
}
}
}
/// <summary>
/// Merges two collections into one.
/// </summary>
/// <param name="other">The other collection that should be merged.</param>
public void MergeCollections(Footpaths other, Stops stopsA, Stops stopsB)
{
FootpathsExtensions.RecomputeAverageLatitudeAndLongitudeLength(stopsA, stopsB);
foreach (var footpath in other)
{
list.Add(footpath);
}
other = null;
foreach (var A in stopsA)
{
foreach (var B in stopsB)
{
int walkingTime = A.Value.GetWalkingTime(B.Value);
if (walkingTime < GlobalData.MaximalDurationOfTransfer * 1.5 && walkingTime > 0) // While moving to another data feed, will consider only the footpaths with walking time lower than 15 mins by default.
{
list.Add(new Footpath(walkingTime, A.Value, B.Value));
}
}
}
}
