/// <summary>
/// Checks if the given point is connected to the rest of the network. Use this to detect points on routing islands.
/// </summary>
/// <param name="radius">The radius metric, that can be a distance, time or custom metric.</param>
/// <returns></returns>
public sealed override Result <bool> TryCheckConnectivity(IProfileInstance profileInstance, RouterPoint point, float radius, bool?forward = null)
{
try
{
if (!_db.Supports(profileInstance.Profile))
{
return(new Result <bool>("Routing profile is not supported.", (message) =>
{
return new Exception(message);
}));
}
// get the weight handler.
var weightHandler = this.GetDefaultWeightHandler(profileInstance);
var checkForward = forward == null || forward.Value;
var checkBackward = forward == null || !forward.Value;
if (checkForward)
{ // build and run forward dykstra search.
var dykstra = new Dykstra(_db.Network.GeometricGraph.Graph, weightHandler, null,
point.ToEdgePaths(_db, weightHandler, true), radius, false);
dykstra.Run();
if (!dykstra.HasSucceeded ||
!dykstra.MaxReached)
{ // something went wrong or max not reached.
return(new Result <bool>(false));
}
}
if (checkBackward)
{ // build and run backward dykstra search.
var dykstra = new Dykstra(_db.Network.GeometricGraph.Graph, weightHandler, null,
point.ToEdgePaths(_db, weightHandler, false), radius, true);
dykstra.Run();
if (!dykstra.HasSucceeded ||
!dykstra.MaxReached)
{ // something went wrong or max not reached.
return(new Result <bool>(false));
}
}
return(new Result <bool>(true));
}
catch (Exception ex)
{
return(new Result <bool>(ex.Message, (m) => ex));
}
}
/// <summary>
/// Returns true if all of the given profiles are supported.
/// </summary>
/// <returns></returns>
public static bool SupportsAll(this RouterDb db, params Profiles.Profile[] profiles)
{
for (var i = 0; i < profiles.Length; i++)
{
if (!db.Supports(profiles[i]))
{
return(false);
}
}
return(true);
}
/// <summary>
/// Checks if the given point is connected to the rest of the network. Use this to detect points on routing islands.
/// </summary>
/// <returns></returns>
public sealed override Result <bool> TryCheckConnectivity(IProfileInstance profileInstance, RouterPoint point, float radiusInMeters)
{
if (!_db.Supports(profileInstance.Profile))
{
return(new Result <bool>("Routing profile is not supported.", (message) =>
{
return new Exception(message);
}));
}
// get the weight handler.
var weightHandler = this.GetDefaultWeightHandler(profileInstance);
// build and run dykstra search.
var dykstra = new Dykstra(_db.Network.GeometricGraph.Graph, weightHandler, null,
point.ToEdgePaths(_db, weightHandler, true), radiusInMeters, false);
dykstra.Run();
if (!dykstra.HasSucceeded)
{ // something went wrong.
return(new Result <bool>(false));
}
return(new Result <bool>(dykstra.MaxReached));
}
/// <summary>
/// Returns true if the given profile is supported.
/// </summary>
public static bool Supports(this RouterDb db, Profiles.Profile profile)
{
return(db.Supports(profile.Parent.Name));
}
/// <summary>
/// Checks if the given point is connected to the rest of the network. Use this to detect points on routing islands.
/// </summary>
/// <param name="radiusInMeter">The radius metric, that's always a distance in meters.</param>
/// <returns></returns>
public sealed override Result <bool> TryCheckConnectivity(IProfileInstance profileInstance, RouterPoint point, float radiusInMeter, bool?forward = null)
{
try
{
if (!_db.Supports(profileInstance.Profile))
{
return(new Result <bool>("Routing profile is not supported.", (message) =>
{
return new Exception(message);
}));
}
// get the weight handler.
var getGetFactor = this.GetDefaultGetFactor(profileInstance);
Func <ushort, Factor> getShortestFactor = (p) =>
{ // only keep directional information, get factor to 1 for distance metrics only.
var factor = getGetFactor(p);
if (factor.Value == 0)
{
return(new Factor()
{
Direction = factor.Direction,
Value = 0
});
}
return(new Factor()
{
Direction = factor.Direction,
Value = 1
});
};
var weightHandler = new DefaultWeightHandler(getShortestFactor);
var checkForward = forward == null || forward.Value;
var checkBackward = forward == null || !forward.Value;
if (checkForward)
{ // build and run forward dykstra search.
var dykstra = new Algorithms.Default.EdgeBased.Dykstra(_db.Network.GeometricGraph.Graph, weightHandler,
_db.GetGetRestrictions(profileInstance.Profile, true), point.ToEdgePaths(_db, weightHandler, true), radiusInMeter, false);
dykstra.Run();
if (!dykstra.HasSucceeded ||
!dykstra.MaxReached)
{ // something went wrong or max not reached.
return(new Result <bool>(false));
}
}
if (checkBackward)
{ // build and run backward dykstra search.
var dykstra = new Algorithms.Default.EdgeBased.Dykstra(_db.Network.GeometricGraph.Graph, weightHandler,
_db.GetGetRestrictions(profileInstance.Profile, false), point.ToEdgePaths(_db, weightHandler, false), radiusInMeter, true);
dykstra.Run();
if (!dykstra.HasSucceeded ||
!dykstra.MaxReached)
{ // something went wrong or max not reached.
return(new Result <bool>(false));
}
}
return(new Result <bool>(true));
}
catch (Exception ex)
{
return(new Result <bool>(ex.Message, (m) => ex));
}
}
