/// <summary>
/// Searches for the closest point on the routing network that's routable for the given profiles.
/// </summary>
/// <returns></returns>
public sealed override Result <RouterPoint> TryResolve(IProfileInstance[] profileInstances, float latitude, float longitude,
Func <RoutingEdge, bool> isBetter, float maxSearchDistance = Constants.SearchDistanceInMeter)
{
try
{
if (!_db.SupportsAll(profileInstances))
{
return(new Result <RouterPoint>("Not all routing profiles are supported.", (message) =>
{
return new Exceptions.ResolveFailedException(message);
}));
}
IResolver resolver = null;
// get is acceptable.
var isAcceptable = this.GetIsAcceptable(profileInstances);
if (this.CreateCustomResolver == null)
{ // just use the default resolver algorithm.
Func <GeometricEdge, bool> isBetterGeometric = null;
if (isBetter != null)
{ // take into account isBetter function.
isBetterGeometric = (edge) =>
{
return(isBetter(_db.Network.GetEdge(edge.Id)));
};
}
// create resolver.
resolver = new ResolveAlgorithm(_db.Network.GeometricGraph, latitude, longitude,
_db.Network.MaxEdgeDistance / 2,
maxSearchDistance, isAcceptable, isBetterGeometric);
}
else
{ // create the custom resolver algorithm.
resolver = this.CreateCustomResolver(latitude, longitude, isAcceptable, isBetter);
}
resolver.Run();
if (!resolver.HasSucceeded)
{ // something went wrong.
return(new Result <RouterPoint>(resolver.ErrorMessage, (message) =>
{
return new Exceptions.ResolveFailedException(message);
}));
}
return(new Result <RouterPoint>(resolver.Result));
}
catch (Exception ex)
{
return(new Result <RouterPoint>(ex.Message, (m) => ex));
}
}
