private async Task <AdjacencyGraph <NavigationPoint, WeightedEdge <NavigationPoint> > > GenerateCosts(
AdjacencyGraph <NavigationPoint, TransportEdge <NavigationPoint> > segmentedGraph, OptimizationParam optimizer)
{
var weightedGraph = new AdjacencyGraph <NavigationPoint, WeightedEdge <NavigationPoint> >();
var weightingTasks = new List <Task <WeightedEdge <NavigationPoint> > >(
segmentedGraph.Edges.Select((async edge =>
{
var segment = new RoutingSegment(edge.Source,
edge.Target,
edge.NavigationMode);
var costedRoute = await _navigationCostGeneratorService.GetCostForSegment(segment, optimizer);
_internalCache.Add(segment, costedRoute);
return(new WeightedEdge <NavigationPoint>(edge.Source, edge.Target, edge.NavigationMode, costedRoute.cost));
})));
weightedGraph.AddVerticesAndEdgeRange(await Task.WhenAll(weightingTasks));
return(weightedGraph);
}
public Task <RoutingSegmentResult> GetCostForSegment(RoutingSegment segment, OptimizationParam optimizer)
{
var costFunction = _costFunctionFactory.GetCostFunctionByType(segment.SegmentNavigationMode);
return(costFunction.GetCost(segment.SegmentStart, segment.SegmentEnd, optimizer));
}
public void Add(RoutingSegment segment, RoutingSegmentResult result)
{
_internalDictionary[GetKey(segment)] = result;
}
private string GetKey(RoutingSegment segment)
{
return($"{segment.SegmentStart.Latitude};{segment.SegmentStart.Longitude};{segment.SegmentEnd.Latitude};{segment.SegmentEnd.Longitude}");
}
public RoutingSegmentResult GetByKey(RoutingSegment segment)
{
return(_internalDictionary[GetKey(segment)]);
}
