/// <summary>
/// Calculates heatmap for the given profile.
/// </summary>
public static HeatmapResult CalculateHeatmap(this RouterBase router, Profile profile, RouterPoint origin, int limitInSeconds, int zoom, CancellationToken cancellationToken)
{
if (!router.SupportsAll(profile))
{
throw new ArgumentException(string.Format("Profile {0} not supported.",
profile.FullName));
}
if (profile.Metric != ProfileMetric.TimeInSeconds)
{
throw new ArgumentException(string.Format("Profile {0} not supported, only profiles with metric TimeInSeconds are supported.",
profile.FullName));
}
// get the weight handler.
var weightHandler = router.GetDefaultWeightHandler(profile);
var getFactor = router.GetDefaultGetFactor(profile);
// calculate isochrones.
var isochrone = new TileBasedHeatmapBuilder(router.Db.Network.GeometricGraph,
new Algorithms.Default.Dykstra(router.Db.Network.GeometricGraph.Graph,
weightHandler, null, origin.ToEdgePaths <float>(router.Db, weightHandler, true), limitInSeconds, false), zoom);
isochrone.Run(cancellationToken);
var result = isochrone.Result;
result.MaxMetric = profile.Metric.ToInvariantString();
return(result);
}
/// <summary>
/// Tries to calculate a tree starting at the given location.
/// </summary>
public static Result <Tree> TryCalculateTree(this RouterBase router, Profile profile, RouterPoint origin, float max)
{
if (!router.SupportsAll(profile))
{
return(new Result <Tree>(string.Format("Profile {0} not supported.",
profile.Name)));
}
if (profile.Metric != ProfileMetric.TimeInSeconds)
{
return(new Result <Tree>(string.Format("Profile {0} not supported, only profiles with metric TimeInSeconds are supported.",
profile.Name)));
}
// get the weight handler.
var weightHandler = router.GetDefaultWeightHandler(profile);
var getFactor = router.GetDefaultGetFactor(profile);
// calculate isochrones.
var treeBuilder = new TreeBuilder(
new DykstraEdgeVisitor(router.Db.Network.GeometricGraph,
getFactor, origin.ToEdgePaths <float>(router.Db, weightHandler, true), max));
treeBuilder.Run();
return(new Result <Tree>(treeBuilder.Tree));
}
/// <summary>
/// Calculates isochrones for the given profile based on the given limits.
/// </summary>
public static List <LocalGeo.Polygon> CalculateIsochrones(this RouterBase router, Profile profile, RouterPoint origin, List <float> limits, int zoom = 16)
{
if (profile.Metric != ProfileMetric.TimeInSeconds)
{
throw new ArgumentException(string.Format("Profile {0} not supported, only profiles with metric TimeInSeconds are supported.",
profile.FullName));
}
// get the weight handler.
var weightHandler = router.GetDefaultWeightHandler(profile);
var getFactor = router.GetDefaultGetFactor(profile);
// calculate isochrones.
var isochrone = new TileBasedIsochroneBuilder(router.Db.Network.GeometricGraph,
new Algorithms.Default.Dykstra(router.Db.Network.GeometricGraph.Graph,
weightHandler, null, origin.ToEdgePaths <float>(router.Db, weightHandler, true), limits.Max() * 1.1f, false),
limits, zoom);
isochrone.Run();
return(isochrone.Polygons);
}
/// <summary>
/// Tries to calculate a tree starting at the given location.
/// </summary>
public static Result <Tree> TryCalculateTree(this RouterBase router, Profile profile, RouterPoint origin, float max)
{
if (!router.SupportsAll(profile))
{
return(new Result <Tree>(string.Format("Profile {0} not supported.",
profile.FullName)));
}
if (profile.Metric != ProfileMetric.TimeInSeconds)
{
return(new Result <Tree>(string.Format("Profile {0} not supported, only profiles with metric TimeInSeconds are supported.",
profile.FullName)));
}
// get the weight handler.
var weightHandler = router.GetDefaultWeightHandler(profile);
var getFactor = router.GetDefaultGetFactor(profile);
// calculate isochrones.
TreeBuilder treeBuilder = null;
if (!router.Db.HasComplexRestrictions(profile))
{
treeBuilder = new TreeBuilder(router.Db.Network.GeometricGraph,
new Algorithms.Default.Dykstra(router.Db.Network.GeometricGraph.Graph,
weightHandler, null, origin.ToEdgePaths <float>(router.Db, weightHandler, true), max, router.Closures, false));
}
else
{
treeBuilder = new TreeBuilder(router.Db.Network.GeometricGraph,
new Algorithms.Default.EdgeBased.Dykstra(router.Db.Network.GeometricGraph.Graph,
weightHandler, router.Db.GetGetRestrictions(profile, true), origin.ToEdgePaths <float>(router.Db, weightHandler, true), max, router.Closures, false));
}
treeBuilder.Run();
return(new Result <Tree>(treeBuilder.Tree));
}
/// <summary>
/// Calculates heatmap for the given profile.
/// </summary>
public static HeatmapResult CalculateHeatmap(this RouterBase router, Profile profile, RouterPoint origin, int limitInSeconds, int zoom = 16)
{
if (profile.Metric != ProfileMetric.TimeInSeconds)
{
throw new ArgumentException(string.Format("Profile {0} not supported, only profiles with metric TimeInSeconds are supported.",
profile.Name));
}
// get the weight handler.
var weightHandler = router.GetDefaultWeightHandler(profile);
var getFactor = router.GetDefaultGetFactor(profile);
// calculate isochrones.
var isochrone = new TileBasedHeatmapBuilder(
new DykstraEdgeVisitor(router.Db.Network.GeometricGraph,
getFactor, origin.ToEdgePaths <float>(router.Db, weightHandler, true), limitInSeconds), zoom);
isochrone.Run();
var result = isochrone.Result;
result.MaxMetric = profile.Name;
return(result);
}
/// <summary>
/// Returns the default weight handler.
/// </summary>
public static DefaultWeightHandler DefaultWeightHandler(this IProfileInstance profile, RouterBase router)
{
return(router.GetDefaultWeightHandler(profile));
}