Question on setting road speeds dynamically in C#

[AHunt68]

The documentation states that a C# profile can be created instead of using a .lua file, but no example is given. Can anyone point me at a working example?

I need to be able to calculate times/distances between points with user-defined road speeds, so a .lua file is impractical. Being able to set a routing profile in code is what I need, but I cannot find any examples of how this is done.

RouterDb routerDb = null; using (var stream = new FileInfo(@"great-britain.routerdb").OpenRead()) { routerDb = RouterDb.Deserialize(stream); } var router = new Router(routerDb);

        // get a profile.
        var fastcar = Vehicle.Car.Fastest(); // the default OSM car profile.
        var directcar = Vehicle.Car.Shortest(); // the default OSM car profile.

        // HOW DO I SET ROAD SPEEDS DYNAMICALLY ON MY PROFILES?
       // what goes here...

        // create a routerpoint from a location.
        // snaps the given location to the nearest routable edge.
        var start = router.Resolve(fastcar, 51.284043f, 0.516308f);
        var end = router.Resolve(fastcar, 51.277406f, 0.492423f);

        // calculate a route.
        var fast = router.Calculate(fastcar, start, end);

        Console.WriteLine(string.Format("Fastest: distance {0:0.00} miles, taking {1:0.00} mins", fast.TotalDistance / 1609.34, (fast.TotalTime / 60)));

        start = router.Resolve(directcar, 51.284043f, 0.516308f);
        end = router.Resolve(directcar, 51.277406f, 0.492423f);
        var shortr = router.Calculate(directcar, start, end);

        Console.WriteLine(string.Format("Shortest: distance {0:0.00} miles, taking {1:0.00} mins", shortr.TotalDistance / 1609.34, (shortr.TotalTime / 60)));

        // write router to file
        using (var writer = new StreamWriter(@"short-route.geojson"))
        {
            shortr.WriteGeoJson(writer);
        }`