public void CanCalculateLonDistance() { double latCorrection = Math.Cos(lat * (Math.PI / 180)); double dist = GeoTools.LonDistance(lon - 1, lon, lat); Assert.AreEqual(GeoTools.NauticalMile * -60 * latCorrection, dist); double leftTopLon = GeoTools.DistanceToLon(lon, lat, -MapSize / 2); dist = GeoTools.LonDistance(leftTopLon, lon, lat); Assert.AreEqual(-MapSize / 2, dist, 0.01); }
protected virtual void AddSegmentToTrack(Track track, Segment segment) { foreach (Osm.Node node in segment.Nodes) { int x = (int)GeoTools.LonDistance(node.Lon, lon, lat); int y = (int)GeoTools.LatDistance(node.Lat, lat); // do not add segments that are outside the map if (!OnMap(x, y)) { // TODO: try to make outside connection continue; } track.Nodes.Add(CreateNode(track, segment, node, x, y)); } }