public override int Build()
{
Tracks.Clear();
Track track = new Track(++trackId, Tracktype.Airline);
Node node;
Osm.Segment segment = new Osm.Segment();
segment.Tags.Add("ref", "North/South connection");
Osm.Node osmNode;
segment.Id = 1;
// make a track with segment size of 96 meter. (180 segments North/South)
for (int y = -MapSize / 2; y <= MapSize / 2; y += 96)
{
osmNode = new Osm.Node();
osmNode.Lat = GeoTools.DistanceToLat(lat, y);
osmNode.Lon = lon;
node = CreateNode(track, segment, osmNode, 0, y);
track.Nodes.Add(node);
}
Tracks.Add(track);
return(0);
}
public TrackCollection(double lat, double lon)
{
this.lat = lat;
this.lon = lon;
leftTopLat = GeoTools.DistanceToLat(lat, -MapSize / 2);
leftTopLon = GeoTools.DistanceToLon(lon, lat, -MapSize / 2);
rightBottomLat = GeoTools.DistanceToLat(lat, MapSize / 2);
rightBottomLon = GeoTools.DistanceToLon(lon, lat, MapSize / 2);
}
public void CanCalculateLatDistance()
{
double dist = GeoTools.LatDistance(lat - 1, lat);
Assert.AreEqual(GeoTools.NauticalMile * -60, dist);
dist = GeoTools.LatDistance(lat + 1, lat);
Assert.AreEqual(GeoTools.NauticalMile * 60, dist);
double leftTopLat = GeoTools.DistanceToLat(lat, -MapSize / 2);
dist = GeoTools.LatDistance(leftTopLat, lat);
Assert.AreEqual(-MapSize / 2, dist, 0.01);
}
public void CanCalculateDistance()
{
double leftTopLat = GeoTools.DistanceToLat(lat, -MapSize / 2);
double leftTopLon = GeoTools.DistanceToLon(lon, lat, -MapSize / 2);
double rightBottomLat = GeoTools.DistanceToLat(lat, MapSize / 2);
double rightBottomLon = GeoTools.DistanceToLon(lon, lat, MapSize / 2);
double distance = GeoTools.Distance(leftTopLat, leftTopLon, rightBottomLat, rightBottomLon);
double mapHypothenysa = Math.Sqrt(2 * Math.Pow(MapSize, 2));
Assert.AreEqual(24437.61f, mapHypothenysa, 0.01);
Assert.AreEqual(distance, mapHypothenysa, 0.1);
}
public void CanCalculateDistanceFromLat()
{
double calcLat = GeoTools.DistanceToLat(lat, 60 * GeoTools.NauticalMile);
Assert.AreEqual(lat + 1, calcLat, 0.01);
}
