private static void ParseTrack(GPXLib gpx, JsonValue elem, int trackNum)
{
Trkseg segment = new Trkseg();
foreach (JsonValue node in elem["nodes"])
{
Wpt wpt = new Wpt
{
Lat = node["x"],
Lon = node["y"],
Ele = node["z"],
EleSpecified = node.ContainsKey("z") && node["z"] != 0,
Sat = Convert.ToString((int)node["sat_qty"]),
Time = Date.DateTimeFromUnixTimestampSeconds(node["t"]),
TimeSpecified = node.ContainsKey("t")
};
segment.TrkptList.Add(wpt);
TrackMinMax(wpt.Lat, wpt.Lon);
}
Trk track = new Trk(String.Format("Track {0}", trackNum))
{
Number = trackNum.ToString()
};
track.TrksegList.Add(segment);
gpx.TrkList.Add(track);
}
private static void WritePointsAsGpx(string outputPath, List <Position> sortedPoints)
{
var points = sortedPoints.Select(p => new Wpt((decimal)p.Latitude, (decimal)p.Longitude)
{
Time = p.Time.UtcDateTime, TimeSpecified = true
}).ToList();
if (!points.Any())
{
using (var se = new StreamWriter(System.Console.OpenStandardError()))
{
se.WriteLine("Couldn't find any pictures with GPS coordinates");
return;
}
}
var gpx = new GPXLib();
int trackIndex = 0;
DateTime lastPointTime = points[trackIndex].Time;
foreach (var point in points)
{
if (point.Time.Subtract(lastPointTime).TotalHours > 5)
{
trackIndex++;
}
lastPointTime = point.Time;
gpx.AddTrackPoint($"maintrack{trackIndex}", 0, point);
}
gpx.SaveToFile(Path.Combine(outputPath, "track.gpx"));
File.WriteAllText(Path.Combine(outputPath, "track.json"), JsonConvert.SerializeObject(sortedPoints));
}
private static void ParseTimezone(GPXLib gpx, JsonValue elem)
{
string displayName = "Local Time Zone";
string standardName = "Local Time";
TimeSpan offset = TimeSpan.FromSeconds(elem["time_shift"]);
TimeZoneInfo local = TimeZoneInfo.CreateCustomTimeZone(standardName, offset, displayName, standardName);
Date.TimeZone = local;
//TODO save this timezone somewhere in gpx file
}
private static void ParseWaypoint(GPXLib gpx, JsonValue elem, int waypointNum)
{
Wpt waypoint = new Wpt
{
Name = String.Format("Waypoint {0}", waypointNum),
Lat = elem["x"],
Lon = elem["y"],
Ele = elem["z"],
EleSpecified = elem.ContainsKey("z") && elem["z"] != 0,
Sat = Convert.ToString((int)elem["sat_qty"]),
Time = Date.DateTimeFromUnixTimestampSeconds(elem["t"]),
TimeSpecified = elem.ContainsKey("t")
};
gpx.WptList.Add(waypoint);
TrackMinMax(waypoint.Lat, waypoint.Lon);
}
private void TestingGpxLib()
{
var gpxLib = new GPXLib();
gpxLib.LoadFromFile(Filename);
Console.WriteLine("Loaded File");
Console.WriteLine("===== Route Data =====");
foreach (var route in gpxLib.RteList)
{
// ges all route data
Console.WriteLine($"Route information for {route.Name}");
}
Console.WriteLine("===== Waypoint Data =====");
foreach (var waypoint in gpxLib.WptList)
{
Console.WriteLine($"WAypoint information for {waypoint.Name}");
}
// Sample file only has Trackinformation
Console.WriteLine("===== Track Data =====");
foreach (var track in gpxLib.TrkList)
{
Console.WriteLine($"Track information for {track.Name}");
foreach (var segment in track.TrksegList)
{
Console.WriteLine($"Track information for segment.");
foreach (var point in segment.TrkptList)
{
// elevation will default to 0 is not provided
Console.WriteLine($"\t{point.Lat}\t{point.Lon}\t{point.Ele}");
}
}
}
}
static void Main(string[] args)
{
if (args.Length > 0 && File.Exists(args[0]))
{
var path = args[0];
using (StreamReader sr = new StreamReader(path))
{
var json = JsonValue.Parse(sr.ReadToEnd());
GPXLib gpx = new GPXLib();
var meta = json["meta"];
var data = json["data"];
var trackNum = 0;
var waypointNum = 0;
foreach (JsonValue elem in data)
{
string type = elem["type"];
switch (type)
{
case "TZ":
ParseTimezone(gpx, elem);
break;
case "TRACK":
ParseTrack(gpx, elem, ++trackNum);
break;
case "NO_SIGNAL":
ParseNoSignal(gpx, elem);
break;
case "WAYPOINT":
ParseWaypoint(gpx, elem, ++waypointNum);
break;
case "STOP":
ParseStop(gpx, elem);
break;
default:
throw new NotImplementedException();
}
}
gpx.Metadata.Name = "Starline GPX Track";
var startDate = Date.DateTimeFromUnixTimestampSeconds(Date.minSeconds);
var endDate = Date.DateTimeFromUnixTimestampSeconds(Date.maxSeconds);
gpx.Metadata.Desc = String.Format("Track from {0} to {1}", startDate, endDate);
gpx.Creator = "starlineonline2gpx converter";
gpx.Metadata.Bounds.Maxlat = Maxlat;
gpx.Metadata.Bounds.Minlat = Minlat;
gpx.Metadata.Bounds.Maxlon = Maxlon;
gpx.Metadata.Bounds.Minlon = Minlon;
gpx.Metadata.Time = startDate;
gpx.Metadata.TimeSpecified = true;
var author = new Person();
author.Link.Href = @"https://github.com/DJm00n/starlineonline2gpx";
author.Email.Id = @"dimitriy.ryazantcev";
author.Email.Domain = "gmail.com";
author.Name = @"Dimitriy Ryazantcev";
gpx.Metadata.Author = author;
gpx.SaveToFile(Path.ChangeExtension(path, "gpx"));
}
}
}
private static void ParseStop(GPXLib gpx, JsonValue elem)
{
//throw new NotImplementedException();
}
