public GpsTrackStatistics CalculateStatistics ()
{
GpsTrackStatistics stat = new GpsTrackStatistics ();
foreach (TrackPoint w in waypoints)
{
stat.Bounds.ExtendToCover (w.Location);
if (w.Elevation.HasValue)
{
stat.MinElevation = Math.Min (stat.MinElevation, w.Elevation.Value);
stat.MaxElevation = Math.Min (stat.MaxElevation, w.Elevation.Value);
}
if (w.Time.HasValue)
{
stat.StartTime = stat.StartTime <= w.Time.Value ? stat.StartTime : w.Time.Value;
stat.EndTime = stat.EndTime >= w.Time.Value ? stat.EndTime : w.Time.Value;
}
}
foreach (Track r in routes)
{
GpsTrackStatistics childStat = GpsUtilities.CalculateTrackStatistics (r);
stat.Union (childStat);
}
foreach (Track t in tracks)
{
GpsTrackStatistics childStat = GpsUtilities.CalculateTrackStatistics (t);
stat.Union (childStat);
}
return stat;
}
private async Task <PositionRecord> CreateOrUpdatePositionRecord()
{
var location = GpsUtilities.GetLocation();
var memberId = _members.Random().Id;
var record = await _repository.GetById <PositionRecord>(memberId);
if (null == record)
{
record = new PositionRecord(memberId, location.Latitude, location.Longitude);
_loggerFactory.LogInformation($"New Position Record [{memberId}] [{location.Longitude}/{location.Latitude}]");
}
else
{
record.Update(new PositionRecordUpdatedEvent(record.MemberId, location.Latitude, location.Longitude));
_loggerFactory.LogInformation($"Update Position Record [{memberId}] [{location.Longitude}/{location.Latitude}]");
}
return(record);
}
public void Start()
{
_cache.GetOutputStream().Subscribe(obs =>
{
if (obs.PositionRecords.Count > 0)
{
foreach (var record in obs.PositionRecords)
{
var memberOne = record.MemberId;
var memberOnePosition = _cache.CacheState.State[memberOne];
lock (_gateKeeper)
{
_proximities.RemoveAll((proximity) => proximity.HasMember(memberOne));
foreach (var member in _cache.CacheState.State)
{
if (member.Key == record.MemberId)
{
continue;
}
var memberTwo = member.Key;
var memberTwoPosition = member.Value;
var proximity = GpsUtilities.DistanceBetweenPoints(memberOnePosition, memberTwoPosition);
if (proximity < proximityThreshold)
{
_proximities.Add(new ProximityEvent(memberOne, memberTwo, proximity));
_logger.LogInformation($"Proximity - [{memberOne}] [{memberTwo}] | {proximity}");
}
}
}
}
}
});
}