//=========================================================================
//=========================================================================
/// <summary>
/// Raises our gps data received event in a thread safe way
/// </summary>
public void RaiseGpsDataReceivedEventArgs()
{
//---- raise the event
if (this.GpsDataRecieved != null)
{
this.GpsDataRecieved(this, new GpsDataReceivedEventArgs(GpsReading.Parse(this._nmeaSentenceBuffer)));
}
}
protected virtual GpsInfo ParseGpsInfo(string[] commands)
{
var reading = GpsReading.Parse(commands);
if (reading.FixedGpsData == null)
{
return(null);
}
var gpsInfo = new GpsInfo();
if (reading.FixedGpsData.Elevation != null)
{
gpsInfo.AltitudeMeters = Convert.ToDouble(reading.FixedGpsData.Elevation.Value);
}
if (reading.FixedGpsData.Position != null)
{
gpsInfo.LatitudeDegrees = Convert.ToDouble(reading.FixedGpsData.Position.Latitude.Degrees);
gpsInfo.LongitudeDegrees = Convert.ToDouble(reading.FixedGpsData.Position.Longitude.Degrees);
}
//采用gps本身提供的日期，20160509
gpsInfo.UtcTime = reading.Summary.UtcDateTime;
//gpsInfo.UtcTime = reading.FixedGpsData.UtcTime;
gpsInfo.LocalTime = gpsInfo.UtcTime.ToLocalTime();
gpsInfo.FixedSatelliteCount = reading.FixedGpsData.NumberOfSatelitesInUse;
gpsInfo.TrackedSatelliteCount = gpsInfo.FixedSatelliteCount;
gpsInfo.FixQuality = reading.FixedGpsData.Quality;
if (reading.GroundVector != null && reading.GroundVector.GroundSpeedInKmh != 0)
{
gpsInfo.SpeedInKmh = reading.GroundVector.GroundSpeedInKmh;
}
if (reading.Summary != null && reading.Summary.GroundSpeed != 0)
{
var summary = reading.Summary;
gpsInfo.SpeedInKmh = Convert.ToDouble(summary.GroundSpeed);
gpsInfo.AngleDegrees = Convert.ToDouble(summary.Heading);
}
if (reading.Heading != null)
{
//20160111，使用高精度版本
tempVersion = true;
gpsInfo.AngleDegrees = reading.Heading.BearingDegrees;
//高精度和普通科三gps角度会差180度，如：高精度3°，普通184°
//gpsInfo.AngleDegrees = gpsInfo.AngleDegrees + 180;
//if (gpsInfo.AngleDegrees > 360)
// gpsInfo.AngleDegrees = gpsInfo.AngleDegrees - 360;
gpsInfo.FixedSatelliteCount = reading.Heading.SatellitesInSolution;
gpsInfo.TrackedSatelliteCount = reading.Heading.SatellitesInTrack;
//记录上一次角度
lastAngleDegrees = gpsInfo.AngleDegrees;
}
if (tempVersion)
{
//20160111，使用高精度版本,(有时Heading为空的情况)
gpsInfo.HighPrecisionVersion = true;
if (reading.Heading == null)
{
gpsInfo.AngleDegrees = lastAngleDegrees;
}
}
return(gpsInfo);
}
