110 lines
3.9 KiB
C#
110 lines
3.9 KiB
C#
using System;
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namespace GpsClient2.NmeaMessages {
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public class GpggaMessage : NmeaMessage {
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#region Description
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// $GPGGA,123519,4807.038,N,01131.000,E,1,08,0.9,545.4,M,46.9,M,,*47
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// Where:
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// GGA Global Positioning System Fix Data
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// 123519 Fix taken at 12:35:19 UTC
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// 4807.038,N Latitude 48 deg 07.038' N
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// 01131.000,E Longitude 11 deg 31.000' E
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// 1 Fix quality: 0 = invalid
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// 1 = GPS fix(SPS)
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// 2 = DGPS fix
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// 3 = PPS fix
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// 4 = Real Time Kinematic
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// 5 = Float RTK
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// 6 = estimated(dead reckoning) (2.3 feature)
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// 7 = Manual input mode
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// 8 = Simulation mode
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// 08 Number of satellites being tracked
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// 0.9 Horizontal dilution of position
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// 545.4, M Altitude, Meters, above mean sea level
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// 46.9, M Height of geoid(mean sea level) above WGS84
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// ellipsoid
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// (empty field) time in seconds since last DGPS update
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// (empty field) DGPS station ID number
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// *47 the checksum data, always begins with*
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#endregion
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#region Properties
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/// <summary>
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/// Fix taken
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/// </summary>
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public TimeSpan FixTime { get; set; }
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public double Latitude { get; set; }
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public double Longitude { get; set; }
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public GpsFixQuality FixQuality { get; set; }
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public int NumberOfSatellites { get; set; }
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/// <summary>
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/// Horizontal dilution of position
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/// </summary>
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public float Hdop { get; set; }
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/// <summary>
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/// Altitude, Meters, above mean sea level
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/// </summary>
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public float Altitude { get; set; }
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/// <summary>
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/// Altitude units ('M' for Meters)
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/// </summary>
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public string AltitudeUnits { get; set; }
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/// <summary>
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/// Height of geoid (mean sea level) above WGS84
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/// </summary>
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public float HeightOfGeoId { get; set; }
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public string HeightOfGeoIdUnits { get; set; }
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/// <summary>
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/// Time in seconds since last DGPS update
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/// </summary>
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public int TimeSpanSinceDgpsUpdate { get; set; }
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/// <summary>
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/// DGPS station ID number
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/// </summary>
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public int? DgpsStationId { get; set; }
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#endregion
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#region Message parsing
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public override void Parse(string[] messageParts) {
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if (messageParts == null || messageParts.Length < 14) {
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throw new ArgumentException("Invalid GPGGA message");
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}
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FixTime = messageParts[1].ToTimeSpan();
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Latitude = messageParts[2].ToCoordinates(messageParts[3], CoordinateType.Latitude);
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Longitude = messageParts[4].ToCoordinates(messageParts[5], CoordinateType.Longitude);
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FixQuality = (GpsFixQuality)Enum.Parse(typeof(GpsFixQuality), messageParts[6]);
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NumberOfSatellites = messageParts[7].ToInteger();
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Hdop = messageParts[8].ToFloat();
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Altitude = messageParts[9].ToFloat();
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AltitudeUnits = messageParts[10];
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HeightOfGeoId = messageParts[11].ToFloat();
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HeightOfGeoIdUnits = messageParts[12];
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TimeSpanSinceDgpsUpdate = messageParts[13].ToInteger();
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DgpsStationId = messageParts[14].ToInteger();
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}
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#endregion
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public override string ToString() {
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return $"Latitude {Latitude} - Longitude {Longitude} - Hoogte {Altitude}";
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}
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}
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}
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