Add project files.

NmeaMessages/GpggaMessage.cs

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