Added $PGRMZ

src/NmeaParser.Shared/Nmea/Gps/Garmin/PGRMZ.cs

@@ -0,0 +1,79 @@
+//
+// Copyright (c) 2014 Morten Nielsen
+//
+// Licensed under the Microsoft Public License (Ms-PL) (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://opensource.org/licenses/Ms-PL.html
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace NmeaParser.Nmea.Gps.Garmin
+{
+	/// <summary>
+	/// Altitude Information
+	/// </summary>
+	[NmeaMessageType(Type = "PGRMZ")]
+	public class Pgrmz : NmeaMessage
+	{
+		public enum AltitudeUnit
+		{
+			Unknown,
+			Feet
+		}
+		public enum PositionFixDimension : int
+		{
+			/// <summary>
+			/// No fix
+			/// </summary>
+			None = 0,
+			/// <summary>
+			/// 2D Fix
+			/// </summary>
+			UserAltitude = 2,
+			/// <summary>
+			/// 3D Fix
+			/// </summary>
+			GpsAltitude = 3
+		}
+		protected override void LoadMessage(string[] message)
+		{
+			if (message[0].Length > 0)
+				Altitude = double.Parse(message[0], CultureInfo.InvariantCulture);
+			else
+				Altitude = double.NaN;
+			Unit = message[1] == "f" ? AltitudeUnit.Feet : AltitudeUnit.Unknown;
+			int dim = -1;
+			if (message[2].Length == 1 && int.TryParse(message[2], out dim))
+				FixDimension = (PositionFixDimension)dim;
+		}
+
+		/// <summary>
+		/// Estimated horizontal position error in meters (HPE)
+		/// </summary>
+		public double Altitude { get; private set; }
+
+		/// <summary>
+		/// Horizontal Error unit ('M' for Meters)
+		/// </summary>
+		public AltitudeUnit Unit { get; private set; }
+
+		/// <summary>
+		/// Estimated vertical position error in meters (VPE)
+		/// </summary>
+		public PositionFixDimension FixDimension { get; private set; }
+	}
+}