/// <summary>
/// Copies an NmeaSentence
/// </summary>
/// <param name="sentence">The NmeaSentence to copy</param>
public NmeaSentence(NmeaSentence sentence)
{
this.Sentence = sentence.Sentence;
this.Valid = sentence.Valid;
this.TalkerId = sentence.TalkerId;
this.SentenceId = sentence.SentenceId;
this.HasChecksum = sentence.HasChecksum;
this.Checksum = sentence.Checksum;
this.Fields = sentence.Fields;
this.FieldCount = sentence.FieldCount;
}
/// <summary>
/// Use the factory assigned to the id of the given sentence to construct a
/// concrete implementation of the NmeaSentence class. If no factory is assigned
/// to the sentence id, then the sentence is unknown, and the NmeaUnknownFactory
/// is used to just return the given sentence
/// </summary>
/// <param name="sentence">A generic NmeaSentence to create a concrete implementation
/// of NmeaSentence for</param>
/// <returns>A concrete implementation of NmeaSentence, if the sentence is supported,
/// otherwise the given sentence is returned.</returns>
public static NmeaSentence CreateConcreteSentence(NmeaSentence sentence)
{
if (sentence == null)
{
return null;
}
string sentendId = sentence.SentenceId;
NmeaSentenceFactory factory = GetFactory(sentence);
return factory.Create(sentence);
}
public NmeaGLL(NmeaSentence sentence)
: base(sentence)
{
string lat = sentence.Fields[0];
string latDir = sentence.Fields[1]; // n or s
string lng = sentence.Fields[2];
string lngDir = sentence.Fields[3]; // e or w
string utc = sentence.Fields[4];
string status = sentence.Fields[5];
this.Coordinates = new LatLng(lat, latDir, lng, lngDir, status);
}
public override NmeaSentence Create(NmeaSentence sentence)
{
return new NmeaGLL(sentence);
}
public override NmeaSentence Create(NmeaSentence sentence)
{
return sentence;
}
/// <summary> /// Deriving NmeaSentenceFactory classes must implement this method to /// create the concrete class from the generic class /// </summary> /// <param name="sentence">The generic NmeaSentect to create a concrete class for</param> /// <returns>The concrete NmeaSentence class</returns> public abstract NmeaSentence Create(NmeaSentence sentence);
/// <summary>
/// Get the NmeaSentenceFactory that can create concrete NmeaSentence classes
/// from the given generic NmeaSentence.
/// </summary>
/// <param name="sentence">The generic NmeaSentence class to create a concrete class from</param>
/// <returns>The NmeaSentenceFactory that can create concrete classes from the given
/// generic NmeaSentence</returns>
public static NmeaSentenceFactory GetFactory(NmeaSentence sentence)
{
if (sentence == null)
{
return null;
}
if (string.IsNullOrEmpty(sentence.SentenceId))
{
return _unknownFactory;
}
if (_factories.ContainsKey(sentence.SentenceId))
{
return _factories[sentence.SentenceId];
}
else
{
return _unknownFactory;
}
}
private void _parser_NmeaSentenceReceived(NmeaSentence sentence)
{
NmeaGLL gll = sentence as NmeaGLL;
if (gll != null)
{
CurrentGpsPosition.Value = new LatLng(gll.Coordinates);
Console.WriteLine("GLL: Lat {0}, Lng {1}", gll.Coordinates.Latitude, gll.Coordinates.Longitude);
}
}
