/// <summary>
/// Add one record to the table
/// </summary>
/// <param name="rec"></param>
public string Add(navRec rec)
{
if (rec != null)
{
return(m_db.Add(rec));
}
return("");
}
/// <summary>
/// Returns a subtable with items that match the given criteria
/// </summary>
/// <param name="rangeLimitNm">Range Limit in nm</param>
/// <param name="Lat">Center Lat (decimal)</param>
/// <param name="Lon">Center Lon (decimal)</param>
/// <param name="navTypes">Type of nav items to include</param>
/// <returns>A table with selected records</returns>
public navTable GetSubtable(double rangeLimitNm, double Lat, double Lon, NavTypes[] navTypes = null)
{
if (navTypes == null)
{
navTypes = new NavTypes[] { NavTypes.All }
}
;
var nT = new navTable( );
var myLoc = new LatLon(Lat, Lon);
foreach (var rec in this)
{
var dist = myLoc.DistanceTo(rec.Value.LatLon, ConvConsts.EarthRadiusNm);
if ((dist <= rangeLimitNm) && (rec.Value.IsTypeOf(navTypes)))
{
nT.Add(rec.Value);
}
}
return(nT);
}
}