/// <summary>
/// Format this object to a Degrees-Minutes-Seconds string.
/// </summary>
/// <param name="format"></param>
/// <param name="arg"></param>
/// <param name="formatProvider"></param>
/// <returns></returns>
protected override string DoFormat(string format, object arg, IFormatProvider formatProvider)
{
DegreeMinuteSecond dms = null;
if (!DegreeMinuteSecondFormatInfo.TryParse(arg, out dms))
{
// Provide default formatting if the argument is not as expected (Double or DegreeMinuteSecond).
return(FormatUnexpectedDataType(format, arg));
}
var bearing = base.DoFormat(format, dms.Bearing, formatProvider);
// Just in case rounding took us up to 360°!
return(bearing == null ? "–" : bearing.Replace("360", "0"));
}
/// <summary>
/// Format this object to a Milliradian (NATO) string.
/// </summary>
/// <param name="format"></param>
/// <param name="arg"></param>
/// <param name="formatProvider"></param>
/// <returns></returns>
protected override string DoFormat(string format, object arg, IFormatProvider formatProvider)
{
DegreeMinuteSecond dms = null;
if (!DegreeMinuteSecondFormatInfo.TryParse(arg, out dms))
{
// Provide default formatting if the argument is not as expected (Double or DegreeMinuteSecond).
return(FormatUnexpectedDataType(format, arg));
}
UpdateScaleFromFormatString(format);
var mils = dms.Bearing * (6400 / 360);
var m = Math.Round(mils, base.Scale);
return(string.Format("{0}{1}{2}", m, base.Separator, this.MilsSymbol));
}
/// <summary>
/// Format this object to a Degrees-Minutes-Seconds string.
/// </summary>
/// <param name="format"></param>
/// <param name="arg"></param>
/// <param name="formatProvider"></param>
/// <returns></returns>
protected override string DoFormat(string format, object arg, IFormatProvider formatProvider)
{
DegreeMinuteSecond dms = null;
if (!DegreeMinuteSecondFormatInfo.TryParse(arg, out dms))
{
// Provide default formatting if the argument is not as expected (Double or DegreeMinuteSecond).
return(FormatUnexpectedDataType(format, arg));
}
DegreeMinuteSecond degreeMinuteSecond = dms.Degrees < 0 ? new DegreeMinuteSecond(Math.Abs(dms.Degrees)) : dms;
string latitude = base.DoFormat(format, degreeMinuteSecond, formatProvider);
string cardinal = dms.Degrees < 0 ? Direction.South : Direction.North;
return(latitude == null ? "–" : latitude + base.Separator + cardinal);
}
/// <summary>
/// Format this object to a Compass Point string.
/// </summary>
/// <param name="format"></param>
/// <param name="arg"></param>
/// <param name="formatProvider"></param>
/// <returns></returns>
protected override string DoFormat(string format, object arg, IFormatProvider formatProvider)
{
DegreeMinuteSecond dms = null;
if (!DegreeMinuteSecondFormatInfo.TryParse(arg, out dms))
{
// Provide default formatting if the argument is not as expected (Double or DegreeMinuteSecond).
return(FormatUnexpectedDataType(format, arg));
}
// No of compass points at required precision (1=>4, 2=>8, 3=>16).
var n = 4 * Math.Pow(2, _precision - 1);
double cardinalIndex = Math.Round(dms.Bearing * n / 360) % n * 16 / n;
var cardinal = Cardinals[(int)cardinalIndex];
return(cardinal);
}
/// <summary>
/// Format this object to a Degrees-Minutes-Seconds string.
/// </summary>
/// <param name="format"></param>
/// <param name="arg"></param>
/// <param name="formatProvider"></param>
/// <returns></returns>
protected virtual string DoFormat(string format, object arg, IFormatProvider formatProvider)
{
if (arg == null)
{
throw new ArgumentNullException(nameof(arg), "The argument cannot be null.");
}
DegreeMinuteSecond dms = null;
if (!DegreeMinuteSecondFormatInfo.TryParse(arg, out dms))
{
// Provide default formatting if the argument is not as expected (Double or DegreeMinuteSecond).
return(FormatUnexpectedDataType(format, arg));
}
// Adjust for missing format.
#pragma warning disable S3900
string f = string.Empty;
if (string.IsNullOrWhiteSpace(format))
{
// Default to everything.
f = "DMS";
}
else
{
f = format.ToUpper(System.Globalization.CultureInfo.CurrentCulture);
}
#pragma warning restore S3900
UpdateScaleFromFormatString(format);
string secondsFormat = "S";
string minutesFormat = "M";
if (f.Contains(secondsFormat))
{
return(ToDegreeMinuteSecond(dms));
}
else if (f.Contains(minutesFormat))
{
return(ToDegreeMinute(dms));
}
else
{
return(ToDegree(dms));
}
}
