protected static bool TryParseLength(string text, UnitSystem unitSystem, out double meters)
{
Match m = lengthRe.Match(text);
if (!m.Success || !double.TryParse(m.Groups["number"].Value, out meters))
{
meters = 0;
return(false);
}
else
{
LengthUnit unit;
switch (m.Groups["unit"].Value.ToLowerInvariant())
{
case "ft": unit = LengthUnit.Foot; break;
case "km": unit = LengthUnit.Kilometer; break;
case "kyd": unit = LengthUnit.Kiloyard; break;
case "m": unit = LengthUnit.Meter; break;
case "mi": unit = LengthUnit.Mile; break;
case "nm":
case "nmi": unit = LengthUnit.NauticalMile; break;
case "yd": unit = LengthUnit.Yard; break;
default:
switch (unitSystem)
{
case UnitSystem.Imperial: unit = LengthUnit.Mile; break;
case UnitSystem.Metric: unit = LengthUnit.Kilometer; break;
case UnitSystem.NauticalImperial:
case UnitSystem.NauticalMetric: unit = LengthUnit.NauticalMile; break;
default: unit = LengthUnit.Meter; break;
}
break;
}
meters = ManeuveringBoard.ConvertFromUnit(meters, unit);
return(true);
}
}
protected static bool TryParseSpeed(string text, UnitSystem unitSystem, out double metersPerSecond)
{
Match m = speedRe.Match(text);
if (!m.Success || !double.TryParse(m.Groups["number"].Value, out metersPerSecond))
{
metersPerSecond = 0;
return(false);
}
else
{
SpeedUnit unit;
switch (m.Groups["unit"].Value.ToLowerInvariant())
{
case "kn":
case "kt":
case "kts": unit = SpeedUnit.Knots; break;
case "kph": unit = SpeedUnit.KilometersPerHour; break;
case "mph": unit = SpeedUnit.MilesPerHour; break;
case "mps":
case "m/s": unit = SpeedUnit.MetersPerSecond; break;
default:
switch (unitSystem)
{
case UnitSystem.Imperial: unit = SpeedUnit.MilesPerHour; break;
case UnitSystem.Metric: unit = SpeedUnit.KilometersPerHour; break;
case UnitSystem.NauticalImperial:
case UnitSystem.NauticalMetric: unit = SpeedUnit.Knots; break;
default: unit = SpeedUnit.MetersPerSecond; break;
}
break;
}
metersPerSecond = ManeuveringBoard.ConvertFromUnit(metersPerSecond, unit);
return(true);
}
}
