public void TestFractionParse(string test, double expected)
{
if (CompoundFractionWithUnits.TryParse(test, out CompoundFractionWithUnits value))
{
Assert.AreEqual(expected, value.Value);
}
else
{
Assert.Fail();
}
}
public void TestConvertCompoundLength(string test, double expected, double tolerance, bool outcome)
{
if (CompoundFractionWithUnits.TryParse(test, out CompoundFractionWithUnits value))
{
//int roundDigits = 4;
var converted = FilamentMath.ConvertLength(value.Value, FilamentMath.SupportedLengthAlias(value.Units), ConvertToLength.Millimeter);
//var rounded = Math.Round(converted, roundDigits);
//var meetsTolerance = Math.Abs(converted - expected) < tolerance;
Assert.AreEqual(outcome, converted.WithinTolerance(expected, tolerance));
}
else
{
Assert.Fail();
}
}
public object ConvertBack(object value, Type targetType, object parameter, string language)
{
bool unitsSet = false;
ConvertToLength expectedUnits;
//double conversionFactor = 1;
if (parameter is string expected)
{
if (Enum.TryParse <ConvertToLength>(expected, out expectedUnits))
{
unitsSet = true;
}
}
else if (parameter is ConvertToLength actual)
{
expectedUnits = actual;
unitsSet = true;
}
else
{
expectedUnits = ConvertToLength.Millimeter;
unitsSet = true;
}
if (value is string str && unitsSet)
{
// TODO: implement a conversion factor for the units
if (ValueWithUnits.TryParse(str, out ValueWithUnits valueWithUnits))
{
return(FilamentMath.ConvertLength(valueWithUnits.Value, FilamentMath.SupportedLengthAlias(valueWithUnits.Units), expectedUnits));
}
else if (CompoundFractionWithUnits.TryParse(str, out CompoundFractionWithUnits compoundFractionWithUnits))
{
return(FilamentMath.ConvertLength(compoundFractionWithUnits.Value, FilamentMath.SupportedLengthAlias(compoundFractionWithUnits.Units), expectedUnits));
}
}
return(value);
//throw new NotImplementedException();
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
ConvertToLength convertTo = ConvertToLength.Millimeter;
string defaultUnits;
if (parameter is string paraString)
{
if (Enum.TryParse(paraString, out ConvertToLength result))
{
convertTo = result;
}
defaultUnits = shortHandnames[(int)convertTo];
}
else
{
defaultUnits = shortHandnames[(int)convertTo];
}
if (value is string str)
{
if (ValueWithUnits.TryParse(str, out ValueWithUnits valueWithUnits))
{
//var match = Regex.Match(str, WeightWithUnitsConverter.regexFindNumberAndUnit);
SupportedLength supported = FilamentMath.SupportedLengthAlias(string.IsNullOrEmpty(valueWithUnits.Units) ? defaultUnits : valueWithUnits.Units);
return(FilamentMath.ConvertLength(valueWithUnits.Value, supported, convertTo));
}
else if (CompoundFractionWithUnits.TryParse(str, out CompoundFractionWithUnits compoundFractionWithUnits))
{
//var fracMatch = Regex.Match(str, regexFindFraction);
SupportedLength supported = FilamentMath.SupportedLengthAlias(!string.IsNullOrEmpty(compoundFractionWithUnits.Units) ? compoundFractionWithUnits.Units : "in");
return(FilamentMath.ConvertLength(compoundFractionWithUnits.Value, supported, convertTo));
//double number;
//double numerator;
//double denominator;
//if (double.TryParse(fracMatch.Groups["numerator"].Value, out numerator) && double.TryParse(fracMatch.Groups["denominator"].Value, out denominator))
//{
// if (!string.IsNullOrEmpty(fracMatch.Groups["whole"].Value))
// {
// if (double.TryParse(fracMatch.Groups["whole"].Value, out number))
// {
// return (number + (numerator / denominator)) * ConversionFactor(string.IsNullOrEmpty(fracMatch.Groups["units"].Value) ? "in" : fracMatch.Groups["units"].Value.ToLower(), convertTo);
// }
// else
// return double.NaN;
// }
// else
// {
// return (numerator / denominator) * ConversionFactor(string.IsNullOrEmpty(fracMatch.Groups["units"].Value) ? "in" : fracMatch.Groups["units"].Value.ToLower(), convertTo);
// }
}
else
{
return(double.NaN);
}
}
else
{
return(double.NaN);
}
}