/// <summary>
/// Defines a conversion factor between two units.
/// </summary>
/// <param name="sourceUnit">The conversion source unit.</param>
/// <param name="targetUnit">The conversion destination unit.</param>
/// <param name="factor">The conversion factor.</param>
public static UnitConversion Define(Unit sourceUnit, Unit targetUnit, double factor)
{
var conversion = new UnitConversion(sourceUnit, targetUnit, factor);
UnitConversionManager.Add(conversion);
return(conversion);
}
private static Tree <UnitConversion> getConversionTree(Unit sourceUnit,
Unit targetUnit, Recursion <Unit> recursion = null)
{
if (recursion == null)
{
recursion = new Recursion <Unit>();
}
var tree = new Tree <UnitConversion>();
var sourceUnitConversions = UnitConversionManager.GetDirectFrom(sourceUnit);
foreach (var conversion in sourceUnitConversions)
{
if (!recursion.Contains(conversion.TargetUnit))
{
TreeItem <UnitConversion> subItem;
if (Utils.NullableEquals(conversion.TargetUnit, targetUnit))
{
subItem = new TreeItem <UnitConversion>(conversion);
tree.Children.Add(subItem);
break;
}
else
{
var newRecursion = recursion.Recurse(conversion.TargetUnit);
var subTree = getConversionTree(conversion.TargetUnit, targetUnit, newRecursion);
subItem = subTree.ToTreeItem(conversion);
}
tree.Children.Add(subItem);
}
}
return(tree);
}
/// <summary> /// Gets all the possible direct conversions to the specified target unit. /// </summary> /// <param name="targetUnit">The conversion target unit.</param> /// <returns></returns> public static UnitConversion[] GetDirectTo(Unit targetUnit) => UnitConversionManager.GetDirectTo(targetUnit);
/// <summary> /// Gets all the possible direct conversions from the specified source unit. /// </summary> /// <param name="sourceUnit">The conversion source unit.</param> /// <returns></returns> public static UnitConversion[] GetDirectFrom(Unit sourceUnit) => UnitConversionManager.GetDirectFrom(sourceUnit);
/// <summary> /// Gets the direct conversion between two units. /// </summary> /// <param name="sourceUnit">The conversion source unit.</param> /// <param name="targetUnit">The conversion target unit.</param> /// <returns></returns> public static UnitConversion GetDirect(Unit sourceUnit, Unit targetUnit) => UnitConversionManager.GetDirect(sourceUnit, targetUnit);
/// <summary> /// Gets the scale zero for the specified unit. /// </summary> /// <param name="unit">The unit.</param> /// <returns>The scale zero amount.</returns> public static Scalar GetScaleZero(Unit unit) => UnitConversionManager.GetScaleZero(unit);
/// <summary> /// Defines the scale zero for the specified unit. /// </summary> /// <param name="unit">The unit.</param> /// <param name="zero">The scale zero amount.</param> public static void DefineScaleZero(Unit unit, Scalar zero) => UnitConversionManager.DefineScaleZero(unit, zero);
