public override DomainElement ElementForIndex(int index)
{
if (index >= GetCardinality() || index < 0)
{
throw new IndexOutOfRangeException();
}
return(DomainElement.Of(First + index));
}
public override DomainElement ElementForIndex(int index)
{
int[] values = new int[GetNumberOfComponents()];
for (int i = GetNumberOfComponents() - 1; i >= 0; --i)
{
int n = _domains[i].GetCardinality();
values[i] = _domains[i].ElementForIndex(index % n)[0];
index /= n;
}
return(DomainElement.Of(values));
}
public override int IndexOfElement(DomainElement element)
{
if (element.GetNumberOfComponents() != GetNumberOfComponents())
{
throw new Exception("Element not in domain!");
}
int index = 0;
int combinations = 1;
for (int i = GetNumberOfComponents() - 1; i >= 0; --i)
{
DomainElement value = DomainElement.Of(element.GetComponentValue(i));
index += (combinations * _domains[i].IndexOfElement(value));
combinations *= _domains[i].GetCardinality();
}
return(index);
}