private ITNodeInt ConstructRecursive(List <ITIntervalInt> L)
{
if (L.Count <= 0)
{
return(null);
}
ITNodeInt n = new ITNodeInt();
n.mid = Median(L);
List <ITIntervalInt> left = new List <ITIntervalInt>();
List <ITIntervalInt> right = new List <ITIntervalInt>();
foreach (ITIntervalInt i in L)
{
if (i.max < n.mid)
{
left.Add(i);
}
else if (i.min > n.mid)
{
right.Add(i);
}
else
{
n.left.Add(i);
n.right.Add(i);
}
}
n.left.Sort((a, b) => { return(a.min.CompareTo(b.min)); });
n.right.Sort((a, b) => { return(b.max.CompareTo(a.max)); });
n.lc = ConstructRecursive(left);
n.rc = ConstructRecursive(right);
return(n);
}
private void FindRecursive(ITNodeInt n, int val, ref List <object> res)
{
if (n == null)
{
return;
}
if (val <= n.mid)
{
foreach (ITIntervalInt i in n.left)
{
if (i.min > val)
{
break;
}
if (i.max > val || i.min == i.max)
{
res.Add(i.obj);
}
}
FindRecursive(n.lc, val, ref res);
}
else
{
foreach (ITIntervalInt i in n.right)
{
if (i.max < val)
{
break;
}
res.Add(i.obj);
}
FindRecursive(n.rc, val, ref res);
}
}
private void FindRecursive(ITNodeInt n, int val1, int val2, ref List <object> res, Func <object, bool> filter)
{
if (n == null)
{
return;
}
if (val2 <= n.mid)
{
foreach (ITIntervalInt i in n.left)
{
if (i.min > val2)
{
break;
}
if (filter == null || filter(i.obj))
{
res.Add(i.obj);
}
}
FindRecursive(n.lc, val1, val2, ref res, filter);
}
else if (val1 >= n.mid)
{
foreach (ITIntervalInt i in n.right)
{
if (i.max < val1)
{
break;
}
if (filter == null || filter(i.obj))
{
res.Add(i.obj);
}
}
FindRecursive(n.rc, val1, val2, ref res, filter);
}
else
{
foreach (ITIntervalInt i in n.left)
{
if (i.min > val2)
{
break;
}
if (filter == null || filter(i.obj))
{
res.Add(i.obj);
}
}
FindRecursive(n.lc, val1, n.mid, ref res, filter);
FindRecursive(n.rc, n.mid, val2, ref res, filter);
}
}
void Construct()
{
intervals.Sort((a, b) => { return(a.mid.CompareTo(b.mid)); });
root = ConstructRecursive(intervals);
}
public void Clear()
{
intervals.Clear();
objects.Clear();
root = null;
}
public void Add(object obj, int min, int max)
{
intervals.Add(new ITIntervalInt(obj, min, max));
objects.Add(obj);
root = null;
}
