private void SearchBetween(KDSearchScope[] searchAry, KDNode <T> node, ref List <T> result)
{
if (node != null)
{
if (this.IsInRange(node.TheValue, searchAry))
{
result.Add(node.TheValue);
}
int index = node.Depth % this.dimension;
if (searchAry[index].KDSearchType == KDSearchType.Default)
{
if (node.TheValue[index].CompareTo(searchAry[index].MinValue) < 0)
{
this.SearchBetween(searchAry, node.Right, ref result);
}
else if ((node.TheValue[index].CompareTo(searchAry[index].MinValue) >= 0) && (node.TheValue[index].CompareTo(searchAry[index].MaxValue) < 0))
{
this.SearchBetween(searchAry, node.Left, ref result);
this.SearchBetween(searchAry, node.Right, ref result);
}
else
{
this.SearchBetween(searchAry, node.Left, ref result);
}
}
else
{
this.SearchBetween(searchAry, node.Left, ref result);
this.SearchBetween(searchAry, node.Right, ref result);
}
}
}
public KDNode(T val, int _depth)
{
this.left = null;
this.right = null;
this.theValue = val;
this.depth = _depth;
}
public KDNode <T> Insert(T val)
{
if (this.root == null)
{
this.root = new KDNode <T>(val, 0);
return(this.root);
}
if (this.root.TheValue.Equals(val))
{
return(this.root);
}
if (this.root.TheValue[0].CompareTo(val[0]) >= 0)
{
return(this.Insert(val, this.root.Left, this.root, true));
}
return(this.Insert(val, this.root.Right, this.root, false));
}
private KDNode <T> search(T val, KDNode <T> node)
{
if (node == null)
{
return(null);
}
if (node.TheValue.Equals(val))
{
return(node);
}
int num = node.Depth % this.dimension;
if (node.TheValue[num].CompareTo(val[num]) <= 0)
{
return(this.search(val, node.Right));
}
return(this.search(val, node.Left));
}
private KDNode <T> Insert(T val, KDNode <T> insertNode, KDNode <T> parentNode, bool isLeft)
{
if (insertNode == null)
{
if (isLeft)
{
parentNode.Left = new KDNode <T>(val, parentNode.Depth + 1);
return(parentNode.Left);
}
parentNode.Right = new KDNode <T>(val, parentNode.Depth + 1);
return(parentNode.Right);
}
if (insertNode.TheValue.Equals(val))
{
return(insertNode);
}
int num = insertNode.Depth % this.dimension;
if (insertNode.TheValue[num].CompareTo(val[num]) >= 0)
{
return(this.Insert(val, insertNode.Left, insertNode, true));
}
return(this.Insert(val, insertNode.Right, insertNode, false));
}
private void SearchBetween(T min, T max, bool[] minClosedAry, bool[] maxClosedAry, KDNode <T> node, ref List <T> result)
{
if (node != null)
{
if (this.IsInRange(node.TheValue, min, max, minClosedAry, maxClosedAry))
{
result.Add(node.TheValue);
}
int num = node.Depth % this.dimension;
if (node.TheValue[num].CompareTo(min[num]) < 0)
{
this.SearchBetween(min, max, minClosedAry, maxClosedAry, node.Right, ref result);
}
else if ((node.TheValue[num].CompareTo(min[num]) >= 0) && (node.TheValue[num].CompareTo(max[num]) < 0))
{
this.SearchBetween(min, max, minClosedAry, maxClosedAry, node.Left, ref result);
this.SearchBetween(min, max, minClosedAry, maxClosedAry, node.Right, ref result);
}
else
{
this.SearchBetween(min, max, minClosedAry, maxClosedAry, node.Left, ref result);
}
}
}
public KDTree(int _dimension)
{
this.root = null;
this.dimension = 2;
this.dimension = _dimension;
}
