/// <summary>
/// Split this leaf node by creating left and right children, then moving all the children of
/// this node into the respective buckets.
/// </summary>
private void SplitLeafNode()
{
// Create the new children.
pRight = new KDNode <T>(iDimensions, iBucketCapacity);
pLeft = new KDNode <T>(iDimensions, iBucketCapacity);
// Move each item in this leaf into the children.
for (int i = 0; i < Size; ++i)
{
// Store.
double[] tOldPoint = tPoints[i];
T kOldData = tData[i];
// If larger, put it in the right.
if (tOldPoint[iSplitDimension] > fSplitValue)
{
pRight.AddLeafPoint(tOldPoint, kOldData);
}
// If smaller, put it in the left.
else
{
pLeft.AddLeafPoint(tOldPoint, kOldData);
}
}
// Wipe the data from this KDNode.
tPoints = null;
tData = null;
}
/// <summary>
/// Insert a new point into this leaf node.
/// </summary>
/// <param name="tPoint">The position which represents the data.</param>
/// <param name="kValue">The value of the data.</param>
public void AddPoint(double[] tPoint, T kValue)
{
// Find the correct leaf node.
KDNode <T> pCursor = this;
while (!pCursor.IsLeaf)
{
// Extend the size of the leaf.
pCursor.ExtendBounds(tPoint);
pCursor.Size++;
// If it is larger select the right, or lower, select the left.
pCursor = tPoint[pCursor.iSplitDimension] > pCursor.fSplitValue ? pCursor.pRight : pCursor.pLeft;
}
// Insert it into the leaf.
pCursor.AddLeafPoint(tPoint, kValue);
}
