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ConvexHull.h
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#pragma once
#include "CNode.h"
template <typename Point_2D>
class ConvexHull : public TTree<Point_2D>
{
/**
* @author Evripidis Pavlidis
* @since 2020-5-12
*/
protected:
CNode<Point_2D>* root = nullptr;
CNode<Point_2D>* minNode = nullptr;
CNode<Point_2D>* maxNode = nullptr;
public:
ConvexHull() {};
~ConvexHull();
CNode<Point_2D>* GetRoot();
CNode<Point_2D>* GetMinNode();
CNode<Point_2D>* GetMaxNode();
void SetRoot(CNode<Point_2D>*);
void SetMinNode(CNode<Point_2D>*);
void SetMaxNode(CNode<Point_2D>*);
void Insert(Point_2D*);
void InsertAt(Point_2D*);
CNode<Point_2D>* NodeSplit(CNode<Point_2D>*);
void Delete(Point_2D);
void DeleteAt(Point_2D p);
void DeleteFromLeaf(CNode<Point_2D>*, Point_2D);
CNode<Point_2D>* Transform2NodeTo3Node(CNode<Point_2D>* cn);
void UP(CNode<Point_2D>* cn);
void DOWN(CNode<Point_2D>* cn);
std::vector<Point_2D> GetChainedLeaves();
void PostorderDelete(CNode<Point_2D>* cn);
void OutputHull(const std::string& FileName);
void OutputPoints(const std::string& FileName);
void DeletePoints();
bool isValidTree();
bool PostOrderValidNode(CNode<Point_2D>*);
};
template<typename Point_2D>
inline ConvexHull<Point_2D>::~ConvexHull()
{
PostorderDelete(this->GetRoot());
}
template<typename Point_2D>
inline CNode<Point_2D>* ConvexHull<Point_2D>::GetRoot()
{
return this->root;
}
template<typename Point_2D>
inline CNode<Point_2D>* ConvexHull<Point_2D>::GetMinNode()
{
return this->minNode;
}
template<typename Point_2D>
inline CNode<Point_2D>* ConvexHull<Point_2D>::GetMaxNode()
{
return this->maxNode;
}
template<typename Point_2D>
inline void ConvexHull<Point_2D>::SetRoot(CNode<Point_2D>* cn)
{
this->root = cn;
}
template<typename Point_2D>
inline void ConvexHull<Point_2D>::SetMinNode(CNode<Point_2D>* cmin)
{
this->minNode = cmin;
}
template<typename Point_2D>
inline void ConvexHull<Point_2D>::SetMaxNode(CNode<Point_2D>* cmax)
{
this->maxNode = cmax;
}
template<typename Point_2D>
inline void ConvexHull<Point_2D>::Insert(Point_2D* p)
{
if (!root) {
root = new CNode<Point_2D>(p);
++this->height;
SetMinNode(root);
SetMaxNode(root);
}
else {
InsertAt(p);
}
}
template <typename Point_2D>
inline void ConvexHull<Point_2D>::InsertAt(Point_2D* p) {
CNode<Point_2D>* itr = GetRoot();
if (itr->GetNodeSize() == 3) {
itr = NodeSplit(itr);
}
while (!itr->getIsLeaf() || itr->GetNodeSize() == 3) {
if (itr->GetNodeSize() == 3)
itr = NodeSplit(itr);
DOWN(itr);
if (itr->GetNodeSize() == 1) {
if (*p <= *itr->getLMax()->getMaxVal()) {
itr = itr->getLCh();
}
else {
itr = itr->getRCh();
}
}
else if (itr->GetNodeSize() == 2) {
if (*p <= *itr->getLMax()->getMaxVal()) {
itr = itr->getLCh();
}
else if (*p <= *itr->getRMax()->getMaxVal()) {
itr = itr->getM1Ch();
}
else {
itr = itr->getRCh();
}
}
else {
if (*p <= *itr->getLMax()->getMaxVal()) {
itr = itr->getLCh();
}
else if (*p <= *itr->getMMax()->getMaxVal()) {
itr = itr->getM1Ch();
}
else if (*p <= *itr->getRMax()->getMaxVal()) {
itr = itr->getM2Ch();
}
else {
itr = itr->getRCh();
}
}
}
Point_2D* lVal = itr->getLVal();
Point_2D* rVal = itr->getRVal();
if (*p == *lVal || rVal && *p == *rVal) { return; }
if (rVal) {
if (*p > *rVal) {
itr->setMVal(rVal);
itr->setRVal(p);
}
else if (*p > *lVal) {
itr->setMVal(p);
}
else {
itr->setMVal(lVal);
itr->setLVal(p);
}
}
else {
if (*p > *lVal) {
itr->setRVal(p);
}
else {
itr->setRVal(lVal);
itr->setLVal(p);
}
}
itr->CalculateLeafLSubHull();
itr->CalculateLeafRSubHull();
itr = itr->getFather();
while (itr) {
UP(itr);
itr = itr->getFather();
}
}
template<typename Point_2D>
inline CNode<Point_2D>* ConvexHull<Point_2D>::NodeSplit(CNode<Point_2D>* cn)
{
if (cn == GetRoot()) {
if (cn->getIsLeaf()) {
CNode<Point_2D>* newLeft = new CNode<Point_2D>(cn->getLVal(), cn->getMVal());
CNode<Point_2D>* newRight = new CNode<Point_2D>(cn->getRVal());
CNode<Point_2D>* newRoot = new CNode<Point_2D>(newLeft, newLeft, newRight);
CNode<Point_2D>* mem_clear = root;
SetRoot(newRoot);
++this->height;
SetMinNode(newLeft);
SetMaxNode(newRight);
delete mem_clear;
}
else {
DOWN(cn);
CNode<Point_2D>* newLeft = new CNode<Point_2D>(cn->getLMax(), cn->getLCh(), cn->getM1Ch());
CNode<Point_2D>* newRight = new CNode<Point_2D>(cn->getRMax(), cn->getM2Ch(), cn->getRCh());
CNode<Point_2D>* newRoot = new CNode<Point_2D>(cn->getMMax(), newLeft, newRight);
CNode<Point_2D>* mem_clear = root;
SetRoot(newRoot);
++this->height;
delete mem_clear;
}
return root;
}
CNode<Point_2D>* FNode = cn->getFather();
if (cn->getIsLeaf()) {
Point_2D* mVal = cn->getMVal();
if (FNode->GetNodeSize() == 1) {
if (cn == FNode->getLCh()) {
CNode<Point_2D>* newMiddle = new CNode<Point_2D>(cn->getRVal());
FNode->setRMax(newMiddle);
FNode->setM1Ch(newMiddle);
cn->setRVal(mVal);
cn->setMVal(nullptr);
newMiddle->setChainLeft(cn);
FNode->getRCh()->setChainLeft(newMiddle);
}
else {
CNode<Point_2D>* newMiddle = new CNode<Point_2D>(cn->getLVal(), mVal);
FNode->setRMax(newMiddle);
FNode->setM1Ch(newMiddle);
cn->setLVal(cn->getRVal());
cn->setMVal(nullptr);
cn->setRVal(nullptr);
newMiddle->setChainLeft(FNode->getLCh());
cn->setChainLeft(newMiddle);
}
}
else {
if (cn == FNode->getLCh()) {
CNode<Point_2D>* newMiddle = new CNode<Point_2D>(cn->getRVal());
FNode->setM2Ch(FNode->getM1Ch());
FNode->setM1Ch(newMiddle);
FNode->setMMax(newMiddle);
cn->setRVal(mVal);
cn->setMVal(nullptr);
newMiddle->setChainLeft(cn);
FNode->getM2Ch()->setChainLeft(newMiddle);
}
else if (cn == FNode->getM1Ch()) {
CNode<Point_2D>* newMiddle = new CNode<Point_2D>(cn->getRVal());
FNode->setM2Ch(newMiddle);
FNode->setMMax(cn);
FNode->setRMax(newMiddle);
cn->setMVal(nullptr);
cn->setRVal(mVal);
newMiddle->setChainLeft(cn);
FNode->getRCh()->setChainLeft(newMiddle);
}
else {
CNode<Point_2D>* newMiddle = new CNode<Point_2D>(cn->getLVal(), mVal);
FNode->setM2Ch(newMiddle);
FNode->setMMax(FNode->getRMax());
FNode->setRMax(newMiddle);
cn->setLVal(cn->getRVal());
cn->setMVal(nullptr);
cn->setRVal(nullptr);
newMiddle->setChainLeft(FNode->getM1Ch());
cn->setChainLeft(newMiddle);
}
}
cn->CalculateLeafLSubHull();
cn->CalculateLeafRSubHull();
}
else {
CNode<Point_2D>* mMax = cn->getMMax();
DOWN(cn);
if (FNode->GetNodeSize() == 1) {
if (cn == FNode->getLCh()) {
CNode<Point_2D>* newMiddle = new CNode<Point_2D>(cn->getRMax(), cn->getM2Ch(), cn->getRCh());
FNode->setRMax(FNode->getLMax());
FNode->setLMax(mMax);
FNode->setM1Ch(newMiddle);
cn->setMMax(nullptr);
cn->setRMax(nullptr);
cn->setRCh(cn->getM1Ch());
cn->setM1Ch(nullptr);
cn->setM2Ch(nullptr);
}
else {
CNode<Point_2D>* newMiddle = new CNode<Point_2D>(cn->getLMax(), cn->getLCh(), cn->getM1Ch());
FNode->setRMax(mMax);
FNode->setM1Ch(newMiddle);
cn->setLMax(cn->getRMax());
cn->setMMax(nullptr);
cn->setRMax(nullptr);
cn->setLCh(cn->getM2Ch());
cn->setM1Ch(nullptr);
cn->setM2Ch(nullptr);
}
}
else {
if (cn == FNode->getLCh()) {
CNode<Point_2D>* newMiddle = new CNode<Point_2D>(cn->getRMax(), cn->getM2Ch(), cn->getRCh());
FNode->setMMax(FNode->getLMax());
FNode->setLMax(mMax);
FNode->setM2Ch(FNode->getM1Ch());
FNode->setM1Ch(newMiddle);
cn->setMMax(nullptr);
cn->setRMax(nullptr);
cn->setRCh(cn->getM1Ch());
cn->setM2Ch(nullptr);
cn->setM1Ch(nullptr);
}
else if (cn == FNode->getM1Ch()) {
CNode<Point_2D>* newMiddle = new CNode<Point_2D>(cn->getRMax(), cn->getM2Ch(), cn->getRCh());
FNode->setMMax(mMax);
FNode->setM2Ch(newMiddle);
cn->setMMax(nullptr);
cn->setRMax(nullptr);
cn->setRCh(cn->getM1Ch());
cn->setM1Ch(nullptr);
cn->setM2Ch(nullptr);
}
else {
CNode<Point_2D>* newMiddle = new CNode<Point_2D>(cn->getLMax(), cn->getLCh(), cn->getM1Ch());
FNode->setMMax(FNode->getRMax());
FNode->setRMax(mMax);
FNode->setM2Ch(newMiddle);
cn->setLMax(cn->getRMax());
cn->setMMax(nullptr);
cn->setRMax(nullptr);
cn->setLCh(cn->getM2Ch());
cn->setM1Ch(nullptr);
cn->setM2Ch(nullptr);
}
}
UP(cn);
}
UP(FNode);
return FNode;
}
template<typename Point_2D>
inline void ConvexHull<Point_2D>::Delete(Point_2D p)
{
if (!root)
return;
else if (root->getIsLeaf()) {
DeleteFromLeaf(root, p);
}
else {
DeleteAt(root, p);
}
}
template<typename Point_2D>
inline void ConvexHull<Point_2D>::DeleteAt(Point_2D p)
{
CNode<Point_2D>* cn = GetRoot();
while (!cn->getIsLeaf())
{
if (cn->GetNodeSize() == 1 && cn != GetRoot()) {
cn = Transform2NodeTo3Node(cn);
}
DOWN(cn);
if (cn->getRMax()) {
if (*cn->getRMax()->getMaxVal() < p) {
cn = cn->getRCh();
}
else {
if (cn->getMMax()) {
if (*cn->getMMax()->getMaxVal() < p) {
cn = cn->getM2Ch();
}
else {
if (*cn->getLMax()->getMaxVal() < p) {
cn = cn->getM1Ch();
}
else {
cn = cn->getLCh();
}
}
}
else {
if (*cn->getLMax()->getMaxVal() < p) {
cn = cn->getM1Ch();
}
else {
cn = cn->getLCh();
}
}
}
}
else {
if (*cn->getLMax()->getMaxVal() < p) {
cn = cn->getRCh();
}
else {
cn = cn->getLCh();
}
}
}
if (cn->GetNodeSize() == 1) {
cn = Transform2NodeTo3Node(cn);
}
DeleteFromLeaf(cn, p);
while (cn) {
if (!cn->GetLHull()) {
UP(cn);
}
cn = cn->getFather();
}
}
template<typename Point_2D>
inline void ConvexHull<Point_2D>::DeleteFromLeaf(CNode<Point_2D>* cn, Point_2D p)
{
int NodeSize = cn->GetNodeSize();
if (cn == GetRoot() || NodeSize >= 2) {
if (p == *cn->getLVal()) {
if (NodeSize == 1) {
delete cn;
SetRoot(nullptr);
SetMinNode(nullptr);
SetMaxNode(nullptr);
TTree<Point_2D>::SetHeight(-1);
return;
}
else if (NodeSize == 2) {
cn->setLVal(cn->getRVal());
cn->setRVal(nullptr);
}
else {
cn->setLVal(cn->getMVal());
cn->setMVal(nullptr);
}
}
else if (cn->getRVal() && p == *cn->getRVal()) {
if (NodeSize == 2) {
cn->setRVal(nullptr);
}
else {
cn->setRVal(cn->getMVal());
cn->setMVal(nullptr);
}
}
else if (cn->getMVal() && p == *cn->getMVal()) {
cn->setMVal(nullptr);
}
}
cn->CalculateLeafLSubHull();
cn->CalculateLeafRSubHull();
}
template<typename Point_2D>
inline CNode<Point_2D>* ConvexHull<Point_2D>::Transform2NodeTo3Node(CNode<Point_2D>* cn)
{
CNode<Point_2D>* LSibling = cn->getLSibling();
CNode<Point_2D>* RSibling = cn->getRSibling();
CNode<Point_2D>* FNode = cn->getFather();
if (FNode->GetNodeSize() == 1 && FNode->getLCh()->GetNodeSize() == 1 && FNode->getRCh()->GetNodeSize() == 1) {
if (cn->getIsLeaf()) {
CNode<Point_2D>* newRoot = new CNode<Point_2D>(FNode->getLCh()->getLVal(), FNode->getRCh()->getLVal());
CNode<Point_2D>* mem_clear = GetRoot();
SetMinNode(newRoot);
SetMaxNode(newRoot);
--this->height;
SetRoot(newRoot);
delete mem_clear->getLCh();
delete mem_clear->getRCh();
delete mem_clear;
return newRoot;
}
else {
Point_2D* LBridge;
Point_2D* RBridge;
CNode<Point_2D>* lCh = FNode->getLCh();
CNode<Point_2D>* rCh = FNode->getRCh();
// Node info
FNode->setMMax(FNode->getLMax());
FNode->setLMax(lCh->getLMax());
FNode->setRMax(rCh->getLMax());
// Left Child Left Hull info migration
FNode->SetLLeftIntermediateHull(lCh->GetLHull());
FNode->SetLLeftBridge(lCh->GetLBridge());
// Left Child Right Hull info migration
FNode->SetRLeftIntermediateHull(lCh->GetRHull());
FNode->SetRLeftBridge(lCh->GetRBridge());
// Right Child Left Hull info migration
FNode->SetLRightIntermediateHull(rCh->GetLHull());
FNode->SetLRightBridge(rCh->GetLBridge());
// Right Child Right Hull info migration
FNode->SetRRightIntermediateHull(rCh->GetRHull());
FNode->SetRRightBridge(rCh->GetRBridge());
// Node Left and Right Hulls
FNode->SetLHull(SubHull<Point_2D>::Bridge(FNode->GetLLeftIntermediateHull(), FNode->GetLRightIntermediateHull(), &LBridge, 0));
FNode->SetLBridge(LBridge);
FNode->SetRHull(SubHull<Point_2D>::Bridge(FNode->GetRLeftIntermediateHull(), FNode->GetRRightIntermediateHull(), &RBridge, 0));
FNode->SetRBridge(RBridge);
// Node Children info
FNode->setLCh(lCh->getLCh());
FNode->setM1Ch(lCh->getRCh());
FNode->setM2Ch(rCh->getLCh());
FNode->setRCh(rCh->getRCh());
--this->height;
// cleanup
lCh->SetLHull(nullptr);
rCh->SetLHull(nullptr);
lCh->SetRHull(nullptr);
rCh->SetRHull(nullptr);
delete lCh;
delete rCh;
}
return FNode;
}
if (LSibling) {
if (LSibling->GetNodeSize() >= 2) {
if (cn->getIsLeaf()) {
cn->setRVal(cn->getLVal());
cn->setLVal(LSibling->getRVal());
cn->CalculateLeafLSubHull();
cn->CalculateLeafRSubHull();
LSibling->setRVal(LSibling->getMVal());
LSibling->setMVal(nullptr);
LSibling->CalculateLeafLSubHull();
LSibling->CalculateLeafRSubHull();
}
else {
DOWN(cn);
DOWN(LSibling);
cn->setRMax(cn->getLMax());
cn->setM1Ch(cn->getLCh());
cn->setLCh(LSibling->getRCh());
if (cn == FNode->getM1Ch()) {
cn->setLMax(FNode->getLMax());
FNode->setLMax(LSibling->getRMax());
}
else if (cn == FNode->getM2Ch()) {
cn->setLMax(FNode->getMMax());
FNode->setMMax(LSibling->getRMax());
}
else {
if (FNode->GetNodeSize() > 1) {
cn->setLMax(FNode->getRMax());
FNode->setRMax(LSibling->getRMax());
}
else {
cn->setLMax(FNode->getLMax());
FNode->setLMax(LSibling->getRMax());
}
}
if (LSibling->GetNodeSize() == 2) {
LSibling->setRMax(nullptr);
LSibling->setRCh(LSibling->getM1Ch());
LSibling->setM1Ch(nullptr);
}
else {
LSibling->setRMax(LSibling->getMMax());
LSibling->setMMax(nullptr);
LSibling->setRCh(LSibling->getM2Ch());
LSibling->setM2Ch(nullptr);
}
UP(cn);
UP(LSibling);
}
return cn;
}
else {
if (!RSibling || RSibling->GetNodeSize() == 1) {
if (cn->getIsLeaf()) {
if (cn == FNode->getRCh()) {
cn->setRVal(cn->getLVal());
cn->setLVal(LSibling->getLVal());
if (FNode->GetNodeSize() == 2) {
FNode->setRMax(nullptr);
FNode->setM1Ch(nullptr);
}
else {
FNode->setRMax(FNode->getMMax());
FNode->setMMax(nullptr);
FNode->setM2Ch(nullptr);
}
cn->CalculateLeafLSubHull();
cn->CalculateLeafRSubHull();
delete LSibling;
return cn;
}
else {
LSibling->setRVal(cn->getLVal());
if (FNode->GetNodeSize() == 2) {
FNode->setRMax(nullptr);
FNode->setM1Ch(nullptr);
}
else {
if (cn == FNode->getM1Ch()) {
FNode->setM1Ch(FNode->getM2Ch());
}
else {
FNode->setRMax(FNode->getMMax());
}
FNode->setMMax(nullptr);
FNode->setM2Ch(nullptr);
}
delete cn;
LSibling->CalculateLeafLSubHull();
LSibling->CalculateLeafRSubHull();
return LSibling;
}
}
else {
DOWN(cn);
DOWN(LSibling);
if (cn == FNode->getRCh()) {
cn->setRMax(cn->getLMax());
cn->setMMax(FNode->getRMax());
cn->setLMax(LSibling->getLMax());
cn->setM2Ch(cn->getLCh());
cn->setM1Ch(LSibling->getRCh());
cn->setLCh(LSibling->getLCh());
if (FNode->GetNodeSize() == 2) {
FNode->setRMax(nullptr);
FNode->setM1Ch(nullptr);
}
else {
FNode->setRMax(FNode->getMMax());
FNode->setMMax(nullptr);
FNode->setM2Ch(nullptr);
}
delete LSibling;
UP(cn);
return cn;
}
else {
LSibling->setM1Ch(LSibling->getRCh());
LSibling->setM2Ch(cn->getLCh());
LSibling->setRCh(cn->getRCh());
LSibling->setRMax(cn->getLMax());
if (cn == FNode->getM2Ch()) {
LSibling->setMMax(FNode->getMMax());
FNode->setMMax(nullptr);
FNode->setM2Ch(nullptr);
}
else {
LSibling->setMMax(FNode->getLMax());
if (FNode->GetNodeSize() == 2) {
FNode->setLMax(FNode->getRMax());
FNode->setRMax(nullptr);
FNode->setM1Ch(nullptr);
}
else {
FNode->setLMax(FNode->getMMax());
FNode->setMMax(nullptr);
FNode->setM1Ch(FNode->getM2Ch());
FNode->setM2Ch(nullptr);
}
}
delete cn;
UP(LSibling);
return LSibling;
}
}
}
}
}
if (RSibling) {
if (RSibling->GetNodeSize() >= 2) {
if (cn->getIsLeaf()) {
cn->setRVal(RSibling->getLVal());
cn->CalculateLeafLSubHull();
cn->CalculateLeafRSubHull();
if (RSibling->GetNodeSize() == 2) {
RSibling->setLVal(RSibling->getRVal());
RSibling->setRVal(nullptr);
}
else {
RSibling->setLVal(RSibling->getMVal());
RSibling->setMVal(nullptr);
}
RSibling->CalculateLeafLSubHull();
RSibling->CalculateLeafRSubHull();
}
else {
DOWN(cn);
DOWN(RSibling);
cn->setM1Ch(cn->getRCh());
cn->setRCh(RSibling->getLCh());
RSibling->setLCh(RSibling->getM1Ch());
if (cn == FNode->getLCh()) {
cn->setRMax(FNode->getLMax());
FNode->setLMax(RSibling->getLMax());
}
else if (cn == FNode->getM2Ch()) {
cn->setRMax(FNode->getRMax());
FNode->setRMax(RSibling->getLMax());
//
//cn->isValidNode();
//FNode->isValidNode();
//
}
else {
if (FNode->GetNodeSize() == 2) {
cn->setRMax(FNode->getRMax());
FNode->setRMax(RSibling->getLMax());
}
else {
cn->setRMax(FNode->getMMax());
FNode->setMMax(RSibling->getLMax());
}
}
if (RSibling->GetNodeSize() == 2) {
RSibling->setLMax(RSibling->getRMax());
RSibling->setRMax(nullptr);
RSibling->setM1Ch(nullptr);
}
else {
RSibling->setLMax(RSibling->getMMax());
RSibling->setMMax(nullptr);
RSibling->setM1Ch(RSibling->getM2Ch());
RSibling->setM2Ch(nullptr);
}
UP(cn);
UP(RSibling);
}
return cn;
}
else {
if (cn->getIsLeaf()) {
if (cn == FNode->getLCh()) {
cn->setRVal(RSibling->getLVal());
if (FNode->GetNodeSize() == 3) {
FNode->setMMax(nullptr);
FNode->setM1Ch(FNode->getM2Ch());
FNode->setM2Ch(nullptr);
}
else {
FNode->setRMax(nullptr);
FNode->setM1Ch(nullptr);
}
delete RSibling;
cn->CalculateLeafLSubHull();
cn->CalculateLeafRSubHull();
return cn;
}
else if (cn == FNode->getM1Ch()) {
if (FNode->GetNodeSize() == 2) {
FNode->setRMax(nullptr);
FNode->setM1Ch(nullptr);
RSibling->setRVal(RSibling->getLVal());
RSibling->setLVal(cn->getLVal());
RSibling->CalculateLeafLSubHull();
RSibling->CalculateLeafRSubHull();
delete cn;
return RSibling;
}
else {
cn->setRVal(RSibling->getLVal());
FNode->setRMax(FNode->getMMax());
FNode->setMMax(nullptr);
FNode->setM2Ch(nullptr);
delete RSibling;
cn->CalculateLeafLSubHull();
return cn;
}
}
else {
FNode->setRMax(FNode->getMMax());
FNode->setMMax(nullptr);
FNode->setM2Ch(nullptr);
RSibling->setRVal(RSibling->getLVal());
RSibling->setLVal(cn->getLVal());
RSibling->CalculateLeafLSubHull();
RSibling->CalculateLeafRSubHull();
delete cn;
return RSibling;
}
}
else {
DOWN(cn);
DOWN(RSibling);
if (cn == FNode->getLCh()) {
cn->setMMax(FNode->getLMax());
cn->setRMax(RSibling->getLMax());
cn->setM1Ch(cn->getRCh());
cn->setM2Ch(RSibling->getLCh());
cn->setRCh(RSibling->getRCh());
if (FNode->GetNodeSize() == 3) {
FNode->setLMax(FNode->getMMax());
FNode->setMMax(nullptr);
FNode->setM1Ch(FNode->getM2Ch());
FNode->setM2Ch(nullptr);
}
else {
FNode->setLMax(FNode->getRMax());
FNode->setRMax(nullptr);
FNode->setM1Ch(nullptr);
}
delete RSibling;
UP(cn);
return cn;
}
else if (cn == FNode->getM1Ch()) {
if (FNode->GetNodeSize() == 2) {
RSibling->setRMax(RSibling->getLMax());
RSibling->setMMax(FNode->getRMax());
RSibling->setLMax(cn->getLMax());
RSibling->setM2Ch(RSibling->getLCh());
RSibling->setM1Ch(cn->getRCh());
RSibling->setLCh(cn->getLCh());
FNode->setM1Ch(nullptr);
FNode->setRMax(nullptr);
delete cn;
UP(RSibling);
return RSibling;
}
else {
cn->setMMax(FNode->getMMax());
cn->setRMax(RSibling->getLMax());