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https://github.com/NGSolve/netgen.git
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581 lines
10 KiB
C++
581 lines
10 KiB
C++
#ifndef FILE_ADTREE
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#define FILE_ADTREE
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/* *************************************************************************/
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/* File: adtree.hh */
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/* Author: Joachim Schoeberl */
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/* Date: 16. Feb. 98 */
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/* Redesigned by Wolfram Muehlhuber, May 1998 */
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/* *************************************************************************/
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namespace netgen
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{
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/**
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Alternating Digital Tree
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*/
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// #include "../include/mystdlib.h"
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// #include "../include/myadt.hpp"
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class ADTreeNode
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{
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public:
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ADTreeNode *left, *right, *father;
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int dim;
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float sep;
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float *data;
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float *boxmin;
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float *boxmax;
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int pi;
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int nchilds;
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ADTreeNode (int adim);
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~ADTreeNode ();
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friend class ADTree;
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};
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class ADTreeCriterion
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{
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public:
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ADTreeCriterion() { }
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virtual int Eval (const ADTreeNode * node) const = 0;
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};
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class ADTree
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{
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int dim;
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ADTreeNode * root;
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float *cmin, *cmax;
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Array<ADTreeNode*> ela;
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const ADTreeCriterion * criterion;
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Array<ADTreeNode*> stack;
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Array<int> stackdir;
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int stackindex;
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public:
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ADTree (int adim, const float * acmin,
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const float * acmax);
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~ADTree ();
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void Insert (const float * p, int pi);
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// void GetIntersecting (const float * bmin, const float * bmax,
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// Array<int> & pis) const;
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void SetCriterion (ADTreeCriterion & acriterion);
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void Reset ();
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int Next ();
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void GetMatch (Array<int> & matches);
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void DeleteElement (int pi);
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void Print (ostream & ost) const
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{ PrintRec (ost, root); }
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void PrintRec (ostream & ost, const ADTreeNode * node) const;
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};
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class ADTreeNode3
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{
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public:
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ADTreeNode3 *left, *right, *father;
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float sep;
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float data[3];
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int pi;
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int nchilds;
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ADTreeNode3 ();
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void DeleteChilds ();
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friend class ADTree3;
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static BlockAllocator ball;
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void * operator new(size_t);
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void operator delete (void *);
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};
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class ADTree3
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{
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ADTreeNode3 * root;
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float cmin[3], cmax[3];
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Array<ADTreeNode3*> ela;
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public:
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ADTree3 (const float * acmin,
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const float * acmax);
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~ADTree3 ();
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void Insert (const float * p, int pi);
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void GetIntersecting (const float * bmin, const float * bmax,
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Array<int> & pis) const;
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void DeleteElement (int pi);
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void Print (ostream & ost) const
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{ PrintRec (ost, root); }
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void PrintRec (ostream & ost, const ADTreeNode3 * node) const;
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};
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/*
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// divide each direction
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#define ADTN_DIV 10
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class ADTreeNode3Div
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{
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public:
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ADTreeNode3Div *father;
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ADTreeNode3Div *childs[ADTN_DIV];
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float minx, dist;
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float data[3];
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int pi;
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int nchilds;
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ADTreeNode3Div ();
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void DeleteChilds ();
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friend class ADTree3Div;
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static BlockAllocator ball;
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void * operator new(size_t);
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void operator delete (void *);
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};
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class ADTree3Div
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{
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ADTreeNode3Div * root;
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float cmin[3], cmax[3];
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Array<ADTreeNode3Div*> ela;
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public:
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ADTree3Div (const float * acmin,
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const float * acmax);
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~ADTree3Div ();
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void Insert (const float * p, int pi);
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void GetIntersecting (const float * bmin, const float * bmax,
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Array<int> & pis) const;
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void DeleteElement (int pi);
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void Print (ostream & ost) const
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{ PrintRec (ost, root); }
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void PrintRec (ostream & ost, const ADTreeNode3Div * node) const;
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};
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#define ADTN_SIZE 10
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// multiple entries
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class ADTreeNode3M
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{
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public:
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ADTreeNode3M *left, *right, *father;
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float sep;
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float data[ADTN_SIZE][3];
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int pi[ADTN_SIZE];
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int nchilds;
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ADTreeNode3M ();
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void DeleteChilds ();
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friend class ADTree3M;
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static BlockAllocator ball;
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void * operator new(size_t);
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void operator delete (void *);
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};
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class ADTree3M
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{
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ADTreeNode3M * root;
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float cmin[3], cmax[3];
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Array<ADTreeNode3M*> ela;
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public:
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ADTree3M (const float * acmin,
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const float * acmax);
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~ADTree3M ();
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void Insert (const float * p, int pi);
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void GetIntersecting (const float * bmin, const float * bmax,
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Array<int> & pis) const;
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void DeleteElement (int pi);
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void Print (ostream & ost) const
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{ PrintRec (ost, root); }
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void PrintRec (ostream & ost, const ADTreeNode3M * node) const;
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};
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class ADTreeNode3F
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{
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public:
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ADTreeNode3F *father;
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ADTreeNode3F *childs[8];
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float sep[3];
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float data[3];
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int pi;
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int nchilds;
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ADTreeNode3F ();
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void DeleteChilds ();
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friend class ADTree3F;
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static BlockAllocator ball;
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void * operator new(size_t);
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void operator delete (void *);
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};
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// fat tree
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class ADTree3F
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{
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ADTreeNode3F * root;
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float cmin[3], cmax[3];
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Array<ADTreeNode3F*> ela;
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public:
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ADTree3F (const float * acmin,
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const float * acmax);
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~ADTree3F ();
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void Insert (const float * p, int pi);
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void GetIntersecting (const float * bmin, const float * bmax,
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Array<int> & pis) const;
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void DeleteElement (int pi);
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void Print (ostream & ost) const
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{ PrintRec (ost, root); }
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void PrintRec (ostream & ost, const ADTreeNode3F * node) const;
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};
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class ADTreeNode3FM
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{
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public:
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ADTreeNode3FM *father;
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ADTreeNode3FM *childs[8];
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float sep[3];
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float data[ADTN_SIZE][3];
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int pi[ADTN_SIZE];
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int nchilds;
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ADTreeNode3FM ();
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void DeleteChilds ();
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friend class ADTree3FM;
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static BlockAllocator ball;
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void * operator new(size_t);
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void operator delete (void *);
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};
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// fat tree
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class ADTree3FM
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{
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ADTreeNode3FM * root;
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float cmin[3], cmax[3];
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Array<ADTreeNode3FM*> ela;
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public:
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ADTree3FM (const float * acmin,
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const float * acmax);
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~ADTree3FM ();
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void Insert (const float * p, int pi);
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void GetIntersecting (const float * bmin, const float * bmax,
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Array<int> & pis) const;
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void DeleteElement (int pi);
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void Print (ostream & ost) const
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{ PrintRec (ost, root); }
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void PrintRec (ostream & ost, const ADTreeNode3FM * node) const;
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};
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*/
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class ADTreeNode6
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{
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public:
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ADTreeNode6 *left, *right, *father;
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float sep;
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float data[6];
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int pi;
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int nchilds;
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ADTreeNode6 ();
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void DeleteChilds ();
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friend class ADTree6;
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static BlockAllocator ball;
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void * operator new(size_t);
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void operator delete (void *);
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};
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class ADTree6
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{
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ADTreeNode6 * root;
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float cmin[6], cmax[6];
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Array<ADTreeNode6*> ela;
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public:
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ADTree6 (const float * acmin,
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const float * acmax);
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~ADTree6 ();
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void Insert (const float * p, int pi);
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void GetIntersecting (const float * bmin, const float * bmax,
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Array<int> & pis) const;
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void DeleteElement (int pi);
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void Print (ostream & ost) const
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{ PrintRec (ost, root); }
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int Depth () const
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{ return DepthRec (root); }
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int Elements () const
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{ return ElementsRec (root); }
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void PrintRec (ostream & ost, const ADTreeNode6 * node) const;
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int DepthRec (const ADTreeNode6 * node) const;
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int ElementsRec (const ADTreeNode6 * node) const;
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void PrintMemInfo (ostream & ost) const;
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};
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template <int DIM, typename T>
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class T_ADTreeNode
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{
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public:
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T_ADTreeNode *left, *right, *father;
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float sep;
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// float data[DIM];
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Point<DIM,float> data;
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T pi;
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int nchilds;
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T_ADTreeNode ()
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{
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// pi = -1;
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SetInvalid(pi);
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left = NULL;
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right = NULL;
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father = NULL;
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nchilds = 0;
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}
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void DeleteChilds ()
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{
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if (left)
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{
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left->DeleteChilds();
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delete left;
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left = NULL;
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}
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if (right)
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{
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right->DeleteChilds();
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delete right;
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right = NULL;
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}
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}
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// friend class T_ADTree<DIM>;
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static BlockAllocator ball;
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void * operator new(size_t)
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{
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return ball.Alloc();
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}
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void operator delete (void * p)
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{
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ball.Free(p);
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}
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};
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template <int dim, typename T = INDEX>
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class T_ADTree
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{
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T_ADTreeNode<dim,T> * root;
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// float cmin[dim], cmax[dim];
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Point<dim> cmin, cmax;
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// Array<T_ADTreeNode<dim>*> ela;
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ClosedHashTable<T, T_ADTreeNode<dim,T>*> ela;
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public:
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T_ADTree (Point<dim> acmin, Point<dim> acmax);
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~T_ADTree ();
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void Insert (Point<dim> p, T pi);
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void GetIntersecting (Point<dim> bmin, Point<dim> bmax,
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Array<T> & pis) const;
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void DeleteElement (T pi);
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void Print (ostream & ost) const
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{ PrintRec (ost, root); }
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int Depth () const
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{ return DepthRec (root); }
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int Elements () const
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{ return ElementsRec (root); }
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void PrintRec (ostream & ost, const T_ADTreeNode<dim,T> * node) const;
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int DepthRec (const T_ADTreeNode<dim,T> * node) const;
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int ElementsRec (const T_ADTreeNode<dim,T> * node) const;
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void PrintMemInfo (ostream & ost) const;
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};
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/*
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class ADTreeNode6F
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{
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public:
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ADTreeNode6F * father;
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ADTreeNode6F * childs[64];
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float sep[6];
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float data[6];
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int pi;
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int nchilds;
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ADTreeNode6F ();
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void DeleteChilds ();
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friend class ADTree6F;
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static BlockAllocator ball;
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void * operator new(size_t);
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void operator delete (void *);
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};
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class ADTree6F
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{
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ADTreeNode6F * root;
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float cmin[6], cmax[6];
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Array<ADTreeNode6F*> ela;
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public:
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ADTree6F (const float * acmin,
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const float * acmax);
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~ADTree6F ();
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void Insert (const float * p, int pi);
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void GetIntersecting (const float * bmin, const float * bmax,
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Array<int> & pis) const;
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void DeleteElement (int pi);
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void Print (ostream & ost) const
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{ PrintRec (ost, root); }
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int Depth () const
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{ return DepthRec (root); }
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void PrintRec (ostream & ost, const ADTreeNode6F * node) const;
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int DepthRec (const ADTreeNode6F * node) const;
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};
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*/
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class Point3dTree
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{
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ADTree3 * tree;
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public:
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DLL_HEADER Point3dTree (const Point<3> & pmin, const Point<3> & pmax);
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DLL_HEADER ~Point3dTree ();
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DLL_HEADER void Insert (const Point<3> & p, int pi);
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void DeleteElement (int pi)
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{ tree->DeleteElement(pi); }
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DLL_HEADER void GetIntersecting (const Point<3> & pmin, const Point<3> & pmax,
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Array<int> & pis) const;
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const ADTree3 & Tree() const { return *tree; };
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};
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template <int dim, typename T = INDEX>
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class BoxTree
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{
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T_ADTree<2*dim,T> * tree;
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Point<dim> boxpmin, boxpmax;
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public:
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BoxTree (const Box<dim> & abox);
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BoxTree (const Point<dim> & apmin, const Point<dim> & apmax);
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~BoxTree ();
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void Insert (const Point<dim> & bmin, const Point<dim> & bmax, T pi);
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void Insert (const Box<dim> & box, T pi)
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{
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Insert (box.PMin(), box.PMax(), pi);
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}
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void DeleteElement (T pi)
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{ tree->DeleteElement(pi); }
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void GetIntersecting (const Point<dim> & pmin, const Point<dim> & pmax,
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Array<T> & pis) const;
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double Tolerance() const { return 1e-7 * Dist(boxpmax, boxpmin); } // single precision
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const auto & Tree() const { return *tree; };
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auto & Tree() { return *tree; };
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};
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}
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#endif
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