3dpcp/.svn/pristine/91/91b33c2ba6ec5bce5614c2794ae7e5510bcb2635.svn-base
2012-10-29 15:03:12 +01:00

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/**
* @file
* @brief Representation of a general search trees
* @author Andreas Nuechter. Institute of Computer Science, University of Osnabrueck, Germany.
*/
#ifndef __SEARCHTREE_H__
#define __SEARCHTREE_H__
#include <vector>
using std::vector;
#include "ptpair.h"
#include "data_types.h"
/**
* @brief The tree structure
*
* A tree holds the pointer to the data
**/
class Tree {
public:
/**
* Destructor - deletes the tree
* pure virtual, i.e., must be implented by a derived class
*/
virtual inline ~Tree() {};
};
class Scan;
/**
* @brief The search tree structure
*
* A search tree holds the pointer to the data.
* Furthermore, search functionality must be privided
**/
class SearchTree : public Tree {
friend class Scan;
public:
/**
* Constructor (default)
*/
inline SearchTree() {};
/**
* Constructor - Constructs a tree from the input.
* must be implented by a derived class
* @param pts 3D array of points
* @param n number of points
*/
SearchTree(double **pts, int n);
/**
* Destructor - deletes the tree
* virtual, i.e., must be implented by a derived class
*/
virtual inline ~SearchTree() {};
/**
* Aquire a lock on this tree, signaling that its resources are in use. Neccessary for cached data in the scanserver.
*/
virtual inline void lock() {};
/**
* Release the lock on this tree, signaling that its resources are aren't in use anymore. Neccessary for cached data in the scanserver.
*/
virtual inline void unlock() {};
/**
* This Search function returns a pointer to the closest point
* of the query point within maxdist2. If there if no such point
* a 0-pointer might be returned.
*
* @param _p Pointer to query point
* @param maxdist2 Maximal distance for closest points
* @param threadNum If parallel threads share the search tree the thread num must be given
* @return Pointer to closest point
*/
virtual double *FindClosest(double *_p, double maxdist2, int threadNum = 0) const = 0 ;
virtual void getPtPairs(vector <PtPair> *pairs,
double *source_alignxf,
double * const *q_points, unsigned int startindex, unsigned int endindex,
int thread_num,
int rnd, double max_dist_match2, double &sum,
double *centroid_m, double *centroid_d);
virtual void getPtPairs(vector <PtPair> *pairs,
double *source_alignxf,
const DataXYZ& xyz_r, unsigned int startindex, unsigned int endindex,
int thread_num,
int rnd, double max_dist_match2, double &sum,
double *centroid_m, double *centroid_d);
};
#endif