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mlpack/fastlib/u/nvasil/tree/old/hyper_ball.h
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2007-04-28 16:15:38 +00:00

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/*
* =====================================================================================
*
* Filename: hyper_ball.h
*
* Description:
*
* Version: 1.0
* Created: 02/11/2007 05:45:21 PM EST
* Revision: none
* Compiler: gcc
*
* Author: Nikolaos Vasiloglou (NV), nvasil@ieee.org
* Company: Georgia Tech Fastlab-ESP Lab
*
* =====================================================================================
*/
#ifndef HYPER_BALL_H_
#define HYPER_BALL_H_
#include <new>
#include <math.h>
#include <string>
#include "base/basic_types.h"
#include "computations_counter.h"
template<typename PRECISION, typename METRIC,
typename ALLOCATOR, bool diagnostic>
class HyperBall {
public:
typedef typename ALLOCATOR::template ArrayPtr<PRECISION> Array_t;
typedef HyperBall<PRECISION, METRIC, ALLOCATOR, diagnostic> HyperBall_t;
typedef METRIC Metric_t;
struct PivotData {
PivotData(){
}
PivotData(int32 dimension) : dimension_(dimension), radious_(0),
center_(dimension_), left_(dimension), right_(dimension) {
for(int32 i=0; i<dimension_; i++) {
center_[i]=0;
left_[i]=0;
right_[i]=0;
}
}
int32 dimension_;
PRECISION radious_;
Array_t center_;
Array_t left_;
Array_t right_;
};
HyperBall(PivotData &pivot_data);
~HyperBall() {};
static void *operator new(size_t size);
static void operator delete(void *p);
HyperBall_t &operator=(const HyperBall_t &);
template<typename POINTTYPE>
bool IsWithin(POINTTYPE point, int32 dimension, PRECISION range,
ComputationsCounter<diagnostic> &comp);
PRECISION IsWithin(HyperBall_t &hr,
int32 dimension,
PRECISION range,
ComputationsCounter<diagnostic> &comp);
template<typename POINTTYPE>
bool CrossesBoundaries(POINTTYPE point, int32 dimension, PRECISION range,
ComputationsCounter<diagnostic> &comp);
template<typename POINTTYPE1, typename POINTTYPE2>
static PRECISION Distance(POINTTYPE1 point1, POINTTYPE2 point2, int32 dimension);
static PRECISION Distance(HyperBall_t &hr1,
HyperBall_t &hr2,
int32 dimension,
ComputationsCounter<diagnostic> &comp);
static PRECISION Distance(HyperBall_t &hr1,
HyperBall_t &hr2,
PRECISION threshold_distance,
int32 dimension,
ComputationsCounter<diagnostic> &comp);
template<typename POINTTYPE, typename NODETYPE>
pair<typename ALLOCATOR::template Ptr<NODETYPE>,
typename ALLOCATOR::template Ptr<NODETYPE> >
ClosestChild(typename ALLOCATOR::template Ptr<NODETYPE> left,
typename ALLOCATOR::template Ptr<NODETYPE> right,
POINTTYPE point, int32 dimension,
ComputationsCounter<diagnostic> &comp);
string Print(int32 dimension);
private:
Array_t center_;
// This is the radious, not the square of the radious
PRECISION radious_;
Array_t pivot_left_;
Array_t pivot_right_;
};
#include "hyper_ball_impl.h"
#endif // HYPER_BALL_H_