GEO::LocalFeatureSize Class Reference

Computes an approximation of lfs (local feature size). More...

#include <geogram/delaunay/LFS.h>

Public Member Functions
	LocalFeatureSize (index_t nb_pts, const double *pts)
	Initializes lfs computation. More...
double	squared_lfs (const double *p) const
	Computes the squared local feature size at a query point. More...
index_t	nb_poles () const
	Gets the number of poles. More...
const double *	pole (index_t i) const
	Gets a reference to a pole. More...

Protected Member Functions
void	init (index_t nb_pts, const double *pts)
	Constructs the internal representation used to compute the local feature size. More...

Detailed Description

Computes an approximation of lfs (local feature size).

Given a surface S and a point p in R^3, lfs(p) corresponds to the distance between p and the medial axis of S. Given a sampling of S, this class computes the distance to the nearest pole (a good approximation of lfs, see Amenta and Bern's paper).

Definition at line 61 of file LFS.h.

Constructor & Destructor Documentation

LocalFeatureSize()

GEO::LocalFeatureSize::LocalFeatureSize ( index_t  nb_pts, const double *  pts  )

inline

Initializes lfs computation.

Parameters

[in]	nb_pts	number of points
[in]	pts	a sampling of the surface, represented by a contiguous array of doubles.

Definition at line 69 of file LFS.h.

Member Function Documentation

init()

void GEO::LocalFeatureSize::init ( index_t  nb_pts, const double *  pts  )

protected

Constructs the internal representation used to compute the local feature size.

Parameters

[in]	nb_pts	number of points
[in]	pts	pointer to the points coordinates, as a contiguous array of doubles.

nb_poles()

index_t GEO::LocalFeatureSize::nb_poles ( ) const

inline

Gets the number of poles.

Returns

the number of poles.

Definition at line 92 of file LFS.h.

pole()

const double* GEO::LocalFeatureSize::pole ( index_t  i ) const

inline

Gets a reference to a pole.

Parameters

[in]

i

the index of the pole

Returns

a const pointer to the three coordinates of the i th pole

Precondition

i < nb_poles()

Definition at line 103 of file LFS.h.

squared_lfs()

double GEO::LocalFeatureSize::squared_lfs ( const double *  p ) const

inline

Computes the squared local feature size at a query point.

Parameters

[in]

p

the query point

Returns

approximate squared local feature size at point p.

Definition at line 79 of file LFS.h.

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The documentation for this class was generated from the following file:

• geogram/delaunay/LFS.h