GEO::PrincipalAxes3d Class Reference

#include <geogram/points/principal_axes.h>

Public Member Functions
	PrincipalAxes3d ()
	PrincipalAxes3d constructor.
void	begin ()
	Begins a principal axes estimation.
void	end ()
	Ends a principal axes estimation.
void	add_point (const vec3 &p, double weight=1.0)
	Adds a point to the current principal axes estimation. More...
vec3	center () const
	Gets the center. More...
const vec3 &	axis (index_t i) const
	Gets one of the axes. More...
double	eigen_value (index_t i) const
	Gets one of the eigenvalues. More...
vec3	normal () const
	Gets the estimated normal to the point cloud. More...

Detailed Description

PrincipalAxes3d enables the center and inertia axes of a cloud of 3d points to be computed.

Definition at line 61 of file principal_axes.h.

Member Function Documentation

add_point()

void GEO::PrincipalAxes3d::add_point	(	const vec3 &	p,
		double	weight = 1.0
	)

Adds a point to the current principal axes estimation.

Parameters

[in]	p	the current point
[in]	weight	an optional weight

axis()

const vec3& GEO::PrincipalAxes3d::axis ( index_t  i ) const

inline

Gets one of the axes.

Can be called only after end_points().

Parameters

[in]

i

one of 0,1,2

Returns

the axis.

Definition at line 101 of file principal_axes.h.

center()

vec3 GEO::PrincipalAxes3d::center ( ) const

inline

Gets the center.

Can be called only after end_points().

Returns

the center of the point cloud.

Definition at line 91 of file principal_axes.h.

eigen_value()

double GEO::PrincipalAxes3d::eigen_value ( index_t  i ) const

inline

Gets one of the eigenvalues.

Can be called only after end_points().

Parameters

[in]

i

one of 0,1,2

Returns

the eigenvalue.

Definition at line 111 of file principal_axes.h.

normal()

vec3 GEO::PrincipalAxes3d::normal ( ) const

inline

Gets the estimated normal to the point cloud.

Equivalent to axis(2).

Returns

the estimated normal.

Definition at line 120 of file principal_axes.h.

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

• geogram/points/principal_axes.h