#include <HomgPoint2D.h>

Inheritance diagram for HomgPoint2D:

Public Member Functions
	HomgPoint2D ()
	HomgPoint2D (const HomgPoint2D &that)
	HomgPoint2D (double px, double py, double pw=1.0)
	HomgPoint2D (const vnl_double_3 &vector_ptr)
HomgPoint2D &	operator= (const HomgPoint2D &that)
bool	ideal (double tol=1e-12) const
	Return true iff the point is the point at infinity.
bool	get_nonhomogeneous (double &px, double &py) const
	Return the non-homogeneous coordinates of the point.
vnl_double_2	get_double2 () const
	returns a non-homogeneous vnl_vector of length 2.
vnl_double_2	get_nonhomogeneous () const
bool	rescale_w (double new_w=1.0)
	Rescale point (defaults to w = 1).
HomgPoint2D	get_unitized () const
	returns a unit-norm scaled copy of this.
vnl_double_3	get_vector () const
vnl_double_3 &	asVector ()
void	get (double x_ptr, double y_ptr, double *w_ptr) const
	Retrieve components. Do not attempt to write into null pointers.

double	x () const
	Return x.
double &	x ()
	Return reference to x.
double	y () const
	Return y.
double &	y ()
	Return reference to y.
double	w () const
	Return w.
double &	w ()
	Return reference to w.
void	set (double px, double py, double pw)
	Set x,y,w.
void	set (const vnl_vector_fixed< double, 3 > &v)
	Set from vector.
void	set (const vnl_vector< double > &v)
	Set from vector.
void	set (unsigned int index, double v)
	Set element.
Static Public Member Functions
static HomgPoint2D	read (vcl_istream &, bool is_homogeneous=false)
	read from vcl_istream. Default is to assume that points are nonhomogeneous.
static void	set_infinitesimal_tol (double tol)
	Static method to set the default tolerance used for infinitesimal checks.
Static Public Attributes
static double	infinity = 1.7976931348623157E+308
	Standard placeholder for methods that wish to return infinity.
static double	infinitesimal_tol = 1e-12
	The tolerance used in "near zero" tests in the Homg subclasses.

Detailed Description

Definition at line 24 of file HomgPoint2D.h.

Constructor & Destructor Documentation

HomgPoint2D::HomgPoint2D ( ) [inline]

Definition at line 29 of file HomgPoint2D.h.

HomgPoint2D::HomgPoint2D ( const HomgPoint2D & that ) [inline]

Definition at line 30 of file HomgPoint2D.h.

HomgPoint2D::HomgPoint2D	(	double	px,
		double	py,
		double	pw = `1.0`
	)		`[inline]`

Definition at line 31 of file HomgPoint2D.h.

HomgPoint2D::HomgPoint2D ( const vnl_double_3 & vector_ptr ) [inline]

Definition at line 32 of file HomgPoint2D.h.

Member Function Documentation

vnl_double_3& Homg2D::asVector ( ) [inline, inherited]

Definition at line 59 of file Homg2D.h.

void Homg2D::get	(	double *	x_ptr,
		double *	y_ptr,
		double *	w_ptr
	)		const `[inline, inherited]`

Retrieve components. Do not attempt to write into null pointers.

Definition at line 62 of file Homg2D.h.

vnl_double_2 HomgPoint2D::get_double2 ( ) const

returns a non-homogeneous vnl_vector of length 2.

Definition at line 38 of file HomgPoint2D.cxx.

bool HomgPoint2D::get_nonhomogeneous	(	double &	ex,
		double &	ey
	)		const

Return the non-homogeneous coordinates of the point.

If the point is at infinity, return false.

Definition at line 18 of file HomgPoint2D.cxx.

vnl_double_2 HomgPoint2D::get_nonhomogeneous ( ) const [inline]

Definition at line 54 of file HomgPoint2D.h.

HomgPoint2D HomgPoint2D::get_unitized ( ) const

returns a unit-norm scaled copy of this.

Definition at line 71 of file HomgPoint2D.cxx.

vnl_double_3 Homg2D::get_vector ( ) const [inline, inherited]

Definition at line 58 of file Homg2D.h.

bool HomgPoint2D::ideal ( double tol = 1e-12 ) const [inline]

Return true iff the point is the point at infinity.

If tol == 0, w() must be exactly 0. Otherwise, tol is used as tolerance value (default: 1e-12), and $|w| <= \mbox{tol} \times min(|x|,|y|)$ is checked.

Definition at line 46 of file HomgPoint2D.h.

HomgPoint2D& HomgPoint2D::operator= ( const HomgPoint2D & that ) [inline]

Definition at line 34 of file HomgPoint2D.h.

HomgPoint2D HomgPoint2D::read	(	vcl_istream &	is,
		bool	is_homogeneous = `false`
	)		`[static]`

read from vcl_istream. Default is to assume that points are nonhomogeneous.

2D, set is_homogeneous to true if points are already in homogeneous form.

Definition at line 108 of file HomgPoint2D.cxx.

bool HomgPoint2D::rescale_w ( double new_w = 1.0 )

Rescale point (defaults to w = 1).

If the point is at infinity, return false

Definition at line 50 of file HomgPoint2D.cxx.

void Homg2D::set	(	double	px,
		double	py,
		double	pw
	)		`[inline, inherited]`

Set x,y,w.

Definition at line 96 of file Homg2D.h.

void Homg2D::set ( const vnl_vector_fixed< double, 3 > & v ) [inline, inherited]

Set from vector.

Definition at line 104 of file Homg2D.h.

void Homg2D::set ( const vnl_vector< double > & v ) [inline, inherited]

Set from vector.

Definition at line 107 of file Homg2D.h.

void Homg2D::set	(	unsigned int	index,
		double	v
	)		`[inline, inherited]`

Set element.

Definition at line 110 of file Homg2D.h.

static void Homg::set_infinitesimal_tol ( double tol ) [static, inherited]

Static method to set the default tolerance used for infinitesimal checks.

The default is 1e-12.

double Homg2D::w ( ) const [inline, inherited]

Return w.

Definition at line 82 of file Homg2D.h.

double& Homg2D::w ( ) [inline, inherited]

Return reference to w.

Definition at line 84 of file Homg2D.h.

double Homg2D::x ( ) const [inline, inherited]

Return x.

Definition at line 72 of file Homg2D.h.

double& Homg2D::x ( ) [inline, inherited]

Return reference to x.

Definition at line 74 of file Homg2D.h.

double Homg2D::y ( ) const [inline, inherited]

Return y.

Definition at line 77 of file Homg2D.h.

double& Homg2D::y ( ) [inline, inherited]

Return reference to y.

Definition at line 79 of file Homg2D.h.

Member Data Documentation

double Homg::infinitesimal_tol = 1e-12 [static, inherited]

The tolerance used in "near zero" tests in the Homg subclasses.

Definition at line 32 of file Homg.h.

double Homg::infinity = 1.7976931348623157E+308 [static, inherited]

Standard placeholder for methods that wish to return infinity.

Definition at line 29 of file Homg.h.

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

contrib/oxl/mvl/HomgPoint2D.h
contrib/oxl/mvl/HomgPoint2D.cxx

Public Member Functions

Static Public Member Functions

Static Public Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation