HomgLine2D Class Reference

#include <HomgLine2D.h>

Inheritance diagram for HomgLine2D:

List of all members.

Public Member Functions
	HomgLine2D ()
	HomgLine2D (const HomgLine2D &that)
	HomgLine2D (double px, double py, double pw)
	HomgLine2D (const vnl_double_3 &vector_ptr)
	~HomgLine2D ()
HomgLine2D &	operator= (const HomgLine2D &that)
bool	ideal (double tol=1e-12) const
	Return true iff the line is the line at infinity.
HomgLineSeg2D	clip (int x0, int y0, int x1, int y1) const
	Construct an ImplicitLine by clipping against the given bounding rectangle.
void	get_2_points_on_line (HomgPoint2D *p1, HomgPoint2D *p2) const
	Return some two points which are on the line.
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 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.

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Detailed Description

Definition at line 26 of file HomgLine2D.h.

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Constructor & Destructor Documentation

HomgLine2D::HomgLine2D

(

)

[inline]

Definition at line 30 of file HomgLine2D.h.

HomgLine2D::HomgLine2D

(

const HomgLine2D &

that

)

[inline]

Definition at line 31 of file HomgLine2D.h.

HomgLine2D::HomgLine2D	(	double	px,
		double	py,
		double	pw
	)		[inline]

Definition at line 32 of file HomgLine2D.h.

HomgLine2D::HomgLine2D

(

const vnl_double_3 &

vector_ptr

)

[inline, explicit]

Definition at line 33 of file HomgLine2D.h.

HomgLine2D::~HomgLine2D

(

)

[inline]

Definition at line 34 of file HomgLine2D.h.

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Member Function Documentation

vnl_double_3& Homg2D::asVector

(

)

[inline, inherited]

Definition at line 59 of file Homg2D.h.

HomgLineSeg2D HomgLine2D::clip	(	int	rect1_x,
		int	rect1_y,
		int	rect2_x,
		int	rect2_y
	)		const

Construct an ImplicitLine by clipping against the given bounding rectangle.

The return line has been allocated using new.

Definition at line 22 of file HomgLine2D.cxx.

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.

void HomgLine2D::get_2_points_on_line	(	HomgPoint2D *	p1,
		HomgPoint2D *	p2
	)		const

Return some two points which are on the line.

The algorithm actually returns an orthonormal basis for the nullspace of l.

Definition at line 31 of file HomgLine2D.cxx.

vnl_double_3 Homg2D::get_vector

(

)

const [inline, inherited]

Definition at line 58 of file Homg2D.h.

bool HomgLine2D::ideal

(

double

tol = 1e-12

)

const [inline]

Return true iff the line is the line at infinity.

If tol == 0, x() and y() must be exactly 0. Otherwise, tol is used as tolerance value (default: 1e-12), and is checked.

Definition at line 46 of file HomgLine2D.h.

HomgLine2D& HomgLine2D::operator=

(

const HomgLine2D &

that

)

[inline]

Definition at line 36 of file HomgLine2D.h.

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.

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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.

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

• contrib/oxl/mvl/HomgLine2D.h
• contrib/oxl/mvl/HomgLine2D.cxx