#include <HomgLineSeg2D.h>

Inheritance diagram for HomgLineSeg2D:

Public Member Functions
	HomgLineSeg2D ()
	HomgLineSeg2D (const HomgPoint2D &point1, const HomgPoint2D &point2)
	Constructor forming linesegment from start and end points.
	HomgLineSeg2D (double x0, double y0, double x1, double y1)
	Constructor forming linesegment (x0,y0) -> (x1,y1).
	~HomgLineSeg2D ()
const HomgLine2D &	get_line () const
	Return the line through the two points.
const HomgPoint2D &	get_point1 () const
	Return the first point of the line segment.
const HomgPoint2D &	get_point2 () const
	Return the second point of the line segment.
void	set (const HomgPoint2D &point1, const HomgPoint2D &point2)
	Set the line segment given two points.
double	picking_distance (const HomgPoint2D &point1) const
	Return distance to nearest point contained in lineseg.
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.
Private Attributes
HomgPoint2D	point1_
HomgPoint2D	point2_

Detailed Description

Definition at line 23 of file HomgLineSeg2D.h.

Constructor & Destructor Documentation

HomgLineSeg2D::HomgLineSeg2D ( ) [inline]

Definition at line 31 of file HomgLineSeg2D.h.

HomgLineSeg2D::HomgLineSeg2D	(	const HomgPoint2D &	point1,
		const HomgPoint2D &	point2
	)

Constructor forming linesegment from start and end points.

Definition at line 18 of file HomgLineSeg2D.cxx.

HomgLineSeg2D::HomgLineSeg2D	(	double	x0,
		double	y0,
		double	x1,
		double	y1
	)

Constructor forming linesegment (x0,y0) -> (x1,y1).

Definition at line 29 of file HomgLineSeg2D.cxx.

HomgLineSeg2D::~HomgLineSeg2D ( ) [inline]

Definition at line 34 of file HomgLineSeg2D.h.

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 `[inherited]`

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 `[inherited]`

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.

const HomgLine2D & HomgLineSeg2D::get_line ( ) const [inline]

Return the line through the two points.

Definition at line 53 of file HomgLineSeg2D.h.

const HomgPoint2D & HomgLineSeg2D::get_point1 ( ) const [inline]

Return the first point of the line segment.

Definition at line 61 of file HomgLineSeg2D.h.

const HomgPoint2D & HomgLineSeg2D::get_point2 ( ) const [inline]

Return the second point of the line segment.

Definition at line 69 of file HomgLineSeg2D.h.

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, inherited]

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 $max(|x|,|y|) <= \mbox{tol} \times |w|$ is checked.

Definition at line 46 of file HomgLine2D.h.

double HomgLineSeg2D::picking_distance ( const HomgPoint2D & point1 ) const

Return distance to nearest point contained in lineseg.

Definition at line 77 of file HomgLineSeg2D.cxx.

void HomgLineSeg2D::set	(	const HomgPoint2D &	point1,
		const HomgPoint2D &	point2
	)

Set the line segment given two points.

Definition at line 39 of file HomgLineSeg2D.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.

HomgPoint2D HomgLineSeg2D::point1_ [private]

Definition at line 25 of file HomgLineSeg2D.h.

HomgPoint2D HomgLineSeg2D::point2_ [private]

Definition at line 26 of file HomgLineSeg2D.h.

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

contrib/oxl/mvl/HomgLineSeg2D.h
contrib/oxl/mvl/HomgLineSeg2D.cxx

Public Member Functions

Static Public Member Functions

Static Public Attributes

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation