#include <line.h>

Public Member Functions
	GfLine ()
	The default constructor leaves line parameters undefined. More...

	GfLine (const GfVec3d &p0, const GfVec3d &dir)
	Construct a line from a point and a direction. More...

double	Set (const GfVec3d &p0, const GfVec3d &dir)

GfVec3d	GetPoint (double t) const

const GfVec3d &	GetDirection () const
	Return the normalized direction of the line. More...

GF_API GfVec3d	FindClosestPoint (const GfVec3d &point, double *t=NULL) const

bool	operator== (const GfLine &l) const

bool	operator!= (const GfLine &r) const

Friends
GF_API friend bool	GfFindClosestPoints (const GfLine &, const GfLine &, GfVec3d , GfVec3d , double , double )

Detailed Description

Basic type: 3D line

This class represents a three-dimensional line in space. Lines are constructed from a point, p0, and a direction, dir. The direction is normalized in the constructor.

The line is kept in a parametric represention, p = p0 + t * dir.

Definition at line 49 of file line.h.

Constructor & Destructor Documentation

GfLine::GfLine ( )

inline

The default constructor leaves line parameters undefined.

Definition at line 54 of file line.h.

GfLine::GfLine	(	const GfVec3d &	p0,
		const GfVec3d &	dir
	)

inline

Construct a line from a point and a direction.

Definition at line 58 of file line.h.

Member Function Documentation

GF_API GfVec3d GfLine::FindClosestPoint	(	const GfVec3d &	point,
		double *	t = `NULL`
	)		const

Returns the point on the line that is closest to point. If t is not NULL, it will be set to the parametric distance along the line of the returned point.

const GfVec3d& GfLine::GetDirection ( ) const

inline

Return the normalized direction of the line.

Definition at line 73 of file line.h.

GfVec3d GfLine::GetPoint ( double t ) const

inline

Return the point on the line at ( p0 + t * dir ). Remember dir has been normalized so t represents a unit distance.

Definition at line 70 of file line.h.

bool GfLine::operator!= ( const GfLine & r ) const

inline

Component-wise inequality test. The starting points, and directions must match exactly for lines to be considered equal.

Definition at line 89 of file line.h.

bool GfLine::operator== ( const GfLine & l ) const

inline

Component-wise equality test. The starting points and directions, must match exactly for lines to be considered equal.

Definition at line 83 of file line.h.

double GfLine::Set	(	const GfVec3d &	p0,
		const GfVec3d &	dir
	)

inline

Definition at line 62 of file line.h.

Friends And Related Function Documentation

GF_API friend bool GfFindClosestPoints	(	const GfLine &	,
		const GfLine &	,
		GfVec3d *	,
		GfVec3d *	,
		double *	,
		double *
	)

friend

Computes the closets points between two lines.

The two points are returned in p1 and p2. The parametric distance of each point on the lines is returned in t1 and t2.

This returns false if the lines were close enough to parallel that no points could be computed; in this case, the other return values are undefined.

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

pxr/base/gf/line.h

Public Member Functions

Friends

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation