NAME

SbLine — directed line in 3D

INHERITS FROM

SbLine

SYNOPSIS

#include <Inventor/SbLinear.h>

Methods from class SbLine:

SbLine()

SbLine(const SbVec3f &p0, const SbVec3f &p1)

void setValue(const SbVec3f &p0, const SbVec3f &p1)

SbBool getClosestPoints(const SbLine &line2, SbVec3f &ptOnThis, SbVec3f &ptOnLine2 ) const

SbVec3f getClosestPoint(const SbVec3f &point) const

const SbVec3f & getPosition() const

const SbVec3f & getDirection() const

DESCRIPTION

Represents a directed line in 3D. This is a basic Inventor datatype that is used for representing a 3D line. It is used as input and output by a variety of Inventor classes.

METHODS

SbLine()

SbLine(const SbVec3f &p0, const SbVec3f &p1)

Constructors. To construct a line from a position and direction, use: SbLine(p0, p0 + dir). The line is directed from p0 to p1.

void setValue(const SbVec3f &p0, const SbVec3f &p1)

Sets line to pass through points p0 and p1.

SbBool getClosestPoints(const SbLine &line2, SbVec3f &ptOnThis, SbVec3f &ptOnLine2 ) const

Finds the two closest points between this line and line2, and loads them into ptOnThis and ptOnLine2. Returns FALSE if the lines are parallel (results undefined), and returns TRUE otherwise.

SbVec3f getClosestPoint(const SbVec3f &point) const

Returns the closest point on the line to the given point.

const SbVec3f & getPosition() const

const SbVec3f & getDirection() const

Returns position of line origin point and direction vector of line.

SEE ALSO

SbVec3f, SbPlane