Line Class Reference

#include <ImFusion/Core/Geometry/Line.h>

Class representing a full line, i.e. More...

Inheritance diagram for Line:

Detailed Description

Class representing a full line, i.e.

one of infinite length.

See also

Intersections between geometry primitives can be computed using the sets of free functions Geometry::intersection() and Geometry::intersects().

Public Member Functions
	Line (const vec3 &point, const vec3 &direction)
	Creates a line going through point along direction.
	Line (const Line &)=default
Line &	operator= (const Line &)=default
vec3	direction () const override
	Returns the normalized direction vector.
bool	isApprox (const Line &) const
	Comparison using the same epsilon as Eigen::isApprox.
Utils::Variant< LineSegment, vec3, std::nullptr_t >	shortestConnectingLine (const LineBase &l) const
	Returns the shortest connection to l as a LineSegment.
double	clampLambda (double lambda) const override
	Returns the input without doing anything, since this line has no end points.
Public Member Functions inherited from LineBase
const vec3 &	point () const
	Returns a point on the line.
vec3	closestPoint (const vec3 &p) const
	Returns the point on the line closest to p.
double	distanceToPoint (const vec3 &p) const
	Returns the L2 distance between p and the closest point on the line.
bool	includesPoint (const vec3 &p) const
	Returns if the distance between p and the closest point on the line is less than epsilon.
std::vector< vec3 >	cylinderWallIntersection (const Line &axis, double radius) const
	Computes the intersection points with the outer wall of a cylinder of infinite length, specified by radius and central axis.
double	pointToLambda (const vec3 &p) const
	Projects p onto the (extended) line and returns the unclamped lambda.
vec3	lambdaToPoint (double lambda) const
	Returns point() + lambda*direction()

Protected Attributes
vec3	m_direction
	Normalized direction.
Protected Attributes inherited from LineBase
vec3	m_point
	A point on the line.
bool	operator== (const Line &) const
	Exact comparisons.
bool	operator!= (const Line &) const

Additional Inherited Members
Protected Member Functions inherited from LineBase
	LineBase (const vec3 &p)

Member Function Documentation

direction()

vec3 direction ( ) const

overridevirtual

Returns the normalized direction vector.

Implements LineBase.

shortestConnectingLine()

Utils::Variant< LineSegment, vec3, std::nullptr_t > shortestConnectingLine

(

const LineBase &

l

)

const

Returns the shortest connection to l as a LineSegment.

If the objects intersect or overlap, a point on both lines is returned instead. Empty return indicates that either object is not well defined, i.e. contains NAN.

clampLambda()

double clampLambda ( double lambda ) const

overridevirtual

Returns the input without doing anything, since this line has no end points.

Implements LineBase.

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

• ImFusion/Core/Geometry/Line.h