Ra::Core::Geometry::PolyLine Class Reference

#include <Core/Geometry/PolyLine.hpp>

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Public Member Functions
	PolyLine (const Vector3Array &pt)
	Create a polyline from a given set of points.
const Vector3Array &	getPoints () const
	Get the point vector.
void	getSegment (uint segment, Vector3 &aOut, Vector3 &abOut) const
	Get the ith segment AB as starting point A and vector AB.
const Vector3Array &	getSegmentVectors () const
	Get the segment vector ( Pi+1 - Pi)
Aabb	aabb () const
	Get the aabb of the polyline.
Scalar	length () const
	Get the total length of the line .
void	setPoints (const Vector3Array &pt)
	Update the points of the polyline.
Scalar	squaredDistance (const Vector3 &p) const
	Return the squared distance between the line and a given point p.
Scalar	distance (const Vector3 &p) const
	Return the distance between the line and a given point p.
Scalar	projectOnSegment (const Vector3 &p, uint segment) const
uint	getNearestSegment (const Vector3 &p) const
	Returns the index of the nearest segment.
uint	getSegmentIndex (Scalar t) const
	Returns the index of the segment to which t belons.
Scalar	project (const Vector3 &p) const
Vector3	f (Scalar t) const

Protected Member Functions
void	update ()
	Update the precomputed values after new points have been set.
Scalar	getLineParameter (uint segment, Scalar tSegment) const

Detailed Description

A parametrized polyline, i.e. a continuous polygonal chain of segments. Points go from P0 to Pn. The ith segments joins Pi and Pi+1.

Definition at line 14 of file PolyLine.hpp.

Member Function Documentation

f()

Vector3 Ra::Core::Geometry::PolyLine::f

(

Scalar

t

)

const

Return a point on the line corresponding to parameter t in [0;1]. Values of t below 0 map to the first point, and values above 1 to the last.

Definition at line 91 of file PolyLine.cpp.

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getLineParameter()

Scalar Ra::Core::Geometry::PolyLine::getLineParameter ( uint  segment, Scalar  tSegment  ) const

inlineprotected

Given a point on one of the segments identified by parameter tSegment in [0,1] and segment number, return the t in [0,1] corresponding to the same point in the whole line parametrization.

Definition at line 97 of file PolyLine.hpp.

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project()

Scalar Ra::Core::Geometry::PolyLine::project

(

const Vector3 &

p

)

const

Returns the parameter t in [0,1] corresponding to the point on the line which is the closest point from p.

Definition at line 49 of file PolyLine.cpp.

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projectOnSegment()

Scalar Ra::Core::Geometry::PolyLine::projectOnSegment	(	const Vector3 &	p,
		uint	segment
	)		const

Returns the parameter t in [0,1] corresponding to the point on the ith segment closest from point p.

Definition at line 43 of file PolyLine.cpp.

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

• /home/runner/work/Radium-Engine/Radium-Engine/src/Radium-Engine/src/Core/Geometry/PolyLine.hpp
• /home/runner/work/Radium-Engine/Radium-Engine/src/Radium-Engine/src/Core/Geometry/PolyLine.cpp