A curve that is defined by regularly sampled positions. More...

Inheritance diagram for Geometry::ParametricCurve:

Public Member Functions
virtual Coord3	computePosition (float) const =0
virtual Coord3	computeTangent (float) const =0
virtual bool	findClosestPosition (float &p, const Coord3 &, float eps=1e-2) const
virtual bool	findClosestIntersection (float &p, const Plane3 &, float eps=1e-2) const
virtual bool	isCircular () const
void	getPosIDs (TypeSet< GeomPosID > &, bool=true) const
virtual bool	insertPosition (GeomPosID, const Coord3 &)=0
virtual StepInterval< int >	parameterRange () const =0

Detailed Description

A curve that is defined by regularly sampled positions.

The curve's behaviour between the positions is determined by a function of a parameter u: (x(u), y(u), z(u)). The samplerange is determined by parameterRange(). The curve is guaranteed to be continious within its parameter range, and if isCircular() returns true, it connects between parameterRange().stop and parameterRange().start.

Member Function Documentation

virtual Coord3 Geometry::ParametricCurve::computePosition ( float ) const [pure virtual]

Computes the position between two samples

Implemented in Geometry::CubicBezierCurve.

virtual Coord3 Geometry::ParametricCurve::computeTangent ( float ) const [pure virtual]

Note:: the tangent is scaled so the components (x, y, z) forms the derivatives: (dx/du, dy/du, dz/du ).

Implemented in Geometry::CubicBezierCurve.

virtual bool Geometry::ParametricCurve::findClosestIntersection	(	float &	p,
		const Plane3 &	,
		float	eps = `1e-2`
	)			const `[virtual]`

Iterates over the curve to find the closest intersection.

Parameters:

	eps	the allowed error in parameter space
	p	The initial position and the returned intersection. If undef on start, the closest defined position will be used as start

virtual bool Geometry::ParametricCurve::findClosestPosition	(	float &	p,
		const Coord3 &	,
		float	eps = `1e-2`
	)			const `[virtual]`

Iterates over the curve to find the closest position

Parameters:

	eps	the allowed error in parameter space
	p	The initial position and the returned best position. If undef on start, the closest defined position will be used as start

void Geometry::ParametricCurve::getPosIDs	(	TypeSet< GeomPosID > &	,
		bool	= `true`
	)			const `[virtual]`

Returns a list with all defined positions.

Implements Geometry::Element.

virtual bool Geometry::ParametricCurve::insertPosition	(	GeomPosID	,
		const Coord3 &
	)			`[pure virtual]`

Implemented in Geometry::CubicBezierCurve.

virtual bool Geometry::ParametricCurve::isCircular ( ) const [inline, virtual]

If true, the curve is connected between parameterRange().stop and parameterRange().start.

Reimplemented in Geometry::CubicBezierCurve.

virtual StepInterval<int> Geometry::ParametricCurve::parameterRange ( ) const [pure virtual]

Implemented in Geometry::CubicBezierCurve.

Geometry::ParametricCurve Class Reference

Public Member Functions

Detailed Description

Member Function Documentation