Geometry::ParametricCurve Class Reference

A curve that is defined by regularly sampled positions.
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Inheritance diagram for Geometry::ParametricCurve:

Public Member Functions
	~ParametricCurve ()
virtual Coord3	computePosition (float) const =0
virtual Coord3	computeTangent (float) const =0
Iterator *	createIterator () const override
virtual bool	findClosestIntersection (float &p, const Plane3 &, float eps=1e-2) const
virtual bool	findClosestPosition (float &p, const Coord3 &, float eps=1e-2) const
void	getPosIDs (TypeSet< GeomPosID > &, bool=true) const override
virtual bool	insertPosition (GeomPosID, const Coord3 &)=0
virtual bool	isCircular () const
virtual StepInterval< int >	parameterRange () const =0
Public Member Functions inherited from Geometry::Element
	Element ()
virtual	~Element ()
void	blockCallBacks (bool yn, bool flush=true)
bool	blocksCallBacks () const
virtual IntervalND< float >	boundingBox (bool approx) const
virtual Element *	clone () const =0
virtual uiString	errMsg () const
virtual Coord3	getPosition (GeomPosID) const =0
virtual bool	isChanged () const
virtual bool	isDefined (GeomPosID) const =0
virtual void	resetChangedFlag ()
virtual bool	setPosition (GeomPosID, const Coord3 &)=0
virtual void	trimUndefParts ()
Public Member Functions inherited from CallBacker
	CallBacker ()
	CallBacker (const CallBacker &)
virtual	~CallBacker ()
bool	attachCB (const NotifierAccess &, const CallBack &, bool onlyifnew=false) const
bool	attachCB (const NotifierAccess *notif, const CallBack &cb, bool onlyifnew=false) const
void	detachAllNotifiers () const
	Call from the destructor of your inherited object. More...
void	detachCB (const NotifierAccess &, const CallBack &) const
void	detachCB (const NotifierAccess *notif, const CallBack &cb) const
virtual bool	isCapsule () const
bool	isNotifierAttached (const NotifierAccess *) const
	Only for debugging purposes, don't use. More...
void	stopReceivingNotifications () const
virtual CallBacker *	trueCaller ()

Protected Member Functions
	ParametricCurve ()
Protected Member Functions inherited from Geometry::Element
uiString &	errmsg ()
void	triggerMovement ()
void	triggerMovement (const GeomPosID &)
void	triggerMovement (const TypeSet< GeomPosID > &)
void	triggerNrPosCh ()
void	triggerNrPosCh (const GeomPosID &)
void	triggerNrPosCh (const TypeSet< GeomPosID > &)

Additional Inherited Members
Static Public Member Functions inherited from CallBacker
static void	createReceiverForCurrentThread ()
static void	removeReceiverForCurrentThread ()
Public Attributes inherited from Geometry::Element
CNotifier< Element, const TypeSet< GeomPosID > * >	movementnotifier
CNotifier< Element, const TypeSet< GeomPosID > * >	nrpositionnotifier
Protected Attributes inherited from Geometry::Element
bool	blockcbs_
bool	ischanged_
TypeSet< GeomPosID >	movementbuffer_
TypeSet< GeomPosID >	nrposchbuffer_

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.

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Constructor & Destructor Documentation

~ParametricCurve()

Geometry::ParametricCurve::~ParametricCurve

(

)

ParametricCurve()

Geometry::ParametricCurve::ParametricCurve ( )

protected

Member Function Documentation

computePosition()

virtual Coord3 Geometry::ParametricCurve::computePosition ( float  ) const

pure virtual

Computes the position between two samples

Implemented in Geometry::CubicBezierCurve.

computeTangent()

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.

createIterator()

Iterator* Geometry::ParametricCurve::createIterator ( ) const

overridevirtual

Implements Geometry::Element.

findClosestIntersection()

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

findClosestPosition()

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

getPosIDs()

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

overridevirtual

Returns a list with all defined positions.

Reimplemented from Geometry::Element.

insertPosition()

virtual bool Geometry::ParametricCurve::insertPosition ( GeomPosID  , const Coord3 &    )

pure virtual

Implemented in Geometry::CubicBezierCurve.

isCircular()

virtual bool Geometry::ParametricCurve::isCircular ( ) const

inlinevirtual

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

Reimplemented in Geometry::CubicBezierCurve.

parameterRange()

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

pure virtual

Implemented in Geometry::CubicBezierCurve.