#include <GeNurbCurve2d.h>

Inheritance diagram for OdGeNurbCurve2d:

Public Member Functions
	OdGeNurbCurve2d ()

	OdGeNurbCurve2d (const OdGeNurbCurve2d &source)

	OdGeNurbCurve2d (int degree, const OdGeKnotVector &knots, const OdGePoint2dArray &controlPoints, bool isPeriodic=false)

	OdGeNurbCurve2d (int degree, const OdGeKnotVector &knots, const OdGePoint2dArray &controlPoints, const OdGeDoubleArray &weights, bool isPeriodic=false)

	OdGeNurbCurve2d (int degree, const OdGePolyline2d &fitPolyline, bool isPeriodic=false)

	OdGeNurbCurve2d (const OdGePoint2dArray &fitPoints, const OdGeVector2d &startTangent, const OdGeVector2d &endTangent, bool startTangentDefined=true, bool endTangentDefined=true, const OdGeTol &fitTolerance=OdGeContext::gTol)

	OdGeNurbCurve2d (const OdGePoint2dArray &fitPoints, const OdGeTol &fitTolerance=OdGeContext::gTol)

	OdGeNurbCurve2d (const OdGePoint2dArray &fitPoints, const OdGeVector2dArray &fitTangents, const OdGeTol &fitTolerance=OdGeContext::gTol, bool isPeriodic=false)

	OdGeNurbCurve2d (const OdGeEllipArc2d &ellipse)

	OdGeNurbCurve2d (const OdGeLineSeg2d &linSeg)

	OdGeNurbCurve2d (const OdGePoint2dArray &fitPoints, const OdGeVector2d &startTangent, const OdGeVector2d &endTangent, bool startTangentDefined, bool endTangentDefined, OdGeKnotParameterization knotParam, const OdGeTol &fitTol=OdGeContext::gTol)

int	numFitPoints () const

bool	getFitPointAt (int index, OdGePoint2d &point) const

bool	getFitTolerance (OdGeTol &fitTolerance) const

bool	getFitTangents (OdGeVector2d &startTangent, OdGeVector2d &endTangent) const

bool	getFitData (OdGePoint2dArray &fitPoints, OdGeTol &fitTolerance, bool &tangentsExist, OdGeVector2d &startTangent, OdGeVector2d &endTangent) const

bool	getFitData (OdGePoint2dArray &fitPoints, OdGeTol &fitTolerance, bool &tangentsExist, OdGeVector2d &startTangent, OdGeVector2d &endTangent, OdGeKnotParameterization &knotParam) const

bool	getFitKnotParameterization (OdGeKnotParameterization &knotParam) const

void	getDefinitionData (int &degree, bool &rational, bool &periodic, OdGeKnotVector &knots, OdGePoint2dArray &controlPoints, OdGeDoubleArray &weights) const

int	numWeights () const

double	weightAt (int weightIndex) const

bool	evalMode () const

bool	getParamsOfC1Discontinuity (OdGeDoubleArray &params, const OdGeTol &tol=OdGeContext::gTol) const

bool	getParamsOfG1Discontinuity (OdGeDoubleArray &params, const OdGeTol &tol=OdGeContext::gTol) const

bool	setFitPointAt (int index, const OdGePoint2d &point)

bool	addFitPointAt (int index, const OdGePoint2d &point)

bool	deleteFitPointAt (int index)

bool	setFitTolerance (const OdGeTol &fitTol=OdGeContext::gTol)

bool	setFitTangents (const OdGeVector2d &startTangent, const OdGeVector2d &endTangent)

bool	setFitKnotParameterization (OdGeKnotParameterization knotParam)

OdGeNurbCurve2d &	setFitData (const OdGePoint2dArray &fitPoints, const OdGeVector2d &startTangent, const OdGeVector2d &endTangent, const OdGeTol &fitTol=OdGeContext::gTol)

OdGeNurbCurve2d &	setFitData (const OdGeKnotVector &fitKnots, const OdGePoint2dArray &fitPoints, const OdGeVector2d &startTangent, const OdGeVector2d &endTangent, const OdGeTol &fitTol=OdGeContext::gTol, bool isPeriodic=false)

OdGeNurbCurve2d &	setFitData (int degree, const OdGePoint2dArray &fitPoints, const OdGeTol &fitTol=OdGeContext::gTol)

OdGeNurbCurve2d &	setFitData (const OdGePoint2dArray &fitPoints, const OdGeVector2d &startTangent, const OdGeVector2d &endTangent, OdGeKnotParameterization knotParam, const OdGeTol &fitTol=OdGeContext::gTol)

bool	purgeFitData ()

OdGeNurbCurve2d &	addKnot (double newKnot)

OdGeNurbCurve2d &	insertKnot (double newKnot)

OdGeSplineEnt2d &	setWeightAt (int controlPointIndex, double weight)

OdGeNurbCurve2d &	setEvalMode (bool evalMode=false)

OdGeNurbCurve2d &	joinWith (const OdGeNurbCurve2d &curve)

OdGeNurbCurve2d &	hardTrimByParams (double newStartParam, double newEndParam)

OdGeNurbCurve2d &	makeRational (double weight=1.0)

OdGeNurbCurve2d &	makeClosed ()

OdGeNurbCurve2d &	makePeriodic ()

OdGeNurbCurve2d &	makeNonPeriodic ()

OdGeNurbCurve2d &	makeOpen ()

OdGeNurbCurve2d &	elevateDegree (int plusDegree)

OdGeNurbCurve2d &	operator= (const OdGeNurbCurve2d &spline)

bool	addControlPointAt (double newKnot, const OdGePoint2d &point, double weight=1.0)

bool	deleteControlPointAt (int index)

bool	intersectWith (const OdGeLine2d &line2d, OdGePoint2dArray &pnts2d, const OdGeTol &tol=OdGeContext::gTol, OdGeDoubleArray *params=NULL) const

void	set (int degree, const OdGeKnotVector &knots, const OdGePoint2dArray &controlPoints, const OdGeDoubleArray &weights, bool isPeriodic=false)

Public Member Functions inherited from OdGeSplineEnt2d
bool	isRational () const

int	degree () const

int	order () const

int	numKnots () const

const OdGeKnotVector &	knots () const

int	numControlPoints () const

int	continuityAtKnot (int knotIndex, const OdGeTol &tol=OdGeContext::gTol) const

double	startParam () const

double	endParam () const

OdGePoint2d	startPoint () const

OdGePoint2d	endPoint () const

bool	hasFitData () const

double	knotAt (int knotIndex) const

OdGeSplineEnt2d &	setKnotAt (int knotIndex, double val)

OdGePoint2d	controlPointAt (int controlPointIndex) const

OdGeSplineEnt2d &	setControlPointAt (int controlPointIndex, const OdGePoint2d &point)

OdGeSplineEnt2d &	operator= (const OdGeSplineEnt2d &spline)

Public Member Functions inherited from OdGeCurve2d
void	getInterval (OdGeInterval &interval) const

void	getInterval (OdGeInterval &interval, OdGePoint2d &start, OdGePoint2d &end) const

OdGeCurve2d &	reverseParam ()

OdGeCurve2d &	setInterval ()

bool	setInterval (const OdGeInterval &interval)

double	distanceTo (const OdGePoint2d &point, const OdGeTol &tol=OdGeContext::gTol) const

double	distanceTo (const OdGeCurve2d &otherCur, const OdGeTol &tol=OdGeContext::gTol) const

OdGePoint2d	closestPointTo (const OdGePoint2d &point, const OdGeTol &tol=OdGeContext::gTol) const

OdGePoint2d	closestPointTo (const OdGeCurve2d &curve2d, OdGePoint2d &pntOnOtherCrv, const OdGeTol &tol=OdGeContext::gTol) const

void	getClosestPointTo (const OdGePoint2d &point, OdGePointOnCurve2d &pntOnCrv, const OdGeTol &tol=OdGeContext::gTol) const

void	getClosestPointTo (const OdGeCurve2d &curve2d, OdGePointOnCurve2d &pntOnThisCrv, OdGePointOnCurve2d &pntOnOtherCrv, const OdGeTol &tol=OdGeContext::gTol) const

bool	getNormalPoint (const OdGePoint2d &point, OdGePointOnCurve2d &pntOnCrv, const OdGeTol &tol=OdGeContext::gTol) const

	TD_USING (OdGeEntity2d::isOn)

bool	isOn (const OdGePoint2d &point, double &param, const OdGeTol &tol=OdGeContext::gTol) const

bool	isOn (double param, const OdGeTol &tol=OdGeContext::gTol) const

double	paramOf (const OdGePoint2d &point, const OdGeTol &tol=OdGeContext::gTol) const

void	getTrimmedOffset (double distance, OdGeCurve2dPtrArray &offsetCurveList, OdGe::OffsetCrvExtType extensionType=OdGe::kFillet, const OdGeTol &tol=OdGeContext::gTol) const

bool	isClosed (const OdGeTol &tol=OdGeContext::gTol) const

bool	isPeriodic (double &period) const

bool	isLinear (OdGeLine2d &line, const OdGeTol &tol=OdGeContext::gTol) const

double	length (double fromParam, double toParam, double tol=OdGeContext::gTol.equalPoint()) const

double	length (double tol=OdGeContext::gTol.equalPoint()) const

double	paramAtLength (double datumParam, double length, bool posParamDir=true, double tol=OdGeContext::gTol.equalPoint()) const

bool	area (double startParam, double endParam, double &value, const OdGeTol &tol=OdGeContext::gTol) const

bool	isDegenerate (OdGe::EntityId &degenerateType, const OdGeTol &tol=OdGeContext::gTol) const

bool	isDegenerate (OdGeEntity2d *&pConvertedEntity, const OdGeTol &tol=OdGeContext::gTol) const

void	getSplitCurves (double param, OdGeCurve2d &piece1, OdGeCurve2d &piece2) const

bool	explode (OdGeCurve2dPtrArray &explodedCurves, OdGeIntArray &newExplodedCurve, const OdGeInterval *interval=NULL) const

void	getLocalClosestPoints (const OdGePoint2d &point, OdGePointOnCurve2d &approxPnt, const OdGeInterval *nbhd=NULL, const OdGeTol &tol=OdGeContext::gTol) const

void	getLocalClosestPoints (const OdGeCurve2d &otherCurve, OdGePointOnCurve2d &approxPntOnThisCrv, OdGePointOnCurve2d &approxPntOnOtherCrv, const OdGeInterval nbhd1=NULL, const OdGeInterval nbhd2=NULL, const OdGeTol &tol=OdGeContext::gTol) const

OdGeBoundBlock2d	boundBlock () const

OdGeBoundBlock2d	boundBlock (const OdGeInterval &range) const

OdGeBoundBlock2d	orthoBoundBlock () const

OdGeBoundBlock2d	orthoBoundBlock (const OdGeInterval &range) const

bool	hasStartPoint (OdGePoint2d &startPoint) const

bool	hasEndPoint (OdGePoint2d &endPoint) const

OdGePoint2d	evalPoint (double param) const

OdGePoint2d	evalPoint (double param, int numDeriv, OdGeVector2dArray &derivatives) const

void	getSamplePoints (double fromParam, double toParam, double approxEps, OdGePoint2dArray &pointArray, OdGeDoubleArray &paramArray) const

void	getSamplePoints (int numSample, OdGePoint2dArray &pointArray) const

OdGeCurve2d &	operator= (const OdGeCurve2d &curve)

void	getSamplePoints (double fromParam, double toParam, double approxEps, OdGePoint2dArray &pointArray, OdGeDoubleArray *pParamArray=NULL) const

void	appendSamplePoints (double fromParam, double toParam, double approxEps, OdGePoint2dArray &pointArray, OdGeDoubleArray *pParamArray=NULL) const

void	appendSamplePoints (int numSample, OdGePoint2dArray &pointArray) const

Public Member Functions inherited from OdGeEntity2d
	ODRX_HEAP_OPERATORS ()

bool	isKindOf (OdGe::EntityId entType) const

OdGe::EntityId	type () const

OdGeEntity2d *	copy () const

OdGeEntity2d &	operator= (const OdGeEntity2d &entity)

bool	operator== (const OdGeEntity2d &entity) const

bool	operator!= (const OdGeEntity2d &entity) const

bool	isEqualTo (const OdGeEntity2d &other, const OdGeTol &tol=OdGeContext::gTol) const

OdGeEntity2d &	transformBy (const OdGeMatrix2d &xfm)

OdGeEntity2d &	translateBy (const OdGeVector2d &translateVec)

OdGeEntity2d &	rotateBy (double angle, const OdGePoint2d &basePoint=OdGePoint2d::kOrigin)

OdGeEntity2d &	mirror (const OdGeLine2d &line)

OdGeEntity2d &	scaleBy (double scaleFactor, const OdGePoint2d &basePoint=OdGePoint2d::kOrigin)

bool	isOn (const OdGePoint2d &point, const OdGeTol &tol=OdGeContext::gTol) const

	~OdGeEntity2d ()

Protected Member Functions
void	set (int degree, const OdGeKnotVector &knots, const OdGePoint2dArray &cntrlPnts, const OdGeDoubleArray &weights, bool isPeriodic, const OdGePoint2dArray &fitPoints, const OdGeVector2d &startTangent, const OdGeVector2d &endTangent)

Protected Member Functions inherited from OdGeSplineEnt2d
	OdGeSplineEnt2d ()

	OdGeSplineEnt2d (const OdGeSplineEnt2d &spline)

Protected Member Functions inherited from OdGeCurve2d
	OdGeCurve2d ()

	OdGeCurve2d (const OdGeCurve2d &source)

Protected Member Functions inherited from OdGeEntity2d
	OdGeEntity2d ()

	OdGeEntity2d (const OdGeEntity2d &)

void	connectTo (OdGeEntity2dImpl *)

Friends
class	OdDbGeEdgesDwgIO

class	OdDbGeEdgesDxfIO

Detailed Description

This class represents non-uniform rational B-splines (NURBS) in 2D space.

Corresponding C++ library: TD_Ge

See also: <link ge_OdGeNurbCurve3d.html, Working with NURBS curves>

Definition at line 49 of file GeNurbCurve2d.h.

Constructor & Destructor Documentation

◆ OdGeNurbCurve2d() [1/11]

OdGeNurbCurve2d::OdGeNurbCurve2d ( )

Parameters

degree	[in] Degree of spline.
knots	[in] Knot vector.
controlPoints	[in] Array of 2D control points.
weights	[in] Array of weights
isPeriodic	[in] True if and only if the spline is to be periodic.
source	[in] Object to be cloned.

Remarks: If weights is not specified, a non-rational spline is constructed. If weights is specified, then a rational spline is constructed, and controlPoints.length() must equal weights.length() If isPeriodic is false, then knots.length() must equal controlPoints.length() + degree + 1 If isPeriodic is true, then knots.length() must equal controlPoints.length(), the first and last controlPoints must be equal and the first and last weights (if provided) must be equal.

◆ OdGeNurbCurve2d() [2/11]

OdGeNurbCurve2d::OdGeNurbCurve2d ( const OdGeNurbCurve2d & source )

◆ OdGeNurbCurve2d() [3/11]

OdGeNurbCurve2d::OdGeNurbCurve2d	(	int	degree,
		const OdGeKnotVector &	knots,
		const OdGePoint2dArray &	controlPoints,
		bool	isPeriodic = `false`
	)

◆ OdGeNurbCurve2d() [4/11]

OdGeNurbCurve2d::OdGeNurbCurve2d	(	int	degree,
		const OdGeKnotVector &	knots,
		const OdGePoint2dArray &	controlPoints,
		const OdGeDoubleArray &	weights,
		bool	isPeriodic = `false`
	)

◆ OdGeNurbCurve2d() [5/11]

OdGeNurbCurve2d::OdGeNurbCurve2d	(	int	degree,
		const OdGePolyline2d &	fitPolyline,
		bool	isPeriodic = `false`
	)

◆ OdGeNurbCurve2d() [6/11]

OdGeNurbCurve2d::OdGeNurbCurve2d	(	const OdGePoint2dArray &	fitPoints,
		const OdGeVector2d &	startTangent,
		const OdGeVector2d &	endTangent,
		bool	startTangentDefined = `true`,
		bool	endTangentDefined = `true`,
		const OdGeTol &	fitTolerance = `OdGeContext::gTol`
	)

◆ OdGeNurbCurve2d() [7/11]

OdGeNurbCurve2d::OdGeNurbCurve2d	(	const OdGePoint2dArray &	fitPoints,
		const OdGeTol &	fitTolerance = `OdGeContext::gTol`
	)

◆ OdGeNurbCurve2d() [8/11]

OdGeNurbCurve2d::OdGeNurbCurve2d	(	const OdGePoint2dArray &	fitPoints,
		const OdGeVector2dArray &	fitTangents,
		const OdGeTol &	fitTolerance = `OdGeContext::gTol`,
		bool	isPeriodic = `false`
	)

◆ OdGeNurbCurve2d() [9/11]

OdGeNurbCurve2d::OdGeNurbCurve2d ( const OdGeEllipArc2d & ellipse )

◆ OdGeNurbCurve2d() [10/11]

OdGeNurbCurve2d::OdGeNurbCurve2d ( const OdGeLineSeg2d & linSeg )

◆ OdGeNurbCurve2d() [11/11]

OdGeNurbCurve2d::OdGeNurbCurve2d	(	const OdGePoint2dArray &	fitPoints,
		const OdGeVector2d &	startTangent,
		const OdGeVector2d &	endTangent,
		bool	startTangentDefined,
		bool	endTangentDefined,
		OdGeKnotParameterization	knotParam,
		const OdGeTol &	fitTol = `OdGeContext::gTol`
	)

Member Function Documentation

◆ addControlPointAt()

bool OdGeNurbCurve2d::addControlPointAt	(	double	newKnot,
		const OdGePoint2d &	point,
		double	weight = `1.0`
	)

Adds a control point at the specified knot.

Parameters

newKnot	[in] The knot parameter to add the control point at.
point	[in] Coordinates of the control point to be added.
weight	[in] The weight to be assigned to the control point.

Remarks: When called for a non-rational spline, weight is ignored.; Currently not implemented.

◆ addFitPointAt()

bool OdGeNurbCurve2d::addFitPointAt	(	int	index,
		const OdGePoint2d &	point
	)

Returns true if and only if this spline was created with fit data, and inserts the fit point at the specified index.

Parameters

fitPointIndex	[in] Fit point index.
point	[in] Fit point.

◆ addKnot()

OdGeNurbCurve2d& OdGeNurbCurve2d::addKnot ( double newKnot )

Adds new knot to the spline knot array and returns reference to this spline object.

Parameters

newKnot [in] New knot.

◆ deleteControlPointAt()

bool OdGeNurbCurve2d::deleteControlPointAt ( int index )

Deletes a control point at the specified index.

Parameters

index [in] The index of the control point to be deleted.

Remarks: Currently not implemented.

◆ deleteFitPointAt()

bool OdGeNurbCurve2d::deleteFitPointAt ( int index )

Removes a fit point with the specified index. The index must be greater than or equal to 0 and less than or equal to the number of fit points.

Parameters

index [in] The index of fit point that is to be removed.

Returns: Returns true if the fit point is successfully deleted and false otherwise.

◆ elevateDegree()

OdGeNurbCurve2d& OdGeNurbCurve2d::elevateDegree ( int plusDegree )

Increases spline degree by the specified value and returns a reference to this spline object.

Parameters

plusDegree [in] Degree increment value.

◆ evalMode()

bool OdGeNurbCurve2d::evalMode ( ) const

Returns the current evaluation mode.

Remarks: Currently not implemented.

◆ getDefinitionData()

void OdGeNurbCurve2d::getDefinitionData	(	int &	degree,
		bool &	rational,
		bool &	periodic,
		OdGeKnotVector &	knots,
		OdGePoint2dArray &	controlPoints,
		OdGeDoubleArray &	weights
	)		const

Returns all the data that define the spline.

Parameters

degree	[out] Receives the degree of spline.
knots	[out] Receives the knot vector.
controlPoints	[out] Receives an array of 2D control points.
weights	[out] Receives an array of weights.
rational	[out] Receives true if and only if the spline is rational.
periodic	[out] Receives true true if and only if the spline is periodic.

Remarks: The weights array will be empty if the spline is not rational.

◆ getFitData() [1/2]

bool OdGeNurbCurve2d::getFitData	(	OdGePoint2dArray &	fitPoints,
		OdGeTol &	fitTolerance,
		bool &	tangentsExist,
		OdGeVector2d &	startTangent,
		OdGeVector2d &	endTangent
	)		const

Returns true if and only if this spline was constructed with fit data, and returns all the fit data used to construct this spline.

Parameters

fitPoints	[out] Receives the interpolation points.
fitTolerance	[out] Receives the geometric tolerance.
tangentsExist	[out] Receives true if and only if tangents were used in constructing this spline.
startTangent	[out] Receives the starting tangent
endTangent	[out] Receives the ending tangent.

Remarks: Currently not implemented.

◆ getFitData() [2/2]

bool OdGeNurbCurve2d::getFitData	(	OdGePoint2dArray &	fitPoints,
		OdGeTol &	fitTolerance,
		bool &	tangentsExist,
		OdGeVector2d &	startTangent,
		OdGeVector2d &	endTangent,
		OdGeKnotParameterization &	knotParam
	)		const

Returns true if and only if this spline was constructed with fit data, and returns all the fit data used to construct this spline.

Parameters

fitPoints	[out] Receives the interpolation points.
fitTolerance	[out] Receives the geometric tolerance.
tangentsExist	[out] Receives true if and only if tangents were used in constructing this spline.
startTangent	[out] Receives the starting tangent
endTangent	[out] Receives the ending tangent.
knotParam	[out] Receives the knot parameterization.

Remarks: startTangent and endTangent are meaningful if and only if tangentsExist == true.; Currently not implemented.

◆ getFitKnotParameterization()

bool OdGeNurbCurve2d::getFitKnotParameterization ( OdGeKnotParameterization & knotParam ) const

Gets the knot parametrization of the spline created with fit points and returns true if successful.

Parameters

knotParam [out] Receives the knot parametrization.

Remarks: Currently not implemented.

◆ getFitPointAt()

bool OdGeNurbCurve2d::getFitPointAt	(	int	index,
		OdGePoint2d &	point
	)		const

Returns true if and only if 0 <= index < numFitPoints(), and returns the fit point at the specified index.

Parameters

fitPointIndex	[in] Fit point index.
point	[out] Receives the fit point.

◆ getFitTangents()

bool OdGeNurbCurve2d::getFitTangents	(	OdGeVector2d &	startTangent,
		OdGeVector2d &	endTangent
	)		const

Descripton: Returns true if and only if this spline was constructed with fit data, and returns the starting and ending tangents.

Parameters

startTangent	[out] Receives the starting tangent
endTangent	[out] Receives the ending tangent.

◆ getFitTolerance()

bool OdGeNurbCurve2d::getFitTolerance ( OdGeTol & fitTolerance ) const

Returns true if and only if this spline was constructed with fit points, and gets the fit tolerance that is used to construct this spline.

Parameters

fitTolerance [out] Recieves the geometric tolerance.

◆ getParamsOfC1Discontinuity()

bool OdGeNurbCurve2d::getParamsOfC1Discontinuity	(	OdGeDoubleArray &	params,
		const OdGeTol &	tol = `OdGeContext::gTol`
	)		const

Remarks: Currently not implemented.

◆ getParamsOfG1Discontinuity()

bool OdGeNurbCurve2d::getParamsOfG1Discontinuity	(	OdGeDoubleArray &	params,
		const OdGeTol &	tol = `OdGeContext::gTol`
	)		const

Remarks: Currently not implemented.

◆ hardTrimByParams()

OdGeNurbCurve2d& OdGeNurbCurve2d::hardTrimByParams	(	double	newStartParam,
		double	newEndParam
	)

Trims the spline by the new start and end parameters, and returns a reference to the recalculated spline.

Parameters

newStartParam	[in] New start parameter.
newEndParam	[in] New end parameter.

◆ insertKnot()

OdGeNurbCurve2d& OdGeNurbCurve2d::insertKnot ( double newKnot )

Inserts new knot to the spline knot array and returns reference to this spline object. If there is already such knot, then the multiplicity of the knot is increased by 1.

Parameters

newKnot [in] New knot.

◆ intersectWith()

bool OdGeNurbCurve2d::intersectWith	(	const OdGeLine2d &	line2d,
		OdGePoint2dArray &	pnts2d,
		const OdGeTol &	tol = `OdGeContext::gTol`,
		OdGeDoubleArray *	params = `NULL`
	)		const

Gets the intersection points well as the parameters of this spline said points.

Returns: Returns true if and only if this spline intersects with the specified linear entity.

Parameters

line	[in] Any 2D linear entity.
pnts2D	[out] Receives an array of 2D points.
tol	[in] Geometric tolerance.
params	[out] Receives an array of parameters.

◆ joinWith()

OdGeNurbCurve2d& OdGeNurbCurve2d::joinWith ( const OdGeNurbCurve2d & curve )

Joins the specified spline with this spline and returns a reference to the recomputed spline. Both splines must be open and the start point of the input spline must be equal to the endpoint of the initial spline.

Parameters

curve [in] Spline to be joined with this spline.

◆ makeClosed()

OdGeNurbCurve2d& OdGeNurbCurve2d::makeClosed ( )

Makes the opened spline closed, and returns a reference to this spline. Closed spline is made by creating a smooth spline between the first and the end points and joining it with the initial spline.

Remarks: If this spline is already closed, then the method does nothing.

◆ makeNonPeriodic()

OdGeNurbCurve2d& OdGeNurbCurve2d::makeNonPeriodic ( )

Makes periodic spline non-periodic.

Remarks: Currently not implemented.

◆ makeOpen()

OdGeNurbCurve2d& OdGeNurbCurve2d::makeOpen ( )

Makes closed spline open.

Remarks: Currently not implemented.

◆ makePeriodic()

OdGeNurbCurve2d& OdGeNurbCurve2d::makePeriodic ( )

Makes non-periodic spline periodic.

Remarks: Currently not implemented.

◆ makeRational()

OdGeNurbCurve2d& OdGeNurbCurve2d::makeRational ( double weight = 1.0 )

Makes this spline rational.

Parameters

weight [in] The weight to be assigned to each control point.

Remarks: When called for a non-rational spline, this spline is made rational, and the specified weight is assigned to each control point.

When called for a rational spline, the weight at each control point is multiplied by the specified weight.

◆ numFitPoints()

int OdGeNurbCurve2d::numFitPoints ( ) const

◆ numWeights()

int OdGeNurbCurve2d::numWeights ( ) const

Returns the number of weights in the spline.

Remarks: Feturns numControlPoints() if this spline is rational, 0 if it is not.

◆ operator=()

OdGeNurbCurve2d& OdGeNurbCurve2d::operator= ( const OdGeNurbCurve2d & spline )

◆ purgeFitData()

bool OdGeNurbCurve2d::purgeFitData ( )

Deletes all the fit data used to construct this spline. Returns true if and only if the spline was constructed with fit data.

Remarks: The definition of the spline is unchanged.

◆ set() [1/2]

void OdGeNurbCurve2d::set	(	int	degree,
		const OdGeKnotVector &	knots,
		const OdGePoint2dArray &	cntrlPnts,
		const OdGeDoubleArray &	weights,
		bool	isPeriodic,
		const OdGePoint2dArray &	fitPoints,
		const OdGeVector2d &	startTangent,
		const OdGeVector2d &	endTangent
	)

protected

◆ set() [2/2]

void OdGeNurbCurve2d::set	(	int	degree,
		const OdGeKnotVector &	knots,
		const OdGePoint2dArray &	controlPoints,
		const OdGeDoubleArray &	weights,
		bool	isPeriodic = `false`
	)

Sets the parameters for this spline according to the arguments, and returns a reference to this spline.

Parameters

degree	[in] Degree of spline.
knots	[in] Knot vector.
controlPoints	[in] Array of 2D control points.
weights	[in] Array of weights
isPeriodic	[in] True if and only if the spline is to be periodic (closed).

Remarks: If weights is not specified, a non-rational spline is constructed. If weights is specified, then a rational spline is constructed, and controlPoints.length() must equal weights.length() If isPeriodic is false, then knots.length() must equal controlPoints.length() + degree + 1 If isPeriodic is true, then knots.length() must equal controlPoints.length(), the first and last controlPoints must be equal, and the first and last weights (if provided) must be equal.

◆ setEvalMode()

OdGeNurbCurve2d& OdGeNurbCurve2d::setEvalMode ( bool evalMode = false )

Sets the evaluation mode.

Remarks: Currently not implemented.

◆ setFitData() [1/4]

OdGeNurbCurve2d& OdGeNurbCurve2d::setFitData	(	const OdGeKnotVector &	fitKnots,
		const OdGePoint2dArray &	fitPoints,
		const OdGeVector2d &	startTangent,
		const OdGeVector2d &	endTangent,
		const OdGeTol &	fitTol = `OdGeContext::gTol`,
		bool	isPeriodic = `false`
	)

Sets the fit data for this spline.

Parameters

fitPoints	[in] Interpolation points.
fitTol	[in] Geometric tolerance.
startTangent	[in] Starting tangent.
endTangent	[in] Ending tangent.

◆ setFitData() [2/4]

OdGeNurbCurve2d& OdGeNurbCurve2d::setFitData	(	const OdGePoint2dArray &	fitPoints,
		const OdGeVector2d &	startTangent,
		const OdGeVector2d &	endTangent,
		const OdGeTol &	fitTol = `OdGeContext::gTol`
	)

Sets the fit data for this spline.

Parameters

fitPoints	[in] Interpolation points.
fitTol	[in] Geometric tolerance.
startTangent	[in] Starting tangent.
endTangent	[in] Ending tangent.

◆ setFitData() [3/4]

OdGeNurbCurve2d& OdGeNurbCurve2d::setFitData	(	const OdGePoint2dArray &	fitPoints,
		const OdGeVector2d &	startTangent,
		const OdGeVector2d &	endTangent,
		OdGeKnotParameterization	knotParam,
		const OdGeTol &	fitTol = `OdGeContext::gTol`
	)

Sets the fit data for this spline.

Parameters

fitPoints	[in] Interpolation points.
fitTol	[in] Geometric tolerance.
startTangent	[in] Starting tangent.
endTangent	[in] Ending tangent.

◆ setFitData() [4/4]

OdGeNurbCurve2d& OdGeNurbCurve2d::setFitData	(	int	degree,
		const OdGePoint2dArray &	fitPoints,
		const OdGeTol &	fitTol = `OdGeContext::gTol`
	)

Sets the fit data for this spline.

Parameters

fitPoints	[in] Interpolation points.
fitTol	[in] Geometric tolerance.

◆ setFitKnotParameterization()

bool OdGeNurbCurve2d::setFitKnotParameterization ( OdGeKnotParameterization knotParam )

Sets the specified knot parameterization if the spline is created by fit points and returns true if the knot parameterization is successfully set.

Parameters

knotParam [in] The knot parameterization to be set.

Remarks: Currently not implemented.

◆ setFitPointAt()

bool OdGeNurbCurve2d::setFitPointAt	(	int	index,
		const OdGePoint2d &	point
	)

Sets the fit point at the specified index.

Parameters

fitPointIndex	[in] Fit point index.
point	[in] Fit point.

◆ setFitTangents()

bool OdGeNurbCurve2d::setFitTangents	(	const OdGeVector2d &	startTangent,
		const OdGeVector2d &	endTangent
	)

Sets the fit tangents for this spline.

Parameters

startTangent	[in] Starting tangent.
endTangent	[in] Ending tangent.

Returns: Returns true if and only if this spline was constructed with fit data.

◆ setFitTolerance()

bool OdGeNurbCurve2d::setFitTolerance ( const OdGeTol & fitTol = OdGeContext::gTol )

Sets the fit tolerance that is used for interpolating fit points.

Parameters

fitTol [in] Geometric tolerance.

Returns: Returns true if the tolerance value is successfully set. false is returned if the spline doesn't contain fit data.

◆ setWeightAt()

OdGeSplineEnt2d& OdGeNurbCurve2d::setWeightAt	(	int	controlPointIndex,
		double	weight
	)

Sets the weight at the specified control point.

Parameters

controlPointIndex	[in] Control point index.
weight	[in] The weight to be assigned to that control point.

◆ weightAt()

double OdGeNurbCurve2d::weightAt ( int weightIndex ) const

Returns the weight at the specified index.

Parameters

weightIndex [in] Weight index.

Friends And Related Function Documentation

◆ OdDbGeEdgesDwgIO

friend class OdDbGeEdgesDwgIO

friend

Definition at line 580 of file GeNurbCurve2d.h.

◆ OdDbGeEdgesDxfIO

friend class OdDbGeEdgesDxfIO

friend

Definition at line 581 of file GeNurbCurve2d.h.

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

GeNurbCurve2d.h

Public Member Functions

Protected Member Functions

Friends

Detailed Description

Constructor & Destructor Documentation

◆ OdGeNurbCurve2d() [1/11]

◆ OdGeNurbCurve2d() [2/11]

◆ OdGeNurbCurve2d() [3/11]

◆ OdGeNurbCurve2d() [4/11]

◆ OdGeNurbCurve2d() [5/11]

◆ OdGeNurbCurve2d() [6/11]

◆ OdGeNurbCurve2d() [7/11]

◆ OdGeNurbCurve2d() [8/11]

◆ OdGeNurbCurve2d() [9/11]

◆ OdGeNurbCurve2d() [10/11]

◆ OdGeNurbCurve2d() [11/11]

Member Function Documentation

◆ addControlPointAt()

◆ addFitPointAt()

◆ addKnot()

◆ deleteControlPointAt()

◆ deleteFitPointAt()

◆ elevateDegree()

◆ evalMode()

◆ getDefinitionData()

◆ getFitData() [1/2]

◆ getFitData() [2/2]

◆ getFitKnotParameterization()

◆ getFitPointAt()

◆ getFitTangents()

◆ getFitTolerance()

◆ getParamsOfC1Discontinuity()

◆ getParamsOfG1Discontinuity()

◆ hardTrimByParams()

◆ insertKnot()

◆ intersectWith()

◆ joinWith()

◆ makeClosed()

◆ makeNonPeriodic()

◆ makeOpen()

◆ makePeriodic()

◆ makeRational()

◆ numFitPoints()

◆ numWeights()

◆ operator=()

◆ purgeFitData()

◆ set() [1/2]

◆ set() [2/2]

◆ setEvalMode()

◆ setFitData() [1/4]

◆ setFitData() [2/4]

◆ setFitData() [3/4]

◆ setFitData() [4/4]

◆ setFitKnotParameterization()

◆ setFitPointAt()

◆ setFitTangents()

◆ setFitTolerance()

◆ setWeightAt()

◆ weightAt()

Friends And Related Function Documentation

◆ OdDbGeEdgesDwgIO

◆ OdDbGeEdgesDxfIO