Base class for 2D curves. More...

#include <cadex/ModelData_Curve2d.hxx>

Inheritance diagram for cadex::ModelData_Curve2d:

Public Member Functions
	ModelData_Curve2d ()
	Constructor.

	ModelData_Curve2d (const ModelData_Curve2d &theOther)
	Constructor.

	ModelData_Curve2d (ModelData_Curve2d &&theOther)
	Constructor.

	~ModelData_Curve2d ()
	Destructor.

ModelData_Curve2d &	operator= (const ModelData_Curve2d &theOther)
	Assignment operator.

ModelData_Curve2d &	operator= (ModelData_Curve2d &&theOther)
	Move assignment operator.

ModelData_CurveType	Type () const
	Returns a curve type.

bool	IsNull () const
	Returns true if the object has not been initialized yet.

void	Nullify ()
	Resets the object.

	operator bool () const
	Returns if the object has been initialized.

bool	IsPeriodic () const
	Returns true if the curve is periodic.

double	UMin () const
	Returns a minimum parameter of a definition domain.

double	UMax () const
	Returns a maximum parameter of a definition domain.

void	Domain (double &theUMin, double &theUMax) const
	Returns a definition domain.

ModelData_Point2d	Value (double theParameter) const
	Evaluates a point on the curve.

ModelData_Curve2d	Reversed () const
	Returns a curve with reversed orientation.

void	Transform (const ModelData_Transformation2d &theTransformation)
	Applies transformation matrix to this object.

ModelData_Curve2d	Transformed (const ModelData_Transformation2d &theTransformation) const
	Returns a copy this object after applying transformation.

ModelData_Continuity	Continuity () const
	Returns a continuity type of the curve.

void	D0 (double theParameter, ModelData_Point2d &theValue) const
	Returns the point theValue of parameter theParam.

void	D1 (double theParameter, ModelData_Point2d &theValue, ModelData_Vector2d &theD1) const
	Returns the point theValue of parameter theParam and the first derivative theD1.

void	D2 (double theParameter, ModelData_Point2d &theValue, ModelData_Vector2d &theD1, ModelData_Vector2d &theD2) const
	Returns the point theValue of parameter theParam and second derivatives theD1 and theD2.

bool	DN (double theParameter, size_t theDerivativeOrder, ModelData_Point2d &theValue, ModelData_Vector2d theD[]) const

double	Curvature (double theParameter) const
	Returns the curvature value of parameter theParam.

void	Normal (double theParameter, ModelData_Direction2d &theNormal) const
	Returns the normal direction theNormal of parameter theParam.

Public Attributes
	operator Handle_C const

Detailed Description

Base class for 2D curves.

2D curves are used to represent curves in surface parametric domains (p-curves). They are used by edges owned by faces.

For detailed description refer to 3D counterpart ModelData_Curve.

See also: Curves.

Examples: exploring/brepgeometry/Program.cs, exploring/brepgeometry/main.cxx, exploring/drawings/Program.cs, and exploring/drawings/main.cxx.

Member Function Documentation

◆ D0()

void cadex::ModelData_Curve2d::D0	(	double	theParam,
		ModelData_Point2d &	theValue
	)		const

Returns the point theValue of parameter theParam.

Throws exception only for the ModelData_OffsetCurve if it is not possible to compute the current point. For example when the first derivative on the basis curve and the offset direction are parallel.

◆ D1()

void cadex::ModelData_Curve2d::D1	(	double	theParam,
		ModelData_Point2d &	theValue,
		ModelData_Vector2d &	theD1
	)		const

Returns the point theValue of parameter theParam and the first derivative theD1.

Throws exception if the continuity of the curve is not C1.

◆ D2()

void cadex::ModelData_Curve2d::D2	(	double	theParam,
		ModelData_Point2d &	theValue,
		ModelData_Vector2d &	theD1,
		ModelData_Vector2d &	theD2
	)		const

Returns the point theValue of parameter theParam and second derivatives theD1 and theD2.

Throws exception if the continuity of the curve is not C2.

◆ DN()

bool cadex::ModelData_Curve2d::DN	(	double	theParam,
		size_t	theDerivativeOrder,
		ModelData_Point2d &	theValue,
		ModelData_Vector2d	theD[]
	)		const

Returns true if calculation was passed succsesfully, the returned vectors gives the value of the derivative for the order of derivation theDerivativeOrder. Otherwise returns false. Throws exception if the continuity of the curve is not CN.

Parameters:

theDerivativeOrder must belong to range [0, 3].
theD should have enough size to store theDerivativeOrder derivatives.

◆ Domain()

void cadex::ModelData_Curve2d::Domain	(	double &	theUMin,
		double &	theUMax
	)		const

Returns a definition domain.

See also: UMin(), UMax().

◆ IsNull()

bool cadex::ModelData_Curve2d::IsNull ( ) const

Returns true if the object has not been initialized yet.

See also: Nullify().

◆ Nullify()

void cadex::ModelData_Curve2d::Nullify ( )

Resets the object.

IsNull() will return true after calling this method.

◆ operator bool()

cadex::ModelData_Curve2d::operator bool ( ) const

inline

Returns if the object has been initialized.

Returns the value opposite to IsNull().

◆ Reversed()

ModelData_Curve2d cadex::ModelData_Curve2d::Reversed ( ) const

Returns a curve with reversed orientation.

Creates a deep copy of the curve which does not share any definition with this object.

◆ Transform()

void cadex::ModelData_Curve2d::Transform ( const ModelData_Transformation2d & theTransformation )

Applies transformation matrix to this object.

Results depends on the actual curve type.

See also: Transformed().

◆ Transformed()

ModelData_Curve2d cadex::ModelData_Curve2d::Transformed ( const ModelData_Transformation2d & theTransformation ) const

Returns a copy this object after applying transformation.

The contents of this object is not modified.

See also: Transform().

◆ UMax()

double cadex::ModelData_Curve2d::UMax ( ) const

Returns a maximum parameter of a definition domain.

See also: UMin(), Domain().

Examples: exploring/brepgeometry/Program.cs, and exploring/brepgeometry/main.cxx.

◆ UMin()

double cadex::ModelData_Curve2d::UMin ( ) const

Returns a minimum parameter of a definition domain.

See also: UMax(), Domain().

Examples: exploring/brepgeometry/Program.cs, and exploring/brepgeometry/main.cxx.

◆ Value()

ModelData_Point2d cadex::ModelData_Curve2d::Value ( double theParameter ) const

Evaluates a point on the curve.

theParameter must be within Domain() if the curve is not periodic.

Public Member Functions

Public Attributes