#include <IfcBSplineCurveAutoImpl.h>

Inheritance diagram for OdIfc4x1::IfcBSplineCurve:

Public Member Functions
int	getDegree () const

void	setDegree (int Degree)

void	getControlPointsList (OdDAIObjectIds &ControlPointsList) const

OdDAI::ListOfOdDAIObjectId &	controlPointsList ()

IfcBSplineCurveForm	getCurveForm () const

void	setCurveForm (IfcBSplineCurveForm CurveForm)

OdDAI::Logical	getClosedCurve () const

void	setClosedCurve (OdDAI::Logical ClosedCurve)

OdDAI::Logical	getSelfIntersect () const

void	setSelfIntersect (OdDAI::Logical SelfIntersect)

	IfcBSplineCurve ()

virtual OdResult	inFields (OdDAI::OdSpfFilerBase *rdFiler) override

virtual OdResult	outFields (OdDAI::OdSpfFilerBase *wrFiler) override

virtual OdDAI::Entity *	getInstanceType () const override

virtual OdRxValue	getAttr (const char *attrName) const override

virtual void	unsetAttr (const char *explicitAttrName) override

virtual bool	testAttr (const char *explicitAttrName) const override

virtual bool	putAttr (const char *explicitAttrName, const OdRxValue &val) override

virtual bool	isKindOf (OdIfc::OdIfcEntityType entityType) const override

virtual OdIfc::OdIfcEntityType	type () const override

virtual OdRxValue	getAttr (const OdIfc::OdIfcAttribute attrDef) const override

virtual void	unsetAttr (const OdIfc::OdIfcAttribute explicitAttrDef) override

virtual bool	testAttr (const OdIfc::OdIfcAttribute explicitAttrDef) const override

virtual bool	putAttr (const OdIfc::OdIfcAttribute explicitAttrDef, const OdRxValue &val) override

Public Member Functions inherited from OdIfc4x1::IfcRepresentationItem
void	getInvLayerAssignment (OdDAIObjectIds &LayerAssignment) const

void	getInvStyledByItem (OdDAIObjectIds &StyledByItem) const

Public Member Functions inherited from OdIfc4x1::OdIfc4x1Instance
void	setInverseCounterParts () override

Public Member Functions inherited from OdIfc::OdIfcInstance
	ODRX_DECLARE_MEMBERS (OdIfcInstance)

	OdIfcInstance ()

	~OdIfcInstance ()

bool	isInstanceOf (OdIfcEntityType entityType) const

IfcOpResult	resolved ()

void	resolve (IfcOpResult resolved, void *resPtr)

void	unresolve ()

virtual void	setGsNode (OdGsCache *pGsNode)

virtual OdGsCache *	gsNode () const

virtual OdUInt32	subSetAttributes (OdGiDrawableTraits *traits) const

virtual bool	subWorldDraw (OdGiWorldDraw *wd) const

virtual OdDbStub *	ownerId () const

Protected Attributes
int	m_Degree

OdDAI::ListOfOdDAIObjectId	m_ControlPointsList

OdDAI::Enum	m_CurveForm

OdDAI::Logical	m_ClosedCurve

OdDAI::Logical	m_SelfIntersect

Protected Attributes inherited from OdIfc::OdIfcInstance
void *	m_resPtr

IfcOpResult	m_resolved

Additional Inherited Members
Static Public Member Functions inherited from OdIfc::OdIfcInstance
static const OdGePoint3d *	asPoint3d (const OdIfcInstance *inst)

static const OdGePoint2d *	asPoint2d (const OdIfcInstance *inst)

static const OdGeVector3d *	asVector3d (const OdIfcInstance *inst)

static const OdGeVector2d *	asVector2d (const OdIfcInstance *inst)

static const OdGeMatrix2d *	asMatrix2d (const OdIfcInstance *inst)

static const OdGeMatrix3d *	asMatrix3d (const OdIfcInstance *inst)

static OdIfcCompoundPtr	asCompound (OdSmartPtr< OdIfcInstance > inst)

static const OdCmEntityColor *	asRgbColor (const OdIfcInstance *inst)

Detailed Description

The IfcBSplineCurve is a spline curve parameterized by spline functions.

Details - The image below illustrates a B-spline curve.

A B-spline curve is a piecewise parametric polynomial or rational curve described in terms of control points and basis functions. The B-spline curve is the most stable format to represent all types of polynomial or rational parametric curves. With appropriate attribute values it is capable of representing single span or spline curves of explicit polynomial, rational, Bezier or B-spline type.

Equation 1:

Equation 2:

Variable definitions: k+1 - Number of control points p⊂i - Control points w⊂i - Weights d - Degree

\changes

IFC4 changes: Type of the ClosedCurve attribute changed from "logical" to "IfcLogical" Type of the Degree attribute changed from "integer" to "IfcInteger" Type of the SelfIntersect attribute changed from "logical" to "IfcLogical"

Definition at line 70 of file Ifc4x1/IfcBSplineCurveAutoImpl.h.

Constructor & Destructor Documentation

◆ IfcBSplineCurve()

OdIfc4x1::IfcBSplineCurve::IfcBSplineCurve ( )

Default constructor for the IfcBSplineCurve class.

Member Function Documentation

◆ controlPointsList()

OdDAI::ListOfOdDAIObjectId & OdIfc4x1::IfcBSplineCurve::controlPointsList ( )

Returns the value of ControlPointsList attribute. This attribute represents the list of control points for the curve.

Returns: Returns the value of ControlPointsList attribute.

◆ getAttr() [1/2]

virtual OdRxValue OdIfc4x1::IfcBSplineCurve::getAttr ( const char * attrName ) const

overridevirtual

Returns an attribute value for the specified attribute name.

Parameters

attrName [in] Name of an attribute to query.

Returns: OdRxValue object that represents a generic variant type value.

Reimplemented in OdIfc4x1::IfcBSplineCurveWithKnots, and OdIfc4x1::IfcRationalBSplineCurveWithKnots.

◆ getAttr() [2/2]

virtual OdRxValue OdIfc4x1::IfcBSplineCurve::getAttr ( const OdIfc::OdIfcAttribute attrDef ) const

overridevirtual

Returns an attribute value for the specified attribute definition.

Parameters

attrDef [in] Attribute definition to query.

Returns: OdRxValue object that represents a generic variant type value.

Reimplemented from OdIfc4x1::IfcRepresentationItem.

Reimplemented in OdIfc4x1::IfcBSplineCurveWithKnots, and OdIfc4x1::IfcRationalBSplineCurveWithKnots.

◆ getClosedCurve()

OdDAI::Logical OdIfc4x1::IfcBSplineCurve::getClosedCurve ( ) const

Returns the value of ClosedCurve attribute. This attribute indicates whether the curve is closed.

Returns: Returns the value of ClosedCurve attribute.

◆ getControlPointsList()

void OdIfc4x1::IfcBSplineCurve::getControlPointsList ( OdDAIObjectIds & ControlPointsList ) const

Gets the value of ControlPointsList attribute. This attribute represents the list of control points for the curve.

Parameters

ControlPointsList [out] Receives the control points list.

◆ getCurveForm()

IfcBSplineCurveForm OdIfc4x1::IfcBSplineCurve::getCurveForm ( ) const

Returns the value of CurveForm attribute. This attribute represents particular types of curve.

Returns: Returns the value of CurveForm attribute.

◆ getDegree()

int OdIfc4x1::IfcBSplineCurve::getDegree ( ) const

Returns the value of Degree attribute. This attribute represents the algebraic degree of the basis functions.

Returns: Returns the value of Degree attribute.

◆ getInstanceType()

virtual OdDAI::Entity * OdIfc4x1::IfcBSplineCurve::getInstanceType ( ) const

overridevirtual

Returns a type of a class instance.

Returns: Pointer to the <exref target=https://docs.opendesign.com/tkernel_api_cpp/OdDAI__Entity.html>>OdDAI::Entity</exref> type that determines an entity definition within a schema.

Reimplemented from OdIfc4x1::IfcBoundedCurve.

Reimplemented in OdIfc4x1::IfcBSplineCurveWithKnots, and OdIfc4x1::IfcRationalBSplineCurveWithKnots.

◆ getSelfIntersect()

OdDAI::Logical OdIfc4x1::IfcBSplineCurve::getSelfIntersect ( ) const

Returns the value of SelfIntersect attribute. This attribute indicates whether the curve self-intersects.

Returns: Returns the value of SelfIntersect attribute.

◆ inFields()

virtual OdResult OdIfc4x1::IfcBSplineCurve::inFields ( OdDAI::OdSpfFilerBase * rdFiler )

overridevirtual

Reads object's data from the specified filer.

Parameters

rdFiler [in] Pointer to a filer from which to read the data.

Returns: A value of OdResult type that contains the result of the method execution.

Reimplemented from OdIfc4x1::IfcRepresentationItem.

Reimplemented in OdIfc4x1::IfcBSplineCurveWithKnots, and OdIfc4x1::IfcRationalBSplineCurveWithKnots.

◆ isKindOf()

virtual bool OdIfc4x1::IfcBSplineCurve::isKindOf ( OdIfc::OdIfcEntityType entityType ) const

overridevirtual

Checks whether the specified instance is the object derived from or belongs to this class.

Parameters

entityType [in] Entity to check.

Returns: true if the specified instance is the object derived from or belongs to this class, false otherwise.

Reimplemented from OdIfc4x1::IfcBoundedCurve.

Reimplemented in OdIfc4x1::IfcBSplineCurveWithKnots, and OdIfc4x1::IfcRationalBSplineCurveWithKnots.

◆ outFields()

virtual OdResult OdIfc4x1::IfcBSplineCurve::outFields ( OdDAI::OdSpfFilerBase * wrFiler )

overridevirtual

Writes object's data the the specified filer.

Parameters

wrFiler [in] Pointer to a filer to which to write the data.

Returns: A value of OdResult type that contains the result of the method execution.

Reimplemented from OdIfc4x1::IfcRepresentationItem.

Reimplemented in OdIfc4x1::IfcBSplineCurveWithKnots, and OdIfc4x1::IfcRationalBSplineCurveWithKnots.

◆ putAttr() [1/2]

virtual bool OdIfc4x1::IfcBSplineCurve::putAttr	(	const char *	explicitAttrName,
		const OdRxValue &	val )

overridevirtual

Sets the specified attribute with a given value.

Parameters

explicitAttrName	[in] Explicit name of the attribute to set.
val	[in] Value to set.

Returns: true if the value is successfully set for the specified attribute, false otherwise.

Reimplemented from OdIfc::OdIfcInstance.

Reimplemented in OdIfc4x1::IfcBSplineCurveWithKnots, and OdIfc4x1::IfcRationalBSplineCurveWithKnots.

◆ putAttr() [2/2]

virtual bool OdIfc4x1::IfcBSplineCurve::putAttr	(	const OdIfc::OdIfcAttribute	explicitAttrDef,
		const OdRxValue &	val )

overridevirtual

Sets the specified attribute with a given value.

Parameters

explicitAttrDef	[in] Explicit attribute definition to set.
val	[in] Value to set.

Returns: true if the value is successfully set for the specified attribute, false otherwise.

Reimplemented from OdIfc4x1::IfcRepresentationItem.

Reimplemented in OdIfc4x1::IfcBSplineCurveWithKnots, and OdIfc4x1::IfcRationalBSplineCurveWithKnots.

◆ setClosedCurve()

void OdIfc4x1::IfcBSplineCurve::setClosedCurve ( OdDAI::Logical ClosedCurve )

Sets the value of ClosedCurve attribute. This attribute indicates whether the curve is closed.

Parameters

ClosedCurve [in] Closed curve to set.

◆ setCurveForm()

void OdIfc4x1::IfcBSplineCurve::setCurveForm ( IfcBSplineCurveForm CurveForm )

Sets the value of CurveForm attribute. This attribute represents particular types of curve.

Parameters

CurveForm [in] Curve form to set.

◆ setDegree()

void OdIfc4x1::IfcBSplineCurve::setDegree ( int Degree )

Sets the value of Degree attribute. This attribute represents the algebraic degree of the basis functions.

Parameters

Degree [in] Degree to set.

◆ setSelfIntersect()

void OdIfc4x1::IfcBSplineCurve::setSelfIntersect ( OdDAI::Logical SelfIntersect )

Sets the value of SelfIntersect attribute. This attribute indicates whether the curve self-intersects.

Parameters

SelfIntersect [in] SelfIntersect attribute to set.

◆ testAttr() [1/2]

virtual bool OdIfc4x1::IfcBSplineCurve::testAttr ( const char * explicitAttrName ) const

overridevirtual

Checks whether the specified attribute is set.

Parameters

explicitAttrName [in] Explicit name of the attribute to test.

Returns: true if the specified attribute is set, false otherwise.

Reimplemented from OdIfc4x1::IfcRepresentationItem.

Reimplemented in OdIfc4x1::IfcBSplineCurveWithKnots, and OdIfc4x1::IfcRationalBSplineCurveWithKnots.

◆ testAttr() [2/2]

virtual bool OdIfc4x1::IfcBSplineCurve::testAttr ( const OdIfc::OdIfcAttribute explicitAttrDef ) const

overridevirtual

Checks whether the specified attribute is set.

Parameters

explicitAttrDef [in] Attribute definition to test.

Returns: true if the specified attribute is set, false otherwise.

Reimplemented from OdIfc4x1::IfcRepresentationItem.

Reimplemented in OdIfc4x1::IfcBSplineCurveWithKnots, and OdIfc4x1::IfcRationalBSplineCurveWithKnots.

◆ type()

virtual OdIfc::OdIfcEntityType OdIfc4x1::IfcBSplineCurve::type ( ) const

overridevirtual

Returns the type of this entity.

Returns: A value of the <exref target=https://docs.opendesign.com/tkernel_api_cpp/OdIfc__OdIfcEntityType.html>>OdIfc::OdIfcEntityType</exref> type that represents type of this entity.

Reimplemented from OdIfc4x1::IfcBoundedCurve.

Reimplemented in OdIfc4x1::IfcBSplineCurveWithKnots, and OdIfc4x1::IfcRationalBSplineCurveWithKnots.