OdIfc4x1::IfcLoop Class Reference

#include <IfcLoopAutoImpl.h>

Inheritance diagram for OdIfc4x1::IfcLoop:

Public Member Functions
virtual OdDAI::Entity *	getInstanceType () const override
virtual bool	isKindOf (OdIfc::OdIfcEntityType entityType) const override
virtual OdIfc::OdIfcEntityType	type () const override
Public Member Functions inherited from OdIfc4x1::IfcRepresentationItem
void	getInvLayerAssignment (OdDAIObjectIds &LayerAssignment) const
void	getInvStyledByItem (OdDAIObjectIds &StyledByItem) const
virtual OdResult	inFields (OdDAI::OdSpfFilerBase *rdFiler) override
virtual OdResult	outFields (OdDAI::OdSpfFilerBase *wrFiler) override
virtual void	unsetAttr (const char *explicitAttrName) override
virtual bool	testAttr (const char *explicitAttrName) 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::OdIfc4x1Instance
void	setInverseCounterParts () override
Public Member Functions inherited from OdIfc::OdIfcInstance
	ODRX_DECLARE_MEMBERS (OdIfcInstance)
	OdIfcInstance ()
	~OdIfcInstance ()
bool	isInstanceOf (OdIfcEntityType entityType) const
virtual bool	putAttr (const char *explicitAttrName, const OdRxValue &val)
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

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)
Protected Attributes inherited from OdIfc::OdIfcInstance
void *	m_resPtr
IfcOpResult	m_resolved

Detailed Description

A loop is a topological entity constructed from a single vertex, or by stringing together connected (oriented) edges, or linear segments beginning and ending at the same vertex. It is typically used to bound a face lying on a surface. A loop has dimensionality of 0 or 1. The domain of a 0-dimensional loop is a single point. The domain of a 1-dimensional loop is a connected, oriented curve, but need not to be manifold. As the loop is a circle, the location of its beginning/ending point is arbitrary. A loop is represented by a single vertex, or by an ordered collection of oriented edges, or by an ordered collection of points. A loop is a graph, so M and the graph genus Gl can be determined by the graph traversal algorithm. Since M = 1, the Euler equation reduces in this case to

( V-E⊂l ) - ( 1-G⊃l ) = 0

where V and E~l~ are the number of unique vertices and oriented edges in the loop and G^l^ is the genus of the loop.

Definition at line 54 of file Ifc4x1/IfcLoopAutoImpl.h.

Member Function Documentation

getInstanceType()

virtual OdDAI::Entity * OdIfc4x1::IfcLoop::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::IfcTopologicalRepresentationItem.

Reimplemented in OdIfc4x1::IfcEdgeLoop, OdIfc4x1::IfcPolyLoop, and OdIfc4x1::IfcVertexLoop.

isKindOf()

virtual bool OdIfc4x1::IfcLoop::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::IfcTopologicalRepresentationItem.

Reimplemented in OdIfc4x1::IfcEdgeLoop, OdIfc4x1::IfcPolyLoop, and OdIfc4x1::IfcVertexLoop.

type()

virtual OdIfc::OdIfcEntityType OdIfc4x1::IfcLoop::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::IfcTopologicalRepresentationItem.

Reimplemented in OdIfc4x1::IfcEdgeLoop, OdIfc4x1::IfcPolyLoop, and OdIfc4x1::IfcVertexLoop.

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

• Ifc4x1/IfcLoopAutoImpl.h