CFx SDK Documentation 2026 SP0
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OdIfc2x3::IfcColumn Class Reference

#include <IfcColumnAutoImpl.h>

Inheritance diagram for OdIfc2x3::IfcColumn:
OdIfc2x3::IfcBuildingElement OdIfc2x3::IfcElement OdIfc2x3::IfcProduct OdIfc2x3::IfcObject OdIfc2x3::IfcObjectDefinition OdIfc2x3::IfcRoot OdIfc2x3::OdIfc2x3Instance OdIfc::OdIfcInstance

Public Member Functions

virtual OdDAI::Entity * getInstanceType () const override
 
virtual bool comparedToEarlyImpl (const OdDAI::ApplicationInstance *pOther, OdRx::Ordering &ordering) const override
 
virtual bool isKindOf (OdIfc::OdIfcEntityType entityType) const override
 
virtual OdIfc::OdIfcEntityType type () const override
 
- Public Member Functions inherited from OdIfc2x3::IfcElement
const OdAnsiString & getTag () const
 
void setTag (const OdAnsiString &Tag)
 
void getInvHasStructuralMember (OdDAIObjectIds &HasStructuralMember) const
 
void getInvFillsVoids (OdDAIObjectIds &FillsVoids) const
 
void getInvConnectedTo (OdDAIObjectIds &ConnectedTo) const
 
void getInvHasCoverings (OdDAIObjectIds &HasCoverings) const
 
void getInvHasProjections (OdDAIObjectIds &HasProjections) const
 
void getInvReferencedInStructures (OdDAIObjectIds &ReferencedInStructures) const
 
void getInvHasPorts (OdDAIObjectIds &HasPorts) const
 
void getInvHasOpenings (OdDAIObjectIds &HasOpenings) const
 
void getInvIsConnectionRealization (OdDAIObjectIds &IsConnectionRealization) const
 
void getInvProvidesBoundaries (OdDAIObjectIds &ProvidesBoundaries) const
 
void getInvConnectedFrom (OdDAIObjectIds &ConnectedFrom) const
 
void getInvContainedInStructure (OdDAIObjectIds &ContainedInStructure) const
 
 IfcElement ()
 
virtual OdResult inFields (OdDAI::OdSpfFilerBase *rdFiler) override
 
virtual OdResult outFields (OdDAI::OdSpfFilerBase *wrFiler) 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 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 OdIfc2x3::IfcProduct
const OdDAIObjectId & getObjectPlacement () const
 
void setObjectPlacement (const OdDAIObjectId &ObjectPlacement)
 
const OdDAIObjectId & getRepresentation () const
 
void setRepresentation (const OdDAIObjectId &Representation)
 
void getInvReferencedBy (OdDAIObjectIds &ReferencedBy) const
 
virtual void setInverseCounterParts () override
 
- Public Member Functions inherited from OdIfc2x3::IfcObject
const OdAnsiString & getObjectType () const
 
void setObjectType (const OdAnsiString &ObjectType)
 
void getInvIsDefinedBy (OdDAIObjectIds &IsDefinedBy) const
 
 IfcObject ()
 
- Public Member Functions inherited from OdIfc2x3::IfcObjectDefinition
void getInvHasAssignments (OdDAIObjectIds &HasAssignments) const
 
void getInvIsDecomposedBy (OdDAIObjectIds &IsDecomposedBy) const
 
void getInvDecomposes (OdDAIObjectIds &Decomposes) const
 
void getInvHasAssociations (OdDAIObjectIds &HasAssociations) const
 
- Public Member Functions inherited from OdIfc2x3::IfcRoot
OdDAI::CompressedGUID getGlobalId () const
 
void setGlobalId (OdDAI::CompressedGUID GlobalId)
 
const OdDAIObjectId & getOwnerHistory () const
 
void setOwnerHistory (const OdDAIObjectId &OwnerHistory)
 
const OdAnsiString & getName () const
 
void setName (const OdAnsiString &Name)
 
const OdAnsiString & getDescription () const
 
void setDescription (const OdAnsiString &Description)
 
 IfcRoot ()
 
- Public Member Functions inherited from OdIfc2x3::OdIfc2x3Instance
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 OdGsCachegsNode () 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 OdGePoint3dasPoint3d (const OdIfcInstance *inst)
 
static const OdGePoint2dasPoint2d (const OdIfcInstance *inst)
 
static const OdGeVector3dasVector3d (const OdIfcInstance *inst)
 
static const OdGeVector2dasVector2d (const OdIfcInstance *inst)
 
static const OdGeMatrix2dasMatrix2d (const OdIfcInstance *inst)
 
static const OdGeMatrix3dasMatrix3d (const OdIfcInstance *inst)
 
static OdIfcCompoundPtr asCompound (OdSmartPtr< OdIfcInstance > inst)
 
static const OdCmEntityColorasRgbColor (const OdIfcInstance *inst)
 
- Protected Attributes inherited from OdIfc2x3::IfcElement
OdAnsiString m_Tag
 
- Protected Attributes inherited from OdIfc2x3::IfcProduct
OdDAIObjectId m_ObjectPlacement
 
OdDAIObjectId m_Representation
 
- Protected Attributes inherited from OdIfc2x3::IfcObject
OdAnsiString m_ObjectType
 
- Protected Attributes inherited from OdIfc2x3::IfcRoot
OdDAI::CompressedGUID m_GlobalId
 
OdDAIObjectId m_OwnerHistory
 
OdAnsiString m_Name
 
OdAnsiString m_Description
 
- Protected Attributes inherited from OdIfc::OdIfcInstance
voidm_resPtr
 
IfcOpResult m_resolved
 

Detailed Description

An IfcColumn is a vertical structural member which often is aligned with a structural grid intersection. It represents a vertical, or nearly vertical, structural member that transmits, through compression, the weight of the structure above to other structural elements below. It represents such a member from an architectural point of view. It is not required to be load bearing.

  • Details - There are two main representations for column occurrences: IfcColumn with IfcMaterialProfileSetUsage is used for all occurrences of columns, that have a profile defined that is swept along a directrix. The profile might change uniformly by a taper definition along the directrix. The profile parameter and its cardinal point of insertion can be fully described by the IfcMaterialProfileSetUsage. These columns are always represented geometrically by an 'Axis' and a 'SweptSolid' or 'AdvancedSweptSolid' shape representation (or by a 'Clipping' geometry based on the swept solid), if a 3D geometric representation is assigned. IfcColumn is used for all other occurrences of columns, particularly for columns with changing profile sizes along the extrusion, or columns defined by non-linear extrusion, or columns having only 'Brep', or 'SurfaceModel' geometry, if a more parametric representation is not intended.
  • Axis 3D Geometry - The axis representation can be used to represent the fundamental orientation and extents of a column's body. If an IfcMaterialProfileSetUsage is used, the axis representation is used to locate the profile. In addition: For a body representation using an IfcExtrudedAreaSolid, the axis can be an IfcPolyline having two Points, or IfcTrimmedCurve with BasisCurve of type IfcLine. The axis curve lies on the z axis of the object coordinate system. For a body representation using an IfcRevolvedAreaSolid, the axis can be an IfcTrimmedCurve with BasisCurve of type IfcCircle. The axis curve lies on the x/z plane of the object coordinate system, the tangent at the start is along the positive z-axis.

<IMAGE ifccolumnstandardcase_axis-01>

As shown on the image below, the axis representation must be positioned at the IfcMaterialProfileSetUsage.CardinalPoint, and parallel to the IfcExtrudedAreaSolid.ExtrudedDirection. This offset between the axis line and the IfcExtrudedAreaSolid.Position must correlate with the chosen IfcMaterialProfileSetUsage.CardinalPoint.

<IMAGE ifccolumnstandardcase_axis-02>

The image below illustrates a 'Clipping' geometric representation with use of IfcBooleanClippingResult between an IfcExtrudedAreaSolid and an IfcHalfSpaceSolid to create a clipped body.

<IMAGE ifccolumn_advanced-2-layout1>

The image below illustrates a 'SweptSolid' geometric representation. There are no restrictions or conventions on how to use the object placement (black), extrusion placement (red) and profile placement (green).

<IMAGE ifccolumn_standard-layout1>

The image below illustrates use of a special profile type (here IfcIShapeProfileDef) for the definition of the IfcExtrudedAreaSolid.

<IMAGE ifccolumn_advanced-1-layout1>

  • Material Profile Set Usage - The image below illustrates assignment of IfcMaterialProfileSetUsage and IfcMaterialProfileSet to the IfcColumnType and the IfcColumn occurrence. Both the IfcMaterialProfileSet and IfcProfileDef is shared between all occurrences.

<IMAGE ifccolumn-01>

The image below illustrates cardinal point alignment. The use of IfcCardinalPointEnum must be consistent with the placement of the extrusion body provided by IfcExtrudedAreaSolid.Position.

<IMAGE ifccolumn_cardinalpoint>

The image below illustrates assignment of a composite profile by using IfcCompositeProfileDef for geometric representation and several IfcMaterialProfile entities within the IfcMaterialProfileSet.

<IMAGE ifccolumn-02>

  • Material Set - This concept can be applied to the following resources: LoadBearing
  • Object Typing - This concept can be applied to the following resources: IfcColumnType
  • Product Assignment - This concept can be applied to the following resources: IfcStructuralCurveMember - An idealized structural member corresponding to the column. IfcTask - A task for operating on the column.
  • Property Sets for Objects - This concept can be applied to the following resources: Pset_ConcreteElementGeneral Pset_PrecastConcreteElementFabrication Pset_PrecastConcreteElementGeneral Pset_ColumnCommon Pset_ReinforcementBarPitchOfColumn
  • Quantity Sets - This concept can be applied to the following resources: Qto_ColumnBaseQuantities
  • Spatial Containment - The IfcColumn, as any subtype of IfcBuildingElement, can participate alternatively in one of the two different containment relationships: the Spatial Containment (defined here) the Element Composition

Definition at line 146 of file Ifc2x3/IfcColumnAutoImpl.h.

Member Function Documentation

◆ comparedToEarlyImpl()

virtual bool OdIfc2x3::IfcColumn::comparedToEarlyImpl ( const OdDAI::ApplicationInstance * pOther,
OdRx::Ordering & ordering ) const
overridevirtual

Early-bound version of instances comparison.

Parameters
pOther[in] Other application instance.
ordering[out] Receives the ordering (comparison) status.
Returns
true if comparison was performed, false if method has no implementation, so late-bound version could be applied.
Remarks
If the method returns true, the ordering parameter can receive one of the following statuses:
Value Description kLessThan -1 This object < Other Object. kEqual 0 This object = Other Object. kGreaterThan 1 This object > Other Object. kNotOrderable 2 This class is not orderable.

Reimplemented from OdIfc2x3::IfcBuildingElement.

◆ getInstanceType()

virtual OdDAI::Entity * OdIfc2x3::IfcColumn::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 OdIfc2x3::IfcBuildingElement.

◆ isKindOf()

virtual bool OdIfc2x3::IfcColumn::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 OdIfc2x3::IfcBuildingElement.

◆ type()

virtual OdIfc::OdIfcEntityType OdIfc2x3::IfcColumn::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 OdIfc2x3::IfcBuildingElement.


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