8.9.3.39 IfcOffsetCurve
ABSTRACT This definition may not be instantiated
8.9.3.39.1 Semantic definition
An IfcOffsetCurve is an abstract entity describing a curve that is defined relative to another curve according to an offset that may be constant or variable along the referenced curve.
8.9.3.39.2 Entity inheritance
-
- IfcCurve
- IfcAnnotationFillArea
- IfcBooleanResult
- IfcBoundingBox
- IfcCartesianPointList
- IfcCartesianTransformationOperator
- IfcCsgPrimitive3D
- IfcDirection
- IfcFaceBasedSurfaceModel
- IfcFillAreaStyleHatching
- IfcFillAreaStyleTiles
- IfcGeometricSet
- IfcHalfSpaceSolid
- IfcLightSource
- IfcPlacement
- IfcPlanarExtent
- IfcPoint
- IfcSectionedSpine
- IfcSegment
- IfcShellBasedSurfaceModel
- IfcSolidModel
- IfcSurface
- IfcTessellatedItem
- IfcTextLiteral
- IfcVector
8.9.3.39.3 Attributes
# | Attribute | Type | Description |
---|---|---|---|
IfcRepresentationItem (2) | |||
LayerAssignment | SET [0:1] OF IfcPresentationLayerAssignment FOR AssignedItems |
Assignment of the representation item to a single or multiple layer(s). The LayerAssignments can override a LayerAssignments of the IfcRepresentation it is used within the list of Items. |
|
StyledByItem | SET [0:1] OF IfcStyledItem FOR Item |
Reference to the IfcStyledItem that provides presentation information to the representation, e.g. a curve style, including colour and thickness to a geometric curve. |
|
IfcCurve (1) | |||
* | Dim | IfcDimensionCount |
This attribute is formally derived.
The space dimensionality of this abstract class, defined differently for all subtypes, i.e. for IfcLine, IfcConic and IfcBoundedCurve. |
Click to show 3 hidden inherited attributes Click to hide 3 inherited attributes | |||
IfcOffsetCurve (1) | |||
1 | BasisCurve | IfcCurve |
The curve that is being offset. |
8.9.3.39.4 Formal representation
ENTITY IfcOffsetCurve
ABSTRACT SUPERTYPE OF (ONEOF
(IfcOffsetCurve2D
,IfcOffsetCurve3D
,IfcOffsetCurveByDistances))
SUBTYPE OF (IfcCurve);
BasisCurve : IfcCurve;
END_ENTITY;