8.9.3.10 IfcBoundedCurve
RV ⓘ
AbV ⓘ
ABSTRACT This definition may not be instantiated
8.9.3.10.1 Semantic definition
An IfcBoundedCurve is a curve of finite length.
Definition according to ISO/CD 10303-42:1992 A bounded curve is a curve of finite arc length with identifiable end points. Entity adapted from bounded_curve defined in ISO10303-42. New entity in IFC1.0Informal Propositions
- A bounded curve has finite arc length.
- A bounded curve has a start point and an end point.
8.9.3.10.2 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
8.9.3.10.3 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. The inverse attribute LayerAssignments has been added. The inverse attribute LayerAssignment has been restricted to max 1. Upward compatibility for file based exchange is guaranteed. |
|
| 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. The inverse attribute StyledByItem has been added. |
|
| Click to show 2 hidden inherited attributes Click to hide 2 inherited attributes | |||
| 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. |
8.9.3.10.4 Formal representation
ENTITY IfcBoundedCurve
ABSTRACT SUPERTYPE OF (ONEOF
(IfcBSplineCurve
,IfcCompositeCurve
,IfcIndexedPolyCurve
,IfcPolyline
,IfcTrimmedCurve))
SUBTYPE OF (IfcCurve);
END_ENTITY;