An IfcShellBasedSurfaceModel represents the shape by a set of open or closed shells. The connected faces within the shell have a dimensionality 2 and are placed in a coordinate space of dimensionality 3.
- The dimensionality of the shell based surface model is 2.
- The shells shall not overlap or intersect except at common faces, edges or vertices.
|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.
|Click to show 2 hidden inherited attributes Click to hide 2 inherited attributes|
|1||SbsmBoundary||SET [1:?] OF IfcShell||
No description available.
This attribute is formally derived.
The space dimensionality of this class, it is always 3.
ENTITY IfcShellBasedSurfaceModel SUBTYPE OF (IfcGeometricRepresentationItem); SbsmBoundary : SET [1:?] OF IfcShell; DERIVE Dim : IfcDimensionCount := 3; END_ENTITY;