8.18.3.9 IfcProductDefinitionShape
8.18.3.9.1 Semantic definition
The IfcProductDefinitionShape defines all shape relevant information about an IfcProduct. It allows for multiple geometric shape representations of the same product. The shape relevant information includes:
- the shape representation including geometric representation items (for 3D solids, 2D annotations, etc.) and:
- associated presentation information (line color, line type, surface rendering properties)
- assignment to presentation layers (CAD layers for visibility control)
- or the topological representation items for connectivity systems (vertex, edge, face representations) that may include geometric representation items (vertex points, edge curves, face surfaces)
8.18.3.9.2 Entity inheritance
8.18.3.9.3 Attributes
| # | Attribute | Type | Description |
|---|---|---|---|
| IfcProductRepresentation (3) | |||
| 1 | Name | OPTIONAL IfcLabel |
The word or group of words by which the product representation is known. |
| 2 | Description | OPTIONAL IfcText |
The word or group of words that characterize the product representation. It can be used to add additional meaning to the name of the product representation. |
| 3 | Representations | LIST [1:?] OF IfcRepresentation |
Contained list of representations (including shape representations). Each member defines a valid representation of a particular type within a particular representation context. |
| Click to show 3 hidden inherited attributes Click to hide 3 inherited attributes | |||
| IfcProductDefinitionShape (2) | |||
| ShapeOfProduct | SET [1:?] OF IfcProduct FOR Representation |
The IfcProductDefinitionShape shall be used to provide a representation for a one or more instances of IfcProduct. |
|
| HasShapeAspects | SET [0:?] OF IfcShapeAspect FOR PartOfProductDefinitionShape |
Reference to the shape aspect that represents part of the shape or its feature distinctively. |
|
8.18.3.9.4 Formal propositions
| Name | Description |
|---|---|
| OnlyShapeModel |
Only representations of type IfcShapeModel, i.e. either IfcShapeRepresentation or IfcTopologyRepresentation should be used to represent a product through the IfcProductDefinitionShape.__ |
|
|
8.18.3.9.5 Formal representation
ENTITY IfcProductDefinitionShape
SUBTYPE OF (IfcProductRepresentation);
INVERSE
ShapeOfProduct : SET [1:?] OF IfcProduct FOR Representation;
HasShapeAspects : SET [0:?] OF IfcShapeAspect FOR PartOfProductDefinitionShape;
WHERE
OnlyShapeModel : SIZEOF(QUERY(temp <* Representations |
(NOT('IFC4X3_ADD2.IFCSHAPEMODEL' IN TYPEOF(temp)))
)) = 0;
END_ENTITY;