#### IfcSolidModel

Natural language names

##### Semantic definitions at the entity

Entity definition

Definition from ISO/CD 10303-42:1992: A solid model is a complete representation of the nominal shape of a product such that all points in the interior are connected. Any point can be classified as being inside, outside, or on the boundary of a solid. There are several different types of solid model representations.

> NOTE: Corresponding STEP entity: solid_model, only three subtypes have been incorporated into the current IFC Release - subset of manifold_solid_brep (IfcManifoldSolidBrep, constraint to faceted B-rep), swept_area_solid (IfcSweptAreaSolid), the swept_disk_solid (IfcSweptDiskSolid) and subset of csg_solid (IfcCsgSolid). The derived attribute Dim has been added at this level and was therefore demoted from the geometric_representation_item. Please refer to ISO/IS 10303-42:1994, p. 170 for the final definition of the formal standard.

> HISTORY: New entity in IFC Release 1.5

Attribute definitions

# | Attribute | Type | Cardinality | Description | A
--- | --- | --- | --- | --- | ---
| Dim :=3 | IfcDimensionCount | [1:1] | The space dimensionality of this class, it is always 3. | X

##### Inherited definitions from supertypes

Entity inheritance
Attribute inheritance

# | Attribute | Type | Cardinality | Description | A
--- | --- | --- | --- | --- | ---
IfcRepresentationItem
IfcGeometricRepresentationItem
IfcSolidModel
| Dim :=3 | IfcDimensionCount | [1:1] | The space dimensionality of this class, it is always 3. | X

##### Formal representations

XSD Specification
`<xs:element name="IfcSolidModel" type="ifc:IfcSolidModel" abstract="true" substitutionGroup="ifc:IfcGeometricRepresentationItem" nillable="true"/>
<xs:complexType name="IfcSolidModel" abstract="true">
<xs:complexContent>
<xs:extension base="ifc:IfcGeometricRepresentationItem"/>
</xs:complexContent>
</xs:complexType>
`
EXPRESS Specification
`ENTITY IfcSolidModel
ABSTRACT SUPERTYPE OF(ONEOF(IfcManifoldSolidBrep, IfcSweptAreaSolid, IfcSweptDiskSolid))
SUBTYPE OF (IfcGeometricRepresentationItem);
DERIVE
Dim : IfcDimensionCount := 3;
END_ENTITY;

EXPRESS-G diagram

`

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