IfcMaterialDefinitionRepresentation defines presentation information relating to IfcMaterial. It allows for multiple presentations of the same material for different geometric representation contexts.
The IfcMaterialDefinitionRepresentation can apply
- different presentation styles for different representation contexts, for example, a different style for sketch view, model view or plan view, or for different target scales,
- for each representation context is can apply curve style, fill area style (hatching), symbol, text and surface style.
As shown in Figure 18.104.22.168.A, the presentation assignment can be specific to a representation context by adding one and more IfcStyledRepresentation's. Each of them includes a single IfcStyledItem with exactly zero or one style for either curve, fill area, surface, text or symbol style that is applicable.
The word or group of words by which the product representation is known.
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.
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Reference to the material to which the representation applies.
Only representations of type IfcStyledRepresentation should be used to represent material through the IfcMaterialRepresentation.
ENTITY IfcMaterialDefinitionRepresentation SUBTYPE OF (IfcProductRepresentation); RepresentedMaterial : IfcMaterial; WHERE OnlyStyledRepresentations : SIZEOF(QUERY(temp <* Representations | (NOT('IFC4X3_TC1.IFCSTYLEDREPRESENTATION' IN TYPEOF(temp))) )) = 0; END_ENTITY;