IfcAnnotationSurfaceOccurrence

IfcAnnotationSurfaceOccurrence

Definition from IAI: An annotation surface occurrence is a surface with a style assignment. It provides the capabilities to assign

surface shading information,
surface rendering information
surface lighting information
surface textures

to a surface, or all surfaces of a face based surface model, a shell based surface model, or a solid model. If surface textures are defined for a vertex based geometry, texture maps may be used to define the texture coordinates for each face.

NOTE No direct corresponding STEP entity, the entity has been defined in analogy to the other annotation occurrence entity.

HISTORY New entity in Release IFC2x 2nd Edition.

EXPRESS specification:

ENTITY IfcAnnotationSurfaceOccurrence

SUBTYPE OF (

IfcAnnotationOccurrence);

END_ENTITY;

Inheritance graph

ENTITY IfcAnnotationSurfaceOccurrence;

ENTITY IfcRepresentationItem;

ENTITY IfcStyledItem;

Item

IfcRepresentationItem;

Styles

SET [1:?] OF IfcPresentationStyleAssignment;

ENTITY IfcAnnotationOccurrence;

Name

OPTIONAL IfcLabel;

ENTITY IfcAnnotationSurfaceOccurrence;

END_ENTITY;