Class

Annotation

Code

IfcAnnotation

Class type

Class

URI

https://identifier.buildingsmart.org/uri/buildingsmart/ifc/4.3/class/IfcAnnotation

Definition

An annotation is an information element within the geometric (and spatial) context of a project, that adds a note or meaning to the objects which constitutes the project model. Annotations include additional points, curves, text, dimensioning, hatching and other forms of graphical notes. It also includes virtual or symbolic representations of additional model components, not representing products or spatial structures, such as survey points and lines, contour lines or similar.

Dictionary

IFC

Dictionary version

4.3

Dictionary release date

2024-01-11

Dictionary license

Dictionary state

Preview

Parent class

Status

Active

VersionDateUtc

2024-01-12

Uid

34d6582a-8218-4a4c-9073-fdbe06d6d40a

Class properties
Property set: Attributes

Optional description, provided for exchanging informative comments.

Assignment of a globally unique identifier within the entire software world.

Optional name for use by the participating software systems or users. For some subtypes of IfcRoot the insertion of the Name attribute may be required. This would be enforced by a where rule.

The type denotes a particular type that indicates the object further. The use has to be established at the level of instantiable subtypes. In particular it holds the user defined type, if the enumeration of the attribute PredefinedType is set to USERDEFINED or when the concrete entity instantiated does not have a PredefinedType attribute. The latter is the case in some exceptional leaf classes and when instantiating IfcBuiltElement directly.

Property set: Pset_AnnotationLineOfSight

Distance visible to the left of the access.

Distance visible to the right of the access.

Setback distance from the point of connection on the major element along the axis of the minor element (e.g. distance from a public road at which the line of sigfht is measured.

Angle of visibility to the left of the access.

Angle of visibility to the right of the access.

Property set: Pset_Risk

An indication or link to any associated activity or process that may trigger the hazard. If used directly on an annotation or semantic object. for an alternative see group use encoding template

Child classes