ISO 10303-214:2010(E)
An Annotation_curve is a two-dimensional trimmed curve that is used to annotate a drawing or a geometric model.
An Annotation_curve is a type of Annotation_element.
Each Annotation_curve may be a Projection_curve, a Dimension_curve, or a Leader.
The data associated with an Annotation_curve are the following:
annotation_curve_type
The annotation_curve_type specifies the kind of annotation curve. This information is provided with respect to the intended usage of the annotated object.
EXAMPLE 'centre line' is an example for annotation_curve_type.
The annotation_curve_type need not be specified for a particular Annotation_curve.
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