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During the modeling operation, annotations are attached to the annotated entities through
ATTRIB_ANNOTATION. This associates an
ANNOTATION with its owning
ENTITY and allows quick updating of the annotations as the operation progresses. These attributes are normally removed when the operation completes.
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The
ATTRIB_ANNOTATION instances are the specific
ANNOTATION derived instances, such as
SWEEP_ANNO_VERTEX_TOP. Because the
ATTRIB_ANNOTATION does not normally persist, the only way to get the annotations is by using
api_find_annotations.
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The
ATTRIB_ANNOTATION may be retained by setting the
unhook_annotations option to
FALSE (for example, when working in
Scheme AIDE with annotations). The
annotation option turns on the creation of the annotations in a modeling operation. If the
unhook_annotations option is not turned off, the modeling operation automatically clears the
ATTRIB_ANNOTATION, which would remove the handles and data that
Scheme AIDE uses.
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