Annotative objects and styles are used to control the size and scale at which annotation objects are displayed in model space or a layout.
When using annotative objects, the process of scaling annotation objects is automated for you. Annotative objects are defined by specifying a paper height or scale, and then the annotation scales at which the they should be displayed for. An annotative object can have multiple scales assigned to, and each scale representation can be moved independently of each other.
Each viewport on a layout is assigned an annotation scale, which is often the same as its viewport scale value. The annotation scale of a viewport or model space, controls when the annotation object is displayed and at which size. If a scale is not assigned to an annotation object but is used in a viewport, the annotation object is not displayed.
The following lists the types of annotation objects and styles that can be annotative:
Geometric tolerances