Copyright Goodheart-Willcox Co., Inc. 366 AutoCAD and Its Applications—Advanced Dimensioning Drawing Views Dimensioning Drawing Views After placing drawing views on a paper space layout, you can dimension each view as needed in the layout. See Figure 14-24. When dimensioning drawing views, make sure that the DIMASSOC system variable is set to 2 so that associative dimensions are created. Associative dimensions are associated to the dimensions of the model and update when the physical model changes. However, depending on edits to the model geometry, some dimensions can become disassociated. Associative dimensions added to a drawing view are attached to the underlying object geometry. As the size or location of an object changes, the associative dimensions automatically adjust to their new size or location. Associative dimensions can become disassociated when a 3D model is modifi ed or updated and the dimensions describing the underlying geometry lose their attached location. The Annotation Monitor is used to monitor and notify you of any changes in the associativity of dimensions placed in drawing views. This feature can be turned on by picking the Annotation Monitor button on the status bar. Picking this button displays the Annotation Monitor icon to the right of the button. See Figure 14-25A. The Annotation Monitor is turned off by default, but it is automatically activated when a model is edited and dimensions are updated. The status of the Annotation Monitor is controlled by the ANNOMONITOR system variable. The Annotation Monitor icon provides feedback regarding the state of associative dimensions. If any associative dimensions become disassociated, the icon turns red and a balloon notifi cation appears. See Figure 14-25B. In addition, yellow alert icons appear in the layout next to the disassociated dimensions. You can click the balloon notifi cation link to delete the dimensions all at once, or you can pick on individual alert icons in the layout to update the dimensions. Section line created for full section A B Auxiliary view created from full section view Figure 14-23. An auxiliary view can be created to show the true shape of an inclined surface by drawing a full section view. A—A full section view is generated from the front view of the object by drawing a section line on the inclined surface. B—The completed drawing after freezing the MD_Annotation layer.