2012

Table Of Contents
Visual Fidelity for Annotative Objects in Previous Releases
You can specify that annotative on page 2289 objects maintain visual fidelity
when they are viewed in AutoCAD 2007 (and earlier releases) with the
SAVEFIDELITY system variable.
If you work primarily in model space, it is recommended that you turn off
visual fidelity (set SAVEFIDELITY to 0). However, if you need to exchange
drawings with other users, and layout fidelity is most important, then visual
fidelity should be turned on (SAVEFIDELITY set to 1).
Annotative objects may have multiple
scale representations on page 2318. When
visual fidelity is on, annotative objects are decomposed and scale
representations are saved (in an anonymous block on page 2289) to separate
layers. These layers are named based on their original layer and appended
with a number. If you explode the block in AutoCAD 2007 (or earlier releases),
and then open the drawing in AutoCAD 2008 (or later releases), each scale
representation becomes a separate annotative object, each with one annotation
scale. It is recommended that you do not edit or create objects on these layers
when working with a drawing created in AutoCAD 2008 (and later releases)
in AutoCAD 2007 (and earlier releases).
When visual fidelity for annotative objects is not selected, a single model
space representation is displayed on the Model tab. Depending on the setting
of the ANNOALLVISIBLE system variable, more annotation objects may be
displayed on the Model tab, and more objects may be displayed in paper space
viewports at different sizes than in AutoCAD 2008 and later releases.
For a procedure to set visual fidelity for annotative objects, see To save drawings
with visual fidelity for annotative objects.
Annotative Object Properties in Previous Releases
In an AutoCAD 2008 drawing, when an annotative block does not have its
paper orientation set to match the layout, and the block contains multiline
attributes that are based on a text style that is not set to match the orientation
of the layout, the attributes may shift positions if you open this drawing in
AutoCAD 2007 (and earlier releases).
Layer Property Overrides in Previous Releases
When you open an AutoCAD 2008 drawing containing layer property
overrides, overrides are not visible. The property override settings are retained
when the drawing is saved in a previous release, and are visible again when
the drawing is opened in AutoCAD 2008.
Work with Drawings in Earlier Releases | 1955