Autodesk 057B1-41A111-1001 - AutoCAD LT 2010, Руководство пользователя

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and earlier releases. Visual fidelity is controlled by 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 (set SAVEFIDELITY to 1).
NOTE
The SAVEFIDELITY system variable does not effect saving a drawing to the
AutoCAD LT 2010 drawing or DXF file formats.
Annotative objects may have multiple scale representation. When visual
fidelity is on, annotative objects are decomposed and scale representations
are saved (in an anonymous block) to separate layers, which are named based
on their original layer and appended with a number. If you explode the block
in AutoCAD LT 2007 or earlier releases, and then open the drawing in AutoCAD
LT 2008 or later releases, each scale representation becomes a separate
annotative object, each with one annotation scale. It is not recommended
that you edit or create objects on these layers when working with a drawing
created in AutoCAD LT 2008 and later releases in AutoCAD LT 2007 and earlier
releases.
When this option is not selected, a single model space representation is
displayed on the Model layout. More annotation objects may be displayed on
the Model layout depending on the ANNOALLVISIBLE setting. Also, more
objects may be displayed in paper space viewports at different sizes than in
AutoCAD LT 2008 and later releases.
Reduce the Time Required to Save a Drawing File
You can reduce the time required to save a drawing file if you specify
incremental saves rather than full saves. An incremental save updates only
those portions of the saved drawing file that you changed.
When you use incremental saves, drawing files will contain a percentage of
potentially wasted space. This percentage increases after each incremental
save until it reaches a specified maximum, at which time a full save is
performed instead. You can set the incremental save percentage in the Open
and Save tab of the Options dialog box or by setting the value of the system
variable ISAVEPERCENT. If you set the value of ISAVEPERCENT to 0, all saves
are full saves.
To reduce the size of drawing files, it is recommended that you perform a full
save (with ISAVEPERCENT set to 0) before transmitting or archiving a drawing.
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