2011

NOTE Most AutoCAD Map 3D commands are wildcard character-enabled. To
use a wildcard character as a literal character, precede the wildcard character with
a back quote (`). For example, if you have a layer named "Floor Plan #1," from
which you want to query some objects, type Floor Plan `#1 when you create the
query. If you select the name from a list box, the back quote is added automatically
to the text that appears in any corresponding edit box. The wildcard characters
for which this is valid include #, @, .(period), ~.
Improving Performance
You can improve performance in many areas by taking a few steps in advance.
For example, creating indexes can greatly speed up queries and save back.
The following table lists some of the steps you can take to improve
performance. For more information on an item, click the link.
Feature Layers
You can filter a feature layer to reduce the number of features
in the layer and improve performace. You can filter data as
Filtering Feature Layers
(page 1216)
you bring it into your map (in Data Connect, click Add To
Map With Query), or after you bring it in (right-click the layer
and choose Query To Filter Data).
Query Attached
Drawings
Using the AutoCAD Map 3D global coordinate systems re-
quires many complex calculations and can decrease perform-
To turn off a global co-
ordinate system (page
150) ance for operations such as querying objects from attached
drawings and saving back objects.
To reduce the amount of time it takes to perform a query,
create an index. Instead of searching all locations, properties,
To create a drawing in-
dex (page 1294)
object data, or database links to find matching data, AutoCAD
Map 3D searches only the relevant index. If you created in-
dexes in a previous release of AutoCAD Map 3D, it may help
1538 | Chapter 11 Command Reference