2011

Attaching a Drawing
NOTE To attach a geospatial feature source to the current drawing and bring in
its features, use Data Connect. See
Overview of Bringing In GIS Features (page
305).
Nested Drawings
If you attach a drawing that has other drawings already attached to it, those
other drawings appear in the list as nested drawings.
You can query objects from nested drawings. If a top-level drawing is not
active, you cannot see or activate nested drawings. However, if the top-level
drawing is active, you can deactivate a nested drawing.
Working with Xrefs
To query data in an external reference, delete the external reference from the
attached drawing and attach the reference drawing to the current drawing
The Order of Attached Drawings
The order in which you attach drawings can affect the properties of objects
retrieved by queries.
If two drawings use the same name for a block, layer, group, or text style,
AutoCAD Map 3D uses the definition from the first retrieved object that uses
that item.
For example, if you create a query to retrieve objects on LAYER_A, and LAYER_A
does not exist in the current drawing, AutoCAD Map 3D uses the definition
of LAYER_A in the first active attached drawing that contains objects on
LAYER_A. Objects retrieved from LAYER_A in other drawings acquire the color
and linetype that is defined for LAYER_A in this drawing. This change also
applies when you save changes back to attached drawings.
TIP To maintain consistency between drawings, define blocks, layers, groups,
and text styles in the current drawing. For example, if you define a LAYER_A in
the current drawing, AutoCAD Map 3D applies the current drawing definition of
LAYER_A to objects retrieved from LAYER_A in all attached drawings, and when
you save back, applies the current drawing layer definition to the saved objects.
For information about passwords and security, see AutoCAD help.
Attaching Drawings | 157