2013

Table Of Contents
Update a Block Definition That Originated from a Library Drawing
(Advanced)
Content palette (page 34) does not overwrite an existing block definition in
a drawing with one that comes from another drawing. To update a block
definition that came from a library drawing, use WBLOCK to create a separate
drawing file from the library drawing block. Then, use INSERT to overwrite
the block definition in the drawing that uses the block.
NOTE Block descriptions are stripped off when using INSERT. Use the Clipboard
to copy and paste a block description displayed in the Define Block dialog box
from one block definition to another.
Redefine Block Attributes
You can attach attributes to a block when you define or redefine that block.
When you are prompted to select the objects to include in the block definition,
include the desired attributes in the selection set. Redefining the attributes in
the block definition has the following effects on block references that were
previously inserted:
Constant attributes, which have a fixed value, are lost and replaced by any
new constant attributes.
Variable attributes remain unchanged, even if the new block definition
has no attributes.
New attributes do not appear in the existing block references.
See also:
Attach Data to Blocks (Block Attributes) (page 323)
Modify the Data in Block Attributes
You can edit the values of attributes that are attached to a block and inserted
in a drawing.
You can use any of the following methods to edit the values of attributes
attached to a block:
Double-click the block to display the Enhanced Attributes Editor
Press Ctrl and double-click the attribute to display the in-place editor
Open the Properties Inspector palette and select the block
334 | Chapter 7 Define and Reference Blocks