2004

330 | Chapter 16 Draw Geometric Objects
Redefine Block Attributes
You can attach attributes to a block when you define or redefine that block.
When AutoCAD prompts you 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)” on page 339
To modify an existing block definition
1 Select the block to modify.
2 Right-click the block and click Properties on the shortcut menu.
3 In the Properties palette, select and modify X and Y position, scale,
rotation values, or other properties.
Command line
PROPERTIES
To update a block definition that originated from a drawing file
1 On the Tools menu, click DesignCenter.
2 In the tree view, click the folder that contains the drawing file from which
the block originated.
3 In the content area (on the right side), right-click the drawing file.
4 On the shortcut menu, click Insert as Block.
5 In the Insert dialog box, click OK.
6 In the alert box, click Yes to overwrite the existing block definition.
7 Press
ESC to exit the command.
To modify a block description
1 From the Modify menu, choose Object ➤ Block Description.
2 In the Block Definition dialog box, in the Name list, select the block for
which you want to modify the block description.