2013

Table Of Contents

When you insert a block you are inserting a block reference. The information

is not copied from the block definition to the drawing area. Instead, a link is

established between the block reference and the block definition. Therefore,

if the block definition is changed, all references are updated automatically.

Use PURGE to remove unused block definitions from a drawing.

Blocks and Layers

A block can be composed of objects drawn on several layers with various

colors, linetypes, and lineweight properties. Although a block is always inserted

on the current layer, the block reference preserves information about the

original layer, color, and linetype properties of the objects that are contained

in the block. You can control whether objects in a block retain their original

properties or inherit their properties from the current layer, color, linetype,

or lineweight settings.

Annotative Blocks

You can also create annotative blocks. For more information about creating

and working with an annotative blocks, see

Create Annotative Blocks and

Attributes

(page 497).