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Define and Reference
Blocks
Work with Blocks
A block is one or more objects combined to create a single object. Blocks help
you reuse objects in the same drawing or in other drawings.
Overview of Blocks
A block can be composed of objects drawn on several layers with various
properties. You can use several methods to create blocks.
How Blocks Are Stored and Referenced
Every drawing file has a block definition table that stores all block definitions,
which consist of all information associated with the block. It is these block
definitions that are referenced when you insert blocks in your drawing.
Each rectangle below represents a separate drawing file and is divided into two
parts:
The block definition table
The objects in the drawing
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