Blocks, Attributes, and External References

  • Joe Sutphin


Blocks collect any number of AutoCAD entities into a single container object. Create a BlockReference object to insert the Block container object (also known as a block definition) model space, paper space, or another block definition. Because the BlockReference refers to the block definition’s geometry, it is a very efficient means for managing drawing data:
  • You can add, move, copy, and so on, the entity collection as a whole.

  • You can create a library of commonly used geometry, ready for reuse.

  • You can save memory by storing all block references in one block definition.

  • You can make global changes by redefining the block definition at any time—all block references immediately reflect the changes.


External Reference Block Reference Attribute Definition Simple Block Drawing File 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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© Joe Sutphin 2004

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  • Joe Sutphin

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