CAD tip # 7082:

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CAD

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Selecting block objects by name.

In order to quickly select block references from a DWG drawing and first of all to perform block selections from AutoCAD script files, you may need a useful tool for selection of blocks by their name.

This function can be performed in two simple ways. E.g. if you need to erase (delete) all blocks named "MYBLOCK" from your drawing, use one of the following methods (menu-macro format used for readability, for scripts replace the semicolons by spaces):

_ERASE;(ssget "_X" '((0 . "INSERT")(2 . "MYBLOCK")))
SSX;;B;MYBLOCK;;_ERASE;_P;;

The first method uses the LISP object selection function. The second method uses the command SSX from Express Tools.

None of these methods can be used in AutoCAD LT.

ACAD

*CAD

27.11.2009 21770×

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applies to: AutoCAD ·

See also:
Tip 14526:	How to export geometry from AutoCAD DWGs to JSON files and import it back?
Tip 14446:	Undocumented options in AutoCAD FIELDs - hyperlinks, hexadecimal or binary format
Tip 14039:	How to display the total volume or surface of 3D solids in DWG?
Tip 13938:	ModDXF - utility for bulk modification/display of internal DXF properties in DWG entities.
Tip 13878:	SelectSimilar - extended selections for AutoCAD, incl. LT and Web versions

Selected tip: How to transfer your Plot style table to Excel?

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