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CAD tip CAD tip # 3589:

Question CAD 
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Q - question

How to delete (purge) unused layer filters?

A - answer In AutoCAD 2004, there is the "Delete all" button in the Named layer filter part of the Layer Properties Manager. In AutoCAD 2005, 2006, 2007 and higher, select your Layer filters in the Layer Properties Manager dialog, right-click and choose Delete.

In older AutoCAD versions (or in AutoCAD 2004/2005) you can perform the following VBA macro to erase (remove) the layer filters (use e.g. the VBASTMT command, all on a single line):

For Each ent In ThisDrawing.Layers.GetExtensionDictionary("ACAD_LAYERFILTERS"): ent.Delete: Next ent

In AutoCAD 2005, add also (single line):

For Each ent In ThisDrawing.Layers.GetExtensionDictionary("ACLYDICTIONARY"): ent.Delete: Next ent

There is also the "REMLAY" VLISP downloadable from the CAD Studio VIP server. Or you can use the DeleteFilters.VLX utility available on (APPLOAD the VLX file).

In AutoCAD 2006 and higher you can also use FILTERS command.

As a standalone EXE tool for purging layer filters you can use the PurgeIDS utility (see

100% *  CAD 
5.2.2004    67243×   FAQ  

See also:
Tip 12215:How to change truecolor DWG objects to indexed ACI colors?
Tip 11054:Difference volume (3D solid) between two TIN surfaces (sets of coordinates)
Tip 10015:How to select and modify objects in ALL layouts of the DWG?
Tip 9721:Inverse layer filter - switching off all other layers.
Tip 9149:Total area of selected regions or hatches (by layer) - AddArea

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