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CAD tip CAD tip # 5448:

Question CAD 
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Q - question

How to select all entities in a specified layer?

A - answer To quickly select all objects from a given layer you can use the QSELECT or FILTER commands and choose the layer from a layer list. Or - in newer AutoCAD versions - use the command SELECTSIMILAR and pick a sample object.

But there is a quicker way - you can use a simple macro which selects all entities in the same layer as the layer of a picked entity (you can also pick nested objects and multiple objects/layers). The SELLAY.LSP macro can be found on www.cadstudio.cz/download or just type in:

(defun C:SELLAY ( / e lay)
 (setq e (nentsel "Select entity on a layer: "))
 (if e (ssget "_X" (list(cons 8 (cdr(assoc 8 (entget(car e))))))))
)
Load the LSP file with APPLOAD and then anywhere AutoCAD prompts to "Select objects" just type 'SELLAY (or 'SELLAYS for multiple layers).

If you enter SELLAY (or SELLAYS) as a primary command (on the Command: prompt), the objects will be selected as a grip selection set (for subsequent command). If you grip-select a group of objects before running SELLAY, only objects from this preselection set will be selected/filtered (not from the whole drawing).

ACAD
100% *  CAD 
1.3.2007    64812x  
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applies to: AutoCAD ·

See also:
Tip 10015:How to select and modify objects in all layouts of the DWG?
Tip 8857:Move all blocks containing a specific layer to that layer.
Tip 8415:Recolor entities to the color of their layer.
Tip 8128:How to quickly get the real color of a drawing entity?
Tip 7890:How to find missing numbers in a series of numbered blocks?


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