ssget with Fence selection and unlocked layers only

[J-Rocks]

Hello,

How can I use ssget with Fence selection and unlocked layers only ?

example: (ssget "_F:L" (list pt1 pt2)) but it does not work and it gives an error message: bad ssget list .

Thank you.

[Sea-Haven]

(ssget "F" (list pt1 pt2))  not sure about locked layers some else will add that.

[J-Rocks]

What's new you come up with than my try ?

[paullimapa]

Why would it matter if ssget grabs objects on Locked Layers?

Nothing will happen to those selected objects because they're on Locked Layers.

[J-Rocks]

Thanks,
I am trying to avoid selecting objects on locked layer and not the reverse one and that is why I am trying to use it :L with Fence selection but it does not work the way I combined the codes.

[paullimapa]

seems like lisp does not offer that kind of combination for the ssget function

you may have to do what this thread mentions by cycling through the Layer table to find out which are Locked Layers and then create a Filter group for the ssget function so that the fence option will work the way you want.

ssget and locked layers - Autodesk Community - AutoCAD

[J-Rocks]

Thanks,
That's what I am trying to avoid because the quantity of layers in my drawings are almost uncountable thus this means too slow processing.

[ВeekeeCZ]

So make a list of locked layers (or unlocked if it's sorter), and use them to  '((8 . x)) layer filter. 

Edit: Now I see it was suggested before. I would use (ssget "F"), then filter out objects on locked layers. The slowest thing would be (ssget "f") for sure. The later filtering you would not notice...

[hak_vz]

@J-Rocks 

Try this. Modify selection set creation according to your needs.

(defun unFrozenLayerNames ( / str) 
	(setq str "")
	(vlax-for lay 
		(vlax-get (vla-get-activedocument (vlax-get-acad-object)) 'Layers)
		(if (> (vlax-get lay 'Lock) -1)
			(setq str (strcat  str (vlax-get lay 'Name) ","))
		)
	)
)
(setq ss (ssget "F" (list (getpoint "\npoint 1 >")(getpoint "\npoint 2 >")) (list (cons 8 (unFrozenLayerNames)))))

[ВeekeeCZ]

I would consider XREF layers as locked too. 

[Kent1Cooper]

---

@J-Rocks wrote:

.... How can I use ssget with Fence selection and unlocked layers only ?

example: (ssget "_F:L" (list pt1 pt2)) but it does not work ....

---

One thing you can do --

With pt1 and pt2 being your points saved for the Fence [can be more than two]:

(if (setq ss (ssget "_F" (list pt1 pt2))); fence selection found things [on all Layers]

  (progn ; then

    (sssetfirst nil ss); select/grip/highlight them all, then apply to that:

    (setq ssu (ssget ":L")); "see" those on unlocked Layers only

  ); progn

); if

[paullimapa]

(ssget ":L") will definitely not prevent xref layers from being selected unless they're locked in the Layer table

[Kent1Cooper]

I don't concur with the concerns about Xref Layers.  Nothing indicates that you would not want to select Xrefs if there are any crossed by the Fence -- it may or may not matter, depending on what you intend to do with the selection.  In any case, (ssget) will "see" only the Layer an Xref [as a whole] is referenced on, not those of nested objects in it [i.e. not Xref-dependent Layers], so it doesn't matter whether those are locked, or "considered" locked.

[J-Rocks]

Thank you guys for your kind replies.
I did not talk about Xref layers but normal ones.

I come up with a solution to just unlock layers of selected objects if any resides on lock one then lock it back on exit.

Have a good day.