Topic: Can't get rid of a layer in a drawing

[iliekater]

I have a drawing file and among other layers , there is also the "Dimensions" layer . I want to delete that layer but I can't . I used the PURGE command but it shows me that it cannot be purged . I can't find any objects containing that layer and that layer is not the current one .
The only thing I noticed is that if I select all objects on layer "Electrical" and explode them , then I can delete the "Dimensions" layer . But I wonder , how can it be that I can purge that layer only if I explode some items ? ! I mean after exploding them there isn't any object revealed on the "Dimensions" layer ! It's like a ghost layer !
If you wish , you can try it here :
http://rapidshare.com/files/108163616/1.dwg.html

[Kerry]

How about adding the file as an attachment here ..
rapidshare thinks I'm currently downloading it ... I'm not !

[Glenn R]

It's probably a 'BlockBegin' object that has been created using that layer. These are non-graphical objects that signify the 'begining' of a block definition and it's corresponding entry, 'BlockEnd'.

[Keith™]

There are 42 attributes with a SEQEND on layer "Dimensions" attached to the electrical blocks. By exploding the blocks, the seqend is removed and the attributes become text or attribute definitions, depending upon how you explode them.

The reason this happens is that when a block with attributes is inserted, SEQEND takes on the layer of the current layer. Subsequently changing the block and associated attributes to a different layer does not change the SEQEND entry.

To see this problem in action, create a completely new layer and set it current, insert a block with attributes on that layer, then change the layer of the block to a different layer, set a different layer current and try to purge the new layer. You will find it no longer will purge.

To correct this you can set the correct layer and re-insert the offending blocks or you can merge the offending layer with the electrical layer.

[rkmcswain]

I have a drawing file and among other layers , there is also the "Dimensions" layer . I want to delete that layer but I can't . I used the PURGE command but it shows me that it cannot be purged . I can't find any objects containing that layer and that layer is not the current one

Use LAYMRG and merge it onto layer "0".

[Keith™]

Here is a piece of code I modified to suit the current needs:

Code: [Select]

;;;   SEQFX.LSP
;;;   Copyright (C) 2000-2008 by K.E. Blackie
;;;
;;;   kblackie -AT- resourcecad.com
;;;
;;;   Permission to use, copy, modify, and distribute this software
;;;   for any purpose and without fee is hereby granted, provided
;;;   that the above copyright notice appears in all copies and that
;;;   both that copyright notice and this permission notice appear in
;;;   all supporting documentation.
;;;
;;;   THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED
;;;   WARRANTY.  ALL IMPLIED WARRANTIES OF FITNESS FOR ANY PARTICULAR
;;;   PURPOSE AND OF MERCHANTABILITY ARE HEREBY DISCLAIMED.
;;;
;;;
;;;
;;;   23 October 2000
;;;   17 April 2008
;;;
;;;----------------------------------------------------------------------------
;;;   DESCRIPTION
;;;----------------------------------------------------------------------------
;;;   C:SEQFX
;;;
;;;   This function fixes seqend entries on all block references caused
;;;   by inserting a block with attributes on a wrong layer or from changing
;;;   a block layer after it is inserted.
;;;   All attributes are left in place and remain unmodified.
;;;   The seqend object is moved to the current layer of the block reference.
;;;   No error checking is provided. It is presumed the user will know if there
;;;   are blocks with attributes already inserted in the drawing.
;;;
;;;----------------------------------------------------------------------------
;;;----------------------------------------------------------------------------

(defun C:SEQFX ()
  (setq sset (ssget "x" '((0 . "INSERT")(66 . 1)))
ndx 0)
  (repeat (sslength sset)
    (setq eobj (ssname sset ndx)
          elay (cdr (assoc 8 (entget eobj)))
          tmp (entnext eobj)
    )
    (while (/= "SEQEND" (cdr (assoc 0 (entget tmp))))
      (setq tmp (entnext tmp))
    )
    (setq seqend (vlax-ename->vla-object tmp))
    (vla-put-layer seqend elay)
    (setq ndx (1+ ndx))
  )
  (princ)
)


[daron]

laydel also works. Just draw a line on offending layer, and select that line when running laydel. It should go away.

[Crank]

laydel also works. Just draw a line on offending layer, and select that line when running laydel. It should go away.

But then you also may lose data. I prefer LAYTRANS but LAYMRG is also a good option.