unreferenced blocks

Does anybody know of a method for getting rid of unreferenced blocks. I have a couple that won't go away no matter what I do. I've erased everything, exploded all the AEC objects, removed all MV blocks, purged everything in sight, double checked to make sure they aren't part of a dimensions style, etc. I guess what I'm looking for is a routine (VBA, lisp, etc.) that will allow me to remove all references to a block (by name) from the file. I've looked over the discussion groups and haven't found anything so far. Unfortunately, I have many, many files with this problem, so a solution a little more elegant than the wblock method would be a definite advantage.

Thanks in advance
Marcus

 

Are the blocks referenced in a dictionary?

--
Autodesk Discussion Group Facilitator

have a couple that won't go away no matter what I do. I've erased
everything, exploded all the AEC objects, removed all MV blocks, purged
everything in sight, double checked to make sure they aren't part of a
dimensions style, etc. I guess what I'm looking for is a routine (VBA,
lisp, etc.) that will allow me to remove all references to a block (by name)
from the file. I've looked over the discussion groups and haven't found
anything so far. Unfortunately, I have many, many files with this problem,
so a solution a little more elegant than the wblock method would be a
definite advantage.

 

What version of ADT are you running?
Have you tried ExportToAutoCAD?

that won't go away no matter what I do. I've erased everything, exploded all the AEC
objects, removed all MV blocks, purged everything in sight, double checked to make sure
they aren't part of a dimensions style, etc. I guess what I'm looking for is a routine
(VBA, lisp, etc.) that will allow me to remove all references to a block (by name) from
the file. I've looked over the discussion groups and haven't found anything so far.
Unfortunately, I have many, many files with this problem, so a solution a little more
elegant than the wblock method would be a definite advantage.

 

post one file, we may find a solution

have a couple that won't go away no matter what I do. I've erased
everything, exploded all the AEC objects, removed all MV blocks, purged
everything in sight, double checked to make sure they aren't part of a
dimensions style, etc. I guess what I'm looking for is a routine (VBA,
lisp, etc.) that will allow me to remove all references to a block (by name)
from the file. I've looked over the discussion groups and haven't found
anything so far. Unfortunately, I have many, many files with this problem,
so a solution a little more elegant than the wblock method would be a
definite advantage.

 

Have you tried using superpurge?

Xolo

 

Maybe see if this turns up anything...

;;;(brefs BLOCKNAME)
;;;Returns list of ENAMES of references

(defun brefs (blk / bnam)
(if (setq bnam (tblobjname "block" blk))
(mapcar 'cdr
(vl-remove-if-not
'(lambda (x) (= (car x) 331))
(entget (dxf 330 (entget bnam)))
)
)
(alert "No references found!")
)
)

Don

 

Maybe they are null blocks (blocks with no entity).

Try to redefine the blocks and see if they come out.

Or: erase all remove <select all visible objects> return.

Take a look at the number of entities selected and removed.

--

Marc'Antonio Alessi
http://xoomer.virgilio.it/alessi
(strcat "NOT a " (substr (ver) 8 4) " guru.")

--

 

Hi mhawkes,

Sounds like you are using ADT or something similar. Not sure what version
you have.

To purge these MV Blocks use either the AECSTYLEMANAGER command or the
pulldown menu Desktop > Style Manager... and highlight the file or the style
you want to purge and hit the Purge Styles button at the top. (Not sure
where the menu is in 2005 yet). Then if you have to you should be able to
purge them out using the purge command.

Hope this helps.

Arnold Williams