burst & purge blocks in a lisp

[Anonymous]

My goal is to activate the lisp & have the block "BOM" burst so that it retains the information but can be purged, then have the blocks "BOM" & "LINDSAY" (nested in "BOM") purged.  For the burst portion it makes no difference to me if it selects the "BOM" block in the program or if I have to highlight it.  It should be noted that I am a beginner when it comes to lisp, I have some very basic things down which makes me think this can be done, but also could make me dangerous with it too.

This is code that I have written and it has me puzzled, it mimics other code in my Acaddoc.lsp file which is where I have located this as well;

;;;----------------------------------------------------------------------------
;;;BURST SHORTCUT
;;;----------------------------------------------------------------------------
(defun c:BU ()
(C:BURST)
)
(PRINC)
)

;;;----------------------------------------------------------------------------
;;;"BOM" PURGE
;;;----------------------------------------------------------------------------
(DEFUN C:BP ()
(COMMAND "-PURGE" "BLOCKS" "BOM" "no")
(princ)
)

;;;----------------------------------------------------------------------------
;;;"LINDSAY" PURGE
;;;----------------------------------------------------------------------------
(DEFUN C:LP ()
(COMMAND "-PURGE" "BLOCKS" "LINDSAY" "NO")
(princ)
)

;;;----------------------------------------------------------------------------
;;;BURST & PURGE
;;;----------------------------------------------------------------------------
(DEFUN C:BX ()
(C:BU)
(C:BP)
(C:LP)
(PRINC)
)

The burst shortcut works with no problem, however the "BOMPURGE" & "LINDSAYPURGE" are unknown commands per the command line.  I have tried "purge", "_purge" also used the letters B for block & N for no instead of the words, tried the block name with & without the quotes all of which return the same result.  From what I have seen in my search of this database my code should work as it appears to match what other have written, which makes me think its something very simple & I am overlooking it.

I also tried;

(DEFUN C:BP ()
(setq blockname "BOM")
(setq ss nil)
(setq ss (ssget "X" (list (cons 2 BOM))))
(if ss
(progn
(command "_BURST" ss "")
(command "_purge" "B" BOM "Y" "")
); progn
); if

which is code that I found on this board by EC-CAD for erasing a block & purging it, replaced the erase command with the burst to no avail.  Any help on this would be greatly appreciated.

[pbejse]

is the "LINDSAY" block contains attributes? do you want that block burst as well?

[pbejse]

If it (LINDSAY) has attributes use this:

(Defun c:BBL (/ ss mn mn)
(vl-load-com)  
  	(if (setq ss (ssget "_X" (list '(0 . "INSERT")'(66 . 1)'(2 . "BOM")(cons 410 (getvar 'CTAB)))))
  		(progn
			(vla-getboundingbox
			  (vlax-ename->vla-object (setq e (ssname ss 0)))
			  'mn
			  'mx
			)
			(sssetfirst nil (ssadd e))
  			(c:burst)
	  		(if (sssetfirst
			      nil
			      (ssget "_W"
				     (vlax-safearray->list mn)
				     (vlax-safearray->list mx)
				     '((0 . "INSERT")
				       (66 . 1)
				       (2 . "LINDSAY")
				      )
			      )
			    )
	  			(c:burst))
		  	(command "_purge" "BLocks" "BOM,LINDSAY" "_N")
		))
  (princ)
  )

 If not

(Defun c:BBL (/ ss mn mn)
(vl-load-com)  
  	(if (setq ss (ssget "_X" (list '(0 . "INSERT")'(66 . 1)'(2 . "BOM")(cons 410 (getvar 'CTAB)))))
  		(progn
			(vla-getboundingbox
			  (vlax-ename->vla-object (setq e (ssname ss 0)))
			  'mn
			  'mx
			)
			(sssetfirst nil (ssadd e))
  			(c:burst)
	  		(if (setq ss 
			      (ssget "_W"
				     (vlax-safearray->list mn)
				     (vlax-safearray->list mx)
				     '((0 . "INSERT")
				       (66 . 1)
				       (2 . "LINDSAY")
				      )
			      )
			    )
	  			(command "_explode" ss))
		  	(command "_purge" "BLocks" "BOM,LINDSAY" "_N")
		))
  (princ)
  )

Hope this helps

[Anonymous]

Thank you for the quick response.  Yes the block named "Lindsay" does contain attributes. I tried both codes & neither seemed to do anything.

[Anonymous]

;;;----------------------------------------------------------------------------
;;;BURST HOTKEY
;;;----------------------------------------------------------------------------
(defun c:BU () 
(C:BURST)
)
(PRINC)
)

;;;----------------------------------------------------------------------------
;;;"BOM" PURGE
;;;----------------------------------------------------------------------------
(DEFUN C:BOMPURGE ()
(COMMAND "_purge" "BLocks" "BOM" "_N")
(princ)
)

;;;----------------------------------------------------------------------------
;;;"LINDSAY" PURGE
;;;----------------------------------------------------------------------------
(DEFUN C:LINDSAYPURGE ()
(COMMAND "_purge" "BLocks" "LINDSAY" "_N")
(princ)
)

;;;----------------------------------------------------------------------------
;;;BURST PURGE
;;;----------------------------------------------------------------------------
(DEFUN C:BX ()
(C:BU)
(C:BOMPURGE)
(C:LINDSAYPURGE)
(PRINC)
)

[Anonymous]

This is my code now, after re apploading I get BU, BOMPURGE & LINDSAYPURGE, to work seperatly & in the order, but my system still does not recognize the BX command

[pbejse · Accepted solution]

Reasons the code might not work or "neither seemed to do anything"

* (setq ss (ssget "_X" (list '(0 . "INSERT")'(66 . 1)
 '(2 . "BOM")<-----Block "BOM" Not found, could be "anonymously named block" <"*U4">, in this case we may need to use '(2 . "`*U*,BOM") and
 check each block effectivename

* Block explodable property is 0        

* pickfirst is 0
 (sssetfirst nil (ssadd e))<---  wont work at all

* (ssget "_W" <----- selection area must be visible on screen so (command "_zoom" "Object"...) would be invoke
  (vlax-safearray->list mn)
  (vlax-safearray->list mx)
  '((0 . "INSERT")
    (66 . 1)
    (2 . "LINDSAY")
   )
  )

---

@Anonymous wrote:

This is my code now, after re apploading I get BU, BOMPURGE & LINDSAYPURGE, to work seperatly & in the order, but my system still does not recognize the BX command

---

As for your code

(defun c:BU ()
(C:BURST)
(COMMAND "_purge" "BLocks" "BOM" "_N")
(COMMAND "_purge" "BLocks" "LINDSAY" "_N") 
(PRINC)
)       

[Anonymous]

I am not sure why but when I type the code to match the corrections you made to mine it does not work, but if i copy & paste & changed the BU to BZ it works.  Thank you for your assistance.