Delete specific block

I am looking for a way to remove a specific block from a layout tab on a drawing and put another block in it's place. They will all have the same insertion point. I have been trying to look for ways to select the block. Do i use ssget or what??

Does BLOCKREPLACE do what you want or are you looking for something else?

Glen

Thanks Glen,

I never knew about BLOCKREPLACE but i'm looking to do it within a lisp. How do I filter out the block. The name is fixed and the position is fixed on each layout. The block forms part of the title on our sheet.

WHat about this?

 
(defun c:ins2ins (/ lb bn ss i en ed)
;;;GET NEW BLOCK INFO
 (setq lb (getvar "INSNAME"))
 (while (not bn)
        (setq bn (getstring (strcat "\nNew blocks name (has to be in drawing or in support file path) <" lb ">:   ")))
        (cond ((= bn "")
               (setq bn lb))
              ((and (snvalid bn)
                    (tblsearch "BLOCK" bn)))
              ((and (snvalid bn)
                    (findfile (strcat bn ".DWG")))
               (command "_.INSERT" bn)
               (command))
              (T (setq bn nil lb ""))))
 (while (not ss)
        (princ "\nSelect block(s) to exchange...")
        (setq ss (ssget (list (cons 0 "INSERT")
                              (if (getvar "CTAB")
                                  (cons 410 (getvar "CTAB"))
                                  (cons 67 (- 1 (getvar "TILEMODE"))))))))
 (setq i (sslength ss))
 (while (not (minusp (setq i (1- i))))
        (setq en (ssname ss i)
              ed (entget en))
        (entmod (subst (cons 2 bn) (assoc 2 ed) ed)))
 (command "attsync" "S" "L" "y")
 (prin1))

Credit to the original author, it is not me .

I only added the attsync line...

Maybe there is a way to keep the attribute values intact, if for a title block it is mostly required.

MarcoW, it would be great to just update the attribute of the block but the problem I have is that it is for project names and they can range in length from one liners to being spread over 3 lines. Can this be done by updating the attirbute?

At the moment I use a dynamic block which is cumbersome.

Credit to the original author, it is not me .

Looking at the style, I'd say it was one of David's

LeeMac, can i use something similar to the "\\X" that you gave me for the dimreact to make the attirubute of a block update with more than one line?

Looking at the style, I'd say it was one of David's

Yeah, I'd say that was one of mine. -David

LeeMac, can i use something similar to the "\\X" that you gave me for the dimreact to make the attirubute of a block update with more than one line?

Don't think so - you would have to use Multiline Attributes.