The Express Tool called “Replace Block” or command line = BLOCKREPLACE <enter> has been mentioned [HERE] and found on the ribbon (as seen below)
This tool is helpful for replacing blocks globally (through out the entire drawing) but what if you need to simply replace a few selected blocks?…
Alan T. has made an awesome LISP routine called BRE.lsp to accomplish just that.
- BRE <enter>
- Select the block that you want to replace the other selected blocks.
- Select the blocks that you want replaced
- <enter> when finished
(defun c:BRE (/ *error* blk f ss temp) ;; Replace multiple instances of selected blocks (can be different) with selected block ;; Size and Rotation will be taken from original block and original will be deleted ;; Required subroutines: AT:GetSel ;; Alan J. Thompson, 02.09.10 ;; Found at: http://www.cadtutor.net/forum/showthread.php?48458-Replace-Selected-Block-Or-Blocks-With-Another-Block (vl-load-com) (defun *error* (msg) (and f *AcadDoc* (vla-endundomark *AcadDoc*)) (if (and msg (not (wcmatch (strcase msg) "*BREAK*,*CANCEL*,*QUIT*,"))) (princ (strcat "\nError: " msg)) ) ) (if (and (AT:GetSel entsel "\nSelect replacement block: " (lambda (x / e) (if (and (eq "INSERT" (cdr (assoc 0 (setq e (entget (car x)))))) (/= 4 (logand (cdr (assoc 70 (tblsearch "BLOCK" (cdr (assoc 2 e))))) 4)) (/= 4 (logand (cdr (assoc 70 (entget (tblobjname "LAYER" (cdr (assoc 8 e)))))) 4)) ) (setq blk (vlax-ename->vla-object (car x))) ) ) ) (princ "\nSelect blocks to be repalced: ") (setq ss (ssget "_:L" '((0 . "INSERT")))) ) (progn (setq f (not (vla-startundomark (cond (*AcadDoc*) ((setq *AcadDoc* (vla-get-activedocument (vlax-get-acad-object)))) ) ) ) ) (vlax-for x (setq ss (vla-get-activeselectionset *AcadDoc*)) (setq temp (vla-copy blk)) (mapcar (function (lambda (p) (vl-catch-all-apply (function vlax-put-property) (list temp p (vlax-get-property x p)) ) ) ) '(Insertionpoint Rotation XEffectiveScaleFactor YEffectiveScaleFactor ZEffectiveScaleFactor ) ) (vla-delete x) ) (vla-delete ss) (*error* nil) ) ) (princ) ) (defun AT:GetSel (meth msg fnc / ent good) ;; meth - selection method (entsel, nentsel, nentselp) ;; msg - message to display (nil for default) ;; fnc - optional function to apply to selected object ;; Ex: (AT:GetSel entsel "\nSelect arc: " (lambda (x) (eq (cdr (assoc 0 (entget (car x)))) "ARC"))) ;; Alan J. Thompson, 05.25.10 (setvar 'errno 0) (while (not good) (setq ent (meth (cond (msg) ("\nSelect object: ") ) ) ) (cond ((vl-consp ent) (setq good (cond ((or (not fnc) (fnc ent)) ent) ((prompt "\nInvalid object!")) ) ) ) ((eq (type ent) 'STR) (setq good ent)) ((setq good (eq 52 (getvar 'errno))) nil) ((eq 7 (getvar 'errno)) (setq good (prompt "\nMissed, try again."))) ) ) )