delete block if not....

Using lisp, how can I delete a block if that block name doesn't exist in a particular directory ??

Thanks

 

thanks

 

Generate a list of block names from within the
drawing file and compare that to a list of DWG
files from the folder removing all that match.

Once this list has be created you can use
vla-delete to remove the instances of the
block insertions.

Should be plenty of examples abound to get
you headed in the right direction.

 

Anyone have an example of how I can if a block name exists in a directory, and if not, erase it.

I have the code below to identify and cycle thru all blocks with attributes, then do certain tasks. I just need to compare the blocks with files in a directory.

(foreach n lt1 (setq ss (ssget "X" (list (cons 0 "INSERT")(cons 66 1))))

 

Excuse me but didn't we just go through all that al while ago?

http://discussion.autodesk.com/thread.jspa?threadID=332559


Bill

 

My bad. Its Monday. LOL