Object selection filter not finding block

[plackowski]

I've attached two drawings, each containing almost identical blocks named REVBLK. In one case, the test function below finds the block. In the other case, it does not. Why?

 

Some context - I modified our REVBLK a few weeks ago, condensing the attributes so the revision block will fit in a smaller space. My lisp routine to update the title block can no longer locate the revised REVBLK.

(defun _TestFunction (  /  )

	(setq rbname "REVBLK")
	(setq ss (ssget "_X" (list (cons 2 rbname)))) 
	(if ss
		(princ "testfunction found revblk")
		(princ "no revblks found")
	)
)

 

blockfound.dwg noblockfound.dwg

[Tharwat]

Hi,

You block must be dynamic and that's why ssget function can't select it  / them.

So you need to iterate though the selection set and check if the name of the block is your target one and the following should allow you to select them.

 (cons 2 (strcat "`*U*," rbname))

 

[plackowski]

Awesome thank you!

 

Unfortunately, I did not intend to make the block dynamic, and I'm not sure what I did that caused it. It also looks like there are no easy ways to convert it back without recreating it from the original block again...

 

Edit: That was much easier than I thought. I had added a Basepoint Parameter unnecessarily. Deleting it converted it back. 

Edited July 31, 2020 by plackowski

[Tharwat]

If so, then just dive into the block editor and delete any dynamic parameter then save and close the editor and that should solve it back to its original normal structure.