UCS WORLD without the UCS command call?

[chulse]

Ok, I found this little gem (a reactor to do various things on file close) from ASMI. What I'd like is to have it also automatically set the UCS to world on file close.
If I understand correctly that you cannot use "command" in a reactor (read here that I am completely new to reactors...and almost completely new to lisp...), is there another method for changing the UCS back to world that would work?

Thanks

[Lee Mac]

I'm not sure of any other way to do it other than by creating a temporary UCS:

(defun UCSWorld (/ doc tmp)
  (setq doc (vla-get-ActiveDocument
              (vlax-get-acad-object)))
  
  (vla-put-ActiveUCS doc
    (vla-add (vla-get-usercoordinatesystems doc)
      (vlax-3D-point '(0. 0. 0.))
        (vlax-3D-point '(1. 0. 0.))
          (vlax-3D-point '(0. 1. 0.)) "TempWord_UCS")))

[chulse]

Thanks Lee!

[Lee Mac]

Thanks Lee!

You're welcome - its not perfect, and a bit of a workaround - I would welcome anyone to submit a better way.

[alanjt]

You're welcome - its not perfect, and a bit of a workaround - I would welcome anyone to submit a better way.

Thanks how I would do it.
I used the same coding to do the same thing a while back. I just called it "World" and left it there.

[Lee Mac]

Thanks how I would do it.
I used the same coding to do the same thing a while back. I just called it "World" and left it there.

I think I picked it up from somewhere in theSwamp - I wish there was a better way to do it.

[alanjt]

I think I picked it up from somewhere in theSwamp

Same here.