Zoom extents

[Aegis1]

Hey everybody, I consider myslef an intermediate Cad user, I am using AutoCad 2009. When i try to zoom all in the drawing it zooms everything, but there is something still in the drawing that I can't find. I have searched and haven't found anything that works. When I zoom out of the drawing and window everything there are no other entities in the drawing. I have opened every block and made sure that there were no random entities in them. I deleted all unused blocks and I deleted a couple blocks that had nothing in them. I have purged the drawing, every layer is on, unthawed, unlocked, and still nothing. I have been searching the web for over an hour with no luck. I am unsure what else to try, this isn't a really a problem, it is more of a nuisance than anything else. I am out of ideas, anybody have any?

Thanks,
Brad

[lpseifert]

Try Erase > All > Remove > {window the elements you want to keep}
and/or try this

; Delete Null Objects
;; DelNul.lsp   
;; Deletes nul lines of Text, Mtext & Blocks.
;; Modified by JL Thomas 12/02/97 

(Defun C:DelNul ( / TXT BLK NB NAMES)
  (if(setq TXT (ssget "X" '((-4 . "<and")(-4 . "<or")
                           (0 . "MTEXT")(0 . "TEXT")
                           (-4 . "or>")(-4 . "<or")
                           (1 . "")(1 . " ")(1 . "  ")(1 . "   ")
                           (1 . "{}")(1 . "{ }")(1 . "{  }")(1 . "{   }")
                           (1 . "{}\P")(1 . "{ }\P")(1 . "{  }\P")(1 . "{   }\P")
                           (-4 . "or>")(-4 . "and>"))))
  (progn
    (command"_erase"TXT"")
    (princ(strcat"\n  "(itoa(sslength TXT))" nul text strings deleted. "))
   )
  (princ"\n  No nul text strings found. "))

  (setq BLK(tblnext"BLOCK"T)NAMES nil)
  (while BLK
    (if(=(cdr(assoc 0(entget(cdr(assoc -2 BLK)))))"ENDBLK")
    (progn
      (if(setq NB(ssget "X" (list(assoc 2 BLK))))
      (command"_erase"NB"")
       )
    (setq NAMES(cons(cdr(assoc 2 BLK))NAMES))
     )
   )
  (setq BLK(tblnext"BLOCK"))
  )
  (if NAMES
    (progn(textscr)
    (princ"\n  Nul blocks found and need purging: ")
    (foreach X NAMES(princ"\n    ")(princ X))
   )
  (princ"\n  No nul blocks found. ")
  )
(princ)
)
(c:DelNul)

[dbroada]

I select all (ctrl-A), remove all I can see and ERASE what's left.

You sometimes get NUL text or lines of 0 length which aren't always easy to erase.

[Aegis1]

Thanks, the erase > all > remove command worked. Hopefully this will work for the rest of the drawings that have this. Does anyone know why I couldn't highlight or select any of the entities that I deleted?

Thanks,
Brad

[lpseifert]

It might have been a piece of null text (no characters). If you turn on Qtext you can see/select them.