把手改過的標註文字恢復成測量值

純文字，沒有任何隱藏內容。複製後存成名為 cxdimreset.lsp 的檔案，或直接下載。

;;; ============================================================================
;;; CXDIMRESET - Reset typed-over dimension text to the measured value
;;; Version 1.0.0
;;; CADXChange LISP tools - https://cadxchange.net/resources/lisp/cxdimreset
;;; Tested in: AutoCAD (full version). Other programs that run AutoLISP may work but are not tested.
;;; Copyright (c) CADXChange. Free for personal and commercial use; do not resell or
;;; republish it as a collection. Terms: https://cadxchange.net/legal/lisp-terms
;;; ============================================================================

;; Put the measured value back on the dimensions in NAMES whose text was typed over. Returns how many changed.
(defun cx:dimreset-run (names / n ed txt)
  (setq n 0)
  (foreach e names
    (setq ed  (entget e)
          txt (cdr (assoc 1 ed)))
    (if (and txt (/= txt "") (/= txt "<>"))
      (progn (entmod (subst (cons 1 "<>") (assoc 1 ed) ed)) (entupd e) (setq n (1+ n)))))
  n)

(defun c:CXDIMRESET ( / *error* cx:sv ss)
  (setq *error* cx:err)
  (if (setq ss (cx:pick "\nSelect dimensions: " '((0 . "DIMENSION"))))
    (progn
      (cx:start '(("CMDECHO" . 0)))
      (princ (strcat "\n" (itoa (cx:dimreset-run (cx:ss->list ss))) " dimension(s) reset to their measured value."))
      (cx:end)))
  (princ))


;;; ---- Shared helpers (used by the command above; identical in every CADXChange tool) ----

;; Close the undo step and put the system variables back.
(defun cx:end ()
  (foreach v cx:sv (setvar (car v) (cdr v)))
  (command "_.UNDO" "_End")
  (setq cx:sv nil)
  (princ))

;; Error handler: restores everything, stays quiet on Esc.
(defun cx:err (msg)
  (if (> (getvar "CMDACTIVE") 0) (command))
  (cx:end)
  (if (and msg (not (wcmatch (strcase msg) "*BREAK*,*CANCEL*,*EXIT*")))
    (princ (strcat "\nError: " msg)))
  (princ))

;; Use the objects already selected, or ask the user to select; FILTER is an ssget filter list or nil.
(defun cx:pick (msg filter / ss)
  (setq ss (if filter (ssget "_I" filter) (ssget "_I")))
  (if (null ss)
    (progn
      (princ msg)
      (setq ss (if filter (ssget filter) (ssget)))))
  ss)

;; Save the system variables in VARS ((name . value) ...), set them, and open one undo step.
;; The caller declares cx:sv as a local so the saved values live exactly as long as the command.
(defun cx:start (vars)
  (setq cx:sv (mapcar (function (lambda (v) (cons (car v) (getvar (car v))))) vars))
  (command "_.UNDO" "_Begin")
  (foreach v vars (setvar (car v) (cdr v)))
  (princ))

;; Selection set to a list of entity names.
(defun cx:ss->list (ss / i out)
  (setq i 0)
  (if ss
    (repeat (sslength ss)
      (setq out (cons (ssname ss i) out)
            i   (1+ i))))
  (reverse out))

(princ "\nCXDIMRESET loaded. Type CXDIMRESET to start.")
(princ)

更多指令：清理

• CXBYLAYER把顏色、線型和線寬恢復為 ByLayer
• CXZEROLEN找出並刪除零長度的直線和多段線
• CXEMPTYTXT找出並刪除空文字
• CXFONTCHK列出字型檔案缺失的文字樣式
• CXFONTSUB在所有文字樣式裡把一個字型檔案換成另一個
• CXPURGE反覆清理圖形，直到沒有可清的內容
• CXDELTYPE刪除你點選型別的所有物件
• CXDUPDEL刪除完全重複的物件
• CXOBJCOUNT按型別統計物件數量