恢復 CXLAYISO 關掉的圖層

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

;;; ============================================================================
;;; CXLAYRES - Bring back the layers CXLAYISO switched off
;;; Version 1.0.0
;;; CADXChange LISP tools - https://cadxchange.net/resources/lisp/cxlayres
;;; 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
;;; ============================================================================

;; Switch on the layers CXLAYISO switched off. With ALL true, every layer that is off comes back instead.
;; Returns how many layers were switched on.
(defun cx:layres-run (all / n ed names)
  (setq n 0 names (if all (cx:layers) *cx-layiso*))
  (foreach name names
    (if (and (setq ed (tblsearch "LAYER" name)) (< (cdr (assoc 62 ed)) 0))
      (progn
        (cx:lay-set name 62 (- (cdr (assoc 62 ed))))
        (setq n (1+ n)))))
  (setq *cx-layiso* nil)
  n)

(defun c:CXLAYRES ( / *error* cx:sv all)
  (setq *error* cx:err)
  (setq all (if *cx-layiso* nil (= (cx:ask-kw "Nothing was isolated. Switch on every layer that is off" "Yes No" "Yes") "Yes")))
  (if (or *cx-layiso* all)
    (progn
      (cx:start '(("CMDECHO" . 0)))
      (princ (strcat "\n" (itoa (cx:layres-run all)) " layer(s) switched on."))
      (cx:end)))
  (princ))


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

(defun cx:dxf (code ed)
  (cdr (assoc code ed)))

;; Names of all layers.
(defun cx:layers (/ r out)
  (setq r (tblnext "LAYER" T))
  (while r
    (setq out (cons (cx:dxf 2 r) out) r (tblnext "LAYER")))
  (reverse out))

;; Set the DXF group CODE of layer NAME to VAL; returns T, or nil when there is no such layer.
(defun cx:lay-set (name code val / en ed)
  (if (setq en (tblobjname "LAYER" name))
    (progn
      (setq ed (entget en))
      (entmod (if (assoc code ed)
                (subst (cons code val) (assoc code ed) ed)
                (append ed (list (cons code val)))))
      T)))

;; 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))

;; Replace every OLD in STR by NEW (case sensitive).
(defun cx:replace (str old new / n out pos)
  (setq n (strlen old) out "" pos 1)
  (if (= n 0)
    str
    (progn
      (while (<= pos (1+ (- (strlen str) n)))
        (if (= (substr str pos n) old)
          (setq out (strcat out new) pos (+ pos n))
          (setq out (strcat out (substr str pos 1)) pos (1+ pos))))
      (strcat out (substr str pos)))))

;; Ask for one of the keywords in BITS ("Yes No"), default DEF; returns the keyword.
(defun cx:ask-kw (msg bits def / v)
  (initget 0 bits)
  (setq v (getkword (strcat "\n" msg " [" (cx:replace bits " " "/") "] <" def ">: ")))
  (if v v def))

;; 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))

(princ "\nCXLAYRES loaded. Type CXLAYRES to start.")
(princ)

更多指令：圖層

• CXLAYISO隔離你點選物件所在的圖層
• CXLAYOFF關閉你點選物件所在的圖層
• CXLAYCOLOR更改你點選物件所在圖層的顏色
• CXLAYREN尋找取代批次重新命名圖層
• CXLAYSET把物件移到另一個物件所在的圖層
• CXLAYMRG合併圖層並刪除多餘的圖層
• CXLAYCOUNT統計每個圖層上的物件數量
• CXLAYSEL選擇你點選物件所在圖層上的全部物件
• CXLAYSTD按 CSV 清單建立一整套圖層