Die Layer der gewählten Objekte ausschalten

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;;; ============================================================================
;;; CXLAYOFF - Switch off the layers of the objects you pick
;;; Version 1.0.0
;;; CADXChange LISP tools - https://cadxchange.net/resources/lisp/cxlayoff
;;; 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 off the layers in LAYERS except the current layer. Returns how many were switched off.
(defun cx:layoff-run (layers / n ed)
  (setq n 0)
  (foreach name layers
    (if (and (setq ed (tblsearch "LAYER" name))
             (> (cdr (assoc 62 ed)) 0)
             (/= (strcase name) (strcase (getvar "CLAYER"))))
      (progn (cx:lay-set name 62 (- (cdr (assoc 62 ed)))) (setq n (1+ n)))))
  n)

(defun c:CXLAYOFF ( / *error* cx:sv ss)
  (setq *error* cx:err)
  (if (setq ss (cx:pick "\nSelect objects on the layers to switch off: " nil))
    (progn
      (cx:start '(("CMDECHO" . 0)))
      (princ (strcat "\n" (itoa (cx:layoff-run (cx:layers-of (cx:ss->list ss)))) " layer(s) switched off."))
      (cx:end)))
  (princ))


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

;; 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))

;; 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))

;; The distinct layer names used by the entities in NAMES, in order of first use.
(defun cx:layers-of (names / out l)
  (foreach e names
    (setq l (cdr (assoc 8 (entget e))))
    (if (not (member l out)) (setq out (cons l out))))
  (reverse out))

;; 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 "\nCXLAYOFF loaded. Type CXLAYOFF to start.")
(princ)

Weitere Befehle: Layer

• CXLAYISODie Layer der gewählten Objekte isolieren
• CXLAYRESDie von CXLAYISO ausgeschalteten Layer zurückholen
• CXLAYCOLORDie Farbe der Layer gewählter Objekte ändern
• CXLAYRENLayer per Suchen und Ersetzen umbenennen
• CXLAYSETObjekte auf den Layer eines anderen Objekts verschieben
• CXLAYMRGLayer zusammenführen und die übrigen löschen
• CXLAYCOUNTDie Objekte je Layer zählen
• CXLAYSELAlles auf den Layern der gewählten Objekte auswählen
• CXLAYSTDEinen Layersatz aus einer CSV-Liste anlegen