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@Danielm103 How can AI be better than human revision? Here is AI - I've added "red" color... (defun c:ortho_pline ( / orthogonalize-points edata ent newpts p pl pts x) (defun orthogonalize-points (pts / dx-in dx-out dy-in dy-out i in-is-h new-x new-y out-is-h p0 p1 p2 result) ;; If fewer than 3 points, nothing to do (if (< (length pts) 3) pts (progn (setq result pts) ;; Iterate interior vertices (setq i 1) (while (< i (- (length pts) 1)) (setq p0 (nth (- i 1) result)) (setq p1 (nth i result)) (setq p2 (nth (+ i 1) result)) ;; Incoming vector p0 -> p1 (setq dx-in (- (car p1) (car p0))) (setq dy-in (- (cadr p1) (cadr p0))) ;; Outgoing vector p1 -> p2 (setq dx-out (- (car p2) (car p1))) (setq dy-out (- (cadr p2) (cadr p1))) ;; Dominant direction tests (setq in-is-h (>= (abs dx-in) (abs dy-in))) (setq out-is-h (>= (abs dx-out) (abs dy-out))) ;; Case 1: Proper corner (one horizontal, one vertical) (cond ((/= in-is-h out-is-h) (if in-is-h (progn ;; incoming horizontal, outgoing vertical (setq new-x (car p2)) (setq new-y (cadr p0)) ) (progn ;; incoming vertical, outgoing horizontal (setq new-x (car p0)) (setq new-y (cadr p2)) ) ) ) ;; Case 2: both horizontal (in-is-h (setq new-x (car p1)) (setq new-y (cadr p0)) ) ;; Case 3: both vertical (t (setq new-x (car p0)) (setq new-y (cadr p1)) ) ) ;; Replace interior point (setq result (subst (list new-x new-y) p1 result)) (setq i (1+ i)) ) result ) ) ) (setq ent (car (entsel "\nSelect a polyline: "))) (if (not ent) (progn (princ "\nNothing selected.") (exit) ) ) (setq edata (entget ent)) ;; Ensure LWPOLYLINE (if (/= (cdr (assoc 0 edata)) "LWPOLYLINE") (progn (princ "\nEntity is not a lightweight polyline.") (exit) ) ) ;; Extract vertices (group code 10) (setq pts (mapcar 'cdr (vl-remove-if-not '(lambda (x) (= (car x) 10)) edata))) ;; Orthogonalize (setq newpts (orthogonalize-points pts)) ;; Create new polyline (setq pl (entmakex (append (list '(0 . "LWPOLYLINE") '(100 . "AcDbEntity") '(100 . "AcDbPolyline") (cons 90 (length newpts)) '(70 . 0) ) (mapcar '(lambda (p) (cons 10 p)) newpts) (list '(62 . 1)) ) ) ) (if pl (princ "\nOrthogonal polyline created.") (princ "\nFailed to create polyline.") ) (princ) ) And here is my version - I used "green" color... (defun c:lw_orth ( / un f lw lwx pl cl ) (defun un ( l / a ll ) (while (setq a (car l)) (if (vl-some (function (lambda ( x ) (equal x a 1e-10))) l) (setq ll (cons a ll) l (vl-remove-if (function (lambda ( x ) (equal x a 1e-10))) (cdr l))) (setq ll (cons a ll) l (cdr l)) ) ) (reverse ll) ) (defun f ( l / i p1 p2 r ) (if (> (length l) 2) (progn (setq i -1) (while (< (setq i (1+ i)) (1- (length l))) (if (not p1) (setq p1 (nth i l) p2 (nth (1+ i) l)) (setq p1 p2 p2 (nth (1+ i) l)) ) (if (= i 0) (setq r (cons (car l) r)) ) (if (< (abs (- (car p2) (car p1))) (abs (- (cadr p2) (cadr p1)))) (setq r (cons (setq p2 (list (car p1) (cadr p2))) r)) (setq r (cons (setq p2 (list (car p2) (cadr p1))) r)) ) (if (= i (- (length l) 2)) (setq r (cons (last l) r)) ) ) (setq r (reverse r)) (un (apply (function append) (mapcar (function (lambda ( p1 p2 / pp ) (if (setq pp (vl-some (function (lambda ( x ) (if (and (equal (distance p1 p2) (+ (distance p1 x) (distance x p2)) 1e-10) (not (equal x p1 1e-10)) (not (equal x p2 1e-10))) x))) l)) (list p1 pp) (list p1)))) r (append (cdr r) (list (car r)))))) ) ) ) (if (and (setq lw (car (entsel "\nPick polygonal lwpolyline to make its clone orthogonalized..."))) (= (cdr (assoc 0 (setq lwx (entget lw)))) "LWPOLYLINE") (vl-every (function (lambda ( x ) (= (cdr x) 0.0))) (vl-remove-if (function (lambda ( x ) (/= (car x) 42))) lwx)) ) (progn (if (or (= (cdr (assoc 70 lwx)) 1) (= (cdr (assoc 70 lwx)) 129)) (setq cl t) ) (setq pl (mapcar (function (lambda ( p ) (trans p lw 1))) (mapcar (function cdr) (vl-remove-if (function (lambda ( x ) (/= (car x) 10))) lwx)))) (if cl (setq pl (append pl (list (car pl)))) ) (if (> (length pl) 2) (entmake (append (list (cons 0 "LWPOLYLINE") (cons 100 "AcDbEntity") (cons 100 "AcDbPolyline") (cons 90 (length (setq pl (f pl)))) (cons 70 (if cl (1+ (* 128 (getvar (quote plinegen)))) (* 128 (getvar (quote plinegen))))) (cons 38 0.0) ) (mapcar (function (lambda ( x ) (cons 10 x))) (mapcar (function (lambda ( p ) (trans p 1 lw))) pl)) (list (cons 62 3) (list 210 0.0 0.0 1.0) ) ) ) (prompt "\nPicked lwpolyline with insufficient number of vertices...") ) ) (prompt "\nMissed, or picked entity not polygonal lwpolyline... Better luck next time...") ) (princ) ) In attached *.DWG you can see that AI version makes mistake with finalizing segment - it isn't always orthogonal... Anyway interesting and fun for coding... Regards, M.R. orthogonalize_lwpolyline.dwg

Well I was born on Mars (and my wife on Venus) and because of my job I currently live in NL

A slightly blunter method I use is to line everything up to a grid spacing (in my LISP I define the spacing rather than the drawing.... just in case) which usually works OK for most thing. A lot of what I do is line diagrams and the polylines are never too far out. - Get a list of points, use Lee Macs round to closest on each point, entmod the line using original and new points. I'd prefer entmod than making a new line just in case something goes wrong in between deleting the original and creating the new, retains all the original polyline info.

just look in autocad help for LUNITS & INSUNITS https://help.autodesk.com/view/ACD/2025/ENU/?guid=GUID-A58A87BB-482B-4042-A00A-EEF55A2B4FD8

I'v never taste the Durian .

You're welcome @karfung . I'm from Serbia. I have made changes to the code, please try it now (I hope I understand your requirements correctly). If it's not, try to change in sub-function "fix_value" the value from "500" to any other to get desired result. The fix function round up the real number into the nearest smallest integer number (for e.g. if you have a 3.70 m, and when you add 0.50 m, you will get 4.20 m, but using fix function which is an AutoLISP Core Function, you will get 4.0 m, also if you have 4.70 m, you will also get 4.0 m). Just an explanation to understand the logic. ; ************************************************************************************************** ; Functions : PLMTXT ; Sub-functions : ang_check_text, fix_value ; Description : Add predifined text with the length segment between two vertices on polyline ; Author : Saxlle ; Date : January 18, 2026 ; ************************************************************************************************** (prompt "\nTo run a LISP type: PLMTXT") (princ) (defun c:PLMTXT ( / old_osmode cur_layer old_nomutt height def_text ss len i dxf_70 plist dataList n k pt1 pt2 midPt ang dist npt pt lenSegment) (setq old_osmode (getvar 'osmode) cur_layer (getvar 'clayer) old_nomutt (getvar 'nomutt) height (getreal "\nEnter the text height <2.50>: ") ;; text height def_text "BD/1:200/" ;; default text ) (if (= height nil) (setq height 2.50) ;; defaul text height, it can be changed ) (setvar 'osmode 0) (if (not (tblsearch "LAYER" "SNA-TXT")) ;; check does layer 'SNA-TXT' exist or not (command-s "-layer" "m" "SNA-TXT" "") ;; make the SNA-TXT layer and set to be current (command-s "-layer" "s" "SNA-TXT" "") ;; set the SNA-TXT layer to be the current ) (setvar 'nomutt 1) (princ "\nSelect POLYLINES:") (setq ss (ssget (list (cons 0 "LWPOLYLINE"))) len (sslength ss) plist (list) i 0 ) (setvar 'nomutt old_nomutt) (while (< i len) (setq dxf_70 (cdr (assoc 70 (entget (ssname ss i))))) (cond ;; the first cond ((= dxf_70 0) ;; LWPOLYLINE is OPEN (setq plist (mapcar 'cdr (vl-remove-if-not '(lambda (x) (= (car x) 10)) (entget (ssname ss i)))) dataList (list) n 0 k 1 ) (repeat (setq l (length plist)) (if (< k l) (setq pt1 (nth n plist) pt2 (nth k plist) midPt (mapcar '* (mapcar '+ pt1 pt2) (list 0.5 0.5)) ang (ang_check_text (angle pt1 pt2)) dist (/ (fix_value (distance pt1 pt2)) 1000) ;; 1000 mm equal to 1.0 m npt (polar midPt (+ (angle pt1 pt2) (/ pi 2)) height) dataList (append (list (list npt ang dist)) dataList) n (1+ n) k (1+ k) ) ) ) (setq dataList (reverse dataList) n 0 ) (repeat (length dataList) (setq pt (car (nth n dataList)) ang (cadr (nth n dataList)) lenSegment (caddr (nth n dataList)) n (1+ n) ) (entmake (list (cons 0 "MTEXT") (cons 100 "AcDbEntity") (cons 100 "AcDbMText") (cons 10 pt) (cons 11 pt) (cons 40 height) (cons 50 ang) (cons 71 5) (cons 1 (strcat def_text (rtos lenSegment 2 2) " m")))) ) ) ;; end first cond ;; the second cond ((= dxf_70 1) ;; LWPOLYLINE is CLOSED (setq plist (mapcar 'cdr (vl-remove-if-not '(lambda (x) (= (car x) 10)) (entget (ssname ss i)))) dataList (list) n 0 k 1 ) (repeat (setq l (length plist)) (if (< k l) (setq pt1 (nth n plist) pt2 (nth k plist) midPt (mapcar '* (mapcar '+ pt1 pt2) (list 0.5 0.5)) ang (ang_check_text (angle pt1 pt2)) dist (/ (fix_value (distance pt1 pt2)) 1000) ;; 1000 mm equal to 1.0 m npt (polar midPt (+ (angle pt1 pt2) (/ pi 2)) height) dataList (append (list (list npt ang dist)) dataList) n (1+ n) k (1+ k) ) (setq n 0 k (1- k) pt1 (nth k plist) pt2 (nth n plist) midPt (mapcar '* (mapcar '+ pt1 pt2) (list 0.5 0.5)) ang (ang_check_text (angle pt1 pt2)) dist (/ (fix_value (distance pt1 pt2)) 1000) ;; 1000 mm equal to 1.0 m npt (polar midPt (+ (angle pt1 pt2) (/ pi 2)) height) dataList (append (list (list npt ang dist)) dataList) ) ) ) (setq dataList (reverse dataList) n 0 ) (repeat (length dataList) (setq pt (car (nth n dataList)) ang (cadr (nth n dataList)) lenSegment (caddr (nth n dataList)) n (1+ n) ) (entmake (list (cons 0 "MTEXT") (cons 100 "AcDbEntity") (cons 100 "AcDbMText") (cons 10 pt) (cons 11 pt) (cons 40 height) (cons 50 ang) (cons 71 5) (cons 1 (strcat def_text (rtos lenSegment 2 2) " m")))) ) ) ;; end second cond ) ;; end cond (setq i (1+ i)) ) (setvar 'osmode old_osmode) ;; restore osmode (setvar 'clayer cur_layer) ;; restore old layer (prompt "\nThe text was inserted!") (princ) ) ;; Sub-function to get a proper text angle (defun ang_check_text (ang) (cond ((<= ang 1.57) (setq ang ang) ) ((and (>= ang 1.57) (<= ang 3.14)) (setq ang (+ ang pi)) ) ((and (>= ang 3.14) (<= ang 4.71)) (setq ang (- ang pi)) ) ((>= ang 4.71) (setq ang ang) ) ) ) ;; Sub-function to round up number to the whole integer (defun fix_value (val) (if (not (minusp val)) (setq val (fix (+ val 500))) ;; 500 mm equal to 0.50 m (setq val (fix (- val 500))) ;; 500 mm equal to 0.50 m ) ) Best regards.

Please contact me when you reach here. I buy you durian.

Hi @karfung, Try this and see if it fits to your needs: ; ********************************************************************************************** ; Functions : PLMTXT ; Description : Add predefined text with length segment between two vertices on polyline ; Author : Saxlle ; Date : January 18, 2026 ; ********************************************************************************************** (prompt "\nTo run a LISP type: PLMTXT") (princ) (defun c:PLMTXT ( / old_osmode cur_layer old_nomutt height def_text ss len i dxf_70 plist dataList n k pt1 pt2 midPt ang dist npt pt lenSegment) (setq old_osmode (getvar 'osmode) cur_layer (getvar 'clayer) old_nomutt (getvar 'nomutt) height (getreal "\nEnter the text height <2.50>: ") ;; text height def_text "BD/1:200/" ;; default text ) (if (= height nil) (setq height 2.50) ;; defaul text height, it can be changed ) (setvar 'osmode 0) (if (not (tblsearch "LAYER" "SNA-TXT")) ;; check does layer 'SNA-TXT' exist or not (command-s "-layer" "m" "SNA-TXT" "") ;; make the SNA-TXT layer and set to be the current (command-s "-layer" "s" "SNA-TXT" "") ;; set the SNA-TXT layer to be the current ) (setvar 'nomutt 1) (princ "\nSelect POLYLINES:") (setq ss (ssget (list (cons 0 "LWPOLYLINE"))) len (sslength ss) plist (list) i 0 ) (setvar 'nomutt old_nomutt) (while (< i len) (setq dxf_70 (cdr (assoc 70 (entget (ssname ss i))))) (cond ;; the first cond ((= dxf_70 0) ;; LWPOLYLINE is OPEN (setq plist (mapcar 'cdr (vl-remove-if-not '(lambda (x) (= (car x) 10)) (entget (ssname ss i)))) dataList (list) n 0 k 1 ) (repeat (setq l (length plist)) (if (< k l) (setq pt1 (nth n plist) pt2 (nth k plist) midPt (mapcar '* (mapcar '+ pt1 pt2) (list 0.5 0.5)) ang (ang_check_text (angle pt1 pt2)) dist (distance pt1 pt2) npt (polar midPt (+ (angle pt1 pt2) (/ pi 2)) height) dataList (append (list (list npt ang dist)) dataList) n (1+ n) k (1+ k) ) ) ) (setq dataList (reverse dataList) n 0 ) (repeat (length dataList) (setq pt (car (nth n dataList)) ang (cadr (nth n dataList)) lenSegment (caddr (nth n dataList)) n (1+ n) ) (entmake (list (cons 0 "MTEXT") (cons 100 "AcDbEntity") (cons 100 "AcDbMText") (cons 10 pt) (cons 11 pt) (cons 40 height) (cons 50 ang) (cons 71 5) (cons 1 (strcat def_text (rtos lenSegment 2 2) " m")))) ) ) ;; end first cond ;; the second cond ((= dxf_70 1) ;; LWPOLYLINE is CLOSED (setq plist (mapcar 'cdr (vl-remove-if-not '(lambda (x) (= (car x) 10)) (entget (ssname ss i)))) dataList (list) n 0 k 1 ) (repeat (setq l (length plist)) (if (< k l) (setq pt1 (nth n plist) pt2 (nth k plist) midPt (mapcar '* (mapcar '+ pt1 pt2) (list 0.5 0.5)) ang (ang_check_text (angle pt1 pt2)) dist (distance pt1 pt2) npt (polar midPt (+ (angle pt1 pt2) (/ pi 2)) height) dataList (append (list (list npt ang dist)) dataList) n (1+ n) k (1+ k) ) (setq n 0 k (1- k) pt1 (nth k plist) pt2 (nth n plist) midPt (mapcar '* (mapcar '+ pt1 pt2) (list 0.5 0.5)) ang (ang_check_text (angle pt1 pt2)) dist (distance pt1 pt2) npt (polar midPt (+ (angle pt1 pt2) (/ pi 2)) height) dataList (append (list (list npt ang dist)) dataList) ) ) ) (setq dataList (reverse dataList) n 0 ) (repeat (length dataList) (setq pt (car (nth n dataList)) ang (cadr (nth n dataList)) lenSegment (caddr (nth n dataList)) n (1+ n) ) (entmake (list (cons 0 "MTEXT") (cons 100 "AcDbEntity") (cons 100 "AcDbMText") (cons 10 pt) (cons 11 pt) (cons 40 height) (cons 50 ang) (cons 71 5) (cons 1 (strcat def_text (rtos lenSegment 2 2) " m")))) ) ) ;; end second cond ) ;; end cond (setq i (1+ i)) ) (setvar 'osmode old_osmode) ;; restore osmode (setvar 'clayer cur_layer) ;; restore old layer (prompt "\nThe text was inserted!") (princ) ) ;; Sub-function to get a proper text angle (defun ang_check_text (ang) (cond ((<= ang 1.57) (setq ang ang) ) ((and (>= ang 1.57) (<= ang 3.14)) (setq ang (+ ang pi)) ) ((and (>= ang 3.14) (<= ang 4.71)) (setq ang (- ang pi)) ) ((>= ang 4.71) (setq ang ang) ) ) ) Also, see the short video example of how it works. PLMTXT.mp4 Best regards.

just feed this to the vanilla monster : (ScriptDwg fn (list "LUNITS" "2" "INSUNITS" "4" "LUPREC" "6" ".zoom" "extents")) this part is all pretty basic AutoCad

;;; https://www.cadtutor.net/forum/topic/98937-repair-lisp-to-create-superimpose-acad/ (defun c:new_desktop_file_copy ( / acad_dbx object_list zero_point db odbx_objects_list ss fn db actDocs doc) (vl-load-com) (setq acad_dbx (vla-getinterfaceobject (vlax-get-acad-object) (dbx_ver))) (defun make_color_21 ( / lays lay) (setq lays (vla-get-layers acad_dbx)) (vlax-map-collection (vla-get-blocks acad_dbx) '(lambda (b) (vlax-map-collection b '(lambda (o) (vla-put-color o 256) (if (/= 21 (vla-get-color (setq l (vla-item lays (vla-get-layer o))))) (vla-put-color l 21))))))) (prompt "\nPick objects to copy to a new file on the desktop...") (if (not (setq ss (ssget))) (princ "\nNothing was selected") (progn (setq object_list (ss->ol ss)) (setq zero_point (getpoint "\nPick zero point for the copied entities: ")) (setq db (vla-get-database (vla-get-activedocument (vlax-get-acad-object)))) (setq odbx_objects_list (vlax-invoke db 'copyobjects object_list (vla-get-modelspace acad_dbx))) (foreach copied_object odbx_objects_list (if (vlax-method-applicable-p copied_object 'move) (vla-move copied_object (vlax-3d-point zero_point) (vlax-3d-point 0 0 0)) (princ (strcat "\nUnable to move object name : " (vla-get-name copied_object))) ) ) (make_color_21) (if (eq (setq fn (getstring "\nEnter file name: ")) "") (princ (strcat "\nInvalid filename for new drawing : " (vl-princ-to-string fn))) (progn (setq fn (strcat (getenv "userprofile") "\\Desktop\\" fn ".dwg")) (vla-saveas acad_dbx fn) (vlax-release-object acad_dbx) (gc) (gc) (foreach obj object_list (vla-delete obj)) (command ".qsave") ;|lets go vanilla|;(ScriptDwg fn (list "LUNITS" "2" "LUPREC" "6" ".zoom" "extents")) ) ) ) ) (princ) ) (defun SS->OL (ss / i l) (setq i 0)(repeat (sslength ss)(setq l (cons (vlax-ename->vla-object (ssname ss i)) l) i (1+ i))) l) (defun dbx_ver ( / v) (strcat "objectdbx.axdbdocument" (if (< (setq v (atoi (getvar 'acadver))) 16) "" (strcat "." (itoa v))))) (defun ScriptDwg ( dwg-fn dwg-com / scr-fn scr-fp ) (if (= (getvar "SDI") 1) (setvar "SDI" 0)) (setq scr-fn (strcat (getvar 'MYDOCUMENTSPREFIX) "\\ScriptDwg.scr")) (cond ((or (not (= (type dwg-fn) 'STR)) (not (findfile dwg-fn))) (princ (strcat "\n*error* : unable to find drawing : " (vl-princ-to-string dwg-fn)))) ((not (setq scr-fp (open scr-fn "w"))) (princ "\n*error* : unable to create script for commands.")) ((not (vl-consp dwg-com)) (princ "\n*error* : no commands in script")) (t (write-line (_open_cmd dwg-fn) scr-fp) (mapcar '(lambda (s)(write-line s scr-fp)) dwg-com) (write-line (_close_cmd) scr-fp) ) ) (if scr-fp (progn (close scr-fp)(gc)(command "._script" scr-fn))) ) (defun _open_cmd ($fn) (strcat ".open\n\"" $fn "\"\n(while (= 1 (logand (getvar \"cmdactive\") 1))(command \"Yes\"))")) (defun _close_cmd () (eval "(if (= (getvar \"writestat\") 1)(command \".qsave\" \".close\"))")) (defun c:t1 nil (c:new_desktop_file_copy))