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Something like this!? ; ***************************************************************************************************** ; Functions : PLBRJ ; Description : Breaking POLYLINE at blocks insertation points and joined into the one POLYLINE ; Author : Saxlle ; Date : January 19, 2026 ; ***************************************************************************************************** (prompt "\nTo run a LISP type: PLBRJ") (princ) (defun c:PLBRJ ( / ent joinList ptlist ss len spt ept i breakPoint) (setq ent (car (entsel "\nSelect the POLYLINE:")) joinList (list) ptlist (mapcar 'cdr (vl-remove-if-not '(lambda (x) (= (car x) 10)) (entget ent))) ss (ssget "_F" ptlist (list (cons 0 "INSERT"))) len (sslength ss) spt (vlax-curve-getStartPoint (vlax-ename->vla-object ent)) ept (vlax-curve-getEndPoint (vlax-ename->vla-object ent)) joinList (append (list spt) joinList) i 0 ) (while (< i len) (setq breakPoint (cdr (assoc 10 (entget (ssname ss i))))) (command "_.BREAK" breakPoint "_f" breakPoint breakPoint) (setq joinList (append (list breakPoint) joinList)) (setq i (1+ i)) ) (setq joinList (reverse (append (list ept) joinList)) ss (ssget "_F" joinList (list (cons 0 "LWPOLYLINE"))) ) (command-s "_PEDIT" "m" ss "" "j" "" "") (prompt "\nThe POLYLINE was broken at blocks insert points and joined into the one POLYLINE!") (princ) )

Try this !? You can use POINT or Insert Point of block... Break_Poly@point.lsp

Sure @karfung, but I will leave you to do that (I'm writing from the phone). This is the hint, find it everywhere in the code: (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")))) Find this part inside: Replace this part: (cons 1 (strcat def_text (rtos lenSegment 2 2) " m")) With this: (cons 1 (strcat def_text (itoa lenSegment) " m")) and you will get the whole integer without the decimal part. I've heard the Durian, but never taste it. If I ever come to Malaysia, I will taste it . Best regards.

@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

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.

chat made this, (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 ) ) ) (defun c:ORTHO_PLINE ( / edata ent newpts p pl pts x) (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) ) ) ) (if pl (princ "\nOrthogonal polyline created.") (princ "\nFailed to create polyline.") ) (princ) )

Here are the options for edit boxes: https://help.autodesk.com/view/ACD/2026/ENU/?guid=GUID-38A11AED-DDF5-4ACA-A8BB-1F7901D0AF50 I think if you change is_enabled from true to false it should do what you want, I can't remember jus now how to switch it from one to the other - might be a google thing