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"Plines in same direction", Yes Lee-Mac has a method also. Note the use of Pedit as Bricscad does not have a "Reverse" command, as at V25. ; Checking if pline is CW or CCW and set to CCW ; Orignal idea by Kent Cooper, 1 August 2018 Offsetinorout.lsp ; By Alan H July 2020 (defun AH:chkcwccw (ent / objnew area1 area2 obj minpoint maxpoint) (setq obj (vlax-ename->vla-object ent)) (vla-GetBoundingBox obj 'minpoint 'maxpoint) (setq pointmin (vlax-safearray->list minpoint)) (setq pointmax (vlax-safearray->list maxpoint)) (setq dist (/ (distance pointmin pointmax) 20.0)) (vla-offset obj dist) (setq objnew (vlax-ename->vla-object (entlast))) (setq area1 (vlax-get objnew 'Area)) (vla-delete objnew) (vla-offset obj (- dist)) (setq objnew (vlax-ename->vla-object (entlast))) (setq area2 (vlax-get objnew 'Area)) (vla-delete objnew) (if (> area1 area2) (command "Pedit" ent "R" "") ) (princ) ) (defun c:CWCCW ( / *error* x ent oldsnap doc ss) (setq doc (vla-get-activedocument (vlax-get-acad-object))) (vla-startundomark doc) (setq oldsnap (getvar 'osmode)) (setvar 'osmode 0) (prompt (strcat "\nSelect Plines to check")) (if (setq ss (ssget '((0 . "*POLYLINE")))) (progn (repeat (setq x (sslength ss)) (setq ent (ssname ss (setq x (- x 1)))) (AH:chkcwccw ent) ) ) ) (vla-endundomark doc) (alert (strcat (rtos y 2 0) " Plines reversed")) (setvar 'osmode oldsnap) (princ) ) (vl-load-com) (prompt "\nType CWCCW to set plines to CCW") (c:CWCCW)