enthralled Posted January 10, 2022 Share Posted January 10, 2022 Hello, I have hundreds of lines and LW polylines and I need to color differentiate them, is there a way to give a random color to each line/polyline within a selection set? Quote Link to comment Share on other sites More sharing options...
exceed Posted January 10, 2022 Share Posted January 10, 2022 (edited) (defun c:ordercolor ( / *error* sel scolor selcount selnum selname sellist check ) (setvar "cmdecho" 0) (setq sel (ssget '((0 . "*LINE")))) (command "_undo" "_be") (defun *error*(e) (command "_undo" "_e") (princ) ) (setq scolor 0) (setq selcount (sslength sel)) (setq selnum 0) (repeat selcount (setq selname (ssname sel selnum)) (setq sellist (vlax-ename->vla-object selname)) (setq check (vlax-property-available-p sellist "Color" T)) (if check (vlax-put-property sellist 'Color scolor) ) (setq selnum (+ selnum 1)) (setq scolor (+ scolor 1)) (if (> scolor 255) (setq scolor 0)) ) (command "_undo" "_e") );end_defun (defun c:randomcolor ( / *error* sel scolor selcount selnum selname sellist check ) (setvar "cmdecho" 0) (setq sel (ssget '((0 . "*LINE")))) (command "_undo" "_be") (defun *error*(e) (command "_undo" "_e") (princ) ) (setq scolor 0) (setq selcount (sslength sel)) (setq selnum 0) (repeat selcount (setq selname (ssname sel selnum)) (setq sellist (vlax-ename->vla-object selname)) (setq check (vlax-property-available-p sellist "Color" T)) (if check (vlax-put-property sellist 'Color scolor) ) (setq selnum (+ selnum 1)) (setq scolor (LM:randrange 0 255)) ) (command "_undo" "_e") );end_defun ;; Random in Range - Lee Mac ;; Returns a pseudo-random integral number in a given range (inclusive) (defun LM:randrange ( a b ) (+ (min a b) (fix (* (LM:rand) (1+ (abs (- a b)))))) ) ;; Rand - Lee Mac ;; PRNG implementing a linear congruential generator with ;; parameters derived from the book 'Numerical Recipes' (defun LM:rand ( / a c m ) (setq m 4294967296.0 a 1664525.0 c 1013904223.0 $xn (rem (+ c (* a (cond ($xn) ((getvar 'date))))) m) ) (/ $xn m) ) RANDOMCOLOR to set random (0 to 255) ORDERCOLOR to set order (0 to 255) it changes according to the order of ssget. Edited January 10, 2022 by exceed 1 Quote Link to comment Share on other sites More sharing options...
enthralled Posted January 10, 2022 Author Share Posted January 10, 2022 14 minutes ago, exceed said: (defun c:ordercolor ( / *error* sel scolor selcount selnum selname sellist check ) (setvar "cmdecho" 0) (setq sel (ssget '((0 . "*LINE")))) (command "_undo" "_be") (defun *error*(e) (command "_undo" "_e") (princ) ) (setq scolor 0) (setq selcount (sslength sel)) (setq selnum 0) (repeat selcount (setq selname (ssname sel selnum)) (setq sellist (vlax-ename->vla-object selname)) (setq check (vlax-property-available-p sellist "Color" T)) (if check (vlax-put-property sellist 'Color scolor) ) (setq selnum (+ selnum 1)) (setq scolor (+ scolor 1)) (if (> scolor 255) (setq scolor 0)) ) (command "_undo" "_e") );end_defun (defun c:randomcolor ( / *error* sel scolor selcount selnum selname sellist check ) (setvar "cmdecho" 0) (setq sel (ssget '((0 . "*LINE")))) (command "_undo" "_be") (defun *error*(e) (command "_undo" "_e") (princ) ) (setq scolor 0) (setq selcount (sslength sel)) (setq selnum 0) (repeat selcount (setq selname (ssname sel selnum)) (setq sellist (vlax-ename->vla-object selname)) (setq check (vlax-property-available-p sellist "Color" T)) (if check (vlax-put-property sellist 'Color scolor) ) (setq selnum (+ selnum 1)) (setq scolor (LM:randrange 0 255)) ) (command "_undo" "_e") );end_defun ;; Random in Range - Lee Mac ;; Returns a pseudo-random integral number in a given range (inclusive) (defun LM:randrange ( a b ) (+ (min a b) (fix (* (LM:rand) (1+ (abs (- a b)))))) ) ;; Rand - Lee Mac ;; PRNG implementing a linear congruential generator with ;; parameters derived from the book 'Numerical Recipes' (defun LM:rand ( / a c m ) (setq m 4294967296.0 a 1664525.0 c 1013904223.0 $xn (rem (+ c (* a (cond ($xn) ((getvar 'date))))) m) ) (/ $xn m) ) RANDOMCOLOR to set random (0 to 255) ORDERCOLOR to set order (0 to 255) it changes according to the order of ssget. Thanks. This helps me a lot! Quote Link to comment Share on other sites More sharing options...
samifox Posted Saturday at 01:48 PM Share Posted Saturday at 01:48 PM that great lisp. Instead of 1-255 i want to provide a list of numbers to randomize. how to do it? Quote Link to comment Share on other sites More sharing options...
marko_ribar Posted Saturday at 08:20 PM Share Posted Saturday at 08:20 PM (edited) (defun c:randlstcolcurv ( / *error* LM:randrange LM:rand cad doc alo spc collst sel i e o col ) (or (vl-catch-all-error-p (vl-catch-all-apply (function vlax-get-acad-object) nil)) (vl-load-com)) (defun *error* ( m ) (while (= 8 (logand 8 (getvar (quote undoctl)))) (if doc (vla-endundomark doc) ) ) (if doc (vla-regen doc acactiveviewport) ) (if m (prompt m) ) (princ) ) ;; Random in Range - Lee Mac ;; Returns a pseudo-random integral number in a given range (inclusive) (defun LM:randrange ( a b ) (+ (min a b) (fix (* (LM:rand) (1+ (abs (- a b)))))) ) ;; Rand - Lee Mac ;; PRNG implementing a linear congruential generator with ;; parameters derived from the book 'Numerical Recipes' (defun LM:rand ( / a c m ) (setq m 4294967296.0 a 1664525.0 c 1013904223.0 $xn (rem (+ c (* a (cond ($xn) ((getvar 'date))))) m) ) (/ $xn m) ) (or cad (setq cad (vlax-get-acad-object))) (or doc (setq doc (vla-get-activedocument cad))) (or alo (setq alo (vla-get-activelayout doc))) (or spc (setq spc (vla-get-block alo))) (if doc (vla-startundomark doc) ) (setq collst (list 1 5 8 9 15 25 31 24 52 64 85 93 72)) ;;; edit to suit your needs ;;; (if (setq sel (ssget (list (cons 0 "*LINE")))) (repeat (setq i (sslength sel)) (setq e (ssname sel (setq i (1- i)))) (setq o (vlax-ename->vla-object e)) (if (vlax-property-available-p o "Color" T) (progn (setq col (nth (LM:randrange 0 (1- (length collst))) collst)) (vlax-put-property o (quote color) col) ) ) ) ) (*error* nil) ) HTH. M.R. Edited Sunday at 06:57 AM by marko_ribar Quote Link to comment Share on other sites More sharing options...
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