Error encounter for color changing lisp

Been Using this colour changing lisp. So far its good. But found that some lines will not change & encounter error instead.

Command: 4

 

To assign to object(s) color 4 (Cyan),

Select objects: Specify opposite corner: 2 found

 

Select objects: Unknown command "P". Press F1 for help.

Unknown command "C". Press F1 for help.

4

Unknown command "4". Press F1 for help.

 

Assigned color to 2 object(s).

Attached is dwg. Left side of line cannot change. Right side can

what is problem?

;;  ColorCommandNames.lsp
;;  Function name: CCN; command names 0 through 256
;;  Defines commands for all color numbers.
;;  Type color number as command, select objects, and
;;    they will have that color assigned as entity override.
;;  Based on okc.lsp by Tommy Shumpert at Cadalyst CAD
;;    Tips, Tip #3645, "Change Entity Colors," 15 May 2011
;;  Slightly altered, and expanded on, by Kent Cooper,
;;    13 September 2012, to add to original's colors 1-255:
;;    0 = ByBlock
;;    256 = ByLayer
;;  Enhanced 17 September 2013 [prompt including color names,
;;    notifications, locked-Layer prevention, operation only with
;;    valid selection, command-echo suppression.]

(setq i 0)
(while (<= i 256)
 (eval (read (strcat "(defun c:" (itoa i) "() (ccn " (itoa i) "))")))
 (setq i (1+ i))
)

(defun ccn (color / ss cmde); = Color Command Name
 (prompt
   (strcat
     "\nTo assign to object(s) color "
     (itoa color)
     (cond
       ((< color 
         (strcat
           " ("
           (nth color '("ByBlock" "Red" "Yellow" "Green" "Cyan" "Blue" "Magenta" "White/Black"))
           ")"
         ); strcat
       ); ByBlock-or-named-color condition
       ((= color 256) " (ByLayer)")
       (""); add nothing for 1 through 255
     ); cond
     ","
   ); strcat
 ); prompt
 (if (setq ss (ssget "_:L")); User selection, excluding object(s) on locked Layer(s)
   (progn ; then
     (setq cmde (getvar 'cmdecho))
     (setvar 'cmdecho 0)
     (command
       "._change" ss "" "p" "c"
       (cond
         ((= color 0) "byblock")
         ((= color 256) "bylayer")
         (color)
       ); cond
       ""
     ); command
     (setvar 'cmdecho cmde)
     (prompt (strcat "\nAssigned color to " (itoa (sslength ss)) " object(s)."))
   ); progn
   (prompt "\nNo changeable objects selected."); else
 ); if
 (princ)
)

cannot change colour.dwg

That LISP uses the "Change" command. If you run "Change" on the polyline on the left side it will throw a "not parallel to ucs" error. You could run the "Flatten" command on the lines first, then run the LISP and see if that works for you.

BKT

Try a vl solution

(repeat (setq x (sslength ss))
(vla-put-color (vlax-ename->vla-object (ssname ss (setq x (- x 1)))) 4)
)

Try a vl solution

 

(repeat (setq x (sslength ss))
(vla-put-color (vlax-ename->vla-object (ssname ss (setq x (- x 1)))) 4)
)

Which part to insert this code?

That LISP uses the "Change" command. If you run "Change" on the polyline on the left side it will throw a "not parallel to ucs" error. You could run the "Flatten" command on the lines first, then run the LISP and see if that works for you.

 

BKT

Possible but prefer not to.

Try changing:

"._change" ss "" "p" "c"

To:

"._chprop" ss "" "c"

Try changing:

"._change" ss "" "p" "c"

To:

"._chprop" ss "" "c"

Thanks dude!! That worked!!

Try this function

(defun ccn (col / a i)
 (if (setq a (ssget "_:L"))
   (progn
     (repeat (setq i (sslength a))
(vla-put-color
  (vlax-ename->vla-object (ssname a (setq i (1- i))))
  col
)
     )
     (prompt (strcat
	"\nAssigned "
	(cond ((< col 
	       (nth col
		    '("ByBlock"	   "Red"	"Yellow"
		      "Green"	   "Cyan"	"Blue"
		      "Magenta"	   "White/Black"
		     )
	       )
	      )
	      ((= col 256) "bylayer")
	      ((itoa col))
	)
	" color to "
	(itoa (sslength a))
	" object(s)."
      )
     )
   )
   (prompt "\nNo changeable objects selected.")
 )
)

Try this function

 

Tried. but when pressing numbers it do not register a command. The present code when press 2 or 10 then select object & enter will change object to red colour. If press 3 or 100, will change to green colour.

Color 2 & 10 are not same... they are different shades of same color... same with 3 & 100

YOu can see the difference in color index

Color 2 & 10 are not same... they are different shades of same color... same with 3 & 100

 

YOu can see the difference in color index

That's correct . I meant how it visually look in its base colour. wanted to emphasie that the colour will change according to its number indicated which as you have mention, the colour index.

by the way how does your code works?

vla-put-color