Is there any way to batch convert true colours to the nearest index colour ? Lisp ? Software ?

[tsunsang2412]

Is there any way to batch convert true colours to the nearest index colour ? Lisp ? Software ? 

Since nowadays autocad drawings converted from BIM revit and darwing always use true colours which cannot be limited by the plotstyle. Changing them one by one is time-consuming. 

Any suggestion ? 

Thank you for your attention.

 

 

[cadffm]

Hi,

quick&dirty: Save a copy in dxf2000 format (saveas dxf2000) and reopen the file.

But i am sure you will find some tools too.

In Lisp it is simple to remove gc 420&430 from entities list

(entmod(vl-remove-if '(lambda(x)(member (car x) '(420 430))) (entget ename)))

Use your favorite searchengine and search for: AutoCAD convert truecolor to index color

or similar..

Sample hit: Click!

[pendean]

A websearch found a few like this one
https://forums.autodesk.com/t5/autocad-forum/layer-aci-index-to-rgb-lisp/td-p/10355852
and
https://www.cadtutor.net/forum/topic/35864-convert-from-index-colours-to-true-colours/?do=findCommen...
and... well, you get the idea.