Help - Change Linetype and Linetype Scale

[barristann]

Hi all. Is possible to use lisp to change ALL polylines of layer named "Object_1" and "Object_2" to have

 

Linetype = Dashed

Linetype Scale = 1.2

Global Width = 1

 

Thank you

[Steven P]

Yes,

 

Basic ideas:

 

This link will explains what you need to do to do the selection part:

http://lee-mac.com/ssget.html

and the second or 3rd result of an internet search even does that for you:

https://www.cadtutor.net/forum/topic/71231-select-all-polylines-of-certain-layer-and-fillet-them/

 

(setq sel (ssget "_X" (list '(0 . "LWPOLYLINE") '(8 . "OBJ1") (cons 410 (getvar 'CTAB)))))

 

and then the next part use 

 

(command "chprop" sel ... )and follow the prompts you'd use to change the linetype from the selection

[barristann]

This is everything I need. It works! Thank you Steven P.