selecting one entity

I have a lisp which selects some polylines then performs some actions on
them one by one, what i do is use the (ssget+sslenght+ssname) then (ssget)
again to select one item with the filter set to use the entity name code
(-1), but i get a nul selection set, what is wrong with the code and ae
there other methods to do that
(ssget+sslenght+ssname+entget)
(setq b (assoc -1 (objectlist)) ,everything is fine till here

(setq b1 (ssget "X" (list b))) ,returns nul
,which means i can not perform a command on the previous set supposed to
have been created in the previous step
(command "whatever" "p")

,and it does work if i would choose (setq b (assoc 8 (objectlist)), but
then i get many objects in the selection set instead of only one
any idea's.
martin

 

Martin,

-1 enames won't work with ssget, but then why?

If you really need a selection set, then

(setq b1 (ssadd))
(ssadd b1 b)

(ssget "P") works on Previsous

Why can't you feed the ename directly to the function?


-David

 

You can't use -1 group code in a ssget filter.

--
Ken Alexander
Acad2000
Windows2000 Prof.

"We can't solve problems by using the same kind
of thinking we used when we created them."
--Albert Einstein

 

i have tried the (ssadd) to create a new selection set of one object from
the main selection set but still "P" refers to main set if i use the command
"move" "p"
martin

 

if you're saying you did this
(setq setx(ssadd))
(setq setx(ssadd entx setx))
then you could do this
"move" setx
or if you just wanted to move entx why not
"move" entx