Topic: nested ename list

[MP]

You're right Tim. Without additional information over and above a nested entity name, like the absolute coordinates where it exists relative to the instance you're interested in, it is not possible to associate the (nested entity) with an arbitrary outermost block instance as only one nested entity exists per all the instances (in the block definition) - when multiple instances exist.

[CAB]

when multiple instances exist.

That's what initially got me. When Tim mentioned his ten copies of the block it finally clicked.
I agree, no way to backtrack without some point data.

[MP]

I've been banging my head on this.

(setq elst (nentsel "\nSelect nested object: "))
(setq nestlst (last elst))

Can nestlst be determined without using nentsel or nentselp?
IOW, a function which takes a nested ename argument and returns
the same list as nestlst.

My research on this question has not turned up a solution so far.
My attempts to code it looking at DXF codes 330 and 331 have failed.

TIA for any help.

If there are only single instances of the block definitions(s) yes.

[Joe Burke]

Thanks everyone for your thoughts and replies.

I was trying to answer a question in the Autodesk customization NG so I don't have all the details. The topic is named Coordinates transformation dated 10/3

[T.Willey]

Thanks everyone for your thoughts and replies.

I was trying to answer a question in the Autodesk customization NG so I don't have all the details. The topic is named Coordinates transformation dated 10/3

Since they changed it, I can't even log on anymore, so I just said forget it, so I haven't been there since.  Maybe I'll go there to see what was asked.

Edit:
Here is the topic ( I think ).
[ http://discussion.autodesk.com/forums/thread.jspa?threadID=696648&tstart=0 ]

If this is the case, then you would have to see the code he is using to get the nested block information.  If he is just stepping through the block definition per insert, then it should be just a transformation matrix from the origin of the block definition, to the insertion point of the insert plus the scale and rotation of the insert.

[CAB]

The link:
http://discussion.autodesk.com/forums/thread.jspa?threadID=696648&tstart=0

[qq2008]

The link:
http://discussion.autodesk.com/forums/thread.jspa?threadID=696648&tstart=0

 
here is the code

Code: [Select]

;;;pickset to ename list or vla-object list
;;;Parameters:sset for the selection of sets, xflag to nil when the table into a graphic element for T, into vla object table
;;;for example： (sset->list (ssget) nil)
(defun sset->list (sset xflag / ssetlist)
 (setq ssetlist
       (vl-remove-if   'listp
              (mapcar 'cadr (ssnamex sset))
       ) ;_ end vl-remove-if
 ) ;_ end setq
 (if xflag
  (mapcar 'vlax-ename->vla-object ssetlist)
  ssetlist
 ) ;_ end if
) ;_ end defun
;;;===========================