LISP Routines misbehaving (see

lamensterms · 发表于 2022-7-5 20:09:16

Hi guys,

I am just getting some weird behavior with some of my LISP routines, the best way to explain it would be - they don't work like they usually do.

For example, I have a routine with part code as below:

copy

(command "copybase" rvpt1 sset "" "ucs" "w" "pasteblock" rvpt2 "explode" "L" "move" "p" "" rvpt2 pause)

Which had been working fine for years, until today. Now I must change the code to:

copy

(command "copybase" rvpt1 sset "" "ucs" "w" "pasteblock" rvpt2 "explode" [b][u]"L" ""[/u][/b] "move" "p" "" rvpt2 pause)

  ..in order for the routine to work.

  Has anyone else every had this type of thing happen?  I can't help but think there may be some system variable that controls how commands behave within LISP routines, and I have accidently changed it.

  Thanks a lot for any help, looking forward to hearing back.

BIGAL · 发表于 2022-7-5 20:23:08

This I would consider to be correct as Explode like lots of others you can pick multiple entities so must use a "" to say all done, the variable will be something to do with pick singular or multiple. Try Pickadd 0 1 2

lamensterms · 发表于 2022-7-5 20:36:42

Hi BigAl,

Thanks for the reply. I have managed to correct the issue by running a system restore. This unfortunately makes it hard to experiment with other possible solutions, but I really needed the instant fix.

I tend to agree that I would expect to need to enter the "" after feeding the selection set to the EXPLODE command. I hate to be argumentative, but I had noticed in the past that executing EXPLODE through a LISP routine doesn't require the "" in order for it to work (which I find strange, but perhaps there is some explanation). For example, if I draw a polyline, then enter (command "explode" "L") at the command line, the polyline will happily be exploded down to a line, but if I enter (command "explode" "L" "") after drawing a polyine - the polyline will be exploded, and then the PLINE command will be initiated.