ETYPE or SORT LISP question

Hello,

I just run into a problem with one of my lisp functions. Depending on
the type of entity selected (line, polyline etc), I need to run a
different command.

I added ETYPE in the (defun list and then I tried to write an if
statement that does the following:

if the user selected just polylines then a command should be run

if the user selected polylines AND anything else (this should include
the scenario where the user selects lines/arcs/..... but NO polylines)
another command should be run.

(if (=etype "polyline") (progn
(command "pedit"...)
))
should there be an else between the different if statements?

Is there a way to ask for AND/OR?

(if (or (=etype "line") (=etype "arc") (=etype "circle") (=etype
"ellipse")........)(progn
(command "pedit"...)
))

Not sure if the sytax is correct, but that's not even the main
problem. I kept getting back the error - no function definition: ETYPE
and I wasn't sure on how to get around that.

Someone also mentioned that once the user selects all the required
entities there is a way to sort them into two lists - one that
contains all the polylines and run the command line and into another
list that contains everything else and then run the other command
line.

There may be other ways as well. I hope this makes sense.

Thank you in advance for your help,
Vlad

 

Or perhaps I may be able to do this another way. Depending on what
entities are selected, one of the two command lines that I need to run
will return an "Unknown command" message. If I could write an if
statement that will say

if "unknown command", then move to the next command line.

I am not sure if this is possible or what the sytax may be, but I
think it will work if it can be done.

Thank you,
Vlad

 

*
| Or perhaps I may be able to do this another way. Depending on what
| entities are selected, one of the two command lines that I need to run
| will return an "Unknown command" message. If I could write an if
| statement that will say
|
| if "unknown command", then move to the next command line.
|
| I am not sure if this is possible or what the sytax may be, but I
| think it will work if it can be done.
|
| Thank you,
| Vlad
|
| On Mar 14, 12:25 pm, wrote:
| > Hello,
| >
| > I just run into a problem with one of my lisp functions. Depending on
| > the type of entity selected (line, polyline etc), I need to run a
| > different command.
| >
| > I added ETYPE in the (defun list and then I tried to write an if
| > statement that does the following:
| >
| > if the user selected just polylines then a command should be run
| >
| > if the user selected polylines AND anything else (this should include
| > the scenario where the user selects lines/arcs/..... but NO polylines)
| > another command should be run.
| >
| > (if (=etype "polyline") (progn
| > (command "pedit"...)
| > ))

The code as shown will not work because "=etype" is not an
autolisp function. You should write (if (= etype "polyline") ....
Notice that there is a space betwen the equal sign and the
symbol etype.

 

Thank you, that seems to have worked since I no longer receive the
etype error. Here is what I have now:

(setq etype (cdr (assoc 0 ssl)))
(if (= etype "polyline") (progn
(command "" "pedit" "m" SS1 "" "c" "")))
;(setq etype (cdr (assoc 0 ss1)))
(if (member etype
'("3DFACE" "ARC" "ATTDEF" "CIRCLE" "DIMENSION" "ELLIPSE" "HATCH"
"INSERT" "LINE" "MTEXT" "POINT" "SOLID" "TEXT") ) (progn
(command " " "pedit" "m" ss1 "" "" "j" "" "c" "")))

What I am trying to do is when the user has a single, or multiple
polylines selected, it runs :
(command "" "pedit" "m" SS1 "" "c" "")

When the user has anyting else selected (polylines and lines, just
lines, arcs etc) it should run:
(command " " "pedit" "m" ss1 "" "" "j" "" "c" "")

Thank you in advance for any help.
Vlad

 

Someone mentioned that I can sort different types of entities from a
selection into lists. Let's say I have a selection called ss1 which
includes lines, arcs, circles and splines. Can I take the selection
and separate the splines into a list, run the command line for splines
and then place the remaining entities in a separate list and run the
other command?

Any help greately appreciated.
Vlad