Help with (simple?) script

Submitted by jfjohnny5 on Thu, 2012-04-12 07:45

I'm a student that is just stumped by what seems a simple assignment. I simply need to write a script that will parse a given scene and delete anything that is NOT a box. I can accurately determine if something isn't a box with:

for i in $objects do
if classOf i!=box then

but as soon as I try to delete those objects by using:

delete i

I get a Unknown Exception Error. I have tried the help files and just can't see why this shouldn't work.

General Scripting

Comments

Submitted by miauu on Thu, 2012-04-12 13:38.

I have the same error with

I have the same error with your code.
But this works:

on btnDelete pressed do
		(
			case rdoLec2.state of
			(
				1: (delete $box*)
				2:
				(
					obj = objects as array
					for i = obj.count to 1 by -1 where (classOf obj[i] != box) do delete obj[i]	
				)
				3: (delete $objects)
			)				
		)

This also works fine:

obj = objects as array
for o in obj where (classOf o != box) do delete o

Tools and Scripts for Autodesk 3dsMax

Submitted by jos on Thu, 2012-04-12 10:32.

for i in $objects do ( if

for i in $objects do
(
   if classOf i!=box then delete i
)
--returns OK

Submitted by jfjohnny5 on Thu, 2012-04-12 12:19.

And it does return OK if I

And it does return OK if I just enter that in the listener, but when part of the overall utility embedded in an event handler it fails. I can't figure out why.

Posted code below as you requested...

Submitted by miauu on Thu, 2012-04-12 09:43.

This work for me: ( for o

This work for me:

(
	for o in objects do
		if classOf o != box do delete o
)

Tools and Scripts for Autodesk 3dsMax

Submitted by jfjohnny5 on Thu, 2012-04-12 10:01.

I just tried exactly what you

I just tried exactly what you wrote and still no dice.

The only other info is that this is part of a Utility. So the user presses a button to make this bit of code run. I can't think of how that would change anything, but there it is.

I just keep getting:

>> MAXScript Rollout Handler Exception:
-- Unknown system exception <<

Submitted by jos on Thu, 2012-04-12 10:36.

can you post your code

can you post your code please?

Submitted by jfjohnny5 on Thu, 2012-04-12 12:16.

Here's my code...

utility utLec2 "Lec 2 Demo"
(
	button btnRed "Red Box" width:70 offset:[-5,0] across:2
	button btnYellow "Yellow Sphere" width:70 offset:[5,0]
	radiobuttons rdoLec2 "Remove ..." labels:#("Boxes only", "Everything except Boxes", "All")
	button btnDelete "Delete Now"
 
	on btnRed pressed do
		box wirecolor:red position:[-20,0,0]
 
	on btnYellow pressed do
		sphere wirecolor:yellow position:[20,0,0]
 
	on btnDelete pressed do
	(
		if rdoLec2.state == 1 then
			delete $box*
		if rdoLec2.state == 2 then
			for i in $objects do
				if classOf i != box then 
					delete i
		if rdoLec2.state == 3 then
			delete $objects
	)
)

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