filtering existing selection set

I am attempting to select all viewports and re-filter the list several times performing operations on each refilter, thus not having to reselect again and again..

Why is this code causing an error?

(setq SelectionSet (ssget (list '(0 . "VIEWPORT"))))
(ssget "SelectionSet" '(-4 . "<NOT")'(8 . "PSPLAN_VPORT,PSPROF_VPORT")'(-4 . "NOT>"))
(command "change" "previous" "" "properties" "Layer" "defpoints" "")


I must have a syntax incorrect or do I need to use a (list '(-4 . "<NOT")........
Thanks,
Curtis

 

I must have a syntax incorrect

The first one had a good filter list, the second had a series of lists. You
need to put them in one list:

(ssget "SelectionSet" '((-4 . "<NOT")'(8 . "PSPLAN_VPORT,PSPROF_VPORT")'(-4
.. "NOT>")))

 

I copied the exact posting and even tried variations of the lists as one list. to one resolve: " error: bad point argument"

(setq SelectionSet (ssget (list '(0 . "VIEWPORT"))))
(ssget "SelectionSet" '((-4 . "<NOT")'(8 . "PSPLAN_VPORT,PSPROF_VPORT")'(-4 . "NOT>")))
(command "change" "previous" "" "properties" "Layer" "defpoints" "")

I thought this would be a simple thing, but it keeps eluding me.

Any help is appreciated.

Curtis

 

Curtis,
You can't pass a selection set to the (ssget) function. You can use more
than 1 filter at a time, however.
Try this:
(setq SelectionSet (ssget (list '(0 . "VIEWPORT")'(-4 . "<NOT")
'(8 . "PSPLAN_VPORT,PSPROF_VPORT")'(-4 . "NOT>"))))

HTH,
Jeff

list. to one resolve: " error: bad point argument"

"PSPLAN_VPORT,PSPROF_VPORT")'(-4 . "NOT>")))

 

I copied the exact posting and even tried variations of the lists as one
list. to one resolve: " error: bad point argument"

He's right, you can't pass the sset name as an argument. But you can combine
all the filters, or use the previous set:

(setq SelectionSet (ssget (list '(0 . "VIEWPORT"))))
(setq SelectionSet (ssget "p" '((-4 . "<NOT")(8 .
"PSPLAN_VPORT,PSPROF_VPORT")(-4 . "NOT>"))))

Also note that you only need to quote the whole filter list.

 

Thanks everyone for your help,
Problems all solved

Curtis