llSetPrimParameters and Path Cuts

I am trying to make a shower curtain that opens on touch, and I have used a torus for this. The only param that needs resetting is the path cut to open and close the prim. I checked the WIKI and was unable to find this.
Is this possible? If so, can someone please demonstrate the syntax for that. Thanks.
I am a new scripter so please be kind.

It is all in here:
http://wiki.secondlife.com/wiki/LlSetPrimitiveParams
Look for PRIM_TYPE, PRIM_TYPE_TORUS, vector cut.
The above site has a link to more detailed information:
http://wiki.secondlife.com/wiki/PRIM_TYPE_TORUS
The cut.x and the cut.y has values similar to those found when you look at the torus in the viewer's editor
cut.z is not used
This site is also useful:
http://www.lslwiki.net/lslwiki/wakka.php?wakka=llSetPrimitiveParams
Both sites has examples or will direct you to some

You have to set all the prim shape parameters in one call. Best way to do this is probably read-modify-write:


list old = llGetPrimitiveParams([PRIM_TYPE]);
list new = llListReplaceList(old,[<start,end,0>],2,2)
llSetPrimitiveParams([PRIM_TYPE]+new);

(this could all be done on one line but it's easiest to understand in two statements)

The trick here is to use llGetPrimitiveParams to get the primitive parameters for you. This little script will give you the corresponding llSetPrimitiveParms string that you would need to set the PRIM_TYPE primitive parameters:

default
{
    touch_start(integer total_number)
    {
        llOwnerSay("llSetPrimitiveParams([PRIM_TYPE, " + llList2CSV(llGetPrimitiveParams([PRIM_TYPE])) + "]);");
    }
}

Drop it in your object, then whenever you click the object it will give you the llSetPrimitiveParams line that you would need to set that same shape.

Note: It is not possible to just set a single PRIM_TYPE value.

Note also: The parameters are all described here , but I wouldn't really bother - it's mind-numbing. Using llGetPrimitiveParams is the fool-proof way of getting a primitive's parameters.

What a wealth of information. I think I can, I think I can. Thanks.