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Function returning hole size of torus?
Olympia Rebus
Muse of Chaos
Join date: 22 Feb 2004
Posts: 1,831
06-01-2005 09:58
Hi,
I'm working on a script that needs to include the current hole size of a torus in its calculations. I know llGetPrimParamerers (or something similar) returns the hole size, but it comes with a bunch of other parameters too and I don't know how to isolate the hole size. Any ideas?

Thanks in advance.

p.s. would something like
From: someone
llGetPrimitiveParams([HOLE_SIZE]);

return what I'm looking for?
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Jillian Callahan
Rotary-winged Neko Girl
Join date: 24 Jun 2004
Posts: 3,766
06-01-2005 11:03
PRIM_TYPE returns a long list of info, including hole size for the torus. You can read about this on the wiki page for llSetPrimitiveParams 'cause the details aren't on the page for llGetPrimitiveParams . :)
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Chandra Page
Build! Code. Sleep?
Join date: 7 Oct 2004
Posts: 360
06-01-2005 12:09
llGetPrimitiveParams produces a big honkin' list of of output, primarily because the big honkin' list is what llSetPrimitiveParams takes as an argument. Just grabbing a single value out of the reams of output llGetPrimitiveParams produces isn't difficult, but it is annoying. Drop this script into the torus:

CODE
vector GetHoleSize()
{
    list params;
    integer primType;
    vector holeSize = ZERO_VECTOR;

        
    params = llGetPrimitiveParams([PRIM_TYPE]);
    primType = llList2Integer(params, 0);

    if (primType == PRIM_TYPE_TORUS ||
        primType == PRIM_TYPE_TUBE ||
        primType == PRIM_TYPE_RING)
    {
        holeSize = llList2Vector(params, 5);
    }
    else
    {
        llOwnerSay("Primitive type does not have a hole size.");
    }

    return holeSize;
}

default
{
    touch_start(integer total_number)
    {
        llSay(0, "Hole size: " + (string)GetHoleSize());
    }
}


Touching the primitive will cause it to report its hole size. Hole size is stored as a vector; the third vector parameter is not used and will always be 0.0.
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Olympia Rebus
Muse of Chaos
Join date: 22 Feb 2004
Posts: 1,831
06-01-2005 12:13
Ooooh, very nice!
You even added a part to deal with the object being a prim without a hole. Sweet!
:D
From: Chandra Page
llGetPrimitiveParams produces a big honkin' list of of output, primarily because the big honkin' list is what llSetPrimitiveParams takes as an argument. Just grabbing a single value out of the reams of output llGetPrimitiveParams produces isn't difficult, but it is annoying. Drop this script into the torus:

CODE
vector GetHoleSize()
{
    list params;
    integer primType;
    vector holeSize = ZERO_VECTOR;

        
    params = llGetPrimitiveParams([PRIM_TYPE]);
    primType = llList2Integer(params, 0);

    if (primType == PRIM_TYPE_TORUS ||
        primType == PRIM_TYPE_TUBE ||
        primType == PRIM_TYPE_RING)
    {
        holeSize = llList2Vector(params, 5);
    }
    else
    {
        llOwnerSay("Primitive type does not have a hole size.");
    }

    return holeSize;
}

default
{
    touch_start(integer total_number)
    {
        llSay(0, "Hole size: " + (string)GetHoleSize());
    }
}


Touching the primitive will cause it to report its hole size. Hole size is stored as a vector; the third vector parameter is not used and will always be 0.0.
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Stinky Queso
Second Life Resident
Join date: 29 Nov 2004
Posts: 53
06-01-2005 21:40
If for building purposes you wanted to find the actual size of the hole in meters, you could always do something like:

holesize/10 * primsizeX;
holesize/10 * primsizeY;

err, unless holesize returns something like a float between 0 and 1, which is most likely. then you would multiply by ten. ok, this isnt terribly useful but i had this idea, and here it is.
Strife Onizuka
Moonchild
Join date: 3 Mar 2004
Posts: 5,887
06-01-2005 23:21
FYI holesize and topsize are the same paramater.
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- Cyril Connolly

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- James Nachtwey
Olympia Rebus
Muse of Chaos
Join date: 22 Feb 2004
Posts: 1,831
06-02-2005 08:10
From: Stinky Queso
If for building purposes you wanted to find the actual size of the hole in meters, you could always do something like:

holesize/10 * primsizeX;
holesize/10 * primsizeY;

err, unless holesize returns something like a float between 0 and 1, which is most likely. then you would multiply by ten. ok, this isnt terribly useful but i had this idea, and here it is.


Thanks Stinky,
I can't wait to log in tonight and try it that out :D

Thanks to Strife for the tip about topsize too
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