Draw probelm

[MaxV]

Hello,
I try to draw a spline with draw, but I don't know how to send the coordinates:

 view layout [ box 100x100 effect [ draw [
            spline 10 closed 20x20  25x90 80x80 70x25
             ]]]

it's ok, but:

 view layout [ box 100x100 effect [ draw [
            spline 10 closed [20x20  25x90 80x80 70x25]
             ]]]

It's a mess, Rebol go in crash or don't get the series.
May you help me?

[Graham]

From James Marsden

rebol[]
random/seed now/time
beats: copy [4 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 4 0 0 0 0 0 
0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0]
heartbeat: func [/local g n p beatpart][
    g: copy []
    p: copy []
    beatpart: copy/part beats 24
    repeat n length? beatpart [
        append p compose [(as-pair n * 10 (beatpart/:n) * -10) (as-pair 
(n * 10) + 5 (beatpart/:n) * 10)]
    ]
    append g compose/deep [
        translate 0x60
        fill-pen off
        line-width 5
        pen 0.255.0.200
        spline 20 (p)
        line-width 1
        pen 0.255.100
        spline 20 (p)
    ]
    append beats first beats
    remove beats
    return g
]
view layout/size [
    at 10x10 box 260x120 black edge [size: 0x0] rate 0:00:0.1 effect 
[draw[]] feel [
        engage: func [f a e][
            if a = 'time [f/effect/draw: heartbeat show f]
        ]
    ]
] 280x140

[MaxV]

Ok, so with:

b:  [20x20 10x10 15x25 35x25]
a: compose [spline 20 (b)]
view layout [box effect [draw a]]

I resolve all.
Thank you