所有graphviz的形状

digraph G {
    rankdir= LR

    "default"[shape=""]
    "box"[shape=box]
    "polygon"[shape=polygon]
    "ellipse"[shape=ellipse]
    "default"->"box"->"polygon"->"ellipse" [style=invis]

    "oval"[shape=oval]
    "circle"[shape=circle]
    "point"[shape=point]
    "egg"[shape=egg]
    "oval"->"circle"->"point"->"egg" [style=invis]

    "triangle"[shape=triangle]
    "plaintext"[shape=plaintext]
    "plain"[shape=plain]
    "diamond"[shape=diamond]
    "triangle"->"plaintext"->"plain"->"diamond" [style=invis]

    "trapezium"[shape=trapezium]
    "parallelogram"[shape=parallelogram]
    "house"[shape=house]
    "pentagon"[shape=pentagon]
    "trapezium"->"parallelogram"->"house"->"pentagon" [style=invis]

    "hexagon"[shape=hexagon]
    "septagon"[shape=septagon]
    "octagon"[shape=octagon]
    "doublecircle"[shape=doublecircle]
    "hexagon"->"septagon"->"octagon"->"doublecircle" [style=invis]

    "doubleoctagon"[shape=doubleoctagon]
    "tripleoctagon"[shape=tripleoctagon]
    "invtriangle"[shape=invtriangle]
    "invtrapezium"[shape=invtrapezium]
    "doubleoctagon"->"tripleoctagon"->"invtriangle"->"invtrapezium" [style=invis]

    "invhouse"[shape=invhouse]
    "Mdiamond"[shape=Mdiamond]
    "Msquare"[shape=Msquare]
    "Mcircle"[shape=Mcircle]
    "invhouse"->"Mdiamond"->"Msquare"->"Mcircle" [style=invis]

    "rect"[shape=rect]
    "rectangle"[shape=rectangle]
    "square"[shape=square]
    "star"[shape=star]
    "rect"->"rectangle"->"square"->"star" [style=invis]

    "none"[shape=none]
    "underline"[shape=underline]
    "cylinder"[shape=cylinder]
    "note"[shape=note]
    "none"->"underline"->"cylinder"->"note" [style=invis]

    "tab"[shape=tab]
    "folder"[shape=folder]
    "box3d"[shape=box3d]
    "component"[shape=component]
    "tab"->"folder"->"box3d"->"component" [style=invis]

    "promoter"[shape=promoter]
    "cds"[shape=cds]
    "terminator"[shape=terminator]
    "utr"[shape=utr]
    "promoter"->"cds"->"terminator"->"utr" [style=invis]

    "primersite"[shape=primersite]
    "restrictionsite"[shape=restrictionsite]
    "fivepoverhang"[shape=fivepoverhang]
    "threepoverhang"[shape=threepoverhang]
    "primersite"->"restrictionsite"->"fivepoverhang"->"threepoverhang" [style=invis]

    "noverhang"[shape=noverhang]
    "assembly"[shape=assembly]
    "signature"[shape=signature]
    "insulator"[shape=insulator]
    "noverhang"->"assembly"->"signature"->"insulator" [style=invis]

    "ribosite"[shape=ribosite]
    "rnastab"[shape=rnastab]
    "proteasesite"[shape=proteasesite]
    "proteinstab"[shape=proteinstab]
    "ribosite"->"rnastab"->"proteasesite"->"proteinstab" [style=invis]

    "rpromoter"[shape=rpromoter]
    "rarrow"[shape=rarrow]
    "larrow"[shape=larrow]
    "lpromoter"[shape=lpromoter]
    "rpromoter"->"rarrow"->"larrow"->"lpromoter" [style=invis]

}