g3-toolkit API Reference
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    Interface StructuralPort

    A boundary port on a container or plain node.

    interface StructuralPort {
        id: string;
        multiplicity?: string;
        side?: PortSide;
        size?: number;
    }
    Index

    Properties

    id multiplicity? side? size?

    Properties

    id: string
    multiplicity?: string

    LR-18 (owner review 2026-07-22): SysML-style multiplicity (e.g. "1", "0..*") rendered beside the port name label.

    side?: PortSide

    Side to fix the port to. Optional: when omitted it defaults to the flow axis (e.g. EAST/WEST for a RIGHT/LEFT layout), so data-flow ports sit on the left/right of a container by default. A port used as an edge's sourcePort defaults to the flow-forward side, as a targetPort to the flow-backward side.

    size?: number

    Square size in px (default 12; sized to carry a direction glyph when ports learn flow direction).

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