IFClite TypeScript API
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    Interface SymbolicGridAxis

    A single IfcGridAxis tag + axis curve (compact endpoint-pair shape).

    interface SymbolicGridAxis {
        endpoints: [number, number, number, number];
        express_id: number;
        grid_express_id: number;
        tag: string;
        world_y: number | null;
    }
    Index
    endpoints express_id grid_express_id tag world_y
    endpoints: [number, number, number, number]

    Endpoint pair [x0, y0, x1, y1] in metres (plan view).

    express_id: number
    grid_express_id: number
    tag: string
    world_y: number | null

    World-Y elevation in metres, or null when unresolved. See the "UNRESOLVED SCALARS" note at the top of this section — null is not 0.

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