IFClite TypeScript API
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    Interface SymbolicCircle

    A 2D circle / arc (IfcCircle).

    interface SymbolicCircle {
        center_x: number;
        center_y: number;
        end_angle: number;
        express_id: number;
        ifc_type: string;
        radius: number;
        representation: string;
        start_angle: number;
        world_y: number | null;
    }
    Index
    center_x: number
    center_y: number
    end_angle: number

    End angle in radians (2π for a full circle).

    express_id: number
    ifc_type: string
    radius: number
    representation: string
    start_angle: number

    Start angle in radians (0 for a full circle).

    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.