import { GraphLayout, GraphLayoutProps } from "../../core/graph-layout.js";
import type { Graph, NodeInterface, EdgeInterface } from "../../graph/graph.js";
export type D3ForceLayoutOptions = GraphLayoutProps & {
    alpha?: number;
    resumeAlpha?: number;
    nBodyStrength?: number;
    nBodyDistanceMin?: number;
    nBodyDistanceMax?: number;
    getCollisionRadius?: number;
};
export declare class D3ForceLayout extends GraphLayout<D3ForceLayoutOptions> {
    static defaultProps: {
        readonly alpha: 0.3;
        readonly resumeAlpha: 0.1;
        readonly nBodyStrength: -900;
        readonly nBodyDistanceMin: 100;
        readonly nBodyDistanceMax: 400;
        readonly getCollisionRadius: 0;
        readonly onLayoutStart: (detail?: import("../..").GraphLayoutEventDetail) => void;
        readonly onLayoutChange: (detail?: import("../..").GraphLayoutEventDetail) => void;
        readonly onLayoutDone: (detail?: import("../..").GraphLayoutEventDetail) => void;
        readonly onLayoutError: (error?: unknown) => void;
    };
    protected readonly _name = "D3";
    private _positionsByNodeId;
    private _graph;
    private _worker;
    constructor(props?: D3ForceLayoutOptions);
    initializeGraph(graph: Graph): void;
    updateGraph(graph: Graph): void;
    start(): void;
    update(): void;
    _engageWorker(): void;
    resume(): void;
    stop(): void;
    getEdgePosition: (edge: EdgeInterface) => {
        type: string;
        sourcePosition: any;
        targetPosition: any;
        controlPoints: any[];
    };
    getNodePosition: (node: NodeInterface | null) => any;
    lockNodePosition: (node: NodeInterface, x: number, y: number) => void;
    unlockNodePosition: (node: NodeInterface) => void;
    protected _updateBounds(): void;
}
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