import { Algorithm } from '../../utils/algorithm';
import { BasicGraphOnEdges } from '../../structs/basicGraphOnEdges';
import { FiEdge } from './fiEdge';
import { FiNode } from './fiNode';
import { Point } from '../../math/geometry';
import { Edge } from '../../structs/edge';
import { IPsepColaSetting } from './iPsepColaSettings';
import { IGeomGraph } from '../initialLayout/iGeomGraph';
/**
  Using a force directed layout strategy with approximate computation of long-range node-node repulsive forces to achieve O(n log n) running time per iteration.
  It can be invoked on an existing layout (for example, as computed by MDS) to beautify it.

*/
export declare class IPsepCola extends Algorithm {
    basicGraph: BasicGraphOnEdges<FiEdge>;
    components: Array<FiNode[]>;
    edges: Array<FiEdge>;
    nodes: Array<FiNode>;
    clustersInfo: Map<IGeomGraph, {
        barycenter: Point;
        weight?: number;
    }>;
    /**  Holds the derivative of the cost function calculated of the most recent iteration.*/
    energy: number;
    graph: IGeomGraph;
    progress: number;
    settings: IPsepColaSetting;
    stepSize: number;
    clusterEdges: Array<Edge>;
    constructor(geometryGraph: IGeomGraph, settings: IPsepColaSetting, initialConstraintLevel: number);
    initFiNodesEdges(): void;
    currentConstraintLevel: number;
    getCurrentConstraintLevel(): number;
    setCurrentConstraintLevel(value: number): void;
    ResetNodePositions(): void;
    AddRepulsiveForce(v: FiNode, repulsion: Point): void;
    AddLogSpringForces(e: FiEdge, duv: Point, d: number): void;
    AddSquaredSpringForces(e: FiEdge, duv: Point, d: number): void;
    AddSpringForces(e: FiEdge): void;
    static AddGravityForce(origin: Point, gravity: number, v: FiNode): void;
    ComputeRepulsiveForces(vs: FiNode[]): void;
    SetBarycenter(root: IGeomGraph): Point;
    computeWeight(root: IGeomGraph): number;
    AddClusterForces(root: IGeomGraph): void;
    ComputeForces(): void;
    VerletIntegration(): number;
    ComputeDescentDirection(alpha: number): number;
    ResetForceVectors(): void;
    UpdateStepSize(energy0: number): void;
    RungeKuttaIntegration(): number;
    run(): void;
}