import * as d3 from 'd3';
import { GraphData } from './graph-data.js';
export declare class GraphViewer {
    private svg;
    private svgNodes;
    private svgRelationships;
    private nodes;
    private relationships;
    private needZoomFit;
    private options;
    private svgScale;
    private svgTranslate;
    private svgContainer;
    private zoom;
    simulation: any;
    constructor(_selector: any, _options: any);
    private init;
    initSimulation(): any;
    private tick;
    private calculateIntersection;
    private colors;
    updateWithGraphData(graphData: GraphData): void;
    private updateNodesAndRelationships;
    private appendNodesToGraph;
    stickNode(event: d3.event, d: any): void;
    private appendRelationshipsToGraph;
    private getNodeIcon;
    private class2color;
    private class2darkenColor;
    private dragStarted;
    private dragged;
    private dragEnded;
    zoomFit(): void;
    size(): {
        nodes: number;
        relationships: number;
    };
}