/*!
 * wordcloud2.js
 * http://timdream.org/wordcloud2.js/
 *
 * Copyright 2011 - 2019 Tim Guan-tin Chien and contributors.
 * Released under the MIT license
 */
import type { IBaseLayoutOptions } from './interface';
import { BaseLayout } from './base';
interface IGridLayoutOptions extends IBaseLayoutOptions {
    gridSize?: number;
    ellipticity?: number;
}
export declare class GridLayout extends BaseLayout<IGridLayoutOptions> {
    static defaultOptions: Partial<IGridLayoutOptions>;
    private gridSize;
    private center;
    private pointsAtRadius;
    private ngx;
    private ngy;
    private grid;
    private maxRadius;
    constructor(options: IGridLayoutOptions);
    private getPointsAtRadius;
    private getTextInfo;
    private calculateEmptyRate;
    private fillGridAt;
    private updateGrid;
    private canFitText;
    layoutWord(index: number, shrinkRatio?: number): boolean;
    private outputText;
    private initGrid;
    canRepeat(): boolean;
    layout(data: any[], config: {
        width: number;
        height: number;
        origin?: [number, number];
    }): import("./interface").TagOutputItem[];
}
export {};