import { EventEmitter } from '@angular/core';
export declare abstract class Plot {
    title: string;
    requiredVars: object;
    units: string;
    subTitle?: string;
    chartMousemove: EventEmitter<any>;
    series: any;
    gradientId: number;
    d3plot: any;
    validTimes: any;
    forecastData: any;
    displayTitle: string;
    constructor(title: string, requiredVars: object, units: string, subTitle?: string);
    getChartData(): Array<any>;
    setD3Plot(d3plot: any): void;
    hasData(forecastData: any): boolean;
    protected determineToolTip(): string;
    getOptions(): object;
    closest(arr: any, closestTo: any): Array<number>;
    loadChartData(forecastData: object, validTimes: Array<number>): void;
    getColor(v: any): string;
    getForceY(): any;
    getTickCount(v: number): number;
    getTickFormat(v: any): string;
    loadGradients(currentPlot: any, chart: any, svg: any, gradientId: any): void;
    hexToRgb(hex: any): Array<number>;
    valToHex(val: any): string;
    interpChannel(a: any, b: any, percentage: any): number;
    findColorBetween(left: any, right: any, percentage: any): string;
}