import { EventEmitter, OnChanges, SimpleChanges } from '@angular/core';
import { ColorHelper } from '../common/color.helper';
import { Gradient } from '../common/types/gradient.interface';
import { ScaleType } from '../common/types/scale-type.enum';
import { AreaChartSeries } from '../models/chart-data.model';
import * as i0 from "@angular/core";
export declare class AreaSeriesComponent implements OnChanges {
    data: AreaChartSeries;
    xScale: any;
    yScale: any;
    baseValue: any;
    colors: ColorHelper;
    scaleType: ScaleType;
    stacked: boolean;
    normalized: boolean;
    gradient: boolean;
    curve: any;
    activeEntries: any[];
    animations: boolean;
    select: EventEmitter<any>;
    opacity: number;
    path: string;
    startingPath: string;
    hasGradient: boolean;
    gradientStops: Gradient[];
    ngOnChanges(changes: SimpleChanges): void;
    update(): void;
    updateGradient(): void;
    isActive(entry: any): boolean;
    isInactive(entry: any): boolean;
    static ɵfac: i0.ɵɵFactoryDeclaration<AreaSeriesComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<AreaSeriesComponent, "g[ngx-charts-area-series]", never, { "data": "data"; "xScale": "xScale"; "yScale": "yScale"; "baseValue": "baseValue"; "colors": "colors"; "scaleType": "scaleType"; "stacked": "stacked"; "normalized": "normalized"; "gradient": "gradient"; "curve": "curve"; "activeEntries": "activeEntries"; "animations": "animations"; }, { "select": "select"; }, never, never>;
}