import { IFilter, IFilterGroup } from '@shujujiang/core/widget/dataset';
import { IDataSetConditionCalculator } from '@shujujiang/core/widget/threshold';
import { IWidgetModel } from '@shujujiang/core/widget/widgetmodel';
import { ECWidget } from '../../echarts/ecwidget';
export declare class RiverChart extends ECWidget {
    composeOption(option: IWidgetModel): any;
    selectPoints(filter: IFilter | IFilterGroup): void;
    protected onPointClickted(event: any): void;
    protected invokeSelectPoints(calculator: IDataSetConditionCalculator): boolean;
    protected invokeClearSelectedPoints(): void;
}