import { ChangeDetectorRef, OnInit } from '@angular/core';
import { HistogramView } from '../../Diagrams.types';
import { DiagramsService } from '../../DiagramsService';
import * as i0 from "@angular/core";
export declare class HistogramComponent implements OnInit {
    private diagramsService;
    private cb;
    placement: string;
    private charts$;
    viewCharts: Array<HistogramView> | null;
    private total;
    constructor(diagramsService: DiagramsService, cb: ChangeDetectorRef);
    ngOnInit(): void;
    private convertCharts;
    private getTotal;
    static ɵfac: i0.ɵɵFactoryDeclaration<HistogramComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<HistogramComponent, "histogram", never, { "placement": "placement"; }, {}, never, never, false>;
}
