import { ElementRef } from '@angular/core';
import { D3ChartDirective, D3MarginDirective } from './chart';
import { D3PieBase } from './pie';
import * as d3 from 'd3';
export declare class D3ArcDirective extends D3PieBase {
    name: string;
    transition: string;
    duration: number;
    value: string;
    label: string;
    dy: string;
    textAnchor: string;
    innerRadius: number;
    labelRadius: number;
    private _center;
    private _arc;
    private _label;
    constructor(chart: D3ChartDirective, el: ElementRef, margin?: D3MarginDirective);
    redraw(): void;
    createArc(radius: number): d3.svg.Arc<any>;
}