import type { PieSeries } from "./PieSeries";
import { Percent } from "../../core/util/Percent";
import { PercentChart, IPercentChartPrivate, IPercentChartSettings } from "../percent/PercentChart";
export interface IPieChartSettings extends IPercentChartSettings {
    /**
     * Outer radius of the pie, in pixels or percent. A percent is of the
     * largest radius that fits the chart for its `startAngle` and `endAngle`.
     *
     * @see {@link https://www.amcharts.com/docs/v5/charts/percent-charts/pie-chart/#Pie_radius} for more info
     * @default 80%
     */
    radius?: number | Percent;
    /**
     * Inner radius of the pie, in pixels or percent of `radius`; any non-zero
     * value makes a donut. A negative number is pixels in from the outer
     * radius.
     *
     * @see {@link https://www.amcharts.com/docs/v5/charts/percent-charts/pie-chart/#Pie_radius} for more info
     */
    innerRadius?: number | Percent;
    /**
     * Angle where the pie starts, in degrees: `0` is at the right, `-90` at the
     * top, and angles grow clockwise. The chart uses it to fit and center the
     * pie; the series' own `startAngle` sets where its slices start, so set
     * both.
     *
     * @see {@link https://www.amcharts.com/docs/v5/charts/percent-charts/pie-chart/#Start_end_angles} for more info
     * @default -90
     */
    startAngle?: number;
    /**
     * Angle where the pie ends, in degrees. Like `startAngle`, it fits and
     * centers the pie; set the series' `endAngle` to match.
     *
     * @see {@link https://www.amcharts.com/docs/v5/charts/percent-charts/pie-chart/#Start_end_angles} for more info
     * @default 270
     */
    endAngle?: number;
}
export interface IPieChartPrivate extends IPercentChartPrivate {
    /**
     * @ignore
     */
    irModifyer?: number;
}
/**
 * A pie or donut chart. Several [[PieSeries]] in one chart split the space
 * between `innerRadius` and `radius` into concentric rings, unless they set
 * their own radii.
 *
 * @see {@link https://www.amcharts.com/docs/v5/charts/percent-charts/pie-chart/} for more info
 * @important
 */
export declare class PieChart extends PercentChart {
    static className: string;
    static classNames: Array<string>;
    _settings: IPieChartSettings;
    _privateSettings: IPieChartPrivate;
    _seriesType: PieSeries;
    _maxRadius: number;
    protected _afterNew(): void;
    protected _processSeries(series: this["_seriesType"]): void;
    _prepareChildren(): void;
    /**
     * Returns the outer radius in pixels, of the whole pie or of one series.
     *
     * @param   series  Series to get the radius of
     * @return          Radius in pixels
     */
    radius(series?: PieSeries): number;
    /**
     * Returns the inner radius in pixels, of the whole pie or of one series.
     *
     * @param   series  Series to get the inner radius of
     * @return          Radius in pixels
     */
    innerRadius(series?: PieSeries): number;
    _updateSize(): void;
}
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