import { Cartesian3, Viewer, EllipseGraphics, PointGraphics } from 'cesium';
import { DataCenter } from './DataCenter';
export type CircleCallbackFn = (firstPoint: Cartesian3, endPoint: Cartesian3) => void;
export type CircleOptions = {
    point?: PointGraphics.ConstructorOptions;
    ellipse?: EllipseGraphics.ConstructorOptions;
    circleOverFun?: CircleCallbackFn;
    circleMovingFun?: CircleCallbackFn;
    circleEditFun?: CircleCallbackFn;
} | null;
export declare class CircleDrawer extends DataCenter {
    private handler;
    private firstPoint;
    private endPoint;
    private distance;
    private angle;
    private ellipse;
    private endPointEntity;
    private ellipseEntity;
    private circleOverFun;
    private circleMovingFun;
    private circleEditFun;
    constructor(viewer: Viewer, options?: CircleOptions);
    start(): void;
    getEntity(): any;
    clearAll(): void;
    private circle_L_ClickEvent;
    private setAngle;
    private circle_L_DownEvent;
    private circle_L_UpEvent;
    private circle_moveEvent;
    private circleMove;
    private updateEndPoint;
    private countDistance;
    private createCircle;
}