import { Viewer } from "../Viewer";
import { Point2d } from "./Common/Geometry";
import { ViewParams } from "./Common/OdaGeAction";
import { OdBaseDragger } from "./Common/OdBaseDragger";
export declare class OrbitAroundBuildingDragger extends OdBaseDragger {
    protected maxPolarAngle: number;
    protected minPolarAngle: number;
    protected m_viewCenter: any;
    protected m_startPoint: Point2d;
    protected startCameraParams: ViewParams;
    protected m_delta: number;
    constructor(viewer: Viewer);
    start(x: number, y: number): void;
    setDefaultViewParams(): void;
    drag(x: number, y: number): void;
    end(): void;
    getCenter(): any;
}