import * as maptalks from 'maptalks';
export declare namespace Talks {
    function setVisible(that: {
        isVisible(): boolean;
        show(): void;
        hide(): void;
    }, visible: boolean): void;
    /**
     * 临时的坐标对象
     *
     * maptalks的很多方法支持传入可选的out参数, 避免在方法内部新建对象,
     * 如果调用方也只是临时使用这个对象(不向外传递), 由于JS是单线程的, 因此可以全局共享这个临时对象
     * */
    const tempCoordinate: maptalks.Coordinate;
    /** @see tempCoordinate */
    const tempPoint: maptalks.Point;
    /** @see https://github.com/maptalks/maptalks.js/blob/f69bc41cb3cc48c456c71a62dc953bdc582a4146/packages/maptalks/src/geometry/Path.ts#L479 */
    function extentFromCoordinates(coordinates: maptalks.Coordinate[], projection?: maptalks.Projection): maptalks.Extent;
}
export declare const TalksConst: {
    /** maptalks的Polygon默认是没有填充色的, 这里统一指定一个填充色, 方便和Polyline区分 */
    readonly FILL_COLOR_TG: "white";
    readonly FILL_OPACITY_TG: 0.5;
    readonly INFO_WINDOW_ZINDEX: 1000000;
};
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