import { default as Position } from '../../core/Position.js';
import { DynamicLayer } from '../../layer/index.js';
/**
 * 两点计算 可视域分析
 * @param viewer
 * @param positions
 * @returns
 */
export default function viewShedAnalysis(viewer: any, positions: Position[], analysisLayer: DynamicLayer): {
    viewShed: any;
    clear: () => void;
};