/*
object-assign
(c) Sindre Sorhus
@license MIT
*/

/*!
 * @license GNU Affero General Public License.
 * Copyright (c) 2015, 2015 Ronny Lorenz <ronny@tbi.univie.ac.at>
 * v. 1.2.0
 * https://github.com/RaumZeit/MarchingSquares.js
 *
 * MarchingSquaresJS is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * MarchingSquaresJS is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * As additional permission under GNU Affero General Public License version 3
 * section 7, third-party projects (personal or commercial) may distribute,
 * include, or link against UNMODIFIED VERSIONS of MarchingSquaresJS without the
 * requirement that said third-party project for that reason alone becomes
 * subject to any requirement of the GNU Affero General Public License version 3.
 * Any modifications to MarchingSquaresJS, however, must be shared with the public
 * and made available.
 *
 * In summary this:
 * - allows you to use MarchingSquaresJS at no cost
 * - allows you to use MarchingSquaresJS for both personal and commercial purposes
 * - allows you to distribute UNMODIFIED VERSIONS of MarchingSquaresJS under any
 *   license as long as this license notice is included
 * - enables you to keep the source code of your program that uses MarchingSquaresJS
 *   undisclosed
 * - forces you to share any modifications you have made to MarchingSquaresJS,
 *   e.g. bug-fixes
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with MarchingSquaresJS.  If not, see <http://www.gnu.org/licenses/>.
 */

/*! xbsj-xe2(0.1.59-698e91f2-2024-04-25T07:43:33.000Z) 版权所有@北京西部世界科技有限公司 */

/**
   * splaytree v3.1.0
   * Fast Splay tree for Node and browser
   *
   * @author Alexander Milevski <info@w8r.name>
   * @license MIT
   * @preserve
   */
