微信小程序坐标点聚合demo

; (function(root, factory) { if (typeof exports === "object") { // CommonJS module.exports = exports = factory(); } else if (typeof define === "function" && define.amd) { // AMD define([], factory); } else { // Global (browser) root.CryptoJS = factory(); } }(this, function() { /*globals window, global, require*/ /** * CryptoJS core components. */ var CryptoJS = CryptoJS || (function(Math, undefined) { var crypto; // Native crypto from window (Browser) if (typeof window !== 'undefined' && window.crypto) { crypto = window.crypto; } // Native (experimental IE 11) crypto from window (Browser) if (!crypto && typeof window !== 'undefined' && window.msCrypto) { crypto = window.msCrypto; } // Native crypto from global (NodeJS) if (!crypto && typeof global !== 'undefined' && global.crypto) { crypto = global.crypto; } // Native crypto import via require (NodeJS) if (!crypto && typeof require === 'function') { try { crypto = require('crypto'); } catch (err) {} } /* * Cryptographically secure pseudorandom number generator * * As Math.random() is cryptographically not safe to use */ var cryptoSecureRandomInt = function() { if (crypto) { // Use getRandomValues method (Browser) if (typeof crypto.getRandomValues === 'function') { try { return crypto.getRandomValues(new Uint32Array(1))[0]; } catch (err) {} } // Use randomBytes method (NodeJS) if (typeof crypto.randomBytes === 'function') { try { return crypto.randomBytes(4).readInt32LE(); } catch (err) {} } } throw new Error('Native crypto module could not be used to get secure random number.'); }; /* * Local polyfill of Object.create */ var create = Object.create || (function() { function F() {} return function(obj) { var subtype; F.prototype = obj; subtype = new F(); F.prototype = null; return subtype; }; }()) /** * CryptoJS namespace. */ var C = {}; /** * Library namespace. */ var C_lib = C.lib = {}; /** * Base object for prototypal inheritance. */ var Base = C_lib.Base = (function() { return { /** * Creates a new object that inherits from this object. * * @param {Object} overrides Properties to copy into the new object. * * @return {Object} The new object. * * @static * * @example * * var MyType = CryptoJS.lib.Base.extend({ * field: 'value', * * method: function () { * } * }); */ extend: function(overrides) { // Spawn var subtype = create(this); // Augment if (overrides) { subtype.mixIn(overrides); } // Create default initializer if (!subtype.hasOwnProperty('init') || this.init === subtype.init) { subtype.init = function() { subtype.$super.init.apply(this, arguments); }; } // Initializer's prototype is the subtype object subtype.init.prototype = subtype; // Reference supertype subtype.$super = this; return subtype; }, /** * Extends this object and runs the init method. * Arguments to create() will be passed to init(). * * @return {Object} The new object. * * @static * * @example * * var instance = MyType.create(); */ create: function() { var instance = this.extend(); instance.init.apply(instance, arguments); return instance; }, /** * Initializes a newly created object. * Override this method to add some logic when your objects are created. * * @example * * var MyType = CryptoJS.lib.Base.extend({ * init: function () { * // ... * } * }); */ init: function() {}, /** * Copies properties into this object. * * @param {Object} properties The properties to mix in. * * @example * * MyType.mixIn({ * field: 'value' * }); */ mixIn: function(properties) { for (var propertyName in properties) { if (properties.hasOwnProperty(propertyName)) { this[propertyName] = properties[propertyName]; } } // IE won't copy toString using the loop above if (properties.hasOwnProperty('toString')) { this.toString = properties.toString; } }, /** * Creates a copy of this object. * * @return {Object} The clone. * * @example * * var clone = instance.clone(); */ clone: function() { return this.init.prototype.extend(this); } }; }()); /** * An array of 32-bit words. * * @property {Array} words The array of 32-bit words. * @property {number} sigBytes The number of significant bytes in this word array. */ var WordArray = C_lib.WordArray = Base.extend({ /** * Initializes a newly created word array. * * @param {Array} words (Optional) An array of 32-bit words. * @param {number} sigBytes (Optional) The number of significant bytes in the words. * * @example * * var wordArray = CryptoJS.lib.WordArray.create(); * var wordArray = CryptoJS.lib.WordArray.create([0x00010203, 0x04050607]); * var wordArray = CryptoJS.lib.WordArray.create([0x00010203, 0x04050607], 6); */ init: function(words, sigBytes) { words = this.words = words || []; if (sigBytes != undefined) { this.sigBytes = sigBytes; } else { this.sigBytes = words.length * 4; } }, /** * Converts this word array to a string. * * @param {Encoder} encoder (Optional) The encoding strategy to use. Default: CryptoJS.enc.Hex * * @return {string} The stringified word array. * * @example * * var string = wordArray + ''; * var string = wordArray.toString(); * var string = wordArray.toString(CryptoJS.enc.Utf8); */ toString: function(encoder) { return (encoder || Hex).stringify(this); }, /** * Concatenates a word array to this word array. * * @param {WordArray} wordArray The word array to append. * * @return {WordArray} This word array. * * @example * * wordArray1.concat(wordArray2); */ concat: function(wordArray) { // Shortcuts var thisWords = this.words; var thatWords = wordArray.words; var thisSigBytes = this.sigBytes; var thatSigBytes = wordArray.sigBytes; // Clamp excess bits this.clamp(); // Concat if (thisSigBytes % 4) { // Copy one byte at a time for (var i = 0; i < thatSigBytes; i++) { var thatByte = (thatWords[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff; thisWords[(thisSigBytes + i) >>> 2] |= thatByte << (24 - ((thisSigBytes + i) % 4) * 8); } } else { // Copy one word at a time for (var i = 0; i < thatSigBytes; i += 4) { thisWords[(thisSigBytes + i) >>> 2] = thatWord