├── geohash.jpg ├── show_all.jpg ├── geohash_tool.png ├── geohash_tool ├── babel.config.js ├── dist │ ├── favicon.ico │ ├── fonts │ │ ├── element-icons.732389de.ttf │ │ └── element-icons.535877f5.woff │ ├── css │ │ └── app.c5ef0284.css │ ├── index.html │ └── js │ │ └── app.45240b00.js ├── public │ ├── favicon.ico │ └── index.html ├── src │ ├── assets │ │ └── logo.png │ ├── main.js │ ├── App.vue │ └── components │ │ └── Main.vue ├── README.md ├── package.json └── vue.config.js ├── README.md ├── LICENSE ├── test.js ├── package.json ├── gaode_fence.html ├── show_all.html ├── show_area_fence.html ├── index.html ├── latlon-geohash.js └── jquery.min.js /geohash.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryan-Miao/geohash-visualization/HEAD/geohash.jpg -------------------------------------------------------------------------------- /show_all.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryan-Miao/geohash-visualization/HEAD/show_all.jpg -------------------------------------------------------------------------------- /geohash_tool.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryan-Miao/geohash-visualization/HEAD/geohash_tool.png -------------------------------------------------------------------------------- /geohash_tool/babel.config.js: -------------------------------------------------------------------------------- 1 | module.exports = { 2 | presets: [ 3 | '@vue/cli-plugin-babel/preset' 4 | ] 5 | } 6 | -------------------------------------------------------------------------------- /geohash_tool/dist/favicon.ico: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryan-Miao/geohash-visualization/HEAD/geohash_tool/dist/favicon.ico -------------------------------------------------------------------------------- /geohash_tool/public/favicon.ico: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryan-Miao/geohash-visualization/HEAD/geohash_tool/public/favicon.ico -------------------------------------------------------------------------------- /geohash_tool/src/assets/logo.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryan-Miao/geohash-visualization/HEAD/geohash_tool/src/assets/logo.png -------------------------------------------------------------------------------- /geohash_tool/dist/fonts/element-icons.732389de.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryan-Miao/geohash-visualization/HEAD/geohash_tool/dist/fonts/element-icons.732389de.ttf -------------------------------------------------------------------------------- /geohash_tool/dist/fonts/element-icons.535877f5.woff: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryan-Miao/geohash-visualization/HEAD/geohash_tool/dist/fonts/element-icons.535877f5.woff -------------------------------------------------------------------------------- /geohash_tool/src/main.js: -------------------------------------------------------------------------------- 1 | import Vue from 'vue' 2 | import App from './App.vue' 3 | 4 | import 'element-ui/lib/theme-chalk/index.css'; 5 | import ElementUI from 'element-ui'; 6 | Vue.use(ElementUI); 7 | 8 | Vue.config.productionTip = false 9 | 10 | new Vue({ 11 | render: h => h(App), 12 | }).$mount('#app') 13 | -------------------------------------------------------------------------------- /geohash_tool/README.md: -------------------------------------------------------------------------------- 1 | # geohash_tool 2 | 3 | 4 | ## Project setup 5 | ``` 6 | npm install 7 | ``` 8 | 9 | ### Compiles and hot-reloads for development 10 | ``` 11 | npm run serve 12 | ``` 13 | 14 | ### Compiles and minifies for production 15 | ``` 16 | npm run build 17 | ``` 18 | 19 | ### Lints and fixes files 20 | ``` 21 | npm run lint 22 | ``` 23 | 24 | ### Customize configuration 25 | See [Configuration Reference](https://cli.vuejs.org/config/). 26 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | geohash可视化显示 2 | ================ 3 | 4 | 经纬度获取9宫格覆盖： 5 | https://ryan-miao.gitee.io/geohash_tool/ 6 | 7 | ![](./geohash_tool.png) 8 | 9 | 10 | ![](./geohash.jpg) 11 | 12 | 13 | geohash坐标定位： 14 | https://ryan-miao.github.io/geohash-visualization/show_all.html 15 | 16 | 演示了中心点以及周围其他下一级的点的关系 17 | 18 | ![](./show_all.jpg) 19 | 20 | 21 | 22 | 更多查表的原理： https://zhuanlan.zhihu.com/p/39817945 23 | 24 | 本项目使用的geohash-js: https://github.com/chrisveness/latlon-geohash 25 | 26 | -------------------------------------------------------------------------------- /geohash_tool/src/App.vue: -------------------------------------------------------------------------------- 1 | 6 | 7 | 17 | 18 | 37 | -------------------------------------------------------------------------------- /geohash_tool/dist/css/app.c5ef0284.css: -------------------------------------------------------------------------------- 1 | .map_container{position:relative;width:100%;height:100%}.ui_container{position:absolute;top:10px;left:10px;z-index:10;background-color:#fff;border-radius:6px;box-shadow:0 10px 15px 0 rgba(136,141,152,.16);padding:4px 16px 4px 16px;width:250px}.mapStyle{position:relative;width:100%;height:100%}.option_input_label{text-align:left;line-height:40px;margin:0;color:#222;font-size:15px;font-weight:500}.option_input_content{float:left;width:60%}.option_radio_container{position:relative;width:100%;margin:20px 0 20px 0}.option_divider,.option_radio_style{position:relative}body,html{overflow:hidden;margin:0}#app,body,html{text-align:center;width:100%;height:100%}#app{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:#2c3e50;margin:0 auto} -------------------------------------------------------------------------------- /geohash_tool/public/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | geohash tools 9 | 10 | 11 | 12 | 15 |
16 | 17 | 18 | 19 | -------------------------------------------------------------------------------- /geohash_tool/dist/index.html: -------------------------------------------------------------------------------- 1 | geohash tools
-------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | The MIT License (MIT) 2 | 3 | Copyright (c) 2014 Chris Veness 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. -------------------------------------------------------------------------------- /geohash_tool/package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "geohash-tool", 3 | "version": "0.1.0", 4 | "private": true, 5 | "scripts": { 6 | "serve": "vue-cli-service serve", 7 | "build": "vue-cli-service build", 8 | "lint": "vue-cli-service lint" 9 | }, 10 | "dependencies": { 11 | "core-js": "^3.6.4", 12 | "latlon-geohash": "^2.0.0", 13 | "vue": "^2.6.11" 14 | }, 15 | "devDependencies": { 16 | "@vue/cli-plugin-babel": "~4.3.0", 17 | "@vue/cli-plugin-eslint": "~4.3.0", 18 | "@vue/cli-service": "~4.3.0", 19 | "babel-eslint": "^10.1.0", 20 | "element-ui": "^2.13.2", 21 | "eslint": "^6.7.2", 22 | "eslint-plugin-vue": "^6.2.2", 23 | "vue-template-compiler": "^2.6.11" 24 | }, 25 | "eslintConfig": { 26 | "root": true, 27 | "env": { 28 | "node": true 29 | }, 30 | "extends": [ 31 | "plugin:vue/essential", 32 | "eslint:recommended" 33 | ], 34 | "parserOptions": { 35 | "parser": "babel-eslint" 36 | }, 37 | "rules": { 38 | "no-unused-vars": "off", 39 | "no-console": "off" 40 | } 41 | }, 42 | "browserslist": [ 43 | "> 1%", 44 | "last 2 versions", 45 | "not dead" 46 | ] 47 | } 48 | -------------------------------------------------------------------------------- /test.js: -------------------------------------------------------------------------------- 1 | /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ 2 | /* Geohash Test Harness (c) Chris Veness 2014-2016 / MIT Licence */ 3 | /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ 4 | 'use strict' 5 | 6 | const chai = require('chai'); // BDD/TDD assertion library 7 | 8 | const Geohash = require('./latlon-geohash.js'); 9 | 10 | const should = chai.should(); 11 | 12 | describe('latlon-geohash', function() { 13 | 14 | it('encodes Jutland', function() { Geohash.encode(57.648, 10.410, 6).should.equal('u4pruy'); }); 15 | it('decodes Jutland', function() { Geohash.decode('u4pruy').should.deep.equal({ lat: 57.648, lon: 10.410 }); }); 16 | it('encodes Curitiba', function() { Geohash.encode(-25.38262, -49.26561, 8).should.equal('6gkzwgjz'); }); 17 | it('decodes Curitiba', function() { Geohash.decode('6gkzwgjz').should.deep.equal({ lat: -25.38262, lon: -49.26561 }); }); 18 | it('fetches neighbours', function() { Geohash.neighbours('ezzz').should.deep.equal({ n:'gbpb', ne:'u000', e:'spbp', se:'spbn', s:'ezzy', sw:'ezzw', w:'ezzx', nw:'gbp8' }); }); 19 | it('matches geohash.org', function() { Geohash.encode(37.25, 123.75, 12).should.equal('wy85bj0hbp21'); }); // (also PostGIS; thx Jussi Nieminen) 20 | 21 | }); 22 | 23 | /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ 24 | -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "latlon-geohash", 3 | "description": "Gustavo Niemeyer’s geocoding system", 4 | "author": "Chris Veness", 5 | "version": "1.1.0", 6 | "license": "MIT", 7 | "homepage": "http://www.movable-type.co.uk/scripts/geohash.html", 8 | "main": "latlon-geohash.js", 9 | "repository": { 10 | "type": "git", 11 | "url": "https://github.com/chrisveness/latlon-geohash" 12 | }, 13 | "keywords": [ "geohash", "geocode", "geolocation", "latitude", "longitude" ], 14 | "scripts": { 15 | "test": "mocha test.js", 16 | "lint": "eslint latlon-geohash.js" 17 | }, 18 | "devDependencies": { 19 | "chai": "^3.5.0", 20 | "eslint": "^3.5.0", 21 | "mocha": "^3.0.2" 22 | }, 23 | "eslintConfig": { 24 | "env": { 25 | "node": true, 26 | "mocha": true 27 | }, 28 | "extends": "eslint:recommended", 29 | "rules": { 30 | "array-bracket-spacing": [ "error", "always" ], 31 | "comma-dangle": [ "error", "always-multiline" ], 32 | "curly": [ "error", "multi-line" ], 33 | "indent": [ "error", 4, { "SwitchCase": 1 } ], 34 | "key-spacing": [ "error", { "align": "value" } ], 35 | "no-console": "warn", 36 | "no-redeclare": "warn", 37 | "no-shadow": "warn", 38 | "no-unused-vars": "warn", 39 | "object-curly-spacing": [ "error", "always" ], 40 | "quotes": [ "error", "single", "avoid-escape" ], 41 | "semi": [ "error", "always" ], 42 | "strict": [ "error", "global" ] 43 | } 44 | } 45 | } 46 | -------------------------------------------------------------------------------- /geohash_tool/vue.config.js: -------------------------------------------------------------------------------- 1 | const { BundleAnalyzerPlugin } = require('webpack-bundle-analyzer'); 2 | // vue.config.js 3 | module.exports = { 4 | // 选项... 5 | // 部署应用包时的基本 URL 6 | publicPath: process.env.NODE_ENV === 'production' ? '/' : '/', 7 | // 输出文件目录。默认dist 8 | outputDir: 'dist', 9 | // 放置生成的静态资源 (js、css、img、fonts) 的 (相对于 outputDir 的) 目录 10 | assetsDir: '', 11 | // 指定生成的 index.html 的输出路径 (相对于 outputDir)。也可以是一个绝对路径 12 | // indexPath: 'index.html', 13 | // 生成的静态资源在它们的文件名中包含 hash 以便更好的控制缓存 14 | // filenameHashing: true, 15 | // multi-page 模式下构建应用.多页面时配置 16 | // pages: {}, 17 | // 是否在开发环境下通过 eslint-loader 在每次保存时 lint 代码. 可选值：boolean | 'warning' | 'default' | 'error' 18 | // eslint-loader 是否在保存的时候检查 19 | lintOnSave: false, 20 | // 是否使用包含运行时编译器的 Vue 构建版本.为true时增加10kb 21 | runtimeCompiler: false, 22 | // 生产环境是否生成 sourceMap 文件 23 | productionSourceMap: false, 24 | // 修改webpack配置 25 | configureWebpack: (config) => { 26 | if (process.env.NODE_ENV == 'production') { 27 | config.mode = 'production' 28 | } else { 29 | config.mode = 'development' 30 | } 31 | // 不进行打包的模块 32 | config['externals'] = { 33 | 'AMap': 'AMap', 34 | // 'Loca': 'Loca', 35 | // 'AMapUI': 'AMapUI', 36 | // 'wx': 'wx' 37 | } 38 | config['plugins'].push(new BundleAnalyzerPlugin({ analyzerPort: 8919 })) 39 | }, 40 | // 修改webpack配置 41 | // chainWebpack: (config) => { 42 | // }, 43 | // 参考webpack-dev-serve 44 | devServer: { 45 | port: 9003 46 | } 47 | } -------------------------------------------------------------------------------- /gaode_fence.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 16 | 高德围栏 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 输入高德围栏： 26 | 27 | 28 | 29 | 30 | 标记geohash 31 | 显示geohash 9宫格 32 | 显示电子围栏 33 | 34 |
35 |
36 | 37 | 38 |
39 | 126 | 127 | 128 | -------------------------------------------------------------------------------- /show_all.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | geohash 10 | 11 | 12 | 13 | 14 | 15 | 16 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 标记geohash 44 | 显示geohash 9宫格 45 | 显示电子围栏 46 | 47 | 48 | 49 |
50 | 51 | 52 | 101 | 102 | 103 | 128 | 129 | 130 | 131 | -------------------------------------------------------------------------------- /show_area_fence.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 16 | 高德围栏 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 输入高德围栏： 26 | 27 | 28 | 29 | 30 | 标记geohash 31 | 显示geohash 9宫格 32 | 显示电子围栏 33 | 34 |
35 |
36 | 37 | 38 |
39 | 141 | 142 | 143 | -------------------------------------------------------------------------------- /geohash_tool/dist/js/app.45240b00.js: -------------------------------------------------------------------------------- 1 | (function(e){function t(t){for(var n,l,i=t[0],s=t[1],c=t[2],u=0,d=[];u 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | geohash 10 | 11 | 12 | 13 | 14 | 15 | 16 | 34 | 35 | 36 | 37 | 38 |
39 | 标记geohash和9宫格 40 | 标记geohash 41 | 显示geohash 9宫格 42 | 显示电子围栏 43 |
44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 |
52 | 53 | 54 | 157 | 158 | 159 | 185 | 186 | 187 | 188 | -------------------------------------------------------------------------------- /geohash_tool/src/components/Main.vue: -------------------------------------------------------------------------------- 1 | 47 | 48 | 191 | 192 | -------------------------------------------------------------------------------- /latlon-geohash.js: -------------------------------------------------------------------------------- 1 | /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ 2 | /* Geohash encoding/decoding and associated functions (c) Chris Veness 2014-2016 / MIT Licence */ 3 | /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ 4 | 5 | 'use strict'; 6 | 7 | 8 | /** 9 | * Geohash encode, decode, bounds, neighbours. 10 | * 11 | * @namespace 12 | */ 13 | var Geohash = {}; 14 | 15 | /* (Geohash-specific) Base32 map */ 16 | Geohash.base32 = '0123456789bcdefghjkmnpqrstuvwxyz'; 17 | 18 | /** 19 | * Encodes latitude/longitude to geohash, either to specified precision or to automatically 20 | * evaluated precision. 21 | * 22 | * @param {number} lat - Latitude in degrees. 23 | * @param {number} lon - Longitude in degrees. 24 | * @param {number} [precision] - Number of characters in resulting geohash. 25 | * @returns {string} Geohash of supplied latitude/longitude. 26 | * @throws Invalid geohash. 27 | * 28 | * @example 29 | * var geohash = Geohash.encode(52.205, 0.119, 7); // geohash: 'u120fxw' 30 | */ 31 | Geohash.encode = function(lat, lon, precision) { 32 | // infer precision? 33 | if (typeof precision == 'undefined') { 34 | // refine geohash until it matches precision of supplied lat/lon 35 | for (var p=1; p<=12; p++) { 36 | var hash = Geohash.encode(lat, lon, p); 37 | var posn = Geohash.decode(hash); 38 | if (posn.lat==lat && posn.lon==lon) return hash; 39 | } 40 | precision = 12; // set to maximum 41 | } 42 | 43 | lat = Number(lat); 44 | lon = Number(lon); 45 | precision = Number(precision); 46 | 47 | if (isNaN(lat) || isNaN(lon) || isNaN(precision)) throw new Error('Invalid geohash'); 48 | 49 | var idx = 0; // index into base32 map 50 | var bit = 0; // each char holds 5 bits 51 | var evenBit = true; 52 | var geohash = ''; 53 | 54 | var latMin = -90, latMax = 90; 55 | var lonMin = -180, lonMax = 180; 56 | 57 | while (geohash.length < precision) { 58 | if (evenBit) { 59 | // bisect E-W longitude 60 | var lonMid = (lonMin + lonMax) / 2; 61 | if (lon >= lonMid) { 62 | idx = idx*2 + 1; 63 | lonMin = lonMid; 64 | } else { 65 | idx = idx*2; 66 | lonMax = lonMid; 67 | } 68 | } else { 69 | // bisect N-S latitude 70 | var latMid = (latMin + latMax) / 2; 71 | if (lat >= latMid) { 72 | idx = idx*2 + 1; 73 | latMin = latMid; 74 | } else { 75 | idx = idx*2; 76 | latMax = latMid; 77 | } 78 | } 79 | evenBit = !evenBit; 80 | 81 | if (++bit == 5) { 82 | // 5 bits gives us a character: append it and start over 83 | geohash += Geohash.base32.charAt(idx); 84 | bit = 0; 85 | idx = 0; 86 | } 87 | } 88 | 89 | return geohash; 90 | }; 91 | 92 | 93 | /** 94 | * Decode geohash to latitude/longitude (location is approximate centre of geohash cell, 95 | * to reasonable precision). 96 | * 97 | * @param {string} geohash - Geohash string to be converted to latitude/longitude. 98 | * @returns {{lat:number, lon:number}} (Center of) geohashed location. 99 | * @throws Invalid geohash. 100 | * 101 | * @example 102 | * var latlon = Geohash.decode('u120fxw'); // latlon: { lat: 52.205, lon: 0.1188 } 103 | */ 104 | Geohash.decode = function(geohash) { 105 | 106 | var bounds = Geohash.bounds(geohash); // <-- the hard work 107 | // now just determine the centre of the cell... 108 | 109 | var latMin = bounds.sw.lat, lonMin = bounds.sw.lon; 110 | var latMax = bounds.ne.lat, lonMax = bounds.ne.lon; 111 | 112 | // cell centre 113 | var lat = (latMin + latMax)/2; 114 | var lon = (lonMin + lonMax)/2; 115 | 116 | // round to close to centre without excessive precision: ⌊2-log10(Δ°)⌋ decimal places 117 | lat = lat.toFixed(Math.floor(2-Math.log(latMax-latMin)/Math.LN10)); 118 | lon = lon.toFixed(Math.floor(2-Math.log(lonMax-lonMin)/Math.LN10)); 119 | 120 | return { lat: Number(lat), lon: Number(lon) }; 121 | }; 122 | 123 | 124 | /** 125 | * Returns SW/NE latitude/longitude bounds of specified geohash. 126 | * 127 | * @param {string} geohash - Cell that bounds are required of. 128 | * @returns {{sw: {lat: number, lon: number}, ne: {lat: number, lon: number}}} 129 | * @throws Invalid geohash. 130 | */ 131 | Geohash.bounds = function(geohash) { 132 | if (geohash.length === 0) throw new Error('Invalid geohash'); 133 | 134 | geohash = geohash.toLowerCase(); 135 | 136 | var evenBit = true; 137 | var latMin = -90, latMax = 90; 138 | var lonMin = -180, lonMax = 180; 139 | 140 | for (var i=0; i=0; n--) { 146 | var bitN = idx >> n & 1; 147 | if (evenBit) { 148 | // longitude 149 | var lonMid = (lonMin+lonMax) / 2; 150 | if (bitN == 1) { 151 | lonMin = lonMid; 152 | } else { 153 | lonMax = lonMid; 154 | } 155 | } else { 156 | // latitude 157 | var latMid = (latMin+latMax) / 2; 158 | if (bitN == 1) { 159 | latMin = latMid; 160 | } else { 161 | latMax = latMid; 162 | } 163 | } 164 | evenBit = !evenBit; 165 | } 166 | } 167 | 168 | var bounds = { 169 | sw: { lat: latMin, lon: lonMin }, 170 | ne: { lat: latMax, lon: lonMax }, 171 | }; 172 | 173 | return bounds; 174 | }; 175 | 176 | 177 | /** 178 | * Determines adjacent cell in given direction. 179 | * 180 | * @param geohash - Cell to which adjacent cell is required. 181 | * @param direction - Direction from geohash (N/S/E/W). 182 | * @returns {string} Geocode of adjacent cell. 183 | * @throws Invalid geohash. 184 | */ 185 | Geohash.adjacent = function(geohash, direction) { 186 | // based on github.com/davetroy/geohash-js 187 | 188 | geohash = geohash.toLowerCase(); 189 | direction = direction.toLowerCase(); 190 | 191 | if (geohash.length === 0) throw new Error('Invalid geohash'); 192 | if ('nsew'.indexOf(direction) == -1) throw new Error('Invalid direction'); 193 | 194 | var neighbour = { 195 | n: [ 'p0r21436x8zb9dcf5h7kjnmqesgutwvy', 'bc01fg45238967deuvhjyznpkmstqrwx' ], 196 | s: [ '14365h7k9dcfesgujnmqp0r2twvyx8zb', '238967debc01fg45kmstqrwxuvhjyznp' ], 197 | e: [ 'bc01fg45238967deuvhjyznpkmstqrwx', 'p0r21436x8zb9dcf5h7kjnmqesgutwvy' ], 198 | w: [ '238967debc01fg45kmstqrwxuvhjyznp', '14365h7k9dcfesgujnmqp0r2twvyx8zb' ], 199 | }; 200 | var border = { 201 | n: [ 'prxz', 'bcfguvyz' ], 202 | s: [ '028b', '0145hjnp' ], 203 | e: [ 'bcfguvyz', 'prxz' ], 204 | w: [ '0145hjnp', '028b' ], 205 | }; 206 | 207 | var lastCh = geohash.slice(-1); // last character of hash 208 | var parent = geohash.slice(0, -1); // hash without last character 209 | 210 | var type = geohash.length % 2; 211 | 212 | // check for edge-cases which don't share common prefix 213 | if (border[direction][type].indexOf(lastCh) != -1 && parent !== '') { 214 | parent = Geohash.adjacent(parent, direction); 215 | } 216 | 217 | // append letter for direction to parent 218 | return parent + Geohash.base32.charAt(neighbour[direction][type].indexOf(lastCh)); 219 | }; 220 | 221 | 222 | /** 223 | * Returns all 8 adjacent cells to specified geohash. 224 | * 225 | * @param {string} geohash - Geohash neighbours are required of. 226 | * @returns {{n,ne,e,se,s,sw,w,nw: string}} 227 | * @throws Invalid geohash. 228 | */ 229 | Geohash.neighbours = function(geohash) { 230 | return { 231 | 'n': Geohash.adjacent(geohash, 'n'), 232 | 'ne': Geohash.adjacent(Geohash.adjacent(geohash, 'n'), 'e'), 233 | 'e': Geohash.adjacent(geohash, 'e'), 234 | 'se': Geohash.adjacent(Geohash.adjacent(geohash, 's'), 'e'), 235 | 's': Geohash.adjacent(geohash, 's'), 236 | 'sw': Geohash.adjacent(Geohash.adjacent(geohash, 's'), 'w'), 237 | 'w': Geohash.adjacent(geohash, 'w'), 238 | 'nw': Geohash.adjacent(Geohash.adjacent(geohash, 'n'), 'w'), 239 | }; 240 | }; 241 | 242 | 243 | /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ 244 | if (typeof module != 'undefined' && module.exports) module.exports = Geohash; // CommonJS, node.js 245 | -------------------------------------------------------------------------------- /jquery.min.js: -------------------------------------------------------------------------------- 1 | /*! jQuery v3.3.1 | (c) JS Foundation and other contributors | jquery.org/license */ 2 | !function(e,t){"use strict";"object"==typeof module&&"object"==typeof module.exports?module.exports=e.document?t(e,!0):function(e){if(!e.document)throw new Error("jQuery requires a window with a document");return t(e)}:t(e)}("undefined"!=typeof window?window:this,function(e,t){"use strict";var n=[],r=e.document,i=Object.getPrototypeOf,o=n.slice,a=n.concat,s=n.push,u=n.indexOf,l={},c=l.toString,f=l.hasOwnProperty,p=f.toString,d=p.call(Object),h={},g=function e(t){return"function"==typeof t&&"number"!=typeof t.nodeType},y=function 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