├── .browserslistrc ├── .gitignore ├── README.md ├── babel.config.js ├── dist ├── css │ ├── app.85efa0d5.css │ ├── chunk-vendors.02d743b0.css │ ├── flow~geotiff~leafletEcharts~points.a5f0d01f.css │ └── points.3d02ecf1.css ├── favicon.ico ├── index.html ├── js │ ├── app.be980611.js │ ├── app.be980611.js.map │ ├── chunk-vendors.76327266.js │ ├── chunk-vendors.76327266.js.map │ ├── flow.9f83f499.js │ ├── flow.9f83f499.js.map │ ├── flow~geotiff~leafletEcharts~points.cb32dc6f.js │ ├── flow~geotiff~leafletEcharts~points.cb32dc6f.js.map │ ├── geotiff.7d3050c9.js │ ├── geotiff.7d3050c9.js.map │ ├── geotiff~leafletEcharts.aa46c8f5.js │ ├── geotiff~leafletEcharts.aa46c8f5.js.map │ ├── leafletEcharts.1d4d598f.js │ ├── leafletEcharts.1d4d598f.js.map │ ├── points.ff29ca1c.js │ └── points.ff29ca1c.js.map ├── wrfout-warp.tif └── wrfout.tif ├── package-lock.json ├── package.json ├── postcss.config.js ├── public ├── favicon.ico ├── index.html ├── wrfout-warp.tif └── wrfout.tif ├── src ├── App.vue ├── assets │ ├── css │ │ ├── main.less │ │ └── reset.less │ ├── js │ │ ├── flow.js │ │ ├── points.js │ │ ├── staticWind.js │ │ ├── stations.js │ │ └── wind.js │ └── logo.png ├── components │ ├── ButtonGroup.vue │ ├── Description.vue │ ├── FlowLayer.vue │ ├── LinesLayer.vue │ ├── MarkerClusterLayer.vue │ ├── NavList.vue │ ├── ScatterLayer.vue │ ├── StaticFlowLayer.vue │ ├── TiffToCanvasLayer.vue │ ├── TiffToGeojsonLayer.vue │ ├── TiffToGridLayer.vue │ ├── TiffToImageLayer.vue │ └── WindyLayer.vue ├── main.js ├── plugins │ ├── func.wind.js │ ├── georaster-layer-for-leaflet-interpotations.js │ ├── leaflet-echarts.js │ ├── leaflet-velocity.js │ ├── leaflet.canvasLayer.js │ └── ocean.weather.wind.js ├── router.js └── views │ ├── EchartsMapLayer.vue │ ├── FlowMapLayer.vue │ ├── PointsMapLayer.vue │ └── TiffMapLayer.vue └── vue.config.js /.browserslistrc: -------------------------------------------------------------------------------- 1 | > 1% 2 | last 2 versions 3 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | .DS_Store 2 | node_modules 3 | 4 | # local env files 5 | .env.local 6 | .env.*.local 7 | 8 | # Log files 9 | npm-debug.log* 10 | yarn-debug.log* 11 | yarn-error.log* 12 | 13 | # Editor directories and files 14 | .idea 15 | .vscode 16 | *.suo 17 | *.ntvs* 18 | *.njsproj 19 | *.sln 20 | *.sw? 21 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # leaflet-learn 2 | 3 | ## Example 4 | [demo](https://zjfcool.github.io/leaflet-learn/dist/) 5 | 6 | ## Project setup 7 | ``` 8 | npm install 9 | ``` 10 | 11 | ### Compiles and hot-reloads for development 12 | ``` 13 | npm run serve 14 | ``` 15 | 16 | ### Compiles and minifies for production 17 | ``` 18 | npm run build 19 | ``` 20 | 21 | ### geotiff文件在leaflet中的几种渲染方式 22 | 23 | 1. 怎样解析一个geotiff文件 24 | 25 | 26 | 解析geotiff文件我们需要用到开源的库[geotiff](https://github.com/geotiffjs/geotiff.js),具体用法如下 27 | 28 | ```javscript 29 | 30 | import * as GeoTIFF from 'geotiff' 31 | 32 | const tiff= await GeoTIFF.fromArrayBuffer(buffer); 33 | let image = await tiff.getImage(); 34 | this.tiffWidth = image.getWidth(); 35 | this.tiffHeight = image.getHeight(); 36 | let rasters = await image.readRasters(); 37 | let tiepoint = image.getTiePoints()[0]; 38 | let pixelScale = image.getFileDirectory().ModelPixelScale; 39 | 40 | this.geoTransform = [ 41 | tiepoint.x, 42 | pixelScale[0], 43 | 0, 44 | tiepoint.y, 45 | 0, 46 | -1 * pixelScale[1] 47 | ]; 48 | 49 | 50 | this.tempData = new Array(this.tiffHeight); 51 | for (let j = 0; j < this.tiffHeight; j++) { 52 | this.tempData[j] = new Array(this.tiffWidth); 53 | for (let i = 0; i < this.tiffWidth; i++) { 54 | this.tempData[j][i] = rasters[0][i + j * this.tiffWidth]; 55 | } 56 | } 57 | 58 | ``` 59 | 60 | 2. 将解析完的tiff文件转为等值面 [示例代码](https://github.com/zjfcool/leaflet-learn/blob/master/src/components/TiffToGeojsonLayer.vue) 61 | ``` 62 | 63 | import {isobands} from "raster-marching-squares"; 64 | 65 | const intervalsSpd = [-1,0,1,2,3,4,5]; 66 | this.geojson_data = isobands( 67 | this.tempData, 68 | this.geoTransform, 69 | intervalsSpd 70 | ); 71 | 72 | import 'leaflet.vectorgrid' 73 | 74 | this.layer = L.vectorGrid.slicer(this.geojson_data,{ 75 | rendererFactory: L.canvas.tile, 76 | interactive: true, 77 | vectorTileLayerStyles:{ 78 | sliced:this.geojsonStyle 79 | }, 80 | }).addTo(this.map); 81 | 82 | ``` 83 | 84 | 3. 将tiff文件转化为图片渲染到地图中 [示例代码](https://github.com/zjfcool/leaflet-learn/blob/master/src/components/TiffToImageLayer.vue) 85 | 86 | ``` 87 | 88 | 89 | const bounds = image.getBoundingBox(); 90 | const canvas = document.createElement("canvas"); 91 | const rightBottomPixel = this.map.latLngToContainerPoint([bounds[1],bounds[2]]) 92 | const leftTopPixel = this.map.latLngToContainerPoint([bounds[3],bounds[0]]); 93 | const tileWidth = rightBottomPixel.x - leftTopPixel.x, 94 | tileHeight = rightBottomPixel.y - leftTopPixel.y; 95 | canvas.width = tileWidth; 96 | canvas.height = tileHeight; 97 | const context = canvas.getContext("2d"); 98 | const id = context.createImageData(tileWidth, tileHeight); 99 | const canvasData = id.data; 100 | let scale = chroma 101 | .scale(this.colors) 102 | .domain(this.ranges); 103 | for (let y = 0; y < tileHeight; y++) { 104 | for (let x = 0; x < tileWidth; x++) { 105 | const latlng = this.map.layerPointToLatLng([leftTopPixel.x+x,leftTopPixel.y+y]) 106 | const px = ( latlng.lng - geoTransform[0])/geoTransform[1] 107 | const py = ( latlng.lat - geoTransform[3])/geoTransform[5] 108 | if(Math.floor(px) >= 0 && Math.floor(py) >= 0){ 109 | // console.log(Math.floor(px),Math.floor(py)) 110 | let rgba = scale(tempData[Math.floor(py)][Math.floor(px)]).rgba(); 111 | if(tempData[Math.floor(py)][Math.floor(px)] == this.noDataValue) rgba=[0,0,0,0]; 112 | const index = (y * tileWidth + x) * 4; 113 | canvasData[index + 0] = rgba[0]; 114 | canvasData[index + 1] = rgba[1]; 115 | canvasData[index + 2] = rgba[2]; 116 | canvasData[index + 3] = rgba[3] * 255; 117 | } 118 | 119 | } 120 | } 121 | 122 | L.imageOverlay( 123 | canvas.toDataURL(), 124 | [[bounds[1], bounds[0]], [bounds[3], bounds[2]]], 125 | { 126 | opacity: 0.3 127 | } 128 | ).addTo(this.map); 129 | 130 | 131 | ``` 132 | 133 | ### leaflet与echarts结合 134 | 135 | 1. 风场[示例代码](https://github.com/zjfcool/leaflet-learn/blob/master/src/components/WindyLayer.vue) 136 | 2. 散点[示例代码](https://github.com/zjfcool/leaflet-learn/blob/master/src/components/ScatterLayer.vue) 137 | 138 | ### 风场 139 | 140 | 1. 动态风场，使用插件[leaflet-velocity](https://github.com/zjfcool/leaflet-learn/blob/master/src/plugins/leaflet-velocity.js),[示例代码](https://github.com/zjfcool/leaflet-learn/blob/master/src/components/FlowLayer.vue) 141 | 142 | 2. 静态风场[示例代码](https://github.com/zjfcool/leaflet-learn/blob/master/src/components/StaticFlowLayer.vue) 143 | 144 | ### 散点聚合 145 | 146 | 1. 聚合插件[leaflet.markercluster](https://github.com/Leaflet/Leaflet.markercluster),[示例代码](https://github.com/zjfcool/leaflet-learn/blob/master/src/components/MarkerClusterLayer.vue) -------------------------------------------------------------------------------- /babel.config.js: -------------------------------------------------------------------------------- 1 | module.exports = { 2 | presets: [ 3 | '@vue/app' 4 | ] 5 | } 6 | -------------------------------------------------------------------------------- /dist/css/app.85efa0d5.css: -------------------------------------------------------------------------------- 1 | .nav-list[data-v-14f9e054]{position:absolute;top:50%;left:0;-webkit-transform:translateY(-50%);transform:translateY(-50%);z-index:9999}.nav-list li+li[data-v-14f9e054]{border-bottom:1px solid hsla(0,0%,100%,.2)}.nav-list 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-------------------------------------------------------------------------------- /dist/js/app.be980611.js: -------------------------------------------------------------------------------- 1 | (function(e){function t(t){for(var r,o,l=t[0],i=t[1],c=t[2],s=0,u=[];s\r\n \r\n\r\n\r\n\r\n\r\n","import mod from \"-!../../node_modules/cache-loader/dist/cjs.js??ref--12-0!../../node_modules/thread-loader/dist/cjs.js!../../node_modules/babel-loader/lib/index.js!../../node_modules/cache-loader/dist/cjs.js??ref--0-0!../../node_modules/vue-loader/lib/index.js??vue-loader-options!./NavList.vue?vue&type=script&lang=js&\"; export default mod; export * from \"-!../../node_modules/cache-loader/dist/cjs.js??ref--12-0!../../node_modules/thread-loader/dist/cjs.js!../../node_modules/babel-loader/lib/index.js!../../node_modules/cache-loader/dist/cjs.js??ref--0-0!../../node_modules/vue-loader/lib/index.js??vue-loader-options!./NavList.vue?vue&type=script&lang=js&\"","import { render, staticRenderFns } from \"./NavList.vue?vue&type=template&id=14f9e054&scoped=true&\"\nimport script from \"./NavList.vue?vue&type=script&lang=js&\"\nexport * from \"./NavList.vue?vue&type=script&lang=js&\"\nimport style0 from \"./NavList.vue?vue&type=style&index=0&id=14f9e054&lang=less&scoped=true&\"\n\n\n/* normalize component */\nimport normalizer from \"!../../node_modules/vue-loader/lib/runtime/componentNormalizer.js\"\nvar component = normalizer(\n script,\n render,\n staticRenderFns,\n false,\n null,\n \"14f9e054\",\n null\n \n)\n\nexport default component.exports","\n\n\n","import mod from \"-!../node_modules/cache-loader/dist/cjs.js??ref--12-0!../node_modules/thread-loader/dist/cjs.js!../node_modules/babel-loader/lib/index.js!../node_modules/cache-loader/dist/cjs.js??ref--0-0!../node_modules/vue-loader/lib/index.js??vue-loader-options!./App.vue?vue&type=script&lang=js&\"; export default mod; export * from \"-!../node_modules/cache-loader/dist/cjs.js??ref--12-0!../node_modules/thread-loader/dist/cjs.js!../node_modules/babel-loader/lib/index.js!../node_modules/cache-loader/dist/cjs.js??ref--0-0!../node_modules/vue-loader/lib/index.js??vue-loader-options!./App.vue?vue&type=script&lang=js&\"","import { render, staticRenderFns } from \"./App.vue?vue&type=template&id=6a122ec1&\"\nimport script from \"./App.vue?vue&type=script&lang=js&\"\nexport * from \"./App.vue?vue&type=script&lang=js&\"\nimport style0 from \"./App.vue?vue&type=style&index=0&lang=less&\"\n\n\n/* normalize component */\nimport normalizer from \"!../node_modules/vue-loader/lib/runtime/componentNormalizer.js\"\nvar component = normalizer(\n script,\n render,\n staticRenderFns,\n false,\n null,\n null,\n null\n \n)\n\nexport default component.exports","import Vue from 'vue'\nimport Router from 'vue-router'\n\nVue.use(Router)\n\nexport default new Router({\n routes: [\n {\n path: '/',\n name: 'home',\n redirect: {\n name:'geotiff'\n },\n },\n {\n path: '/geotiff',\n name: 'geotiff',\n component: () => import(/* webpackChunkName: \"geotiff\" */ './views/TiffMapLayer.vue')\n },\n {\n path: '/ec',\n name: 'leafletEcharts',\n component: () => import(/* webpackChunkName: \"leafletEcharts\" */ './views/EchartsMapLayer.vue')\n },\n {\n path: '/flow',\n name: 'flow',\n component: () => import(/* webpackChunkName: \"flow\" */ './views/FlowMapLayer.vue')\n },\n {\n path: '/points',\n name: 'points',\n component: () => import(/* webpackChunkName: \"points\" */ './views/PointsMapLayer.vue')\n },\n ]\n})\n","import Vue from 'vue'\r\nimport App from './App.vue'\r\nimport router from './router'\r\nimport { Icon } from 'leaflet'\r\nimport 'leaflet/dist/leaflet.css'\r\ndelete Icon.Default.prototype._getIconUrl;\r\nimport '@/assets/css/main.less';\r\n\r\nIcon.Default.mergeOptions({\r\n iconRetinaUrl: require('leaflet/dist/images/marker-icon-2x.png'),\r\n iconUrl: require('leaflet/dist/images/marker-icon.png'),\r\n shadowUrl: require('leaflet/dist/images/marker-shadow.png')\r\n});\r\n\r\nVue.config.productionTip = false\r\n\r\nnew Vue({\r\n router,\r\n render: h => h(App)\r\n}).$mount('#app')\r\n","import mod from \"-!../node_modules/mini-css-extract-plugin/dist/loader.js??ref--10-oneOf-1-0!../node_modules/css-loader/index.js??ref--10-oneOf-1-1!../node_modules/vue-loader/lib/loaders/stylePostLoader.js!../node_modules/postcss-loader/src/index.js??ref--10-oneOf-1-2!../node_modules/less-loader/dist/cjs.js??ref--10-oneOf-1-3!../node_modules/cache-loader/dist/cjs.js??ref--0-0!../node_modules/vue-loader/lib/index.js??vue-loader-options!./App.vue?vue&type=style&index=0&lang=less&\"; export default mod; export * from \"-!../node_modules/mini-css-extract-plugin/dist/loader.js??ref--10-oneOf-1-0!../node_modules/css-loader/index.js??ref--10-oneOf-1-1!../node_modules/vue-loader/lib/loaders/stylePostLoader.js!../node_modules/postcss-loader/src/index.js??ref--10-oneOf-1-2!../node_modules/less-loader/dist/cjs.js??ref--10-oneOf-1-3!../node_modules/cache-loader/dist/cjs.js??ref--0-0!../node_modules/vue-loader/lib/index.js??vue-loader-options!./App.vue?vue&type=style&index=0&lang=less&\"","import mod from 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10.4689045, 13.813523, 15.716641, 14.600424, 14.254697, 11.134397, 6.8803782, 4.6715603, 2.032635], 26 | "header": { 27 | "dx": 0.5, 28 | "dy": 0.5, 29 | "gridDefinitionTemplateName": "Latitude_Longitude", 30 | "gridUnits": "degrees", 31 | "la1": 54, 32 | "la2": 38, 33 | "lo1": 118, 34 | "lo2": 136, 35 | "meta": { 36 | "date": "2019-08-21-10-00-00" 37 | }, 38 | "numberPoints": 1152, 39 | "nx": 36, 40 | "ny": 32, 41 | "parameterCategory": 2, 42 | "parameterNumber": 3, 43 | "parameterNumberName": "V-component_of_wind", 44 | "parameterUnit": "m.s-1", 45 | "surface2Type": 255 46 | } 47 | }] -------------------------------------------------------------------------------- /src/assets/js/points.js: -------------------------------------------------------------------------------- 1 | export default [{ 2 | "name": "海门", 3 | "value": [121.15, 31.89, 9] 4 | }, { 5 | "name": "鄂尔多斯", 6 | "value": [109.781327, 39.608266, 12] 7 | }, { 8 | "name": "招远", 9 | "value": [120.38, 37.35, 12] 10 | }, { 11 | "name": "舟山", 12 | "value": [122.207216, 29.985295, 12] 13 | }, { 14 | "name": "齐齐哈尔", 15 | "value": [123.97, 47.33, 14] 16 | }, { 17 | "name": "盐城", 18 | "value": [120.13, 33.38, 15] 19 | }, { 20 | "name": "赤峰", 21 | "value": [118.87, 42.28, 16] 22 | }, { 23 | "name": "青岛", 24 | "value": [120.33, 36.07, 18] 25 | }, { 26 | "name": "乳山", 27 | "value": [121.52, 36.89, 18] 28 | }, { 29 | "name": "金昌", 30 | "value": [102.188043, 38.520089, 19] 31 | }, { 32 | "name": "泉州", 33 | "value": [118.58, 24.93, 21] 34 | }, { 35 | "name": "莱西", 36 | "value": [120.53, 36.86, 21] 37 | }, { 38 | "name": "日照", 39 | "value": [119.46, 35.42, 21] 40 | }, { 41 | "name": "胶南", 42 | "value": [119.97, 35.88, 22] 43 | }, { 44 | "name": "南通", 45 | "value": [121.05, 32.08, 23] 46 | }, { 47 | "name": "拉萨", 48 | "value": [91.11, 29.97, 24] 49 | }, { 50 | "name": "云浮", 51 | "value": [112.02, 22.93, 24] 52 | }, { 53 | "name": "梅州", 54 | "value": [116.1, 24.55, 25] 55 | }, { 56 | "name": "文登", 57 | "value": [122.05, 37.2, 25] 58 | }, { 59 | "name": "上海", 60 | "value": [121.48, 31.22, 25] 61 | }, { 62 | "name": "攀枝花", 63 | "value": [101.718637, 26.582347, 25] 64 | }, { 65 | "name": "威海", 66 | "value": [122.1, 37.5, 25] 67 | }, { 68 | "name": "承德", 69 | "value": [117.93, 40.97, 25] 70 | }, { 71 | "name": "厦门", 72 | "value": [118.1, 24.46, 26] 73 | }, { 74 | "name": "汕尾", 75 | "value": [115.375279, 22.786211, 26] 76 | }, { 77 | "name": "潮州", 78 | "value": [116.63, 23.68, 26] 79 | }, { 80 | "name": "丹东", 81 | "value": [124.37, 40.13, 27] 82 | }, { 83 | "name": "太仓", 84 | "value": [121.1, 31.45, 27] 85 | }, { 86 | "name": "曲靖", 87 | "value": [103.79, 25.51, 27] 88 | }, { 89 | "name": "烟台", 90 | "value": [121.39, 37.52, 28] 91 | }, { 92 | "name": "福州", 93 | "value": [119.3, 26.08, 29] 94 | }, { 95 | "name": "瓦房店", 96 | "value": [121.979603, 39.627114, 30] 97 | }, { 98 | "name": "即墨", 99 | "value": [120.45, 36.38, 30] 100 | }, { 101 | "name": "抚顺", 102 | "value": [123.97, 41.97, 31] 103 | }, { 104 | "name": "玉溪", 105 | "value": [102.52, 24.35, 31] 106 | }, { 107 | "name": "张家口", 108 | "value": [114.87, 40.82, 31] 109 | }, { 110 | "name": "阳泉", 111 | "value": [113.57, 37.85, 31] 112 | }, { 113 | "name": "莱州", 114 | "value": [119.942327, 37.177017, 32] 115 | }, { 116 | "name": "湖州", 117 | "value": [120.1, 30.86, 32] 118 | }, { 119 | "name": "汕头", 120 | "value": [116.69, 23.39, 32] 121 | }, { 122 | "name": "昆山", 123 | "value": [120.95, 31.39, 33] 124 | }, { 125 | "name": "宁波", 126 | "value": [121.56, 29.86, 33] 127 | }, { 128 | "name": "湛江", 129 | "value": [110.359377, 21.270708, 33] 130 | }, { 131 | "name": "揭阳", 132 | "value": [116.35, 23.55, 34] 133 | }, { 134 | "name": "荣成", 135 | "value": [122.41, 37.16, 34] 136 | }, { 137 | "name": "连云港", 138 | "value": [119.16, 34.59, 35] 139 | }, { 140 | "name": "葫芦岛", 141 | "value": [120.836932, 40.711052, 35] 142 | }, { 143 | "name": "常熟", 144 | "value": [120.74, 31.64, 36] 145 | }, { 146 | "name": "东莞", 147 | "value": [113.75, 23.04, 36] 148 | }, { 149 | "name": "河源", 150 | "value": [114.68, 23.73, 36] 151 | }, { 152 | "name": "淮安", 153 | "value": [119.15, 33.5, 36] 154 | }, { 155 | "name": "泰州", 156 | "value": [119.9, 32.49, 36] 157 | }, { 158 | "name": "南宁", 159 | "value": [108.33, 22.84, 37] 160 | }, { 161 | "name": "营口", 162 | "value": [122.18, 40.65, 37] 163 | }, { 164 | "name": "惠州", 165 | "value": [114.4, 23.09, 37] 166 | }, { 167 | "name": "江阴", 168 | "value": [120.26, 31.91, 37] 169 | }, { 170 | "name": "蓬莱", 171 | "value": [120.75, 37.8, 37] 172 | }, { 173 | "name": "韶关", 174 | "value": [113.62, 24.84, 38] 175 | }, { 176 | "name": "嘉峪关", 177 | "value": [98.289152, 39.77313, 38] 178 | }, { 179 | "name": "广州", 180 | "value": [113.23, 23.16, 38] 181 | }, { 182 | "name": "延安", 183 | "value": [109.47, 36.6, 38] 184 | }, { 185 | "name": "太原", 186 | "value": [112.53, 37.87, 39] 187 | }, { 188 | "name": "清远", 189 | "value": [113.01, 23.7, 39] 190 | }, { 191 | "name": "中山", 192 | "value": [113.38, 22.52, 39] 193 | }, { 194 | "name": "昆明", 195 | "value": [102.73, 25.04, 39] 196 | }, { 197 | "name": "寿光", 198 | "value": [118.73, 36.86, 40] 199 | }, { 200 | "name": "盘锦", 201 | "value": [122.070714, 41.119997, 40] 202 | }, { 203 | "name": "长治", 204 | "value": [113.08, 36.18, 41] 205 | }, { 206 | "name": "深圳", 207 | "value": [114.07, 22.62, 41] 208 | }, { 209 | "name": "珠海", 210 | "value": [113.52, 22.3, 42] 211 | }, { 212 | "name": "宿迁", 213 | "value": [118.3, 33.96, 43] 214 | }, { 215 | "name": "咸阳", 216 | "value": [108.72, 34.36, 43] 217 | }, { 218 | "name": "铜川", 219 | "value": [109.11, 35.09, 44] 220 | }, { 221 | "name": "平度", 222 | "value": [119.97, 36.77, 44] 223 | }, { 224 | "name": "佛山", 225 | "value": [113.11, 23.05, 44] 226 | }, { 227 | "name": "海口", 228 | "value": [110.35, 20.02, 44] 229 | }, { 230 | "name": "江门", 231 | "value": [113.06, 22.61, 45] 232 | }, { 233 | "name": "章丘", 234 | "value": [117.53, 36.72, 45] 235 | }, { 236 | "name": "肇庆", 237 | "value": [112.44, 23.05, 46] 238 | }, { 239 | "name": "大连", 240 | "value": [121.62, 38.92, 47] 241 | }, { 242 | "name": "临汾", 243 | "value": [111.5, 36.08, 47] 244 | }, { 245 | "name": "吴江", 246 | "value": [120.63, 31.16, 47] 247 | }, { 248 | "name": "石嘴山", 249 | "value": [106.39, 39.04, 49] 250 | }, { 251 | "name": "沈阳", 252 | "value": [123.38, 41.8, 50] 253 | }, { 254 | "name": "苏州", 255 | "value": [120.62, 31.32, 50] 256 | }, { 257 | "name": "茂名", 258 | "value": [110.88, 21.68, 50] 259 | }, { 260 | "name": "嘉兴", 261 | "value": [120.76, 30.77, 51] 262 | }, { 263 | "name": "长春", 264 | "value": [125.35, 43.88, 51] 265 | }, { 266 | "name": "胶州", 267 | "value": [120.03336, 36.264622, 52] 268 | }, { 269 | "name": "银川", 270 | "value": [106.27, 38.47, 52] 271 | }, { 272 | "name": "张家港", 273 | "value": [120.555821, 31.875428, 52] 274 | }, { 275 | "name": "三门峡", 276 | "value": [111.19, 34.76, 53] 277 | }, { 278 | "name": "锦州", 279 | "value": [121.15, 41.13, 54] 280 | }, { 281 | "name": "南昌", 282 | "value": [115.89, 28.68, 54] 283 | }, { 284 | "name": "柳州", 285 | "value": [109.4, 24.33, 54] 286 | }, { 287 | "name": "三亚", 288 | "value": [109.511909, 18.252847, 54] 289 | }, { 290 | "name": "自贡", 291 | "value": [104.778442, 29.33903, 56] 292 | }, { 293 | "name": "吉林", 294 | "value": [126.57, 43.87, 56] 295 | }, { 296 | "name": "阳江", 297 | "value": [111.95, 21.85, 57] 298 | }, { 299 | "name": "泸州", 300 | "value": [105.39, 28.91, 57] 301 | }, { 302 | "name": "西宁", 303 | "value": [101.74, 36.56, 57] 304 | }, { 305 | "name": "宜宾", 306 | "value": [104.56, 29.77, 58] 307 | }, { 308 | "name": "呼和浩特", 309 | "value": [111.65, 40.82, 58] 310 | }, { 311 | "name": "成都", 312 | "value": [104.06, 30.67, 58] 313 | }, { 314 | "name": "大同", 315 | "value": [113.3, 40.12, 58] 316 | }, { 317 | "name": "镇江", 318 | "value": [119.44, 32.2, 59] 319 | }, { 320 | "name": "桂林", 321 | "value": [110.28, 25.29, 59] 322 | }, { 323 | "name": "张家界", 324 | "value": [110.479191, 29.117096, 59] 325 | }, { 326 | "name": "宜兴", 327 | "value": [119.82, 31.36, 59] 328 | }, { 329 | "name": "北海", 330 | "value": [109.12, 21.49, 60] 331 | }, { 332 | "name": "西安", 333 | "value": [108.95, 34.27, 61] 334 | }, { 335 | "name": "金坛", 336 | "value": [119.56, 31.74, 62] 337 | }, { 338 | "name": "东营", 339 | "value": [118.49, 37.46, 62] 340 | }, { 341 | "name": "牡丹江", 342 | "value": [129.58, 44.6, 63] 343 | }, { 344 | "name": "遵义", 345 | "value": [106.9, 27.7, 63] 346 | }, { 347 | "name": "绍兴", 348 | "value": [120.58, 30.01, 63] 349 | }, { 350 | "name": "扬州", 351 | "value": [119.42, 32.39, 64] 352 | }, { 353 | "name": "常州", 354 | "value": [119.95, 31.79, 64] 355 | }, { 356 | "name": "潍坊", 357 | "value": [119.1, 36.62, 65] 358 | }, { 359 | "name": "重庆", 360 | "value": [106.54, 29.59, 66] 361 | }, { 362 | "name": "台州", 363 | "value": [121.420757, 28.656386, 67] 364 | }, { 365 | "name": "南京", 366 | "value": [118.78, 32.04, 67] 367 | }, { 368 | "name": "滨州", 369 | "value": [118.03, 37.36, 70] 370 | }, { 371 | "name": "贵阳", 372 | "value": [106.71, 26.57, 71] 373 | }, { 374 | "name": "无锡", 375 | "value": [120.29, 31.59, 71] 376 | }, { 377 | "name": "本溪", 378 | "value": [123.73, 41.3, 71] 379 | }, { 380 | "name": "克拉玛依", 381 | "value": [84.77, 45.59, 72] 382 | }, { 383 | "name": "渭南", 384 | "value": [109.5, 34.52, 72] 385 | }, { 386 | "name": "马鞍山", 387 | "value": [118.48, 31.56, 72] 388 | }, { 389 | "name": "宝鸡", 390 | "value": [107.15, 34.38, 72] 391 | }, { 392 | "name": "焦作", 393 | "value": [113.21, 35.24, 75] 394 | }, { 395 | "name": "句容", 396 | "value": [119.16, 31.95, 75] 397 | }, { 398 | "name": "北京", 399 | "value": [116.46, 39.92, 79] 400 | }, { 401 | "name": "徐州", 402 | "value": [117.2, 34.26, 79] 403 | }, { 404 | "name": "衡水", 405 | "value": [115.72, 37.72, 80] 406 | }, { 407 | "name": "包头", 408 | "value": [110, 40.58, 80] 409 | }, { 410 | "name": "绵阳", 411 | "value": [104.73, 31.48, 80] 412 | }, { 413 | "name": "乌鲁木齐", 414 | "value": [87.68, 43.77, 84] 415 | }, { 416 | "name": "枣庄", 417 | "value": [117.57, 34.86, 84] 418 | }, { 419 | "name": "杭州", 420 | "value": [120.19, 30.26, 84] 421 | }, { 422 | "name": "淄博", 423 | "value": [118.05, 36.78, 85] 424 | }, { 425 | "name": "鞍山", 426 | "value": [122.85, 41.12, 86] 427 | }, { 428 | "name": "溧阳", 429 | "value": [119.48, 31.43, 86] 430 | }, { 431 | "name": "库尔勒", 432 | "value": [86.06, 41.68, 86] 433 | }, { 434 | "name": "安阳", 435 | "value": [114.35, 36.1, 90] 436 | }, { 437 | "name": "开封", 438 | "value": [114.35, 34.79, 90] 439 | }, { 440 | "name": "济南", 441 | "value": [117, 36.65, 92] 442 | }, { 443 | "name": "德阳", 444 | "value": [104.37, 31.13, 93] 445 | }, { 446 | "name": "温州", 447 | "value": [120.65, 28.01, 95] 448 | }, { 449 | "name": "九江", 450 | "value": [115.97, 29.71, 96] 451 | }, { 452 | "name": "邯郸", 453 | "value": [114.47, 36.6, 98] 454 | }, { 455 | "name": "临安", 456 | "value": [119.72, 30.23, 99] 457 | }, { 458 | "name": "兰州", 459 | "value": [103.73, 36.03, 99] 460 | }, { 461 | "name": "沧州", 462 | "value": [116.83, 38.33, 100] 463 | }, { 464 | "name": "临沂", 465 | "value": [118.35, 35.05, 103] 466 | }, { 467 | "name": "南充", 468 | "value": [106.110698, 30.837793, 104] 469 | }, { 470 | "name": "天津", 471 | "value": [117.2, 39.13, 105] 472 | }, { 473 | "name": "富阳", 474 | "value": [119.95, 30.07, 106] 475 | }, { 476 | "name": "泰安", 477 | "value": [117.13, 36.18, 112] 478 | }, { 479 | "name": "诸暨", 480 | "value": [120.23, 29.71, 112] 481 | }, { 482 | "name": "郑州", 483 | "value": [113.65, 34.76, 113] 484 | }, { 485 | "name": "哈尔滨", 486 | "value": [126.63, 45.75, 114] 487 | }, { 488 | "name": "聊城", 489 | "value": [115.97, 36.45, 116] 490 | }, { 491 | "name": "芜湖", 492 | "value": [118.38, 31.33, 117] 493 | }, { 494 | "name": "唐山", 495 | "value": [118.02, 39.63, 119] 496 | }, { 497 | "name": "平顶山", 498 | "value": [113.29, 33.75, 119] 499 | }, { 500 | "name": "邢台", 501 | "value": [114.48, 37.05, 119] 502 | }, { 503 | "name": "德州", 504 | "value": [116.29, 37.45, 120] 505 | }, { 506 | "name": "济宁", 507 | "value": [116.59, 35.38, 120] 508 | }, { 509 | "name": "荆州", 510 | "value": [112.239741, 30.335165, 127] 511 | }, { 512 | "name": "宜昌", 513 | "value": [111.3, 30.7, 130] 514 | }, { 515 | "name": "义乌", 516 | "value": [120.06, 29.32, 132] 517 | }, { 518 | "name": "丽水", 519 | "value": [119.92, 28.45, 133] 520 | }, { 521 | "name": "洛阳", 522 | "value": [112.44, 34.7, 134] 523 | }, { 524 | "name": "秦皇岛", 525 | "value": [119.57, 39.95, 136] 526 | }, { 527 | "name": "株洲", 528 | "value": [113.16, 27.83, 143] 529 | }, { 530 | "name": "石家庄", 531 | "value": [114.48, 38.03, 147] 532 | }, { 533 | "name": "莱芜", 534 | "value": [117.67, 36.19, 148] 535 | }, { 536 | "name": "常德", 537 | "value": [111.69, 29.05, 152] 538 | }, { 539 | "name": "保定", 540 | "value": [115.48, 38.85, 153] 541 | }, { 542 | "name": "湘潭", 543 | "value": [112.91, 27.87, 154] 544 | }, { 545 | "name": "金华", 546 | "value": [119.64, 29.12, 157] 547 | }, { 548 | "name": "岳阳", 549 | "value": [113.09, 29.37, 169] 550 | }, { 551 | "name": "长沙", 552 | "value": [113, 28.21, 175] 553 | }, { 554 | "name": "衢州", 555 | "value": [118.88, 28.97, 177] 556 | }, { 557 | "name": "廊坊", 558 | "value": [116.7, 39.53, 193] 559 | }, { 560 | "name": "菏泽", 561 | "value": [115.480656, 35.23375, 194] 562 | }, { 563 | "name": "合肥", 564 | "value": [117.27, 31.86, 229] 565 | }, { 566 | "name": "武汉", 567 | "value": [114.31, 30.52, 273] 568 | }, { 569 | "name": "大庆", 570 | "value": [125.03, 46.58, 279] 571 | }] -------------------------------------------------------------------------------- /src/assets/logo.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/zjfcool/leaflet-learn/f928a286eecaa3797ed70bd2e9f2f4ab9de30f10/src/assets/logo.png -------------------------------------------------------------------------------- /src/components/ButtonGroup.vue: -------------------------------------------------------------------------------- 1 | 11 | 12 | 40 | 41 | -------------------------------------------------------------------------------- /src/components/Description.vue: -------------------------------------------------------------------------------- 1 | 7 | 8 | 25 | 26 | -------------------------------------------------------------------------------- /src/components/FlowLayer.vue: -------------------------------------------------------------------------------- 1 | 3 | 4 | 51 | 52 | -------------------------------------------------------------------------------- /src/components/LinesLayer.vue: -------------------------------------------------------------------------------- 1 | 2 | 3 | -------------------------------------------------------------------------------- /src/components/MarkerClusterLayer.vue: -------------------------------------------------------------------------------- 1 | 2 | 3 | 54 | 61 | 62 | -------------------------------------------------------------------------------- /src/components/NavList.vue: -------------------------------------------------------------------------------- 1 | 6 | 7 | 21 | 22 | -------------------------------------------------------------------------------- /src/components/ScatterLayer.vue: -------------------------------------------------------------------------------- 1 | 2 | 3 | -------------------------------------------------------------------------------- /src/components/StaticFlowLayer.vue: -------------------------------------------------------------------------------- 1 | 2 | 3 | 42 | 43 | -------------------------------------------------------------------------------- /src/components/TiffToCanvasLayer.vue: -------------------------------------------------------------------------------- 1 | 2 | 3 | 60 | -------------------------------------------------------------------------------- /src/components/TiffToGeojsonLayer.vue: -------------------------------------------------------------------------------- 1 | 2 | 3 | 192 | 193 | -------------------------------------------------------------------------------- /src/components/TiffToGridLayer.vue: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 94 | -------------------------------------------------------------------------------- /src/components/TiffToImageLayer.vue: -------------------------------------------------------------------------------- 1 | 2 | 3 | 146 | 147 | -------------------------------------------------------------------------------- /src/components/WindyLayer.vue: -------------------------------------------------------------------------------- 1 | 2 | 3 | -------------------------------------------------------------------------------- /src/main.js: -------------------------------------------------------------------------------- 1 | import Vue from 'vue' 2 | import App from './App.vue' 3 | import router from './router' 4 | import { Icon } from 'leaflet' 5 | import 'leaflet/dist/leaflet.css' 6 | delete Icon.Default.prototype._getIconUrl; 7 | import '@/assets/css/main.less'; 8 | 9 | Icon.Default.mergeOptions({ 10 | iconRetinaUrl: require('leaflet/dist/images/marker-icon-2x.png'), 11 | iconUrl: require('leaflet/dist/images/marker-icon.png'), 12 | shadowUrl: require('leaflet/dist/images/marker-shadow.png') 13 | }); 14 | 15 | Vue.config.productionTip = false 16 | 17 | new Vue({ 18 | router, 19 | render: h => h(App) 20 | }).$mount('#app') 21 | -------------------------------------------------------------------------------- /src/plugins/func.wind.js: -------------------------------------------------------------------------------- 1 | import { WindLayer } from './ocean.weather.wind' 2 | 3 | export class FuncWind { 4 | 5 | constructor(map) { 6 | this._map = map; 7 | this._findValData={} 8 | this._attribution = L.control.attribution({ 9 | prefix:"no data", 10 | position:"bottomleft" 11 | }).addTo(this._map); 12 | 13 | } 14 | 15 | start(results) { 16 | this.getDataCallback(results) 17 | } 18 | 19 | stop() { 20 | if(this._map.hasLayer(this._layer)) { 21 | this._map.removeLayer(this._layer); 22 | } 23 | this._attribution.remove() 24 | this._map.off('mousemove'); 25 | } 26 | 27 | showTooltip(e){ 28 | const {lat,lng} = e.latlng; 29 | const arr = this._findValData[`${Math.floor(lat)},${Math.floor(lng)}`]; 30 | if(arr){ 31 | this._attribution.setPrefix(`经度：${arr[1]},纬度：${arr[0]},风速：${arr[2]},风向：${arr[3]}`) 32 | }else{ 33 | this._attribution.setPrefix(`no data`) 34 | } 35 | } 36 | 37 | getDataCallback (results) { 38 | var datas = results; 39 | var config = { 40 | lat: '0', 41 | lng: '1', 42 | value: '2', 43 | dir: '3', 44 | data: datas 45 | }; 46 | datas.forEach(item=>{ 47 | this._findValData[`${Math.floor(item[0])},${Math.floor(item[1])}`]=item; 48 | }) 49 | if(this._map.hasLayer(this._layer)) { 50 | this._map.removeLayer(this._layer); 51 | } 52 | 53 | this._layer = new WindLayer({}, config); 54 | this._map.addLayer(this._layer); 55 | this._map.on('mousemove',this.showTooltip.bind(this)) 56 | } 57 | } 58 | -------------------------------------------------------------------------------- /src/plugins/georaster-layer-for-leaflet-interpotations.js: -------------------------------------------------------------------------------- 1 | //"use strict"; 2 | 3 | var chroma = require("chroma-js"); 4 | 5 | var L = window.L; 6 | 7 | var GeoRasterLayer = L.GridLayer.extend({ 8 | 9 | initialize: function initialize(options) { 10 | try { 11 | console.log("starting GeoRasterLayer.initialize with", options); 12 | options = Object.assign({ 13 | keepBuffer: 25, 14 | resolution: 2**5, 15 | updateWhenZooming: false, 16 | interpolation: false 17 | },options) 18 | 19 | 20 | 21 | var georaster = options.georaster; 22 | this.georaster = georaster; 23 | 24 | this.scale = options.color?options.color:chroma.scale('RdYlBu'); 25 | 26 | 27 | /* 28 | Unpacking values for use later. 29 | We do this in order to increase speed. 30 | */ 31 | this._maxs = georaster.maxs; 32 | this._mins = georaster.mins; 33 | this._ranges = georaster.ranges; 34 | this._no_data_value = georaster.noDataValue; 35 | this._pixelWidth = georaster.pixelWidth; 36 | this._pixelHeight = georaster.pixelHeight; 37 | this._rasters = georaster.values; 38 | this._tiff_width = georaster.width; 39 | this._tiff_height = georaster.height; 40 | this._xmin = georaster.xmin; 41 | this._ymin = georaster.ymin; 42 | this._xmax = georaster.xmax; 43 | this._ymax = georaster.ymax; 44 | // this._map = null 45 | this._popup = L.popup(); 46 | 47 | // console.log("georaster.ymin:", georaster.ymin); 48 | var southWest = L.latLng(georaster.ymin, georaster.xmin); 49 | var northEast = L.latLng(georaster.ymax, georaster.xmax); 50 | this._bounds = L.latLngBounds(southWest, northEast); 51 | // console.log("this._bounds:", this._bounds); 52 | options.bounds = this._bounds; 53 | L.setOptions(this, options); 54 | 55 | /* 56 | Caching the constant tile size, so we don't recalculate everytime we 57 | create a new tile 58 | */ 59 | var tileSize = this.getTileSize(); 60 | 61 | this._tile_height = tileSize.y; 62 | this._tile_width = tileSize.x; 63 | } catch (error) { 64 | console.error("ERROR initializing GeoTIFFLayer", error); 65 | } 66 | }, 67 | 68 | createTile: function createTile(coords) { 69 | 70 | var no_data_value = this._no_data_value; 71 | var pixelWidth = this._pixelWidth; 72 | var pixelHeight = this._pixelHeight; 73 | var rasters = this._rasters; 74 | var scale = this.scale; 75 | var xmin = this._xmin; 76 | var ymin = this._ymin; 77 | var xmax = this._xmax; 78 | var ymax = this._ymax; 79 | 80 | var tile = L.DomUtil.create('canvas', 'leaflet-tile'); 81 | tile.height = this._tile_height; 82 | tile.width = this._tile_width; 83 | 84 | // get a canvas context and draw something on it using coords.x, coords.y and coords.z 85 | var context = tile.getContext('2d'); 86 | 87 | var bounds = this._tileCoordsToBounds(coords); 88 | 89 | //if (debug_level >= 1) console.log("bounds:", bounds); 90 | 91 | var xmin_of_tile = bounds.getWest(); 92 | var xmax_of_tile = bounds.getEast(); 93 | var ymin_of_tile = bounds.getSouth(); 94 | var ymax_of_tile = bounds.getNorth(); 95 | //if (debug_level >= 1) console.log("ymax_of_tile:", ymax_of_tile); 96 | var resolution = this.options.resolution; 97 | 98 | resolution = 128 99 | var number_of_rectangles_across = resolution; 100 | var number_of_rectangles_down = resolution; 101 | 102 | var height_of_rectangle_in_pixels = this._tile_height / number_of_rectangles_down; 103 | //if (debug_level >= 1) console.log("height_of_rectangle_in_pixels:", height_of_rectangle_in_pixels); 104 | var width_of_rectangle_in_pixels = this._tile_width / number_of_rectangles_across; 105 | //if (debug_level >= 1) console.log("width_of_rectangle:", width_of_rectangle_in_pixels); 106 | 107 | var height_of_rectangle_in_degrees = (ymax_of_tile - ymin_of_tile) / number_of_rectangles_down; 108 | //if (debug_level >= 1) console.log("height_of_rectangle_in_degrees:", height_of_rectangle_in_degrees); 109 | var width_of_rectangle_in_degrees = (xmax_of_tile - xmin_of_tile) / number_of_rectangles_across; 110 | //if (debug_level >= 1) console.log("width_of_rectangle_in_degrees:", width_of_rectangle_in_degrees); 111 | 112 | //if (debug_level >= 1) console.log("ymax of raster:", ymax); 113 | 114 | var number_of_pixels_per_rectangle = this._tile_width / 8; 115 | 116 | for (var h = 0; h < number_of_rectangles_down; h++) { 117 | var lat = ymax_of_tile - (h + 0.5) * height_of_rectangle_in_degrees; 118 | 119 | for (var w = 0; w < number_of_rectangles_across; w++) { 120 | var lng = xmin_of_tile + (w + 0.5) * width_of_rectangle_in_degrees; 121 | 122 | if (lat > ymin && lat < ymax && lng > xmin && lng < xmax 123 | //&& this.isContain(lng,lat) 124 | ) { 125 | let x_in_raster_pixels = Math.floor( (lng - xmin) / pixelWidth ); 126 | let y_in_raster_pixels = Math.floor( (ymax - lat) / pixelHeight ); 127 | let values = rasters.map(raster => raster[y_in_raster_pixels][x_in_raster_pixels]); 128 | let color; 129 | if(values[0]==no_data_value){ 130 | color ='rgba(0,0,0,0)' 131 | } else{ 132 | let value = this.options.interpolation?this.interpolatedValueAtIndexes((lng - xmin) / pixelWidth,(ymax - lat) / pixelHeight):values[0] 133 | color = scale(value).hex(); 134 | } 135 | context.fillStyle = color; 136 | 137 | context.fillRect(w * width_of_rectangle_in_pixels, h * height_of_rectangle_in_pixels, width_of_rectangle_in_pixels, height_of_rectangle_in_pixels); 138 | //if (debug_level >= 1) duration_filling_rects += performance.now() - time_started_filling_rect; 139 | 140 | 141 | } 142 | } 143 | } 144 | return tile; 145 | 146 | }, 147 | interpolatedValueAtIndexes(i,j){ 148 | const raster = this._rasters[0] 149 | let tiff_width = this._tiff_width 150 | let tiff_height = this._tiff_height; 151 | let fi,fj,ci,cj 152 | let g00, g10, g01, g11 153 | if(i >= tiff_width - 1){ 154 | fi = ci = tiff_width - 1 155 | }else{ 156 | fi = Math.floor(i) 157 | ci = fi + 1 158 | } 159 | if(j >= tiff_height - 1){ 160 | fj = cj = tiff_height - 1 161 | }else{ 162 | fj = Math.floor(j) 163 | cj = fj + 1 164 | } 165 | const row0 = raster[fj] 166 | g00 = row0[fi] 167 | g10 = row0[ci]; 168 | 169 | const row1 = raster[cj] 170 | 171 | g01 = row1[fi] 172 | g11 = row1[ci]; 173 | return this._doInterpolation(i-fi,j-fj,g00, g10, g01, g11) 174 | }, 175 | /** 176 | * Bilinear interpolation for Number 177 | * https://en.wikipedia.org/wiki/Bilinear_interpolation 178 | * @param {Number} x 179 | * @param {Number} y 180 | * @param {Number} g00 181 | * @param {Number} g10 182 | * @param {Number} g01 183 | * @param {Number} g11 184 | * @returns {Number} 185 | */ 186 | _doInterpolation(x, y, g00, g10, g01, g11) { 187 | var rx = 1 - x; 188 | var ry = 1 - y; 189 | return g00 * rx * ry + g10 * x * ry + g01 * rx * y + g11 * x * y; 190 | }, 191 | getBounds: function getBounds() { 192 | return this._bounds; 193 | }, 194 | 195 | getColor: function getColor(name) { 196 | var d = document.createElement("div"); 197 | d.style.color = name; 198 | document.body.appendChild(d); 199 | return window.getComputedStyle(d).color; 200 | }, 201 | onLayerDidMount:function() { 202 | this._map.on('click', this._onClick, this); 203 | }, 204 | _onClick:function(e){ 205 | this._queryvalue(e) 206 | this.fire('click', e); 207 | }, 208 | _queryvalue(e){ 209 | let xmin = this._xmin; 210 | let ymax = this._ymax; 211 | let pixelWidth = this._pixelWidth; 212 | let pixelHeight = this._pixelHeight; 213 | let lng = e.latlng.lng 214 | let lat = e.latlng.lat 215 | let rasters = this._rasters[0] 216 | let x_pixels = Math.floor((lng - xmin) / pixelWidth); 217 | let y_pixels = Math.floor((ymax - lat) / pixelHeight); 218 | const value = rasters[y_pixels][x_pixels] 219 | if(!value) return; 220 | L.popup().setLatLng(e.latlng) 221 | .setContent(value+'') 222 | .openOn(this._map); 223 | }, 224 | onAdd:function(map){ 225 | this._map = map 226 | L.GridLayer.prototype.onAdd.call(this, map); 227 | this.onLayerDidMount() 228 | } 229 | }); 230 | 231 | if (typeof module !== "undefined" && typeof module.exports !== "undefined") { 232 | module.exports = GeoRasterLayer; 233 | } 234 | if (typeof window !== "undefined") { 235 | window["GeoRasterLayer"] = GeoRasterLayer; 236 | } else if (typeof self !== "undefined") { 237 | self["GeoRasterLayer"] = GeoRasterLayer; // jshint ignore:line 238 | } -------------------------------------------------------------------------------- /src/plugins/leaflet-echarts.js: -------------------------------------------------------------------------------- 1 | import L from 'leaflet'; 2 | L.EchartsLayer = L.Class.extend({ 3 | includes: [L.Evented], 4 | _echartsContainer: null, 5 | _map: null, 6 | _ec: null, 7 | _option: null, 8 | _mapOffset: [0, 0], 9 | _delta: 0, 10 | _startTime: null, 11 | _lastMousePos: null, 12 | _data: null, 13 | _once: 0, 14 | initialize: function (map, ec, oriData = []) { 15 | this._map = map; 16 | let size = map.getSize(); 17 | const div = this._echartsContainer = document.createElement('div'); 18 | div.style.position = 'absolute'; 19 | div.style.height = size.y + 'px'; 20 | div.style.width = size.x + 'px'; 21 | div.style.top = 0; 22 | div.style.left = 0; 23 | div.style.zIndex = 555 24 | this.overlayPane = map.getPanes().overlayPane; 25 | this.overlayPane.appendChild(div); 26 | this._init(map, ec); 27 | this._data = oriData 28 | this._once = 0; 29 | }, 30 | 31 | _init: function (map, ec) { 32 | let task; 33 | const self = this; 34 | self._map = map; 35 | //初始化mapoverlay 36 | /** 37 | * 获取echarts容器 38 | * 39 | * @return {HTMLElement} 40 | * @public 41 | */ 42 | self.getEchartsContainer = function () { 43 | return self._echartsContainer; 44 | }; 45 | self.update = function ({ 46 | seriesIndex, 47 | data 48 | }) { 49 | this._data[seriesIndex] = data 50 | self._once = 1; 51 | self._ec && self._ec.clear(); 52 | self.setOption(self._option) 53 | } 54 | self.reload = function () { 55 | self._once = 1; 56 | self._ec && self._ec.clear(); 57 | console.log(self._option); 58 | self._ec.setOption(self._option); 59 | } 60 | /** 61 | * 获取map实例 62 | * 63 | * @return {map.Map} 64 | * @public 65 | */ 66 | self.getMap = function () { 67 | return self._map; 68 | }; 69 | /** 70 | * 经纬度转换为屏幕像素 71 | * 72 | * @param {Array.} geoCoord 经纬度 73 | * @return {Array.} 74 | * @public 75 | */ 76 | self.geoCoord2Pixel = function (latLng) { 77 | //const point = new L.latLng(geoCoord[1], geoCoord[0]); 78 | const pos = self._map.latLngToContainerPoint(latLng); 79 | return [pos.x, pos.y]; 80 | }; 81 | 82 | /** 83 | * 屏幕像素转换为经纬度 84 | * 85 | * @param {Array.} pixel 像素坐标 86 | * @return {Array.} 87 | * @public 88 | */ 89 | self.pixel2GeoCoord = function (pixel) { 90 | const point = self._map.containerPointToLatLng(L.point(pixel[0], pixel[1])); 91 | return [point.lng, point.lat]; 92 | }; 93 | 94 | /** 95 | * 初始化echarts实例 96 | * 97 | * @return {ECharts} 98 | * @public 99 | */ 100 | self.initECharts = function () { 101 | 102 | self._ec = ec.init.apply(self, arguments); 103 | 104 | self._bindEvent(); 105 | return self._ec; 106 | }; 107 | 108 | 109 | /** 110 | * 获取ECharts实例 111 | * 112 | * @return {ECharts} 113 | * @public 114 | */ 115 | self.getECharts = function () { 116 | return self._ec; 117 | }; 118 | 119 | /** 120 | * 获取地图的偏移量 121 | * 122 | * @return {Array.} 123 | * @public 124 | */ 125 | self.getMapOffset = function () { 126 | return self._mapOffset; 127 | }; 128 | 129 | /** 130 | * 对echarts的setOption加一次处理 131 | * 用来为markPoint、markLine中添加x、y坐标，需要name与geoCoord对应 132 | * 133 | * @public 134 | * @param option 135 | * @param notMerge 136 | */ 137 | self.setOption = function (option, notMerge) { 138 | self._option = option; 139 | let series = self._option.series; 140 | if (!Array.isArray(series)) series = [series]; 141 | for (let i = 0; i < series.length; i++) { 142 | if (series[i].coordinateSystem !== 'geo') return; 143 | if (self._once === 0) self._data[i] = series[i].data; 144 | if (series[i].type === 'scatter') { 145 | self.scatterRender(series[i], i) 146 | } 147 | if (series[i].type === 'flowGL' || series[i].type === 'custom') { 148 | self.flowRender(series[i], i) 149 | } 150 | if (series[i].type === 'lines') { 151 | self.linesRender(series[i], i) 152 | } 153 | } 154 | self._ec.setOption(option, notMerge); 155 | 156 | }; 157 | // 风场 158 | self.flowRender = function (serie, index = 0) { 159 | serie.data = self.flowData(self._data[index]); 160 | } 161 | self.flowData = function (data) { 162 | const ret = []; 163 | for (let i = 0; i < data.length; i++) { 164 | const layerXY = self.geoCoord2Pixel(L.latLng([data[i][1], data[i][0]])); 165 | ret.push([layerXY[0], layerXY[1]].concat(data[i].slice(2))) 166 | } 167 | return ret; 168 | } 169 | // 散点 170 | self.scatterRender = function (serie, index = 0) { 171 | serie.data = self.scatterData(self._data[index]); 172 | } 173 | self.scatterData = function (data) { 174 | const ret = []; 175 | for (let i = 0; i < data.length; i++) { 176 | const layerXY = self.geoCoord2Pixel(L.latLng([data[i].value[1], data[i].value[0]])); 177 | ret.push(Object.assign({},data[i],{ 178 | value: [layerXY[0], layerXY[1]].concat(data[i].value.slice(2)) 179 | })) 180 | } 181 | return ret; 182 | } 183 | // 线 184 | self.linesRender = function (serie, index = 0) { 185 | serie.data = self.linesData(self._data[index]); 186 | } 187 | self.linesData = function (data) { 188 | const ret = [], 189 | coords = []; 190 | for (let i = 0; i < data.length; i++) { 191 | for (let j = 0; j < data[i].coords.length; j++) { 192 | const layerXY = self.geoCoord2Pixel(L.latLng([data[i].coords[j][1], data[i].coords[j][0]])); 193 | coords.push([layerXY[0], layerXY[1]].concat(data[i].coords[j].slice(2))) 194 | } 195 | let obj = Object.assign({},data[i],{ 196 | coords: coords 197 | }) 198 | ret.push(obj) 199 | 200 | } 201 | return ret; 202 | } 203 | 204 | /** 205 | * 绑定地图事件的处理方法 206 | * 207 | * @private 208 | */ 209 | self._bindEvent = function () { 210 | console.log('hello') 211 | self._map.on('move', _moveHandler('moving')); 212 | self._map.on('moveend', _moveHandler('moveend')); 213 | self._map.on('zoomstart', function () { 214 | self._ec.clear(); 215 | }); //去掉zoomstart事件 216 | self._map.on('zoomend', _zoomChangeHandler); 217 | self._ec.getZr().on('mousewheel', function (e) { 218 | if (self._map.getZoom() == self._map.getMaxZoom()) { 219 | self._ec.clear(); //在mousewheel的时候清除echarts内容 220 | _zoomChangeHandler(); 221 | } else if (self._map.getZoom() == self._map.getMinZoom()) { 222 | self._ec.clear(); //在mousewheel的时候清除echarts内容 223 | _zoomChangeHandler(); 224 | } else { 225 | self._ec.clear(); //在mousewheel的时候清除echarts内容 226 | self._lastMousePos = self._map.mouseEventToContainerPoint(e.event); 227 | let delta = L.DomEvent.getWheelDelta(e.event); 228 | const map = self._map, 229 | zoom = map.getZoom(); 230 | delta = delta > 0 ? Math.ceil(delta) : Math.floor(delta); 231 | delta = Math.max(Math.min(delta, 4), -4); 232 | delta = map._limitZoom(zoom + delta) - zoom; 233 | 234 | self._delta = 0; 235 | self._startTime = null; 236 | 237 | if (!delta) { 238 | return; 239 | } 240 | 241 | if (map.options.scrollWheelZoom === 'center') { 242 | map.setZoom(zoom + delta); 243 | } else { 244 | map.setZoomAround(self._lastMousePos, zoom + delta); 245 | } 246 | } 247 | 248 | }); 249 | }; 250 | // 追加数据 251 | self.appendData = function ({ 252 | seriesIndex, 253 | data 254 | }) { 255 | self._data[seriesIndex] = self._data[seriesIndex].concat(data); 256 | let series = self._option.series, 257 | serieData = null; 258 | if (!Array.isArray(self._option.series)) series = [series]; 259 | const type = series[seriesIndex].type; 260 | switch (type) { 261 | case 'scatter': 262 | serieData = self.scatterData(data); 263 | break; 264 | case 'lines': 265 | serieData = self.linesData(data); 266 | break; 267 | case 'custom': 268 | serieData = self.flowData(data); 269 | break; 270 | case 'flowGL': 271 | serieData = self.flowData(data); 272 | break; 273 | } 274 | self.getECharts().appendData({ 275 | seriesIndex, 276 | data: serieData 277 | }) 278 | } 279 | /** 280 | * 地图缩放触发事件 281 | * 282 | * @private 283 | */ 284 | function _zoomChangeHandler() { 285 | let timer; 286 | if (self._option.series) { 287 | clearTimeout(timer); 288 | timer = setTimeout(() => { 289 | self._once = 1; 290 | self.setOption(self._option) 291 | }, 150); 292 | } 293 | } 294 | 295 | /** 296 | * 地图移动、如拖拽触发事件 297 | * 298 | * @param {string} type moving | moveend 移动中|移动结束 299 | * @return {Function} 300 | * @private 301 | */ 302 | function _moveHandler(type) { 303 | return function () { 304 | const domPosition = self._map._getMapPanePos(); 305 | // 记录偏移量 306 | self._mapOffset = [-parseInt(domPosition.x) || 0, -parseInt(domPosition.y) || 0]; 307 | self._echartsContainer.style.left = self._mapOffset[0] + 'px'; 308 | self._echartsContainer.style.top = self._mapOffset[1] + 'px'; 309 | //_fireEvent(type); 310 | if (type == 'moving') { 311 | self._ec.clear(); 312 | } 313 | if (type == 'moveend') { 314 | _zoomChangeHandler() 315 | } 316 | } 317 | } 318 | }, 319 | destory: function(){ 320 | this.overlayPane.removeChild(this._echartsContainer); 321 | } 322 | }); 323 | L.echartsLayer = function (map, ec, data = []) { 324 | return new L.EchartsLayer(map, ec, data) 325 | } -------------------------------------------------------------------------------- /src/plugins/leaflet.canvasLayer.js: -------------------------------------------------------------------------------- 1 | 2 | /* 3 | Generic Canvas Layer for leaflet 0.7 and 1.0-rc, 4 | copyright Stanislav Sumbera, 2016 , sumbera.com , license MIT 5 | originally created and motivated by L.CanvasOverlay available here: https://gist.github.com/Sumbera/11114288 6 | 7 | */ 8 | 9 | // -- L.DomUtil.setTransform from leaflet 1.0.0 to work on 0.0.7 10 | //------------------------------------------------------------------------------ 11 | if(!L.DomUtil.setTransform){ 12 | 13 | L.DomUtil.setTransform = function (el, offset, scale) { 14 | var pos = offset || new L.Point(0, 0); 15 | 16 | el.style[L.DomUtil.TRANSFORM] = 17 | (L.Browser.ie3d ? 18 | 'translate(' + pos.x + 'px,' + pos.y + 'px)' : 19 | 'translate3d(' + pos.x + 'px,' + pos.y + 'px,0)') + 20 | (scale ? ' scale(' + scale + ')' : ''); 21 | }; 22 | } 23 | 24 | // -- support for both 0.0.7 and 1.0.0 rc2 leaflet 25 | export var CanvasLayer = (L.Layer ? L.Layer : L.Class).extend({ 26 | // -- initialized is called on prototype 27 | initialize: function (options) { 28 | this._map = null; 29 | this._canvas = null; 30 | this._frame = null; 31 | this._delegate = null; 32 | L.setOptions(this, options); 33 | }, 34 | 35 | delegate :function(del){ 36 | this._delegate = del; 37 | return this; 38 | }, 39 | 40 | needRedraw: function () { 41 | if (!this._frame) { 42 | this._frame = L.Util.requestAnimFrame(this.drawLayer, this); 43 | } 44 | return this; 45 | }, 46 | 47 | //------------------------------------------------------------- 48 | _onLayerDidResize: function (resizeEvent) { 49 | this._canvas.width = resizeEvent.newSize.x; 50 | this._canvas.height = resizeEvent.newSize.y; 51 | }, 52 | //------------------------------------------------------------- 53 | _onLayerDidMove: function () { 54 | var topLeft = this._map.containerPointToLayerPoint([0, 0]); 55 | L.DomUtil.setPosition(this._canvas, topLeft); 56 | this.drawLayer(); 57 | }, 58 | //------------------------------------------------------------- 59 | getEvents: function () { 60 | var events = { 61 | resize: this._onLayerDidResize, 62 | moveend: this._onLayerDidMove 63 | }; 64 | if (this._map.options.zoomAnimation && L.Browser.any3d) { 65 | events.zoomanim = this._animateZoom; 66 | } 67 | 68 | return events; 69 | }, 70 | //------------------------------------------------------------- 71 | onAdd: function (map) { 72 | this._map = map; 73 | this._canvas = L.DomUtil.create('canvas', 'leaflet-layer'); 74 | this.tiles = {}; 75 | 76 | var size = this._map.getSize(); 77 | this._canvas.width = size.x; 78 | this._canvas.height = size.y; 79 | 80 | var animated = this._map.options.zoomAnimation && L.Browser.any3d; 81 | L.DomUtil.addClass(this._canvas, 'leaflet-zoom-' + (animated ? 'animated' : 'hide')); 82 | 83 | 84 | map._panes.overlayPane.appendChild(this._canvas); 85 | map.on(this.getEvents(),this); 86 | 87 | var del = this._delegate || this; 88 | del.onLayerDidMount && del.onLayerDidMount(); // -- callback 89 | this.needRedraw(); 90 | 91 | var self = this; 92 | setTimeout(function(){ 93 | self._onLayerDidMove(); 94 | }, 0); 95 | }, 96 | 97 | //------------------------------------------------------------- 98 | onRemove: function (map) { 99 | var del = this._delegate || this; 100 | del.onLayerWillUnmount && del.onLayerWillUnmount(); // -- callback 101 | 102 | 103 | map.getPanes().overlayPane.removeChild(this._canvas); 104 | 105 | map.off(this.getEvents(),this); 106 | 107 | this._canvas = null; 108 | 109 | }, 110 | 111 | //------------------------------------------------------------ 112 | addTo: function (map) { 113 | map.addLayer(this); 114 | return this; 115 | }, 116 | // -------------------------------------------------------------------------------- 117 | LatLonToMercator: function (latlon) { 118 | return { 119 | x: latlon.lng * 6378137 * Math.PI / 180, 120 | y: Math.log(Math.tan((90 + latlon.lat) * Math.PI / 360)) * 6378137 121 | }; 122 | }, 123 | 124 | //------------------------------------------------------------------------------ 125 | drawLayer: function () { 126 | // -- todo make the viewInfo properties flat objects. 127 | var size = this._map.getSize(); 128 | var bounds = this._map.getBounds(); 129 | var zoom = this._map.getZoom(); 130 | 131 | var center = this.LatLonToMercator(this._map.getCenter()); 132 | var corner = this.LatLonToMercator(this._map.containerPointToLatLng(this._map.getSize())); 133 | 134 | var del = this._delegate || this; 135 | del.onDrawLayer && del.onDrawLayer( { 136 | layer : this, 137 | canvas: this._canvas, 138 | bounds: bounds, 139 | size: size, 140 | zoom: zoom, 141 | center : center, 142 | corner : corner 143 | }); 144 | this._frame = null; 145 | }, 146 | // -- L.DomUtil.setTransform from leaflet 1.0.0 to work on 0.0.7 147 | //------------------------------------------------------------------------------ 148 | _setTransform: function (el, offset, scale) { 149 | var pos = offset || new L.Point(0, 0); 150 | 151 | el.style[L.DomUtil.TRANSFORM] = 152 | (L.Browser.ie3d ? 153 | 'translate(' + pos.x + 'px,' + pos.y + 'px)' : 154 | 'translate3d(' + pos.x + 'px,' + pos.y + 'px,0)') + 155 | (scale ? ' scale(' + scale + ')' : ''); 156 | }, 157 | 158 | //------------------------------------------------------------------------------ 159 | _animateZoom: function (e) { 160 | var scale = this._map.getZoomScale(e.zoom); 161 | // -- different calc of offset in leaflet 1.0.0 and 0.0.7 thanks for 1.0.0-rc2 calc @jduggan1 162 | var offset = L.Layer ? this._map._latLngToNewLayerPoint(this._map.getBounds().getNorthWest(), e.zoom, e.center) : 163 | this._map._getCenterOffset(e.center)._multiplyBy(-scale).subtract(this._map._getMapPanePos()); 164 | 165 | L.DomUtil.setTransform(this._canvas, offset, scale); 166 | 167 | 168 | } 169 | }); 170 | 171 | L.canvasLayer = function () { 172 | return new L.CanvasLayer(); 173 | }; 174 | -------------------------------------------------------------------------------- /src/plugins/ocean.weather.wind.js: -------------------------------------------------------------------------------- 1 | import { CanvasLayer } from './leaflet.canvasLayer' 2 | 3 | /** 4 | * 气象图层 - 风 5 | */ 6 | class Wind { 7 | /** 8 | * 构造函数 9 | * @param {L.LatLng} latlng 经纬度 10 | * @param {Number} speed 风速（海里/小时） 11 | * @param {Number} dir 风向（度，正北方向为0度，顺时针） 12 | * @param {Object} options 绘制选项 13 | * @return {Null} [description] 14 | */ 15 | constructor(latlng, speed, dir, options = {}) { 16 | this._latlng = latlng; 17 | this._speed = this._convertToMileS(speed); 18 | this._dir = dir; 19 | this.options = Object.assign({ 20 | isDrawLeftRight: false, // 是否绘制相邻两边 21 | windLineLen: 16, // 风向线长度 22 | levelLineMinLen: 4, // 风力线长度 23 | chunkCount: 6 //等分点个数，至少六等分 24 | }, options); 25 | } 26 | 27 | get latLng() { 28 | return this._latlng; 29 | } 30 | 31 | set latLng(value) { 32 | this._latlng = value; 33 | } 34 | 35 | get speed() { 36 | return this._speed; 37 | } 38 | 39 | set speed(value) { 40 | this._speed = this._convertToMileS(value); 41 | } 42 | 43 | get dir() { 44 | return this._dir; 45 | } 46 | 47 | set dir(value) { 48 | this._dir = value; 49 | } 50 | 51 | get level() { 52 | // return 10; 53 | var level = 0; 54 | var speed = this._speed; 55 | if(speed <= 0.2) { 56 | level = 0; 57 | } else if(speed > 0.2 && speed <= 1.5) { 58 | level = 1; 59 | } else if(speed > 1.5 && speed <= 3.3) { 60 | level = 2; 61 | } else if(speed > 3.3 && speed <= 5.4) { 62 | level = 3; 63 | } else if(speed > 5.4 && speed <= 7.9) { 64 | level = 4; 65 | } else if(speed > 7.9 && speed <= 10.7) { 66 | level = 5; 67 | } else if(speed > 10.7 && speed <= 13.8) { 68 | level = 6; 69 | } else if(speed > 13.8 && speed <= 17.1) { 70 | level = 7; 71 | } else if(speed > 17.1 && speed <= 20.7) { 72 | level = 8; 73 | } else if(speed > 20.7 && speed <= 24.4) { 74 | level = 9; 75 | } else if(speed > 24.4 && speed <= 28.4) { 76 | level = 10; 77 | } else if(speed > 28.4 && speed <= 32.6) { 78 | level = 11; 79 | } else if(speed > 32.6 && speed <= 36.9) { 80 | level = 12; 81 | } else if(speed > 36.9 && speed <= 41.4) { 82 | level = 13; 83 | } else if(speed > 41.4 && speed <= 46.1) { 84 | level = 14; 85 | } else if(speed > 46.1 && speed <= 50.9) { 86 | level = 15; 87 | } else if(speed > 50.9 && speed <= 56.0) { 88 | level = 16; 89 | } else if(speed > 56.0) { 90 | level = 17; 91 | } 92 | return level; 93 | } 94 | 95 | get color() { 96 | var speed = this._speed; 97 | if(speed <= 7.9) { 98 | // 0-4级风 99 | return '#D3DE44'; 100 | } else if(speed > 7.9 && speed <= 17.1) { 101 | // 5-7级风 102 | return '#E68514'; 103 | } else if(speed > 17.1 && speed <= 36.9) { 104 | // 8-12级风 105 | return '#E82318'; 106 | } else { 107 | // 13-17级风 108 | return '#B80D75'; 109 | } 110 | } 111 | 112 | _convertToMileS(speed) { 113 | return Number(speed) * 1852 / 3600; 114 | } 115 | } 116 | 117 | export var WindLayer = CanvasLayer.extend({ 118 | 119 | initialize: function (options, config) { 120 | CanvasLayer.prototype.initialize.call(this, options); 121 | this.cfg = Object.assign({ 122 | lat: '0', 123 | lng: '1', 124 | value: '2', 125 | dir: '3', 126 | data: [], 127 | isDrawLeftRight: false 128 | }, config); 129 | this._data = this.cfg.data; 130 | this._sortData = this.sortByLat(this._data); 131 | }, 132 | 133 | setData: function (data) { 134 | // -- custom data set 135 | this._data = data; 136 | this._sortData = this.sortByLat(this._data); 137 | this.needRedraw(); // -- call to drawLayer 138 | }, 139 | 140 | onLayerDidMount: function () { 141 | // -- prepare custom drawing 142 | }, 143 | 144 | onLayerWillUnmount: function () { 145 | // -- custom cleanup 146 | }, 147 | 148 | onDrawLayer: function (info) { 149 | // -- custom draw 150 | var canvas = this._canvas = info.canvas; 151 | var ctx = this._ctx = info.canvas.getContext('2d'); 152 | var map = this._map = info.layer._map; 153 | var zoom = map.getZoom(); 154 | var sortData = this._sortData; 155 | var latOffset = 1; 156 | var lngOffset = 1; 157 | 158 | ctx.clearRect(0, 0, canvas.width, canvas.height); 159 | 160 | // 根据不同级别确定抽稀粒度 161 | if(zoom < 2) { 162 | latOffset = 16; 163 | lngOffset = 16; 164 | } else if(zoom >= 2 && zoom < 3) { 165 | latOffset = 8; 166 | lngOffset = 8; 167 | } else if(zoom >= 3 && zoom < 5) { 168 | latOffset = 4; 169 | lngOffset = 4; 170 | } else { 171 | latOffset = 1; 172 | lngOffset = 1; 173 | } 174 | 175 | // 按纬度绘制 176 | var latPts, latlng, lLatLng, rLatLng, speed, dir, windobj, lwindobj, rwindobj; 177 | for(let i = 0, len = sortData.length; i < len; i += latOffset) { 178 | latPts = sortData[i]; 179 | for(let j = 0, lenj = latPts.length; j < lenj; j += lngOffset) { 180 | latlng = L.latLng(latPts[j][this.cfg.lat], latPts[j][this.cfg.lng]); 181 | speed = Number(latPts[j][this.cfg.value]); 182 | dir = Number(latPts[j][this.cfg.dir]); 183 | windobj = new Wind(latlng, speed, dir, { isDrawLeftRight: this.cfg.isDrawLeftRight }); 184 | this.drawWind(ctx, windobj); 185 | if(windobj.options.isDrawLeftRight) { 186 | lLatLng = latlng.getSubtract360LatLng(); 187 | rLatLng = latlng.getAdd360LatLng(); 188 | lwindobj = new Wind(lLatLng, speed, dir, { isDrawLeftRight: this.cfg.isDrawLeftRight }); 189 | rwindobj = new Wind(rLatLng, speed, dir, { isDrawLeftRight: this.cfg.isDrawLeftRight }); 190 | this.drawWind(ctx, lwindobj); 191 | this.drawWind(ctx, rwindobj); 192 | } 193 | } 194 | } 195 | }, 196 | 197 | sortByLat: function (data) { 198 | // console.time('按纬度分隔'); 199 | var newData = []; 200 | var temp = []; 201 | // 将数据按纬度划分 202 | for(let i = 0, len = data.length; i < len; i++) { 203 | if(temp.length === 0) { 204 | temp.push(data[i]); 205 | } else { 206 | if(data[i][0] === temp[temp.length - 1][0]) { 207 | temp.push(data[i]); 208 | } else { 209 | newData.push(temp); 210 | temp = []; 211 | } 212 | } 213 | } 214 | // console.timeEnd('按纬度分隔'); 215 | return newData; 216 | }, 217 | 218 | drawWind: function (ctx, WindObj) { 219 | // console.time('drawWind'); 220 | var startPoint = this._map.latLngToContainerPoint(WindObj.latLng); 221 | var len = WindObj.options.windLineLen; 222 | var r = WindObj.options.levelLineMinLen; 223 | var arc = Math.PI / 180 * WindObj.dir; 224 | var a = startPoint.x; 225 | var b = startPoint.y; 226 | var x0 = a; 227 | var y0 = b - len; 228 | var endPoint = { 229 | x: a + (x0 - a) * Math.cos(arc) - (y0 - b) * Math.sin(arc), 230 | y: b + (x0 - a) * Math.sin(arc) + (y0 - b) * Math.cos(arc) 231 | }; 232 | var level = WindObj.level; 233 | var floorLevel = Math.floor(level / 8); 234 | var color = WindObj.color; 235 | 236 | var count8 = floorLevel; // 8级个数 237 | var count2 = Math.floor(level % 8 / 2); // 2级个数 238 | var count1 = level % 2 === 0 ? 0 : 1; // 1级个数 239 | var count = WindObj.options.chunkCount; // 等分点个数 240 | 241 | ctx.save(); 242 | ctx.beginPath(); 243 | if(count8 === 0 && count2 === 0 && count1 === 0) { 244 | ctx.arc(startPoint.x, startPoint.y, r, 0, Math.PI * 2); 245 | } else { 246 | ctx.moveTo(startPoint.x, startPoint.y); 247 | ctx.lineTo(endPoint.x, endPoint.y); 248 | // 8 级 249 | for(let i = 0; i < count8; i++) { 250 | let sp = this.getChunkPoint(startPoint, endPoint, count, 2 * i + 1); 251 | let sp2 = this.getChunkPoint(startPoint, endPoint, count, 2 * i + 1 + 2); 252 | let lp = this.getPointByDistance(startPoint, sp, r * 2); 253 | ctx.moveTo(sp.x, sp.y); 254 | ctx.lineTo(lp.x, lp.y); 255 | ctx.lineTo(sp2.x, sp2.y); 256 | } 257 | // 2级 258 | for(let i = 0; i < count2; i++) { 259 | let sp = this.getChunkPoint(startPoint, endPoint, count, 2 * count8 + 1 + i); 260 | let lp = this.getPointByDistance(startPoint, sp, r * 2); 261 | ctx.moveTo(sp.x, sp.y); 262 | ctx.lineTo(lp.x, lp.y); 263 | } 264 | // 1级 265 | for(let i = 0; i < count1; i++) { 266 | let sp = this.getChunkPoint(startPoint, endPoint, count, 2 * count8 + 1 + count2 + i); 267 | let lp = this.getPointByDistance(startPoint, sp, r); 268 | ctx.moveTo(sp.x, sp.y); 269 | ctx.lineTo(lp.x, lp.y); 270 | } 271 | } 272 | ctx.strokeStyle = color; 273 | ctx.stroke(); 274 | ctx.restore(); 275 | // console.timeEnd('drawWind'); 276 | }, 277 | 278 | //取一条线的 count 等分点的第number(1,2,3...)个点，从endPoint开始计数。 279 | getChunkPoint: function (startPoint, endPoint, count, number) { 280 | var points = []; 281 | var xn, yn; 282 | points.push(startPoint); 283 | for(let i = 1; i < count; i++) { 284 | xn = startPoint.x + i * (endPoint.x - startPoint.x) / count; 285 | yn = startPoint.y + i * (endPoint.y - startPoint.y) / count; 286 | points.push(L.point(xn, yn)); 287 | } 288 | points.push(endPoint); 289 | points = points.reverse(); 290 | return points[number - 1]; 291 | }, 292 | 293 | getPointByDistance: function (sp, ep, r) { 294 | var x, y; 295 | var k = (ep.y - sp.y) / (ep.x - sp.x); 296 | var r2 = Math.pow(r, 2); 297 | var k2 = Math.pow(k, 2); 298 | //不同坐标系符号问题 299 | if(ep.x > sp.x) { 300 | if(ep.y < sp.y) { 301 | x = ep.x + Math.sqrt((r2 * k2) / (1 + k2)); 302 | y = ep.y + Math.sqrt(r2 / (1 + k2)); 303 | } else { 304 | x = ep.x - Math.sqrt((r2 * k2) / (1 + k2)); 305 | y = ep.y + Math.sqrt(r2 / (1 + k2)); 306 | } 307 | 308 | } else if(ep.x < sp.x) { 309 | if(ep.y > sp.y) { 310 | x = ep.x - Math.sqrt((r2 * k2) / (1 + k2)); 311 | y = ep.y - Math.sqrt(r2 / (1 + k2)); 312 | } else { 313 | x = ep.x + Math.sqrt((r2 * k2) / (1 + k2)); 314 | y = ep.y - Math.sqrt(r2 / (1 + k2)); 315 | } 316 | } else { 317 | if(ep.y > sp.y) { 318 | x = ep.x - r; 319 | y = ep.y; 320 | } else { 321 | x = ep.x + r; 322 | y = ep.y; 323 | } 324 | } 325 | return L.point(x, y); 326 | } 327 | 328 | }); 329 | -------------------------------------------------------------------------------- /src/router.js: -------------------------------------------------------------------------------- 1 | import Vue from 'vue' 2 | import Router from 'vue-router' 3 | 4 | Vue.use(Router) 5 | 6 | export default new Router({ 7 | routes: [ 8 | { 9 | path: '/', 10 | name: 'home', 11 | redirect: { 12 | name:'geotiff' 13 | }, 14 | }, 15 | { 16 | path: '/geotiff', 17 | name: 'geotiff', 18 | component: () => import(/* webpackChunkName: "geotiff" */ './views/TiffMapLayer.vue') 19 | }, 20 | { 21 | path: '/ec', 22 | name: 'leafletEcharts', 23 | component: () => import(/* webpackChunkName: "leafletEcharts" */ './views/EchartsMapLayer.vue') 24 | }, 25 | { 26 | path: '/flow', 27 | name: 'flow', 28 | component: () => import(/* webpackChunkName: "flow" */ './views/FlowMapLayer.vue') 29 | }, 30 | { 31 | path: '/points', 32 | name: 'points', 33 | component: () => import(/* webpackChunkName: "points" */ './views/PointsMapLayer.vue') 34 | }, 35 | ] 36 | }) 37 | -------------------------------------------------------------------------------- /src/views/EchartsMapLayer.vue: -------------------------------------------------------------------------------- 1 | 9 | 10 | 105 | -------------------------------------------------------------------------------- /src/views/FlowMapLayer.vue: -------------------------------------------------------------------------------- 1 | 9 | 10 | 82 | -------------------------------------------------------------------------------- /src/views/PointsMapLayer.vue: -------------------------------------------------------------------------------- 1 | 14 | 15 | 108 | -------------------------------------------------------------------------------- /src/views/TiffMapLayer.vue: -------------------------------------------------------------------------------- 1 | 14 | 15 | 119 | -------------------------------------------------------------------------------- /vue.config.js: -------------------------------------------------------------------------------- 1 | module.exports={ 2 | publicPath: './', 3 | // https://zjfcool.github.io 4 | // devServer: { 5 | // host: '0.0.0.0', 6 | // proxy: { 7 | // "/leaflet-learn": { 8 | // target: "https://zjfcool.github.io", 9 | // changeOrigin: true, 10 | // autoRewrite: true, 11 | // cookieDomainRewrite: true, 12 | // // pathRewrite: { 13 | // // '^/api': '/' 14 | // // } 15 | 16 | // }, 17 | 18 | // } 19 | // } 20 | } --------------------------------------------------------------------------------