106 lines
3.9 KiB
JavaScript
106 lines
3.9 KiB
JavaScript
#!/bin/node
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import {readFileSync,createWriteStream,writeFileSync, existsSync} from 'fs';
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import {get as httpsGet} from 'https';
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import mapshaper from 'mapshaper';
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import {GeoJSON2SVG} from 'geojson2svg';
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const LOCAL_SVG_PATH = "./app/src/main/assets/"
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const GADM_VERSION="4.1"
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const GADM_BASEPATH="https://geodata.ucdavis.edu/gadm"
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const countries =
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[
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"AFG","XAD","ALA","ALB","DZA","ASM","AND","AGO","AIA","ATG","ARG","ARM","ABW","AUS","AUT","AZE",
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"BHS","BHR","BGD","BRB","BLR","BEL","BLZ","BEN","BMU","BTN","BOL","BES","BIH","BWA","BVT","BRA", "IOT","VGB","BRN","BGR","BFA","BDI","KHM",
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"CMR","CAN","CPV","XCA","CYM","CAF","TCD","CHL","CHN","CXR","XCL","CCK","COL","COM","COK","CRI","CIV","HRV","CUB","CUW","CYP","CZE","COD",
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"DNK","DJI","DMA","DOM","ECU","EGY","SLV","GNQ","ERI","EST","ETH","FLK","FRO","FJI","FIN","FRA","GUF","PYF","ATF",
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"GAB","GMB","GEO","DEU","GHA","GIB","GRC","GRL","GRD","GLP","GUM","GTM","GGY","GIN","GNB","GUY","HTI","HMD","HND","HUN",
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"ISL","IND","IDN","IRN","IRQ","IRL","IMN","ISR","ITA","JAM","JPN","JEY","JOR","KAZ","KEN","KIR","XKO","KWT","KGZ",
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"LAO","LVA","LBN","LSO","LBR","LBY","LIE","LTU","LUX","SXM",
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"MKD","MDG","MWI","MYS","MDV","MLI","MLT","MHL","MTQ","MRT","MUS","MYT","MEX","FSM","MDA","MCO","MNG","MNE","MSR","MAR","MOZ","MMR",
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"NAM","NRU","NPL","NLD","NCL","NZL","NIC","NER","NGA","NIU","NFK","PRK","ZNC","MNP","NOR","OMN",
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"PAK","PLW","PSE","PAN","PNG","PRY","PER","PHL","PCN","POL","PRT","PRI","QAT","COG","REU","ROU","RUS","RWA","BLM","MAF",
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"SHN","KNA","LCA","SPM","VCT","WSM","SMR","STP","SAU","SEN","SRB","SYC","SLE","SGP","SVK","SVN","SLB","SOM","ZAF","SGS","KOR","SSD","ESP",
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"LKA","SDN","SUR","SJM","SWZ","SWE","CHE","SYR","TWN","TJK","TZA","THA","TLS","TGO","TKL","TON","TTO","TUN","TUR","TKM","TCA","TUV","UGA",
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"UKR","ARE","GBR","USA","UMI","URY","UZB","VUT","VAT","VEN","VNM","VIR","WLF","ESH","YEM","ZMB","ZWE"
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]
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const url_0 = (country) => `${GADM_BASEPATH}/gadm${GADM_VERSION}/json/gadm${GADM_VERSION.replace(".","")}_${country}_0.json`;
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const url_1 = (country) => `${GADM_BASEPATH}/gadm${GADM_VERSION}/json/gadm${GADM_VERSION.replace(".","")}_${country}_1.json.zip`;
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const dl0 = (country) => new Promise((resolve,_reject) => {
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const filepath = `temp/${country}_0.json`
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if (existsSync(filepath)){
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return resolve(filepath)
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}
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try{
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httpsGet(url_0(country), r=>{
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const file = createWriteStream(filepath);
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r.pipe(file);
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file.on("finish", ()=>{
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file.close();
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resolve(filepath)
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})
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})
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}catch(e){
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console.log("DL Error:",country)
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console.log(e)
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resolve("")
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}
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})
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const parse0 = (country) => new Promise((resolve, _reject) => {
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const filepath = `temp/${country}_0.json`
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try{
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let geo0 = JSON.parse(readFileSync(filepath))
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simplify(geo0)
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.then(geo1=>{
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resolve(toSVG(geo1).join(''))
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})
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}catch(e){
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console.log(country," PARSE Error")
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console.log(e)
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resolve('')
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}
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});
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const toSVG = (geojson)=> new GeoJSON2SVG({
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viewportSize: {width:720,height:720},
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attributes: {},
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mapExtent: {left: -180, bottom: -90, right: 180, top: 90},
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precision: 0,
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output:'svg'
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}).convert(geojson)
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const simplify = (geo0) => mapshaper.applyCommands(`-i data.json -simplify 5% visvalingam weighted -o data.json rfc7946 -o data.svg `, { 'data.json': geo0}).then(res=>{
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const geo1 = JSON.parse(res['data.json'].toString())
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const svg = res['data.svg'].toString()
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console.log(svg)
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geo1.features = geo1.features.filter(e=>e.geometry != null)
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return geo1
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})
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async function run(){
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const cp = countries.map(c=>
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dl0(c).then(_=> parse0(c)).then(r=>{
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writeFileSync(LOCAL_SVG_PATH+c+"_0.psvg",r)
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return r
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})
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)
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const cpp = await Promise.all(cp)
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// console.log(cpp)
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var svgStr = `<svg id="map" xmlns="http://www.w3.org/2000/svg" width="1200" height="1200" x="0" y="0" >`+
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cpp.join('')
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+ `</svg>`;
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writeFileSync('./temp/example.svg',svgStr);
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cpp.forEach(e=>{
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writeFileSync
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})
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}
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run()
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