95 lines
3.3 KiB
JavaScript
95 lines
3.3 KiB
JavaScript
export const formatTime = date => {
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const year = date.getFullYear()
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const month = date.getMonth() + 1
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const day = date.getDate()
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const hour = date.getHours()
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const minute = date.getMinutes()
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const second = date.getSeconds()
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return `${[year, month, day].map(formatNumber).join('-')} ${[hour, minute, second].map(formatNumber).join(':')}`
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}
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const formatNumber = n => {
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n = n.toString()
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return n[1] ? n : `0${n}`
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}
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export let isType = (type, target) => Object.prototype.toString.call(target) == `[object ${type}]`
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export function getDataByPath(data, dataPath) {
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dataPath = dataPath.split('.');
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for (let key of dataPath) {
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if (!data) return null;
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data = data[key]
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}
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return data;
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}
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/**
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* 火星坐标系 (GCJ-02) 与百度坐标系 (BD-09) 的转换
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* 即谷歌、高德 转 百度
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*/
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var x_PI = 3.14159265358979324 * 3000.0 / 180.0;
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var PI = 3.1415926535897932384626;
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var a = 6378245.0;
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var ee = 0.00669342162296594323;
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export function out_of_china(lng, lat) {
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return (lng < 72.004 || lng > 137.8347) || ((lat < 0.8293 || lat > 55.8271) || false);
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}
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export function gcj02tobd09(lng, lat) {
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var z = Math.sqrt(lng * lng + lat * lat) + 0.00002 * Math.sin(lat * x_PI);
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var theta = Math.atan2(lat, lng) + 0.000003 * Math.cos(lng * x_PI);
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var bd_lng = z * Math.cos(theta) + 0.0065;
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var bd_lat = z * Math.sin(theta) + 0.006;
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return [bd_lng, bd_lat]
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}
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export function transformlat(lng, lat) {
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var ret = -100.0 + 2.0 * lng + 3.0 * lat + 0.2 * lat * lat + 0.1 * lng * lat + 0.2 * Math.sqrt(Math.abs(lng));
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ret += (20.0 * Math.sin(6.0 * lng * PI) + 20.0 * Math.sin(2.0 * lng * PI)) * 2.0 / 3.0;
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ret += (20.0 * Math.sin(lat * PI) + 40.0 * Math.sin(lat / 3.0 * PI)) * 2.0 / 3.0;
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ret += (160.0 * Math.sin(lat / 12.0 * PI) + 320 * Math.sin(lat * PI / 30.0)) * 2.0 / 3.0;
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return ret
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}
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export function transformlng(lng, lat) {
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var ret = 300.0 + lng + 2.0 * lat + 0.1 * lng * lng + 0.1 * lng * lat + 0.1 * Math.sqrt(Math.abs(lng));
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ret += (20.0 * Math.sin(6.0 * lng * PI) + 20.0 * Math.sin(2.0 * lng * PI)) * 2.0 / 3.0;
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ret += (20.0 * Math.sin(lng * PI) + 40.0 * Math.sin(lng / 3.0 * PI)) * 2.0 / 3.0;
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ret += (150.0 * Math.sin(lng / 12.0 * PI) + 300.0 * Math.sin(lng / 30.0 * PI)) * 2.0 / 3.0;
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return ret
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}
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export function wgs84togcj02(coordinate) {
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let lng = coordinate[0];
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let lat = coordinate[1];
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if (out_of_china(lng, lat)) {
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return [lng, lat]
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}
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else {
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var dlat = transformlat(lng - 105.0, lat - 35.0);
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var dlng = transformlng(lng - 105.0, lat - 35.0);
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var radlat = lat / 180.0 * PI;
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var magic = Math.sin(radlat);
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magic = 1 - ee * magic * magic;
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var sqrtmagic = Math.sqrt(magic);
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dlat = (dlat * 180.0) / ((a * (1 - ee)) / (magic * sqrtmagic) * PI);
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dlng = (dlng * 180.0) / (a / sqrtmagic * Math.cos(radlat) * PI);
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var mglat = parseFloat(lat) + parseFloat(dlat);
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var mglng = parseFloat(lng) + parseFloat(dlng);
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return [mglng, mglat]
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}
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}
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export function foramtRegion(arr,data){
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for(let item of data){
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let tem=[]
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for(let key of arr){
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if(item[key]){
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tem.push(item[key])
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}else{
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break;
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}
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}
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item.region=tem.join("/");
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}
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return data;
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}
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