diff --git a/package.json b/package.json index 8c7c89b..f83024b 100644 --- a/package.json +++ b/package.json @@ -9,6 +9,7 @@ }, "dependencies": { "axios": "^1.6.3", + "gcoord": "^1.0.5", "pinia": "^2.1.7", "vant": "^4.8.0", "vue": "^3.3.4", diff --git a/src/router/dtzh.js b/src/router/dtzh.js new file mode 100644 index 0000000..c5091b5 --- /dev/null +++ b/src/router/dtzh.js @@ -0,0 +1,76 @@ +var x_PI = 3.14159265358979324 * 3000.0 / 180.0; +var PI = 3.1415926535897932384626; +var a = 6378245.0; +var ee = 0.00669342162296594323; + +function gcj02towgs84(lng, lat) { + var lat = +lat; + var lng = +lng; + if (out_of_china(lng, lat)) { + return [lng, lat] + } else { + var dlat = transformlat(lng - 105.0, lat - 35.0); + var dlng = transformlng(lng - 105.0, lat - 35.0); + var radlat = lat / 180.0 * PI; + var magic = Math.sin(radlat); + magic = 1 - ee * magic * magic; + var sqrtmagic = Math.sqrt(magic); + dlat = (dlat * 180.0) / ((a * (1 - ee)) / (magic * sqrtmagic) * PI); + dlng = (dlng * 180.0) / (a / sqrtmagic * Math.cos(radlat) * PI); + var mglat = lat + dlat; + var mglng = lng + dlng; + return [lng * 2 - mglng, lat * 2 - mglat] + } +}; +function out_of_china(lng, lat) { + var lat = +lat; + var lng = +lng; + // 纬度3.86~53.55,经度73.66~135.05 + return !(lng > 73.66 && lng < 135.05 && lat > 3.86 && lat < 53.55); +}; +function transformlat(lng, lat) { + var lat = +lat; + var lng = +lng; + 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)); + ret += (20.0 * Math.sin(6.0 * lng * PI) + 20.0 * Math.sin(2.0 * lng * PI)) * 2.0 / 3.0; + ret += (20.0 * Math.sin(lat * PI) + 40.0 * Math.sin(lat / 3.0 * PI)) * 2.0 / 3.0; + ret += (160.0 * Math.sin(lat / 12.0 * PI) + 320 * Math.sin(lat * PI / 30.0)) * 2.0 / 3.0; + return ret +}; +function transformlng(lng, lat) { + var lat = +lat; + var lng = +lng; + var ret = 300.0 + lng + 2.0 * lat + 0.1 * lng * lng + 0.1 * lng * lat + 0.1 * Math.sqrt(Math.abs(lng)); + ret += (20.0 * Math.sin(6.0 * lng * PI) + 20.0 * Math.sin(2.0 * lng * PI)) * 2.0 / 3.0; + ret += (20.0 * Math.sin(lng * PI) + 40.0 * Math.sin(lng / 3.0 * PI)) * 2.0 / 3.0; + ret += (150.0 * Math.sin(lng / 12.0 * PI) + 300.0 * Math.sin(lng / 30.0 * PI)) * 2.0 / 3.0; + return ret +}; + +function latLng2WebMercator(lng, lat) { + var earthRad = 6378137.0; + var x = lng * Math.PI / 180 * earthRad; + var a = lat * Math.PI / 180; + var y = earthRad / 2 * Math.log((1.0 + Math.sin(a)) / (1.0 - Math.sin(a))); + return [x, y]; //[12727039.383734727, 3579066.6894065146] +} + + + +function wgs84utmToGCJ02(){ +var retransformX = document.getElementById("retransformX"); +var retransformY = document.getElementById("retransformY"); +var transformX = document.getElementById("transformX"); +var transformY = document.getElementById("transformY"); +var g84 = gcj02towgs84(Number(retransformX.value),Number(retransformY.value)) +var mer = latLng2WebMercator(g84[0],g84[1]) + +transformX.value = mer[0]; +transformY.value = mer[1]; + +} + + + + +export default gcj02towgs84; \ No newline at end of file diff --git a/src/views/HomeView.vue b/src/views/HomeView.vue index 7757eb4..effbea9 100644 --- a/src/views/HomeView.vue +++ b/src/views/HomeView.vue @@ -157,7 +157,9 @@