From 66e48ee8e286533a9614efa34d42297213c1da4b Mon Sep 17 00:00:00 2001
From: riku <risaku@163.com>
Date: 星期三, 04 六月 2025 17:34:11 +0800
Subject: [PATCH] 动态溯源（待完成）

---
 src/utils/map/calculate.js |  101 ++++++++++++++++++++++++++++++--------------------
 1 files changed, 60 insertions(+), 41 deletions(-)

diff --git a/src/utils/map/calculate.js b/src/utils/map/calculate.js
index 5fe8f49..01ffd8d 100644
--- a/src/utils/map/calculate.js
+++ b/src/utils/map/calculate.js
@@ -94,20 +94,72 @@
 }
 
 /**
+ * 楂樺痉鍦板浘鍧愭爣杞珿PS鍧愭爣绠楁硶
+ */
+function gcj02towgs84(lng, lat) {
+  // lat = +latlng = +lng
+  if (out_of_china(lng, lat)) {
+    return [lng, lat];
+  } else {
+    let dlat = transformlat(lng - 105.0, lat - 35.0);
+    let dlng = transformlng(lng - 105.0, lat - 35.0);
+    let radlat = (lat / 180.0) * PI;
+    let magic = Math.sin(radlat);
+    magic = 1 - ee * magic * magic;
+    let sqrtmagic = Math.sqrt(magic);
+    dlat = (dlat * 180.0) / (((a * (1 - ee)) / (magic * sqrtmagic)) * PI);
+    dlng = (dlng * 180.0) / ((a / sqrtmagic) * Math.cos(radlat) * PI);
+    let mglat = Math.round((lat * 2 - lat - dlat) * 1000000) / 1000000;
+    let mglng = Math.round((lng * 2 - lng - dlng) * 1000000) / 1000000;
+    return [mglng, mglat];
+  }
+}
+
+//浠嶨PS杞珮寰�
+function wgs84_To_Gcj02(lon, lat) {
+  if (out_of_china(lon, lat)) {
+    return [lon, lat];
+  } else {
+    let dLat = transformlat(lon - 105.0, lat - 35.0);
+    let dLon = transformlng(lon - 105.0, lat - 35.0);
+    let radLat = (lat / 180.0) * PI;
+    let magic = Math.sin(radLat);
+    magic = 1 - ee * magic * magic;
+    let sqrtMagic = Math.sqrt(magic);
+    dLat = (dLat * 180.0) / (((a * (1 - ee)) / (magic * sqrtMagic)) * PI);
+    dLon = (dLon * 180.0) / ((a / sqrtMagic) * Math.cos(radLat) * PI);
+    let mgLat = lat + dLat;
+    let mgLon = lon + dLon;
+    return [mgLon, mgLat];
+  }
+}
+
+/**
  * 灏唃ps缁忕含搴﹁浆鎹负楂樺痉鍦板浘缁忕含搴�
  * @param {*} lnglats
  * @param {*} callback
  */
 function _convertLatlng(index, coor, lnglats, type = 'gps', callback) {
   if (index < coor.length) {
-    var path = parse2LngLat(coor[index]);
-    // eslint-disable-next-line no-undef
-    AMap.convertFrom(path, type, function (status, result) {
-      if (result.info === 'ok') {
-        lnglats.push.apply(lnglats, result.locations);
-        _convertLatlng(index + 1, coor, lnglats, type, callback);
+    coor[index].forEach((c) => {
+      let r;
+      if (type == 'gps') {
+        r = wgs84_To_Gcj02(c[0], c[1]);
+      } else {
+        r = gcj02towgs84(c[0], c[1]);
       }
+      lnglats.push({ lng: r[0], lat: r[1] });
     });
+    _convertLatlng(index + 1, coor, lnglats, type, callback);
+
+    // var path = parse2LngLat(coor[index]);
+    // // eslint-disable-next-line no-undef
+    // AMap.convertFrom(path, type, function (status, result) {
+    //   if (result.info === 'ok') {
+    //     lnglats.push.apply(lnglats, result.locations);
+    //     _convertLatlng(index + 1, coor, lnglats, type, callback);
+    //   }
+    // });
   } else {
     callback(lnglats);
   }
@@ -231,41 +283,8 @@
   /**
    * 楂樺痉鍦板浘鍧愭爣杞珿PS鍧愭爣绠楁硶
    */
-  gcj02towgs84(lng, lat) {
-    // lat = +latlng = +lng
-    if (out_of_china(lng, lat)) {
-      return [lng, lat];
-    } else {
-      let dlat = transformlat(lng - 105.0, lat - 35.0);
-      let dlng = transformlng(lng - 105.0, lat - 35.0);
-      let radlat = (lat / 180.0) * PI;
-      let magic = Math.sin(radlat);
-      magic = 1 - ee * magic * magic;
-      let sqrtmagic = Math.sqrt(magic);
-      dlat = (dlat * 180.0) / (((a * (1 - ee)) / (magic * sqrtmagic)) * PI);
-      dlng = (dlng * 180.0) / ((a / sqrtmagic) * Math.cos(radlat) * PI);
-      let mglat = Math.round((lat * 2 - lat - dlat) * 1000000) / 1000000;
-      let mglng = Math.round((lng * 2 - lng - dlng) * 1000000) / 1000000;
-      return [mglng, mglat];
-    }
-  },
+  gcj02towgs84,
 
   //浠嶨PS杞珮寰�
-  wgs84_To_Gcj02(lon, lat) {
-    if (out_of_china(lon, lat)) {
-      return [lon, lat];
-    } else {
-      let dLat = transformlat(lon - 105.0, lat - 35.0);
-      let dLon = transformlng(lon - 105.0, lat - 35.0);
-      let radLat = (lat / 180.0) * PI;
-      let magic = Math.sin(radLat);
-      magic = 1 - ee * magic * magic;
-      let sqrtMagic = Math.sqrt(magic);
-      dLat = (dLat * 180.0) / (((a * (1 - ee)) / (magic * sqrtMagic)) * PI);
-      dLon = (dLon * 180.0) / ((a / sqrtMagic) * Math.cos(radLat) * PI);
-      let mgLat = lat + dLat;
-      let mgLon = lon + dLon;
-      return [mgLon, mgLat];
-    }
-  }
+  wgs84_To_Gcj02
 };

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