i

src/utils/index.ts

@@ -1,26 +1,20 @@
+import { showToast, navigateBack } from "@tarojs/taro";
+
 // 经纬度计算距离
 export function calculateDistance(
-    lat1: number,
-    lon1: number,
-    lat2: number,
-    lon2: number
-): string {
-    const R = 6371; // 地球平均半径（单位：千米）
-
-    const dLat = toRadians(lat2 - lat1);
-    const dLon = toRadians(lon2 - lon1);
-
-    const a =
-        Math.sin(dLat / 2) * Math.sin(dLat / 2) +
-        Math.cos(toRadians(lat1)) *
-            Math.cos(toRadians(lat2)) *
-            Math.sin(dLon / 2) *
-            Math.sin(dLon / 2);
-
-    const c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
-
-    const distance = R * c;
-    return distance.toFixed(2);
+    la1: number,
+    lo1: number,
+    la2: number,
+    lo2: number
+): any {
+    var radLat1 = la1 * Math.PI / 180.0;
+    var radLat2 = la2 * Math.PI / 180.0;
+    var a = radLat1 - radLat2;
+    var b = lo1 * Math.PI / 180.0 - lo2 * Math.PI / 180.0;
+    var s = 2 * Math.asin(Math.sqrt(Math.pow(Math.sin(a / 2), 2) + Math.cos(radLat1) * Math.cos(radLat2) * Math.pow(Math.sin(b / 2), 2)));
+    s = s * 6378.137;
+    s = Math.round(s * 10000) / 10000;
+    return s.toFixed(2) + 'km'
 }
 
 // 将角度转换为弧度