flat: 添加地图

untils/tools.js

@@ -1,4 +1,4 @@
-function onDialingPhoneNumber(phone) {
+export function onDialingPhoneNumber(phone) {
     return new Promise((resolve, reject) => {
         uni.makePhoneCall({
             phoneNumber: phone, // 电话号码
@@ -11,8 +11,39 @@ function onDialingPhoneNumber(phone) {
         });
     })
 }
+/**
+ * 个位数，加0前缀
+ * @param {*} number
+ * @returns
+ */
+export function addZeroPrefix(number) {
+    return number < 10 ? `0${number}` : number
+}
+
+export function getDistanceFromLatLonInKm(lat1, lon1, lat2, lon2) {
+    const R = 6371; // 地球平均半径，单位为公里
+    const dLat = deg2rad(lat2 - lat1);
+    const dLon = deg2rad(lon2 - lon1);
+    const a =
+        Math.sin(dLat / 2) * Math.sin(dLat / 2) +
+        Math.cos(deg2rad(lat1)) * Math.cos(deg2rad(lat2)) *
+        Math.sin(dLon / 2) * Math.sin(dLon / 2);
+    const c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
+    const d = R * c;
+    return {
+        km: d,
+        m: d * 1000
+    };
+}
+
+// 将角度转换为弧度
+function deg2rad(deg) {
+    return deg * (Math.PI / 180);
+}
 
 
 export default {
-    onDialingPhoneNumber
+    onDialingPhoneNumber,
+    addZeroPrefix,
+    getDistanceFromLatLonInKm
 }