gx

src/view/sy_mapcopy.vue

@@ -610,9 +610,10 @@ const tsbqTotal = ref([
 ]);
 const data = reactive({
   serviceCircleList: [],
-  fwqCoordinates: "", //服务圈中心坐标
+  fwqCoordinates: [], //服务圈经度
-  fwqCoordinates1: [], //服务圈中心坐标
+  fwqCoordinates1: [], //服务圈经度
-  fwqCoordinates2: [], //服务圈中心坐标
+  fwqCoordinates2: [], //服务圈纬度
+  zoomLevel: null, //服务圈缩放级别
 });
 //基本公共服务圈
 const jbfwqTotal = ref([
@@ -1946,12 +1947,12 @@ const getFwq = () => {
         jbfwqTotal.value.push({
           name: item.xzjd,
           child: [],
-        })
+        });
         item.csqs.forEach((item2) => {
           jbfwqTotal.value[index].child.push({
             name: item2.csq,
-            jc:item2.jc
+            jc: item2.jc,
-          })
+          });
         });
       });
     }
@@ -1983,7 +1984,7 @@ const changeFwq = async (id, name, names) => {
       map.clearOverlays(); //清空地图上所有的覆盖物
       addggfwq(); //创建公共服务圈
       setTimeout(() => {
-        goMapCenter([data.fwqCoordinates1, data.fwqCoordinates2], 16); //中心点缩放
+        goMapCenter([data.fwqCoordinates1, data.fwqCoordinates2], data.zoomLevel); //中心点缩放
       }, 500);
     } else {
       ElMessage.warning("无数据");
@@ -2003,18 +2004,40 @@ const getServiceCircle = async (communityName, townName) => {
     console.error("Error fetching data:", error);
   }
 };
-//创建公共服务圈
+// 计算中心点
-const addggfwq = () => {
+const calculateCenterPoint = (coordinates) => {
-  if (fwqList.value.length !== 0) {
+  if (coordinates.length === 0) {
-    data.fwqCoordinates1 = [];
+    return null;
-    data.fwqCoordinates2 = [];
+  }
-    fwqList.value.map((item, index) => {
+
-      data.fwqCoordinates1.push(item.point[0]);
+  let x = 0.0;
-      data.fwqCoordinates2.push(item.point[1]);
+  let y = 0.0;
-      createCustomOverlay(item, index);
+  let z = 0.0;
+
+  coordinates.forEach((coord) => {
+    const lat = (parseFloat(coord[1]) * Math.PI) / 180;
+    const lon = (parseFloat(coord[0]) * Math.PI) / 180;
+
+    x += Math.cos(lat) * Math.cos(lon);
+    y += Math.cos(lat) * Math.sin(lon);
+    z += Math.sin(lat);
   });
-    // console.log("经纬度", data.fwqCoordinates1, data.fwqCoordinates2);
+
-    function calculateAverage(coordinates) {
+  const total = coordinates.length;
+  x /= total;
+  y /= total;
+  z /= total;
+
+  const centralLon = Math.atan2(y, x);
+  const centralSquareRoot = Math.sqrt(x * x + y * y);
+  const centralLat = Math.atan2(z, centralSquareRoot);
+
+  return [
+    ((centralLon * 180) / Math.PI).toFixed(6), // 经度
+    ((centralLat * 180) / Math.PI).toFixed(6), // 纬度
+  ];
+};
+const calculateAverage = (coordinates) => {
   // const numericCoordinates = coordinates.map(Number); // 将字符串转换为数字
   const numericCoordinates = coordinates.map((coord) => {
     // 使用正则表达式去除非数字字符（保留小数点和负号）
@@ -2023,28 +2046,67 @@ const addggfwq = () => {
   });
   const sum = numericCoordinates.reduce((acc, val) => acc + val, 0); // 计算总和
   const average = sum / numericCoordinates.length; // 计算平均值
-      return parseFloat(average.toFixed(5)); // 保留5位小数并转换为数字
+  // console.log(average, "计算平均值");
-    }
 
-    data.fwqCoordinates1 = calculateAverage(data.fwqCoordinates1);
+  return parseFloat(average.toFixed(5)); // 保留5位小数并转换为数字
-    data.fwqCoordinates2 = calculateAverage(data.fwqCoordinates2);
+};
+// 根据最大距离计算合适的缩放级别
+const calculateZoomLevel = (maxDistance) => {
+  // 示例实现，您可以根据需要调整计算逻辑
+  if (maxDistance < 151) return 18;
+  if (maxDistance < 400) return 17;
+  if (maxDistance < 600) return 17.5;
+  if (maxDistance < 1000) return 16;
+  if (maxDistance < 2000) return 15;
+  if (maxDistance < 3000) return 14;
+  if (maxDistance < 5000) return 13;
+  return 13;
+};
+//创建公共服务圈
+const addggfwq = () => {
+  if (fwqList.value.length !== 0) {
+    data.fwqCoordinates = [];
+    // data.fwqCoordinates1 = [];
+    // data.fwqCoordinates2 = [];
+    fwqList.value.map((item, index) => {
+      data.fwqCoordinates.push(item.point);
+      // data.fwqCoordinates1.push(item.point[0]);
+      // data.fwqCoordinates2.push(item.point[1]);
+      createCustomOverlay(item, index);
+    });
+
+    const centerPoint = calculateCenterPoint(data.fwqCoordinates);
+
+    data.fwqCoordinates1 = centerPoint[0];
+    data.fwqCoordinates2 = centerPoint[1];
+    // data.fwqCoordinates1 = calculateAverage(data.fwqCoordinates1);
+    // data.fwqCoordinates2 = calculateAverage(data.fwqCoordinates2);
+    // console.log(centerPoint); // 输出中心点的经纬度
+    // console.log("经纬度", data.fwqCoordinates1, data.fwqCoordinates2 );
 
     let distances = []; // 初始化距离数组
     fwqList.value.forEach((item) => {
+      // let distance = algorithm(
+      //   (item.point[0] = Number(item.point[0].replace(/[^0-9.-]/g, ""))),
+      //   (item.point[1] = Number(item.point[1].replace(/[^0-9.-]/g, ""))),
+      //   data.fwqCoordinates1,
+      //   data.fwqCoordinates2
+      // );
       let distance = algorithm(
-        (item.point[0] = Number(item.point[0].replace(/[^0-9.-]/g, ""))),
+        Number(item.point[0].replace(/[^0-9.-]/g, "")),
-        (item.point[1] = Number(item.point[1].replace(/[^0-9.-]/g, ""))),
+        Number(item.point[1].replace(/[^0-9.-]/g, "")),
-        data.fwqCoordinates1,
+        Number(centerPoint[0]),
-        data.fwqCoordinates2
+        Number(centerPoint[1])
       );
       distances.push(distance); // 将距离存入数组
     });
     let maxDistance = Math.max(...distances); // 找到最大距离
-    maxDistance = Math.ceil(maxDistance * 1.8); // 向上取整
+    maxDistance = Math.ceil(maxDistance * 2.2); // 向上取整
     if (maxDistance < 100) {
       maxDistance = 150; // 如果小于 100，则赋值为 150
     }
-    console.log("最大距离:", maxDistance);
+    data.zoomLevel = calculateZoomLevel(maxDistance);
+    // console.log("最大距离:", maxDistance,data.zoomLevel);
     drawACircle(maxDistance);
   } else {
     ElMessage.warning("无数据");