update：圆形网格案例代码结构的修改

src/examples/sceneSet/circularSpaceGrid/circularSpaceGrid-function.js

-export function addCircularSpaceGrid() {
-    const script = document.createElement('script');
-    script.src = 'https://cesium.com/downloads/cesiumjs/releases/1.99/Build/Cesium/Cesium.js';
-    script.onload = () => {
-        window.Cesium.Ion.defaultAccessToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiI3Njg4ZWU5Yi1iZDhiLTRhYmUtOTRiYS04YjM5NmUwNjVmMDMiLCJpZCI6MjI3MzQ3LCJpYXQiOjE3MjA1MjA4Mjh9.E5XW4LnwgfVAaBC-znaYr61m4yK0-j2qEQhi9qwFFPE'
-
-        const viewer = new window.Cesium.Viewer('cesiumContainer', {
-            infoBox: false,
-        });
-
-        // 定义圆心位置和半径
-        const center = Cesium.Cartesian3.fromDegrees(120, 30);
-        const radius = 100000; // 半径，单位为米
-
-        // 定义网格参数
-        const numRings = 10; // 圆环数量
-        const numRadials = 24; // 径向数量
-
-        // 创建圆环
-        for (let i = 1; i <= numRings; i++) {
-            const circleRadius = radius * i / numRings;
-            const circlePositions = [];
-            for (let j = 0; j <= 360; j++) {
-                const angle = Cesium.Math.toRadians(j);
-                const x = circleRadius * Math.cos(angle);
-                const y = circleRadius * Math.sin(angle);
-                const position = Cesium.Cartesian3.add(center, new Cesium.Cartesian3(x, y, 0), new Cesium.Cartesian3());
-                circlePositions.push(position);
-            }
-            viewer.entities.add({
-                name: `Circle Ring ${i}`,
-                polyline: {
-                    positions: circlePositions,
-                    width: 1,
-                    material: Cesium.Color.WHITE
-                }
-            });
-        }
-
-        // 创建径向线
-        for (let i = 0; i < numRadials; i++) {
-            const angle = Cesium.Math.toRadians(360 * i / numRadials);
-            const endPoint = Cesium.Cartesian3.add(
-                center,
-                new Cesium.Cartesian3(radius * Math.cos(angle), radius * Math.sin(angle), 0),
-                new Cesium.Cartesian3()
-            );
-            viewer.entities.add({
-                name: `Radial ${i}`,
-                polyline: {
-                    positions: [center, endPoint],
-                    width: 1,
-                    material: Cesium.Color.WHITE
-                }
-            });
+export function addCircularSpaceGrid(viewer) {
+    // 定义圆心位置和半径
+    const center = Cesium.Cartesian3.fromDegrees(120, 30);
+    const radius = 100000; // 半径，单位为米
+
+    // 定义网格参数
+    const numRings = 10; // 圆环数量
+    const numRadials = 24; // 径向数量
+
+    // 创建圆环
+    for (let i = 1; i <= numRings; i++) {
+        const circleRadius = radius * i / numRings;
+        const circlePositions = [];
+        for (let j = 0; j <= 360; j++) {
+            const angle = Cesium.Math.toRadians(j);
+            const x = circleRadius * Math.cos(angle);
+            const y = circleRadius * Math.sin(angle);
+            const position = Cesium.Cartesian3.add(center, new Cesium.Cartesian3(x, y, 0), new Cesium.Cartesian3());
+            circlePositions.push(position);
         }
-
-        viewer.camera.flyTo({
-            destination: Cesium.Cartesian3.fromDegrees(120, 30, 300000),
-            orientation: {
-                heading: Cesium.Math.toRadians(0),
-                pitch: Cesium.Math.toRadians(-90),
-                roll: 0.0
+        viewer.entities.add({
+            name: `Circle Ring ${i}`,
+            polyline: {
+                positions: circlePositions,
+                width: 1,
+                material: Cesium.Color.WHITE
             }
         });
-
-    };
-    document.head.appendChild(script);
-
-    const link = document.createElement('link');
-    link.rel = 'stylesheet';
-    link.href = 'https://cesium.com/downloads/cesiumjs/releases/1.119/Build/Cesium/Widgets/widgets.css';
-    document.head.appendChild(link);
+    }
+
+    // 创建径向线
+    for (let i = 0; i < numRadials; i++) {
+        const angle = Cesium.Math.toRadians(360 * i / numRadials);
+        const endPoint = Cesium.Cartesian3.add(
+            center,
+            new Cesium.Cartesian3(radius * Math.cos(angle), radius * Math.sin(angle), 0),
+            new Cesium.Cartesian3()
+        );
+        viewer.entities.add({
+            name: `Radial ${i}`,
+            polyline: {
+                positions: [center, endPoint],
+                width: 1,
+                material: Cesium.Color.WHITE
+            }
+        });
+    }
+
+    viewer.camera.flyTo({
+        destination: Cesium.Cartesian3.fromDegrees(120, 30, 300000),
+        orientation: {
+            heading: Cesium.Math.toRadians(0),
+            pitch: Cesium.Math.toRadians(-90),
+            roll: 0.0
+        }
+    });
 }

src/examples/sceneSet/circularSpaceGrid/circularSpaceGrid.vue

 <template>
     <div id="cesiumContainer" class="cesium-container"></div>
 </template>
+
 <script setup>
 import { onMounted } from 'vue';
 import { addCircularSpaceGrid } from './function';
+
+let viewer;
+
 onMounted(() => {
-    addCircularSpaceGrid()
+    const script = document.createElement('script');
+    script.src = 'https://cesium.com/downloads/cesiumjs/releases/1.99/Build/Cesium/Cesium.js';
+    script.onload = () => {
+        window.Cesium.Ion.defaultAccessToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiI3Njg4ZWU5Yi1iZDhiLTRhYmUtOTRiYS04YjM5NmUwNjVmMDMiLCJpZCI6MjI3MzQ3LCJpYXQiOjE3MjA1MjA4Mjh9.E5XW4LnwgfVAaBC-znaYr61m4yK0-j2qEQhi9qwFFPE'
+
+        viewer = new window.Cesium.Viewer('cesiumContainer', {
+            infoBox: false,
+        });
+
+        addCircularSpaceGrid(viewer)
+
+    };
+    document.head.appendChild(script);
+    const link = document.createElement('link');
+    link.rel = 'stylesheet';
+    link.href = 'https://cesium.com/downloads/cesiumjs/releases/1.119/Build/Cesium/Widgets/widgets.css';
+    document.head.appendChild(link);
 });
 </script>
 
 <style>
 .cesium-container {
-width: 100%;
-height: 100vh;
+    width: 100%;
+    height: 100vh;
 }
 </style>
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