feat: 处理轮询时地图刷新的问题

src/views/inspection/cockpit/components/ManualTakeover/index.vue

@@ -100,7 +100,7 @@
         </div>
         <div class="video-container">
             <div v-if="activeMode === 'auto' || activeController === 1" class="map-container">
-                <MapCanvas v-if="robotList.length > 0" :clearMap="true" :robotList="currentRobot" ref="mapCanvasRef" />
+                <MapCanvas v-if="robotList.length > 0" :robotList="currentRobot" ref="mapCanvasRef" />
             </div>
             <div v-if="activeMode === 'artificial' && activeController === 2" class="model-container">
                 <UrdfViewer ref="urdfViewerRef" modelPath="/inspection/elfin10/elfin10.urdf.xacro" />

src/views/inspection/cockpit/components/MapCanvas.vue

@@ -28,16 +28,11 @@ import {
 import { getMapJson } from '@/api/inspection/robot'
 import { useInspectionStore } from "@/store/modules/inspection";
 import { ElMessage } from 'element-plus';
-import { clear } from 'ace-builds/src-noconflict/ext-code_lens';
 
 const props = defineProps({
     robotList: {
         type: Array,
         default: () => []
-    },
-    clearMap: {
-        type: Boolean,
-        default: false
     }
 })
 
@@ -78,6 +73,9 @@ const applicationState = {
 let mapCanvas;     // 主渲染画布 DOM 元素
 let canvasCtx;                 // 2D 渲染上下文
 
+let animationFrameId;
+let mapLoadVersion = 0;
+
 const init = () => {
     mapCanvas = document.getElementById('map-canvas');
     canvasCtx = mapCanvas.getContext('2d');
@@ -191,7 +189,7 @@ function renderFrame(timestamp) {
 
     // 如果地图未加载，跳过绘制
     if (!applicationState.isMapLoaded) {
-        requestAnimationFrame(renderFrame);                         // 继续请求下一帧
+        animationFrameId = requestAnimationFrame(renderFrame);      // 继续请求下一帧
         return;
     }
 
@@ -241,7 +239,7 @@ function renderFrame(timestamp) {
     drawMapBoundary(canvasCtx, map);
 
     // 请求下一帧渲染
-    requestAnimationFrame(renderFrame);
+    animationFrameId = requestAnimationFrame(renderFrame);
 }
 
 const drawAllRobots = (ctx) => {
@@ -354,14 +352,25 @@ const centerCanvasView = () => {
     inspectionStore.camera.centerY = (map.originY + map.maxY) / 2;
 }
 
-const loadSourceMap = async () => {
+const getConnectedRobot = (robotList = props.robotList) => {
-    const connectedRobot = props.robotList.find(item => item.connectStatus == 1);
+    return robotList.find(item => item?.connectStatus == 1)
+}
+
+const getMapIdentity = (robotList = props.robotList) => {
+    const robot = getConnectedRobot(robotList)
+    return robot ? `${robot.id ?? ''}:${robot.robotMapName ?? ''}` : ''
+}
+
+const loadSourceMap = async (connectedRobot = getConnectedRobot()) => {
     if (!connectedRobot) return;
 
+    const currentLoadVersion = ++mapLoadVersion;
+
     const res = await getMapJson({
         robotId: connectedRobot.id,
         mapName: connectedRobot.robotMapName
     });
+    if (currentLoadVersion !== mapLoadVersion) return;
     if (res.code === 200) {
         try {
             const rawJsonObject = JSON.parse(res.data);        // 解析 JSON
@@ -373,20 +382,6 @@ const loadSourceMap = async () => {
     }
 };
 
-/**
- * 
- * @param id 机器人编号
- * @param name 机器人名称
- * @param angleRad 角度
- * @param color 颜色
- */
-const addRobot = (id, name,x, y, angleRad, color) => {
-    const map = applicationState.parsedMap;
-    // 放置于地图中央附近
-    const robot = new MobileRobot(id, name, x, y, angleRad, color);
-    applicationState.robots.push(robot);
-}
-
 const parseRobotPosition = (currentPosition) => {
     if (!currentPosition) return null
     const values = String(currentPosition).split(',').map(Number)
@@ -394,60 +389,58 @@ const parseRobotPosition = (currentPosition) => {
     return values
 }
 
-const moveRobot = (robot, dx, dy, dtheta = 0) => {
+const syncRobots = (robotList) => {
-    robot.x += dx;
+    const previousRobots = new Map(applicationState.robots.map(robot => [robot.id, robot]));
-    robot.y += dy;
+    const nextRobots = [];
-    robot.angle += dtheta;
+
+    robotList.forEach(item => {
+        const position = parseRobotPosition(item.currentPosition)
+        if (!position) return
+
+        const [x, y, angle] = position
+        const robot = previousRobots.get(item.id)
+        if (robot) {
+            robot.name = item.robotName
+            robot.x = x
+            robot.y = y
+            robot.angle = angle
+            nextRobots.push(robot)
+            return
+        }
+
+        nextRobots.push(new MobileRobot(
+            item.id,
+            item.robotName,
+            x,
+            y,
+            angle,
+            colorList[nextRobots.length % colorList.length]
+        ))
+    })
+
+    applicationState.robots = nextRobots
 }
 
 onMounted(() => {
     init()
-    if (props.robotList.length > 0) {
+    window.addEventListener('resize', resizeCanvasToContainer);
-            loadSourceMap()
+    resizeCanvasToContainer();
-            requestAnimationFrame(renderFrame);
+    bindEvent()
-            window.addEventListener('resize', resizeCanvasToContainer);    // 监听窗口大小变化
+    syncRobots(props.robotList)
-            resizeCanvasToContainer();                                     // 初始调用一次
+    loadSourceMap()
-            setTimeout(() => {
+    animationFrameId = requestAnimationFrame(renderFrame);
-                bindEvent()
-                props.robotList.forEach(item => {
-                    const position = parseRobotPosition(item.currentPosition)
-                    if (!position) return
-                    const [x, y, angle] = position
-                    addRobot(item.id, item.robotName, x, y, angle, colorList[applicationState.robots.length % colorList.length])
-                })
-            }, 300)
-        }
 })
 
 const colorList = ['#00D4FF', '#FFB300', '#00FF88', '#ff5100', '#fff', '#15ff00', '#ff00d4', '#00d4ff']
 
-watch(() => props.robotList,
+// 轮询只同步机器人实例，不重新请求、解析或重置地图。
-    (newVal) => {
+watch(() => props.robotList, syncRobots)
-        if (newVal.length > 0) {
-            if (props.clearMap) {
-                applicationState.robots = []
-            }
-            loadSourceMap()
 
-            const ids = applicationState.robots.map(r => r.id);
+// 只有用于加载地图的机器人或地图名称改变时，才重新加载底图。
-            props.robotList.forEach(item => {
+watch(
-                const position = parseRobotPosition(item.currentPosition)
+    () => getMapIdentity(props.robotList),
-                if (!position) return
+    (newIdentity, oldIdentity) => {
-                const [x, y, angle] = position
+        if (newIdentity && newIdentity !== oldIdentity) loadSourceMap()
-                if (!ids.includes(item.id)) {
-                    addRobot(item.id, item.robotName, x, y, angle, colorList[applicationState.robots.length % colorList.length])
-                } else {
-                    applicationState.robots.forEach(robot => {
-                        if (robot.id === item.id) {
-                            // moveRobot(robot, parseFloat(x) - robot.x, parseFloat(y) - robot.y, parseFloat(angle) - robot.angle)
-                            robot.x = x
-                            robot.y = y
-                            robot.angle = angle
-                        }
-                    })
-                }
-            })
-        }
     }
 )
 
@@ -458,6 +451,8 @@ defineExpose({
 
 onUnmounted(() => {
     window.removeEventListener('resize', resizeCanvasToContainer)
+    cancelAnimationFrame(animationFrameId)
+    mapLoadVersion += 1
     canvasCtx = null
 })
 </script>