fix 实时监控收集

src/views/equipmentList/list.vue

@@ -104,11 +104,16 @@
       <template #header>
         <div class="flex w-full items-center justify-between gap-2 min-w-0 pr-8">
           <span class="truncate">实时监控-北门出入门监控</span>
-          <el-button type="primary" class="shrink-0">绘制区域</el-button>
+          <el-button type="primary" class="shrink-0" @click="drawImage()">绘制区域</el-button>
         </div>
       </template>
       <div class="monitor-video-wrap">
-        <video ref="monitorVideoRef" class="monitor-video" controls preload="metadata" :src="monitorVideoUrl">您的浏览器不支持视频播放</video>
+        <div class="monitor-video-stack">
+          <video ref="monitorVideoRef" class="monitor-video" controls preload="metadata" :src="monitorVideoUrl">您的浏览器不支持视频播放</video>
+          <div v-show="monitorDrawCollecting" class="monitor-draw-overlay" @click.stop="onMonitorDrawClick" />
+          <div v-if="monitorRectPx" class="monitor-draw-rect" :style="drawRectStyle" />
+          <div v-if="monitorRectPx" class="monitor-draw-label" :style="drawLabelStyle">当前报警区域</div>
+        </div>
       </div>
     </el-dialog>
   </div>
@@ -145,6 +150,31 @@ const dialog1 = reactive<DialogOption>({
 const monitorVideoUrl = 'http://192.168.0.214:8088/5a0db047943df198aff98b650ac9e001.mp4';
 const monitorVideoRef = ref<HTMLVideoElement>();
 
+type MonitorPoint = { x: number; y: number };
+const monitorDrawCollecting = ref(false);
+const monitorDrawPoints = ref<MonitorPoint[]>([]);
+const monitorRectPx = ref<{ left: number; top: number; width: number; height: number } | null>(null);
+
+const drawRectStyle = computed<Record<string, string>>(() => {
+  const r = monitorRectPx.value;
+  if (!r) return {};
+  return {
+    left: `${r.left}px`,
+    top: `${r.top}px`,
+    width: `${Math.max(r.width, 2)}px`,
+    height: `${Math.max(r.height, 2)}px`
+  };
+});
+
+const drawLabelStyle = computed<Record<string, string>>(() => {
+  const r = monitorRectPx.value;
+  if (!r) return {};
+  return {
+    left: `${r.left + r.width / 2}px`,
+    top: `${r.top}px`
+  };
+});
+
 const initFormData = {
   id: undefined,
   code: undefined,
@@ -264,8 +294,15 @@ const handleActivate = async (row?: any) => {
 };
 
 /* 查看监控 */
+const resetMonitorDraw = () => {
+  monitorDrawCollecting.value = false;
+  monitorDrawPoints.value = [];
+  monitorRectPx.value = null;
+};
+
 const handleSee = async (row?: any) => {
   reset();
+  resetMonitorDraw();
   const _id = row?.id || ids.value[0];
   const res = await getDeviceInfo(_id);
   Object.assign(form.value, res.data);
@@ -275,9 +312,102 @@ const handleSee = async (row?: any) => {
 const handleMonitorDialogClose = (done: () => void) => {
   monitorVideoRef.value?.pause();
   monitorVideoRef.value && (monitorVideoRef.value.currentTime = 0);
+  resetMonitorDraw();
   done();
 };
 
+/** 显示坐标(相对 video 元素) → 视频原始像素坐标，含 object-fit: contain 留白换算 */
+const displayToVideoPixel = (px: number, py: number, video: HTMLVideoElement): { vx: number; vy: number } | null => {
+  const dw = video.clientWidth;
+  const dh = video.clientHeight;
+  const VW = video.videoWidth;
+  const VH = video.videoHeight;
+  if (dw <= 0 || dh <= 0 || VW <= 0 || VH <= 0) return null;
+
+  const scale = Math.min(dw / VW, dh / VH);
+  const contentW = VW * scale;
+  const contentH = VH * scale;
+  const offsetX = (dw - contentW) / 2;
+  const offsetY = (dh - contentH) / 2;
+
+  const vx = Math.min(VW, Math.max(0, (px - offsetX) / scale));
+  const vy = Math.min(VH, Math.max(0, (py - offsetY) / scale));
+  return { vx, vy };
+};
+
+/** 开始采集：视频上点击两个对角点 */
+const drawImage = () => {
+  resetMonitorDraw();
+  monitorDrawCollecting.value = true;
+  proxy?.$modal.msgSuccess('请在视频画面上连续点击两个点，生成报警区域');
+};
+
+const onMonitorDrawClick = (e: MouseEvent) => {
+  if (!monitorDrawCollecting.value) return;
+  const video = monitorVideoRef.value;
+  if (!video) {
+    proxy?.$modal.msgWarning('视频未就绪');
+    return;
+  }
+  const rect = video.getBoundingClientRect();
+  const dw = rect.width;
+  const dh = rect.height;
+  if (dw <= 0 || dh <= 0) {
+    proxy?.$modal.msgWarning('无法获取视频区域尺寸');
+    return;
+  }
+
+  const x = e.clientX - rect.left;
+  const y = e.clientY - rect.top;
+  const p: MonitorPoint = { x, y };
+  monitorDrawPoints.value = [...monitorDrawPoints.value, p];
+  if (monitorDrawPoints.value.length < 2) return;
+
+  const [p1, p2] = monitorDrawPoints.value;
+
+  const VW = video.videoWidth;
+  const VH = video.videoHeight;
+  const v1 = displayToVideoPixel(p1.x, p1.y, video);
+  const v2 = displayToVideoPixel(p2.x, p2.y, video);
+  if (!v1 || !v2 || !VW || !VH) {
+    monitorDrawPoints.value = [];
+    proxy?.$modal.msgWarning('请等待视频加载完成后再绘制（需能读取原始宽高）');
+    return;
+  }
+
+  const left = Math.min(p1.x, p2.x);
+  const top = Math.min(p1.y, p2.y);
+  const width = Math.max(Math.abs(p2.x - p1.x), 1);
+  const height = Math.max(Math.abs(p2.y - p1.y), 1);
+  monitorRectPx.value = { left, top, width, height };
+  monitorDrawCollecting.value = false;
+  monitorDrawPoints.value = [];
+
+  const minVx = Math.min(v1.vx, v2.vx);
+  const maxVx = Math.max(v1.vx, v2.vx);
+  const minVy = Math.min(v1.vy, v2.vy);
+  const maxVy = Math.max(v1.vy, v2.vy);
+  const rw = Math.max(maxVx - minVx, 1);
+  const rh = Math.max(maxVy - minVy, 1);
+
+  const firstTopPctOfHeight = (v1.vy / VH) * 100;
+  const firstRightPctOfWidth = ((VW - v1.vx) / VW) * 100;
+  const rectWidthPctOfWidth = (rw / VW) * 100;
+  const rectHeightPctOfHeight = (rh / VH) * 100;
+
+  const payload = {
+    videoIntrinsicSize: { width: VW, height: VH },
+    firstPointTopOffset_pctOfVideoHeight: Number(firstTopPctOfHeight.toFixed(4)),
+    firstPointDistanceToRight_pctOfVideoWidth: Number(firstRightPctOfWidth.toFixed(4)),
+    rectWidth_pctOfVideoWidth: Number(rectWidthPctOfWidth.toFixed(4)),
+    rectHeight_pctOfVideoHeight: Number(rectHeightPctOfHeight.toFixed(4))
+  };
+  console.log('[监控区域] 四点百分比(相对视频原始宽高 videoWidth/videoHeight):', payload);
+  proxy?.$modal.msgSuccess(
+    `已采集(相对原视频)：顶距${payload.firstPointTopOffset_pctOfVideoHeight}% 右距${payload.firstPointDistanceToRight_pctOfVideoWidth}% 框宽${payload.rectWidth_pctOfVideoWidth}% 框高${payload.rectHeight_pctOfVideoHeight}%`
+  );
+};
+
 /** 删除按钮操作 */
 const handleDelete = async (row?: DemoVO) => {
   const _ids = row?.id || ids.value;
@@ -333,12 +463,21 @@ onMounted(() => {
   min-height: 0;
   width: 100%;
   display: flex;
-  align-items: center;
+  align-items: stretch;
   justify-content: center;
   background: #000;
 }
 
+.monitor-video-stack {
+  position: relative;
+  flex: 1;
+  min-height: 0;
+  width: 100%;
+}
+
 .monitor-video {
+  position: absolute;
+  inset: 0;
   width: 100%;
   height: 100%;
   max-width: 100%;
@@ -346,4 +485,33 @@ onMounted(() => {
   object-fit: contain; //cover裁剪
   background: #000;
 }
+
+.monitor-draw-overlay {
+  position: absolute;
+  inset: 0;
+  z-index: 2;
+  cursor: crosshair;
+  background: transparent;
+}
+
+.monitor-draw-rect {
+  position: absolute;
+  z-index: 3;
+  pointer-events: none;
+  box-sizing: border-box;
+  border: 2px dashed #2563eb;
+  background: rgba(37, 99, 235, 0.1);
+}
+
+.monitor-draw-label {
+  position: absolute;
+  z-index: 4;
+  pointer-events: none;
+  transform: translate(-50%, -100%);
+  margin-top: -6px;
+  color: #2563eb;
+  font-size: 14px;
+  font-weight: 600;
+  white-space: nowrap;
+}
 </style>