Initial commit: 大陆架零部件智能生产线数字孪生系统

- 实现TV1和TV2双大屏展示
- 集成ECharts数据可视化
- 实现实时数据刷新机制
- 添加刀具寿命管理模块
- 添加工单加工时长统计模块
- 添加加工中心7日工作时长统计模块
- 添加OEE分析、设备状态监控等功能
- 创建技术文档和使用说明书

src/components/DMT/libs/bvh/workers/generateMeshBVH.worker.js

@@ -0,0 +1,78 @@
+import {
+  BufferGeometry,
+  BufferAttribute
+} from 'three'
+import { MeshBVH } from '../core/MeshBVH.js'
+
+onmessage = ({ data }) => {
+  let prevTime = performance.now()
+  function onProgressCallback(progress) {
+    // account for error
+    progress = Math.min(progress, 1)
+
+    const currTime = performance.now()
+    if (currTime - prevTime >= 10 && progress !== 1.0) {
+      postMessage({
+
+        error: null,
+        serialized: null,
+        position: null,
+        progress
+
+      })
+      prevTime = currTime
+    }
+  }
+
+  const { index, position, options } = data
+  try {
+    const geometry = new BufferGeometry()
+    geometry.setAttribute('position', new BufferAttribute(position, 3, false))
+    if (index) {
+      geometry.setIndex(new BufferAttribute(index, 1, false))
+    }
+
+    if (options.includedProgressCallback) {
+      options.onProgress = onProgressCallback
+    }
+
+    if (options.groups) {
+      const groups = options.groups
+      for (const i in groups) {
+        const group = groups[ i ]
+        geometry.addGroup(group.start, group.count, group.materialIndex)
+      }
+    }
+
+    const bvh = new MeshBVH(geometry, options)
+    const serialized = MeshBVH.serialize(bvh, { copyIndexBuffer: false })
+    let toTransfer = [position.buffer, ...serialized.roots]
+    if (serialized.index) {
+      toTransfer.push(serialized.index.buffer)
+    }
+
+    toTransfer = toTransfer.filter(v => (typeof SharedArrayBuffer === 'undefined') || !(v instanceof SharedArrayBuffer))
+
+    if (bvh._indirectBuffer) {
+      toTransfer.push(serialized.indirectBuffer.buffer)
+    }
+
+    postMessage({
+
+      error: null,
+      serialized,
+      position,
+      progress: 1
+
+    }, toTransfer)
+  } catch (error) {
+    postMessage({
+
+      error,
+      serialized: null,
+      position: null,
+      progress: 1
+
+    })
+  }
+}