UI升级改动

src/services/processing_service.py

@@ -176,6 +176,7 @@ class ProcessingService:
             )
 
             pointcloud_data = None
+            lod_data = None
             if mesh_result:
                 pointcloud_data = {
                     "points": mesh_result.get("points", []),
@@ -183,13 +184,25 @@ class ProcessingService:
                     "vertices": mesh_result.get("vertices", []),
                     "faces": mesh_result.get("faces", []),
                     "point_count": mesh_result.get("point_count", 0),
+                    "vertex_count": mesh_result.get("vertex_count", 0),
+                    "face_count": mesh_result.get("face_count", 0),
                 }
 
+            # 生成多级LOD数据（用于前端按距离切换精度）
+            try:
+                lod_result = self.mesh_generator.generate_multi_lod_mesh(shape)
+                if lod_result and lod_result.get("lods"):
+                    lod_data = lod_result
+                    logger.info(f"LOD数据生成成功: {len(lod_result['lods'])} 级 (面数: {[lod_result['lods'][k]['face_count'] for k in sorted(lod_result['lods'].keys())]})")
+            except Exception as lod_err:
+                logger.warning(f"LOD数据生成失败，使用单级精度: {lod_err}")
+
             detailed_cavity_json = await self._attach_scheme_previews(
                 detailed_cavity_json=detailed_cavity_json,
                 geometry_data=geometry_data,
                 stp_filename=Path(file_path).name,
                 pointcloud_data=pointcloud_data,
+                lod_data=lod_data,
             )
 
             best_scheme = CalculationService.get_best_scheme(detailed_cavity_json)
@@ -206,6 +219,7 @@ class ProcessingService:
                 Path(file_path).name,
                 cavity_data=best_cavity_data,
                 pointcloud_data=pointcloud_data,
+                lod_data=lod_data,
             )
 
             await self.storage_service.save_html_file(
@@ -405,6 +419,7 @@ class ProcessingService:
         geometry_data: Dict[str, Any],
         stp_filename: str,
         pointcloud_data: Optional[Dict[str, Any]] = None,
+        lod_data: Optional[Dict[str, Any]] = None,
     ) -> Dict[str, Any]:
         """为每个候选分模方案生成独立HTML预览链接。"""
         candidate_schemes = detailed_cavity_json.get("candidate_schemes", [])
@@ -422,6 +437,7 @@ class ProcessingService:
                 cavity_data=cavity_data,
                 pointcloud_data=pointcloud_data,
                 suffix=suffix,
+                lod_data=lod_data,
             )
             scheme["html_file"] = f"/html/{Path(html_path).name}"