2026-05-24-16-28-58 修正可见构件导出与高精度映射

WebSite/server.ts

@@ -142,6 +142,7 @@ const dicomVolumeCache = new Map<string, {
 }>();
 const modelPreviewCache = new Map<string, unknown>();
 const defaultModuleColors = ['#3b82f6', '#22c55e', '#f59e0b', '#ef4444', '#8b5cf6', '#14b8a6', '#f97316', '#64748b', '#ec4899'];
+const maxPreviewTriangles = 500000;
 const defaultModelPose: ModelPoseValue = {
   rotateX: 0,
   rotateY: 0,
@@ -1601,6 +1602,22 @@ function parseModelPoseQuery(raw: unknown) {
   }
 }
 
+function parseModuleStylesQuery(raw: unknown) {
+  if (typeof raw !== 'string' || !raw.trim()) {
+    return undefined;
+  }
+
+  try {
+    const parsed = JSON.parse(raw) as unknown;
+    if (!parsed || typeof parsed !== 'object' || Array.isArray(parsed)) {
+      return undefined;
+    }
+    return parsed as Record<string, Partial<ModuleStyleRecord>>;
+  } catch {
+    return undefined;
+  }
+}
+
 function parseSegmentationScope(raw: unknown): SegmentationExportScope {
   return raw === 'all' ? 'all' : 'visible';
 }
@@ -1613,15 +1630,20 @@ function latestSegmentationResult(project: ProjectRecord) {
   return project.segmentationResults?.[project.segmentationResults.length - 1];
 }
 
-function projectWithSegmentationResultStyles(project: ProjectRecord): ProjectRecord {
+function projectWithSegmentationResultStyles(
+  project: ProjectRecord,
+  requestedModuleStyles?: Record<string, Partial<ModuleStyleRecord>>,
+): ProjectRecord {
   const latestResult = latestSegmentationResult(project);
-  if (!latestResult) {
-    return project;
-  }
+  const mergedStyles = buildModuleStyles(project.stlFiles, {
+    ...(latestResult?.moduleStyles ?? {}),
+    ...(project.moduleStyles ?? {}),
+    ...(requestedModuleStyles ?? {}),
+  });
 
   return {
     ...project,
-    moduleStyles: latestResult.moduleStyles,
+    moduleStyles: mergedStyles,
   };
 }
 
@@ -2385,7 +2407,7 @@ function createStlPreview(filePath: string, fileName: string, limit: number): Mo
     throw new Error('当前仅支持二进制 STL 预览');
   }
 
-  const sampleLimit = Math.max(100, Math.min(limit, 200000));
+  const sampleLimit = Math.max(100, Math.min(limit, maxPreviewTriangles));
   const step = Math.max(1, Math.ceil(triangleCount / sampleLimit));
   const vertices: number[] = [];
   let sampledTriangles = 0;
@@ -3234,7 +3256,7 @@ async function startServer() {
 
     const requestedTarget = targetOverride ?? String(req.query.target ?? 'segmentation');
     const target = requestedTarget === 'dicom' || requestedTarget === 'pose' ? requestedTarget : 'segmentation';
-    const exportProject = projectWithSegmentationResultStyles(project);
+    const exportProject = projectWithSegmentationResultStyles(project, parseModuleStylesQuery(req.query.moduleStyles));
     const latestResult = latestSegmentationResult(project);
     const activePose = parseModelPoseQuery(req.query.pose) ?? latestResult?.pose;
     const segmentationScope = req.query.segmentationScope === undefined
@@ -3286,7 +3308,7 @@ async function startServer() {
       return;
     }
 
-    const exportProject = projectWithSegmentationResultStyles(project);
+    const exportProject = projectWithSegmentationResultStyles(project, parseModuleStylesQuery(req.query.moduleStyles));
     const latestResult = latestSegmentationResult(project);
     const activePose = parseModelPoseQuery(req.query.pose) ?? latestResult?.pose;
     const segmentationScope = req.query.segmentationScope === undefined