2026-05-20-14-19-23 逆向分割结果流程调整

WebSite/server.ts

@@ -11,6 +11,8 @@ type DicomPlane = 'axial' | 'sagittal' | 'coronal';
 type DicomDisplayMode = 'default' | 'bone' | 'soft' | 'contrast';
 type ProjectExportTarget = 'dicom' | 'segmentation' | 'pose' | 'stl';
 type SegmentationExportScope = 'all' | 'visible';
+type SegmentationDisplayLevel = 'standard' | 'fine' | 'ultra' | 'solid';
+type SegmentationDicomOpacityLevel = 'low' | 'medium' | 'high';
 
 interface ModuleStyleRecord {
   visible: boolean;
@@ -42,6 +44,13 @@ interface SegmentationResultRecord {
   segmentationScope: SegmentationExportScope;
   pose: ModelPoseValue;
   moduleStyles: Record<string, ModuleStyleRecord>;
+  sliceStart: number;
+  sliceEnd: number;
+  mappingSlice: number;
+  displayLevel: SegmentationDisplayLevel;
+  dicomOpacityLevel: SegmentationDicomOpacityLevel;
+  showBounds: boolean;
+  cutEnabled: boolean;
 }
 
 interface UserRecord {
@@ -285,30 +294,51 @@ function normalizeSegmentationResults(
   existing: Partial<SegmentationResultRecord>[] | undefined,
   stlFiles: string[],
   currentModuleStyles: Record<string, ModuleStyleRecord>,
+  dicomCount = 0,
 ) {
   if (!Array.isArray(existing)) {
     return [];
   }
 
+  const maxSlice = Math.max(dicomCount - 1, 0);
+  const normalizeSlice = (value: unknown, fallback: number) => (
+    typeof value === 'number' && Number.isFinite(value)
+      ? clampNumber(Math.round(value), 0, maxSlice)
+      : clampNumber(fallback, 0, maxSlice)
+  );
+  const normalizeDisplayLevel = (value: unknown): SegmentationDisplayLevel => (
+    value === 'fine' || value === 'ultra' || value === 'solid' ? value : 'standard'
+  );
+  const normalizeDicomOpacityLevel = (value: unknown): SegmentationDicomOpacityLevel => (
+    value === 'medium' || value === 'high' ? value : 'low'
+  );
+
   return existing
     .map((record, index): SegmentationResultRecord => {
       const rawStyles = record?.moduleStyles && typeof record.moduleStyles === 'object' && !Array.isArray(record.moduleStyles)
         ? record.moduleStyles
         : currentModuleStyles;
+      const sliceStart = normalizeSlice(record?.sliceStart, 0);
+      const sliceEnd = normalizeSlice(record?.sliceEnd, maxSlice);
       return {
         id: typeof record?.id === 'string' && record.id.trim()
           ? record.id.trim().slice(0, 80)
           : `segmentation-${index}`,
-        name: typeof record?.name === 'string' && record.name.trim()
-          ? record.name.trim().slice(0, 80)
-          : `分割结果 ${index + 1}`,
+        name: '逆向分割结果',
         createdAt: typeof record?.createdAt === 'string' && record.createdAt.trim() ? record.createdAt : now(),
         segmentationScope: record?.segmentationScope === 'all' ? 'all' : 'visible',
         pose: normalizeModelPoseValue(record?.pose),
         moduleStyles: buildModuleStyles(stlFiles, rawStyles),
+        sliceStart,
+        sliceEnd,
+        mappingSlice: normalizeSlice(record?.mappingSlice, sliceEnd),
+        displayLevel: normalizeDisplayLevel(record?.displayLevel),
+        dicomOpacityLevel: normalizeDicomOpacityLevel(record?.dicomOpacityLevel),
+        showBounds: typeof record?.showBounds === 'boolean' ? record.showBounds : true,
+        cutEnabled: typeof record?.cutEnabled === 'boolean' ? record.cutEnabled : false,
       };
     })
-    .slice(-20);
+    .slice(-1);
 }
 
 function buildDefaultProject(): ProjectRecord {
@@ -382,7 +412,7 @@ function normalizeState(state: AppState): AppState {
             maskFormats: project.maskFormats ?? ['nii', 'nii.gz'],
             moduleStyles,
             modelPoses: normalizeModelPoses(project.modelPoses),
-            segmentationResults: normalizeSegmentationResults(project.segmentationResults, stlFiles, moduleStyles),
+            segmentationResults: normalizeSegmentationResults(project.segmentationResults, stlFiles, moduleStyles, project.dicomCount ?? 0),
           };
         })
     : [];
@@ -401,6 +431,7 @@ function normalizeState(state: AppState): AppState {
           savedDefaultProject?.segmentationResults,
           defaultProject.stlFiles,
           defaultModuleStyles,
+          defaultProject.dicomCount,
         ),
       },
       ...customProjects,
@@ -1135,6 +1166,22 @@ function parseSegmentationScope(raw: unknown): SegmentationExportScope {
   return raw === 'all' ? 'all' : 'visible';
 }
 
+function latestSegmentationResult(project: ProjectRecord) {
+  return project.segmentationResults?.[project.segmentationResults.length - 1];
+}
+
+function projectWithSegmentationResultStyles(project: ProjectRecord): ProjectRecord {
+  const latestResult = latestSegmentationResult(project);
+  if (!latestResult) {
+    return project;
+  }
+
+  return {
+    ...project,
+    moduleStyles: latestResult.moduleStyles,
+  };
+}
+
 function parseExportTargets(raw: unknown): ProjectExportTarget[] {
   const values = typeof raw === 'string' ? raw.split(',') : [];
   const targets = values.filter((value): value is ProjectExportTarget => (
@@ -2071,17 +2118,26 @@ async function startServer() {
       : project.moduleStyles;
     const record: SegmentationResultRecord = {
       id: `segmentation-${Date.now().toString(36)}-${Math.random().toString(36).slice(2, 7)}`,
-      name: rawName || `分割结果 ${project.segmentationResults.length + 1}`,
+      name: rawName || '逆向分割结果',
       createdAt: now(),
       segmentationScope: parseSegmentationScope(req.body?.segmentationScope),
       pose: normalizeModelPoseValue(req.body?.pose as Partial<ModelPoseValue> | undefined),
       moduleStyles: buildModuleStyles(project.stlFiles, rawStyles),
+      sliceStart: Number(req.body?.sliceStart),
+      sliceEnd: Number(req.body?.sliceEnd),
+      mappingSlice: Number(req.body?.mappingSlice),
+      displayLevel: req.body?.displayLevel as SegmentationDisplayLevel,
+      dicomOpacityLevel: req.body?.dicomOpacityLevel as SegmentationDicomOpacityLevel,
+      showBounds: typeof req.body?.showBounds === 'boolean' ? req.body.showBounds : true,
+      cutEnabled: typeof req.body?.cutEnabled === 'boolean' ? req.body.cutEnabled : false,
     };
 
+    project.moduleStyles = record.moduleStyles;
     project.segmentationResults = normalizeSegmentationResults(
-      [...(project.segmentationResults ?? []), record],
+      [record],
       project.stlFiles,
-      project.moduleStyles,
+      record.moduleStyles,
+      project.dicomCount,
     );
     writeState(state);
     res.status(201).json(project);
@@ -2276,12 +2332,16 @@ async function startServer() {
 
     const requestedTarget = targetOverride ?? String(req.query.target ?? 'segmentation');
     const target = requestedTarget === 'dicom' || requestedTarget === 'pose' ? requestedTarget : 'segmentation';
-    const activePose = parseModelPoseQuery(req.query.pose);
-    const segmentationScope = parseSegmentationScope(req.query.segmentationScope);
+    const exportProject = projectWithSegmentationResultStyles(project);
+    const latestResult = latestSegmentationResult(project);
+    const activePose = parseModelPoseQuery(req.query.pose) ?? latestResult?.pose;
+    const segmentationScope = req.query.segmentationScope === undefined
+      ? latestResult?.segmentationScope ?? 'visible'
+      : parseSegmentationScope(req.query.segmentationScope);
 
     try {
       if (target === 'pose') {
-        const posePayload = createPoseExport(project, activePose);
+        const posePayload = createPoseExport(exportProject, activePose);
         const filename = `${project.id}-pose-data.json`;
         fs.writeFileSync(path.join(exportDir, filename), posePayload);
         res.setHeader('Content-Type', 'application/json; charset=utf-8');
@@ -2293,7 +2353,7 @@ async function startServer() {
       const files = getProjectDicomFiles(project);
       const format = req.query.format === 'nii' ? 'nii' : 'nii.gz';
       const compressed = format === 'nii.gz';
-      const payload = createNiftiExport(project, files, target, compressed, activePose, segmentationScope);
+      const payload = createNiftiExport(exportProject, files, target, compressed, activePose, segmentationScope);
       const suffix = target === 'dicom' ? 'dicom-image' : 'segmentation-label';
       const filename = `${project.id}-${suffix}.${format}`;
       fs.writeFileSync(path.join(exportDir, filename), payload);
@@ -2323,15 +2383,19 @@ async function startServer() {
       return;
     }
 
-    const activePose = parseModelPoseQuery(req.query.pose);
-    const segmentationScope = parseSegmentationScope(req.query.segmentationScope);
+    const exportProject = projectWithSegmentationResultStyles(project);
+    const latestResult = latestSegmentationResult(project);
+    const activePose = parseModelPoseQuery(req.query.pose) ?? latestResult?.pose;
+    const segmentationScope = req.query.segmentationScope === undefined
+      ? latestResult?.segmentationScope ?? 'visible'
+      : parseSegmentationScope(req.query.segmentationScope);
     const format = req.query.format === 'nii' ? 'nii' : 'nii.gz';
     const compressed = format === 'nii.gz';
 
     try {
       const files = getProjectDicomFiles(project);
       const payload = createProjectExportBundle({
-        project,
+        project: exportProject,
         files,
         targets,
         compressed,

WebSite/src/App.tsx

@@ -8,7 +8,7 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-import React, { useState, useEffect } from 'react';
+import React, { useState, useEffect, useRef } from 'react';
 import { AnimatePresence, motion } from 'motion/react';
 import Login from './components/Login';
 import Sidebar from './components/Sidebar';
@@ -25,6 +25,8 @@ export default function App() {
   const [activeView, setActiveView] = useState<ViewType>(ViewType.OVERVIEW);
   const [sidebarCollapsed, setSidebarCollapsed] = useState(false);
   const [activeProjectId, setActiveProjectId] = useState('head-ct-demo');
+  const [projectLibraryInitialView, setProjectLibraryInitialView] = useState<'dicom' | 'model' | 'mask'>('dicom');
+  const workspaceLeaveGuardRef = useRef<(() => Promise<boolean>) | null>(null);
 
   // Automatically collapse main sidebar when entering Project Library or Workspace
   useEffect(() => {
@@ -71,7 +73,40 @@ export default function App() {
     setIsAuthenticated(true);
   };
 
+  const requestActiveView = (nextView: ViewType) => {
+    if (nextView === activeView) {
+      return;
+    }
+
+    const leaveWorkspace = activeView === ViewType.WORKSPACE && nextView !== ViewType.WORKSPACE;
+    const switchView = () => {
+      if (leaveWorkspace && nextView === ViewType.PROJECTS) {
+        setProjectLibraryInitialView('mask');
+      }
+      setActiveView(nextView);
+    };
+
+    if (!leaveWorkspace || !workspaceLeaveGuardRef.current) {
+      switchView();
+      return;
+    }
+
+    workspaceLeaveGuardRef.current()
+      .then((canLeave) => {
+        if (canLeave) {
+          switchView();
+        }
+      })
+      .catch(() => undefined);
+  };
+
   const handleLogout = async () => {
+    if (activeView === ViewType.WORKSPACE && workspaceLeaveGuardRef.current) {
+      const canLeave = await workspaceLeaveGuardRef.current();
+      if (!canLeave) {
+        return;
+      }
+    }
     await api.logout();
     setIsAuthenticated(false);
     setActiveView(ViewType.OVERVIEW);
@@ -93,7 +128,7 @@ export default function App() {
     <div className="flex h-screen bg-[#f8fafc] overflow-hidden font-sans antialiased text-slate-900">
       <Sidebar 
         activeView={activeView} 
-        setActiveView={setActiveView} 
+        setActiveView={requestActiveView} 
         onLogout={handleLogout}
         collapsed={sidebarCollapsed}
         setCollapsed={setSidebarCollapsed}
@@ -129,13 +164,21 @@ export default function App() {
               {activeView === ViewType.OVERVIEW && <Overview />}
               {activeView === ViewType.PROJECTS && (
                 <ProjectLibrary 
+                  initialViewMode={projectLibraryInitialView}
                   onReverse={(projectId) => {
                     setActiveProjectId(projectId);
                     setActiveView(ViewType.WORKSPACE);
                   }} 
                 />
               )}
-              {activeView === ViewType.WORKSPACE && <ReverseWorkspace projectId={activeProjectId} />}
+              {activeView === ViewType.WORKSPACE && (
+                <ReverseWorkspace
+                  projectId={activeProjectId}
+                  onLeaveGuardChange={(handler) => {
+                    workspaceLeaveGuardRef.current = handler;
+                  }}
+                />
+              )}
               {activeView === ViewType.SYSTEM && <UserManagement />}
             </motion.div>
           </AnimatePresence>

WebSite/src/components/ProjectLibrary.tsx

@@ -22,7 +22,7 @@ import {
 } from 'lucide-react';
 import * as THREE from 'three';
 import { DicomInfo, DicomPreview, ModuleStyle, Project, SegmentationExportScope } from '../types';
-import { api, downloadDicomArchive, downloadMask, downloadProjectExportBundle, ProjectExportTarget } from '../lib/api';
+import { api, downloadDicomArchive, downloadProjectExportBundle, ProjectExportTarget } from '../lib/api';
 
 type Plane = 'axial' | 'sagittal' | 'coronal';
 type DisplayMode = DicomPreview['mode'];
@@ -655,6 +655,7 @@ export default function ProjectLibrary({
   const [modelPose, setModelPose] = useState<ModelPose>(defaultModelPose);
   const [moduleStyles, setModuleStyles] = useState<Record<string, ModuleStyle>>({});
   const [dicomPreview, setDicomPreview] = useState<DicomPreview | null>(null);
+  const [resultDicomPreview, setResultDicomPreview] = useState<DicomPreview | null>(null);
   const [dicomInfo, setDicomInfo] = useState<DicomInfo | null>(null);
   const [dicomInfoError, setDicomInfoError] = useState('');
   const [isDicomInfoOpen, setIsDicomInfoOpen] = useState(false);
@@ -746,6 +747,23 @@ export default function ProjectLibrary({
   const selectedSolidity = solidityOptions.find((option) => option.id === solidityLevel) ?? solidityOptions[0];
   const savedSegmentationResults = selectedProject?.segmentationResults ?? [];
   const latestSegmentationResult = savedSegmentationResults[savedSegmentationResults.length - 1];
+  const latestResultPose = latestSegmentationResult?.pose ?? modelPose;
+  const latestResultStyles = latestSegmentationResult?.moduleStyles ?? moduleStyles;
+  const resultMaxSlice = Math.max((selectedProject?.dicomCount ?? 1) - 1, 0);
+  const resultMappingSlice = Math.max(0, Math.min(resultMaxSlice, latestSegmentationResult?.mappingSlice ?? resultMaxSlice));
+  const resultVisibleModules = stlFiles
+    .map((fileName, index) => ({
+      fileName,
+      name: fileName.replace(/\.stl$/i, ''),
+      style: latestResultStyles[fileName] ?? {
+        visible: true,
+        color: defaultModuleColors[index % defaultModuleColors.length],
+        opacity: 0.72,
+        partId: index + 1,
+      },
+    }))
+    .filter(({ style }) => style.visible !== false);
+  const readonlyPoseChange = useMemo<React.Dispatch<React.SetStateAction<ModelPose>>>(() => () => undefined, []);
 
   const makeDefaultModuleStyle = (index: number, fallback?: Partial<ModuleStyle>): ModuleStyle => ({
     visible: fallback?.visible ?? true,
@@ -802,13 +820,14 @@ export default function ProjectLibrary({
   }, [initialViewMode]);
 
   useEffect(() => {
+    const latestResult = selectedProject?.segmentationResults?.[selectedProject.segmentationResults.length - 1];
     const next: Record<string, ModuleStyle> = {};
     stlFiles.forEach((fileName, index) => {
-      next[fileName] = makeDefaultModuleStyle(index, selectedProject?.moduleStyles?.[fileName] ?? moduleStyles[fileName]);
+      next[fileName] = makeDefaultModuleStyle(index, latestResult?.moduleStyles?.[fileName] ?? selectedProject?.moduleStyles?.[fileName] ?? moduleStyles[fileName]);
     });
     setModuleStyles(next);
     setSliceIndex(0);
-    setModelPose(defaultModelPose);
+    setModelPose(latestResult?.pose ?? defaultModelPose);
   }, [selectedProject?.id]);
 
   useEffect(() => {
@@ -843,6 +862,32 @@ export default function ProjectLibrary({
     };
   }, [selectedProject?.id, selectedProject?.dicomCount, sliceIndex, plane, displayMode, viewMode]);
 
+  useEffect(() => {
+    if (!selectedProject || viewMode !== 'mask' || !selectedProject.dicomCount) {
+      setResultDicomPreview(null);
+      return;
+    }
+
+    let cancelled = false;
+    const maxSlice = Math.max(selectedProject.dicomCount - 1, 0);
+    const previewSlice = Math.max(0, Math.min(maxSlice, latestSegmentationResult?.mappingSlice ?? maxSlice));
+    api.getDicomPreview(selectedProject.id, previewSlice, 'axial', 'soft')
+      .then((preview) => {
+        if (!cancelled) {
+          setResultDicomPreview(preview);
+        }
+      })
+      .catch(() => {
+        if (!cancelled) {
+          setResultDicomPreview(null);
+        }
+      });
+
+    return () => {
+      cancelled = true;
+    };
+  }, [selectedProject?.id, selectedProject?.dicomCount, viewMode, latestSegmentationResult?.id, latestSegmentationResult?.mappingSlice]);
+
   useEffect(() => () => {
     if (sliceRepeatRef.current !== null) {
       window.clearInterval(sliceRepeatRef.current);
@@ -1026,7 +1071,7 @@ export default function ProjectLibrary({
   const tabs = [
     { id: 'dicom' as const, label: 'DICOM 影像', icon: ImageIcon },
     { id: 'model' as const, label: '3D 模型', icon: Box },
-    { id: 'mask' as const, label: '分割结果', icon: Layers },
+    { id: 'mask' as const, label: '逆向分割结果', icon: Layers },
   ];
 
   return (
@@ -1500,61 +1545,104 @@ export default function ProjectLibrary({
               )}
 
               {viewMode === 'mask' && (
-                <div className="h-full grid grid-cols-1 gap-6 lg:grid-cols-[1fr_360px]">
-                  <div className="rounded-2xl border border-slate-100 bg-slate-950 p-4 text-white shadow-sm">
-                    <div className="mb-4 flex items-center justify-between gap-3">
-                      <div>
-                        <h3 className="font-bold">分割结果</h3>
-                        <p className="mt-1 text-[11px] font-bold text-white/40">
-                          来自逆向工作区保存的 Label Map 复核记录
+                <div className="h-full grid grid-cols-1 gap-6 xl:grid-cols-[minmax(0,1fr)_340px]">
+                  <div className="grid min-h-0 grid-cols-1 gap-4 lg:grid-cols-2">
+                    <div className="relative min-h-[520px] overflow-hidden rounded-2xl border border-slate-900 bg-slate-950 text-white shadow-sm">
+                      <div className="absolute left-4 top-4 z-10 rounded-xl border border-white/10 bg-black/45 px-3 py-2 backdrop-blur">
+                        <p className="text-sm font-bold">影像与模型融合视角</p>
+                        <p className="mt-1 font-mono text-[10px] text-white/45">
+                          {latestSegmentationResult ? `Z ${resultMappingSlice + 1}/${selectedProject.dicomCount}` : '等待保存结果'}
                         </p>
                       </div>
-                      <span className="rounded-lg border border-white/10 bg-white/5 px-2 py-1 font-mono text-[10px] text-cyan-100">
-                        {savedSegmentationResults.length} 条
-                      </span>
+                      {latestSegmentationResult ? (
+                        <NativeStlViewer
+                          projectId={selectedProject.id}
+                          files={stlFiles}
+                          styles={latestResultStyles}
+                          detailLimit={selectedSolidity.limit}
+                          solidMode={solidityLevel === 'solid'}
+                          pose={latestResultPose}
+                          onPoseChange={readonlyPoseChange}
+                        />
+                      ) : (
+                        <div className="flex h-full items-center justify-center px-8 text-center text-sm font-bold text-white/35">
+                          暂无保存结果，请在逆向工作区保存当前映射。
+                        </div>
+                      )}
                     </div>
 
-                    {savedSegmentationResults.length ? (
-                      <div className="grid gap-3 md:grid-cols-2">
-                        {savedSegmentationResults.map((result, index) => (
-                          <div key={result.id} className="rounded-xl border border-white/10 bg-white/[0.04] p-3">
-                            <div className="mb-2 flex items-center justify-between gap-2">
-                              <p className="min-w-0 truncate text-sm font-bold">{result.name}</p>
-                              <span className="rounded bg-cyan-400/15 px-1.5 py-0.5 font-mono text-[9px] text-cyan-100">
-                                #{index + 1}
-                              </span>
-                            </div>
-                            <div className="grid grid-cols-2 gap-2 text-[10px] font-bold text-white/45">
-                              <span>范围：{result.segmentationScope === 'all' ? '所有类别' : '可见类别'}</span>
-                              <span className="text-right">{new Date(result.createdAt).toLocaleString('zh-CN', { hour12: false })}</span>
-                              <span className="font-mono">RX {result.pose.rotateX.toFixed(0)}°</span>
-                              <span className="text-right font-mono">TZ {result.pose.translateZ.toFixed(3)}</span>
+                    <div className="relative min-h-[520px] overflow-hidden rounded-2xl border border-slate-900 bg-black text-white shadow-sm">
+                      <div className="absolute left-4 top-4 z-10 flex flex-wrap gap-2">
+                        <span className="rounded-lg border border-white/10 bg-black/50 px-2.5 py-1 font-mono text-[10px] font-bold text-white/70 backdrop-blur">
+                          BASE DICOM
+                        </span>
+                        <span className="rounded-lg border border-cyan-300/40 bg-cyan-400/15 px-2.5 py-1 font-mono text-[10px] font-bold text-cyan-100 backdrop-blur">
+                          OVERLAY LABEL MAP
+                        </span>
+                        <span className="rounded-lg border border-white/10 bg-black/50 px-2.5 py-1 font-mono text-[10px] font-bold text-white/70 backdrop-blur">
+                          Z {resultMappingSlice + 1}/{selectedProject.dicomCount}
+                        </span>
+                      </div>
+                      <div className="absolute inset-0 flex items-center justify-center p-8">
+                        {latestSegmentationResult && resultDicomPreview ? (
+                          <div className="relative flex h-full w-full items-center justify-center">
+                            <DicomCanvas preview={resultDicomPreview} rotation={0} />
+                            <div className="pointer-events-none absolute inset-x-10 bottom-10 rounded-2xl border border-white/10 bg-black/55 p-3 backdrop-blur">
+                              <div className="mb-2 flex items-center justify-between gap-3 text-[11px] font-bold text-white/70">
+                                <span>当前切片构件</span>
+                                <span className="font-mono text-cyan-100">{resultVisibleModules.length} 个构件</span>
+                              </div>
+                              <div className="grid grid-cols-2 gap-2">
+                                {resultVisibleModules.slice(0, 8).map(({ fileName, name, style }) => (
+                                  <div key={fileName} className="flex min-w-0 items-center gap-2 rounded-lg bg-white/5 px-2 py-1">
+                                    <span className="h-2.5 w-2.5 shrink-0 rounded-full" style={{ backgroundColor: style.color }} />
+                                    <span className="min-w-0 flex-1 truncate text-[10px] font-bold text-white/75">{name}</span>
+                                    <span className="font-mono text-[9px] text-white/45">ID {style.partId}</span>
+                                  </div>
+                                ))}
+                              </div>
                             </div>
                           </div>
-                        ))}
+                        ) : (
+                          <p className="text-center text-sm font-bold text-white/30">
+                            {latestSegmentationResult ? '正在载入逆向分割映射视图...' : '暂无逆向分割映射视图'}
+                          </p>
+                        )}
                       </div>
-                    ) : (
-                      <div className="flex h-[420px] items-center justify-center rounded-2xl border border-dashed border-white/15 bg-white/[0.03] px-6 text-center text-sm font-bold text-white/35">
-                        暂无保存的分割结果，请在逆向工作区点击“保存至项目库”。
-                      </div>
-                    )}
+                    </div>
                   </div>
 
                   <div className="flex flex-col gap-4">
                     <div className="rounded-2xl border border-slate-100 bg-slate-50 p-5">
-                      <h3 className="mb-3 font-bold text-slate-800">导出分割包</h3>
-                      <p className="text-sm leading-6 text-slate-500">
-                        默认使用最新保存的分割结果位姿；可选择导出 DICOM、Label Map、位姿数据与原始 STL。
-                      </p>
+                      <div className="flex items-start justify-between gap-3">
+                        <div>
+                          <h3 className="font-bold text-slate-800">逆向分割结果</h3>
+                          <p className="mt-2 text-sm leading-6 text-slate-500">
+                            项目库仅保留最新一次保存结果，导出时默认沿用该结果的位姿、构件样式与类别范围。
+                          </p>
+                        </div>
+                        <span className={`rounded-lg px-2 py-1 text-[10px] font-bold ${latestSegmentationResult ? 'bg-emerald-100 text-emerald-700' : 'bg-slate-200 text-slate-500'}`}>
+                          {latestSegmentationResult ? '已保存' : '未保存'}
+                        </span>
+                      </div>
+                      <div className="mt-4 grid grid-cols-2 gap-2 text-[10px] font-bold text-slate-500">
+                        <span className="rounded-lg bg-white px-2 py-2">切片：{selectedProject.dicomCount ? `${resultMappingSlice + 1}/${selectedProject.dicomCount}` : '--'}</span>
+                        <span className="rounded-lg bg-white px-2 py-2">类别：{latestSegmentationResult?.segmentationScope === 'all' ? '所有类别' : '可见类别'}</span>
+                        <span className="rounded-lg bg-white px-2 py-2">构件：{resultVisibleModules.length}</span>
+                        <span className="rounded-lg bg-white px-2 py-2">
+                          {latestSegmentationResult ? new Date(latestSegmentationResult.createdAt).toLocaleString('zh-CN', { hour12: false }) : '等待结果'}
+                        </span>
+                      </div>
                     </div>
+
                     <div className="relative">
                       <button
                         onClick={() => setShowMaskExportMenu((value) => !value)}
-                        disabled={maskExporting}
+                        disabled={maskExporting || !latestSegmentationResult}
                         className="flex w-full items-center justify-center gap-2 rounded-xl bg-emerald-600 px-5 py-3 text-sm font-bold text-white shadow-lg hover:bg-emerald-700 disabled:opacity-50"
                       >
                         <Download size={18} />
-                        {maskExporting ? '正在导出' : '导出全部 NII.GZ'}
+                        {maskExporting ? '正在导出' : '导出项目及结果'}
                       </button>
                       {showMaskExportMenu && (
                         <div className="absolute right-0 top-14 z-30 w-full rounded-2xl border border-slate-200 bg-white p-3 text-xs shadow-2xl">
@@ -1619,12 +1707,6 @@ export default function ProjectLibrary({
                         </div>
                       )}
                     </div>
-                    <button
-                      onClick={() => downloadMask(selectedProject.id, 'nii.gz', latestSegmentationResult?.pose ?? modelPose, maskSegmentationScope)}
-                      className="flex items-center justify-center gap-2 rounded-xl border border-slate-200 bg-white px-5 py-3 text-sm font-bold text-slate-700 hover:bg-slate-50"
-                    >
-                      <Download size={18} /> 仅下载 NII.GZ
-                    </button>
                   </div>
                 </div>
               )}

WebSite/src/components/ReverseWorkspace.tsx

@@ -1,4 +1,4 @@
-import React, { useEffect, useRef, useState } from 'react';
+import React, { useCallback, useEffect, useRef, useState } from 'react';
 import {
   Settings2,
   Download,
@@ -13,7 +13,7 @@ import {
 } from 'lucide-react';
 import * as THREE from 'three';
 import { DicomFusionVolume, DicomPreview, ModelPose, ModuleStyle, Project, SavedModelPose } from '../types';
-import { api, downloadMask, downloadProjectExportBundle, ProjectExportTarget, SegmentationExportScope } from '../lib/api';
+import { api, downloadProjectExportBundle, ProjectExportTarget, SegmentationExportScope } from '../lib/api';
 
 interface ModelPreviewPayload {
   fileName: string;
@@ -39,6 +39,7 @@ interface AxisVector2D {
 }
 
 type AxisProjection = Record<AxisKey, AxisVector2D>;
+type WorkspaceLeaveGuard = () => Promise<boolean>;
 
 const modelPoseKeys: ModelPoseKey[] = ['rotateX', 'rotateY', 'rotateZ', 'translateX', 'translateY', 'translateZ', 'scale'];
 
@@ -1930,7 +1931,13 @@ function VoxelizationMappingView({
   );
 }
 
-export default function ReverseWorkspace({ projectId }: { projectId: string }) {
+export default function ReverseWorkspace({
+  projectId,
+  onLeaveGuardChange,
+}: {
+  projectId: string;
+  onLeaveGuardChange?: (handler: WorkspaceLeaveGuard | null) => void;
+}) {
   const [sliceStart, setSliceStart] = useState(0);
   const [sliceEnd, setSliceEnd] = useState(49);
   const [mappingSlice, setMappingSlice] = useState(0);
@@ -1961,17 +1968,7 @@ export default function ReverseWorkspace({ projectId }: { projectId: string }) {
   const fusionVolumeCacheRef = useRef(new Map<string, DicomFusionVolume>());
   const poseRepeatRef = useRef<{ timeout: number | null; interval: number | null }>({ timeout: null, interval: null });
   const poseImportInputRef = useRef<HTMLInputElement | null>(null);
-
-  const handleExport = async (format: 'nii' | 'nii.gz') => {
-    setExporting(true);
-    try {
-      await downloadMask(projectId, format, modelPose, segmentationExportScope);
-    } catch (error) {
-      setFusionError(error instanceof Error ? error.message : '导出失败');
-    } finally {
-      setExporting(false);
-    }
-  };
+  const saveToastTimerRef = useRef<number | null>(null);
 
   const handleExportSelected = async () => {
     const selectedItems = exportOptions
@@ -1997,26 +1994,93 @@ export default function ReverseWorkspace({ projectId }: { projectId: string }) {
     }
   };
 
-  const handleSaveSegmentationResult = async () => {
+  const handleSaveSegmentationResult = useCallback(async (options: { showToast?: boolean } = {}) => {
     if (!project) {
-      return;
+      return false;
     }
 
     setFusionError('');
     setSaveStatus('');
     try {
       const updated = await api.saveProjectSegmentationResult(project.id, {
-        name: `分割结果 ${new Date().toLocaleString('zh-CN', { hour12: false })}`,
+        name: '逆向分割结果',
         pose: modelPose,
         segmentationScope: segmentationExportScope,
         moduleStyles,
+        sliceStart: clamp(sliceStart, 0, Math.max(project.dicomCount - 1, 0)),
+        sliceEnd: clamp(sliceEnd, 0, Math.max(project.dicomCount - 1, 0)),
+        mappingSlice: clamp(mappingSlice, 0, Math.max(project.dicomCount - 1, 0)),
+        displayLevel,
+        dicomOpacityLevel,
+        showBounds,
+        cutEnabled,
       });
       setProject(updated);
-      setSaveStatus('已保存至项目库的分割结果区域');
+      if (options.showToast !== false) {
+        setSaveStatus('已保存至项目库的分割结果区域');
+      }
+      return true;
     } catch (error) {
-      setFusionError(error instanceof Error ? error.message : '保存至项目库失败');
+      const message = error instanceof Error ? error.message : '保存至项目库失败';
+      setFusionError(message);
+      if (options.showToast === false) {
+        window.alert(message);
+      }
+      return false;
     }
-  };
+  }, [
+    project,
+    modelPose,
+    segmentationExportScope,
+    moduleStyles,
+    sliceStart,
+    sliceEnd,
+    mappingSlice,
+    displayLevel,
+    dicomOpacityLevel,
+    showBounds,
+    cutEnabled,
+  ]);
+
+  useEffect(() => {
+    if (!saveStatus) {
+      return undefined;
+    }
+
+    if (saveToastTimerRef.current !== null) {
+      window.clearTimeout(saveToastTimerRef.current);
+    }
+    saveToastTimerRef.current = window.setTimeout(() => {
+      setSaveStatus('');
+      saveToastTimerRef.current = null;
+    }, 2600);
+
+    return () => {
+      if (saveToastTimerRef.current !== null) {
+        window.clearTimeout(saveToastTimerRef.current);
+        saveToastTimerRef.current = null;
+      }
+    };
+  }, [saveStatus]);
+
+  useEffect(() => {
+    if (!onLeaveGuardChange) {
+      return undefined;
+    }
+
+    onLeaveGuardChange(async () => {
+      if (!project) {
+        return true;
+      }
+      const shouldSave = window.confirm('是否保存当前结果至项目库？\\n确定：保存后退出。\\n取消：直接退出，不保存当前结果。');
+      if (!shouldSave) {
+        return true;
+      }
+      return handleSaveSegmentationResult({ showToast: false });
+    });
+
+    return () => onLeaveGuardChange(null);
+  }, [handleSaveSegmentationResult, onLeaveGuardChange, project]);
 
   const makeDefaultModuleStyle = (index: number, fallback?: Partial<ModuleStyle>): ModuleStyle => ({
     visible: fallback?.visible ?? true,
@@ -2063,19 +2127,30 @@ export default function ReverseWorkspace({ projectId }: { projectId: string }) {
     api.getProject(projectId).then((item) => {
       setProject(item);
       const maxIndex = Math.max((item.dicomCount || 1) - 1, 0);
-      setSliceStart(0);
-      setSliceEnd(maxIndex);
-      setMappingSlice(maxIndex);
+      const latestResult = item.segmentationResults?.[item.segmentationResults.length - 1];
+      const restoredSliceStart = clamp(latestResult?.sliceStart ?? 0, 0, maxIndex);
+      const restoredSliceEnd = clamp(latestResult?.sliceEnd ?? maxIndex, 0, maxIndex);
+      const restoredMappingSlice = clamp(latestResult?.mappingSlice ?? restoredSliceEnd, 0, maxIndex);
+      setSliceStart(restoredSliceStart);
+      setSliceEnd(restoredSliceEnd);
+      setMappingSlice(restoredMappingSlice);
       const nextPoses = item.modelPoses?.length ? item.modelPoses : defaultSavedPoses;
       const preferredPose = nextPoses.find((pose) => pose.id === 'default') ?? nextPoses[0];
-      setModelPose(preferredPose?.pose ?? defaultModelPose);
+      const restoredPose = latestResult?.pose ?? preferredPose?.pose ?? defaultModelPose;
+      setModelPose(restoredPose);
+      setPoseValueDrafts(formatPoseDraftValues(restoredPose));
       const nextStyles: Record<string, ModuleStyle> = {};
       (item.stlFiles ?? []).forEach((fileName, index) => {
-        nextStyles[fileName] = makeDefaultModuleStyle(index, item.moduleStyles?.[fileName]);
+        nextStyles[fileName] = makeDefaultModuleStyle(index, latestResult?.moduleStyles?.[fileName] ?? item.moduleStyles?.[fileName]);
       });
       setModuleStyles(nextStyles);
       setSavedPoses(nextPoses);
-      setSelectedPoseId(preferredPose?.id ?? 'default');
+      setSelectedPoseId(latestResult ? 'reverse-result' : preferredPose?.id ?? 'default');
+      setSegmentationExportScope(latestResult?.segmentationScope ?? 'visible');
+      setDisplayLevel(latestResult?.displayLevel ?? 'standard');
+      setDicomOpacityLevel(latestResult?.dicomOpacityLevel ?? 'low');
+      setShowBounds(latestResult?.showBounds ?? true);
+      setCutEnabled(latestResult?.cutEnabled ?? false);
     }).catch(() => {
       setProject(null);
       setFusionVolume(null);
@@ -2336,6 +2411,19 @@ export default function ReverseWorkspace({ projectId }: { projectId: string }) {
 
   return (
     <div className="h-full min-h-0 overflow-y-auto pr-2 flex flex-col gap-6">
+      {saveStatus && (
+        <>
+          <style>
+            {`@keyframes reverse-result-toast { 0% { opacity: 0; transform: translate(-50%, -10px); } 14% { opacity: 1; transform: translate(-50%, 0); } 72% { opacity: 1; transform: translate(-50%, 0); } 100% { opacity: 0; transform: translate(-50%, -10px); } }`}
+          </style>
+          <div
+            className="fixed left-1/2 top-20 z-50 rounded-2xl border border-cyan-200 bg-white px-5 py-3 text-sm font-bold text-cyan-700 shadow-2xl shadow-cyan-950/10"
+            style={{ animation: 'reverse-result-toast 2.6s ease forwards' }}
+          >
+            {saveStatus}
+          </div>
+        </>
+      )}
       <div className="flex items-center justify-between">
         <div>
           {project && (
@@ -2348,6 +2436,14 @@ export default function ReverseWorkspace({ projectId }: { projectId: string }) {
           {!project && <p className="text-sm text-slate-500">配准 DICOM 影像与三维模型，生成像素映射关系</p>}
         </div>
         <div className="flex gap-2">
+          <button
+            onClick={() => void handleSaveSegmentationResult()}
+            disabled={!project}
+            className="bg-cyan-600 text-white px-5 py-2.5 rounded-xl text-sm font-semibold hover:bg-cyan-700 transition-all shadow-lg flex items-center gap-2 disabled:opacity-50"
+          >
+            <Save size={18} />
+            保存至项目库
+          </button>
           <div className="relative">
             <button
               onClick={() => setShowExportMenu((value) => !value)}
@@ -2355,7 +2451,7 @@ export default function ReverseWorkspace({ projectId }: { projectId: string }) {
               className="bg-emerald-600 text-white px-5 py-2.5 rounded-xl text-sm font-semibold hover:bg-emerald-700 transition-all shadow-lg flex items-center gap-2 disabled:opacity-50"
             >
               <Download size={18} />
-              {exporting ? '正在导出' : '导出全部 NII.GZ'}
+              {exporting ? '正在导出' : '导出项目及结果'}
             </button>
             {showExportMenu && (
               <div className="absolute right-0 top-12 z-30 w-72 rounded-2xl border border-slate-200 bg-white p-3 text-xs shadow-2xl">
@@ -2799,38 +2895,7 @@ export default function ReverseWorkspace({ projectId }: { projectId: string }) {
               <Layers size={18} className="text-cyan-500" />
               逆向分割映射视图
             </h3>
-            <div className="flex flex-wrap gap-2">
-              <button
-                onClick={handleSaveSegmentationResult}
-                disabled={!project}
-                className="bg-cyan-50 hover:bg-cyan-100 text-cyan-700 px-3 py-1 rounded-lg text-[10px] font-bold transition-all border border-cyan-100 flex items-center gap-1 disabled:opacity-50"
-              >
-                <Save size={12} />
-                保存至项目库
-              </button>
-              <button
-                onClick={() => handleExport('nii')}
-                disabled={exporting}
-                className="bg-slate-100 hover:bg-slate-200 text-slate-700 px-3 py-1 rounded-lg text-[10px] font-bold transition-all border border-slate-200 flex items-center gap-1 disabled:opacity-50"
-              >
-                <Download size={12} />
-                NII
-              </button>
-              <button
-                onClick={() => handleExport('nii.gz')}
-                disabled={exporting}
-                className="bg-slate-900 hover:bg-black text-white px-3 py-1 rounded-lg text-[10px] font-bold transition-all flex items-center gap-1 shadow-lg disabled:opacity-50"
-              >
-                <Download size={12} />
-                NII.GZ
-              </button>
-            </div>
           </div>
-          {saveStatus && (
-            <div className="rounded-xl border border-cyan-100 bg-cyan-50 px-3 py-2 text-[10px] font-bold text-cyan-700">
-              {saveStatus}
-            </div>
-          )}
 
           <VoxelizationMappingView
             project={project}

WebSite/src/lib/api.ts

@@ -1,4 +1,4 @@
-import { DicomFusionVolume, DicomInfo, DicomPreview, ModelPose, ModuleStyle, OverviewSummary, Project, SavedModelPose, SegmentationExportScope, SessionState, UserRecord } from '../types';
+import { DicomFusionVolume, DicomInfo, DicomPreview, ModelPose, ModuleStyle, OverviewSummary, Project, SavedModelPose, SegmentationDicomOpacityLevel, SegmentationDisplayLevel, SegmentationExportScope, SessionState, UserRecord } from '../types';
 
 export type ProjectExportTarget = 'dicom' | 'segmentation' | 'pose' | 'stl';
 export type { SegmentationExportScope } from '../types';
@@ -70,6 +70,13 @@ export const api = {
       pose: ModelPose;
       segmentationScope: SegmentationExportScope;
       moduleStyles: Record<string, ModuleStyle>;
+      sliceStart?: number;
+      sliceEnd?: number;
+      mappingSlice?: number;
+      displayLevel?: SegmentationDisplayLevel;
+      dicomOpacityLevel?: SegmentationDicomOpacityLevel;
+      showBounds?: boolean;
+      cutEnabled?: boolean;
     },
   ) =>
     request<Project>(`/api/projects/${projectId}/segmentation-results`, {

WebSite/src/types.ts

@@ -49,6 +49,8 @@ export interface SavedModelPose {
 }
 
 export type SegmentationExportScope = 'all' | 'visible';
+export type SegmentationDisplayLevel = 'standard' | 'fine' | 'ultra' | 'solid';
+export type SegmentationDicomOpacityLevel = 'low' | 'medium' | 'high';
 
 export interface SegmentationResult {
   id: string;
@@ -57,6 +59,13 @@ export interface SegmentationResult {
   segmentationScope: SegmentationExportScope;
   pose: ModelPose;
   moduleStyles: Record<string, ModuleStyle>;
+  sliceStart?: number;
+  sliceEnd?: number;
+  mappingSlice?: number;
+  displayLevel?: SegmentationDisplayLevel;
+  dicomOpacityLevel?: SegmentationDicomOpacityLevel;
+  showBounds?: boolean;
+  cutEnabled?: boolean;
 }
 
 export interface MaskMapping {

工程分析/实现方案-2026-05-20-14-19-23.md

@@ -0,0 +1,79 @@
+# 实现方案：逆向分割结果单结果化与入口统一
+
+实现方案文档路径：`工程分析/实现方案-2026-05-20-14-19-23.md`
+
+## 修改目标
+
+调整项目库与逆向工作区的逆向分割结果保存、展示、读取和导出交互，使结果只保留一个、命名统一、入口集中、退出有保存提醒。
+
+## 涉及路径
+
+- `WebSite/src/App.tsx`
+- `WebSite/src/components/ProjectLibrary.tsx`
+- `WebSite/src/components/ReverseWorkspace.tsx`
+- `WebSite/src/types.ts`
+- `WebSite/src/lib/api.ts`
+- `WebSite/server.ts`
+- `工程分析/需求分析-2026-05-20-14-19-23.md`
+- `工程分析/实现方案-2026-05-20-14-19-23.md`
+- `工程分析/测试方案-2026-05-20-14-19-23.md`
+- `工程分析/经验记录.md`
+
+## 技术路线
+
+1. 后端保存分割结果接口改为覆盖保存，只保留最新一条记录。
+2. 项目归一化时保留最新一条 `segmentationResults`，兼容旧状态中已有多条记录。
+3. 扩展 `SegmentationResult` 存储必要的切片范围、当前映射切片、显示/融合配置等上下文，用于重新进入工作区恢复。
+4. 逆向工作区加载项目时读取最新保存结果，恢复位姿、构件样式、分割范围和映射切片。
+5. `App.tsx` 接入工作区离开保护：离开逆向工作区时调用工作区注册的保存确认逻辑。
+6. 项目库页签改名为“逆向分割结果”，内容改为两张视图预览卡片和右侧导出面板。
+7. 顶部导出文案统一改为“导出项目及结果”，并将保存按钮移动到旁边。
+8. 删除映射视图标题旁边的 `NII`、`NII.GZ` 小下载按钮。
+9. 保存成功后显示顶部悬浮提示并渐隐消失。
+
+## 执行步骤
+
+- 阅读现有类型、API、后端保存接口、项目库和逆向工作区组件结构。
+- 更新类型定义与后端归一化/保存逻辑。
+- 更新 API payload 和前端保存调用。
+- 更新项目库 UI 与导出按钮文案。
+- 更新逆向工作区顶部操作区和映射视图标题区。
+- 接入退出保存确认和进入工作区结果恢复。
+- 运行类型/构建检查、服务部署验证。
+
+## 兼容性与回滚方案
+
+- 后端归一化兼容旧的多条 `segmentationResults`，只取最后一条作为当前结果。
+- 若保存上下文字段缺失，前端继续使用默认位姿、默认切片范围和默认显示配置。
+- 若导出按钮菜单异常，可继续调用现有 `/api/projects/:projectId/export-bundle` 后端接口。
+
+## 预计文件变更
+
+程序文件：
+
+- `WebSite/src/App.tsx`
+- `WebSite/src/components/ProjectLibrary.tsx`
+- `WebSite/src/components/ReverseWorkspace.tsx`
+- `WebSite/src/types.ts`
+- `WebSite/src/lib/api.ts`
+- `WebSite/server.ts`
+
+工程分析：
+
+- 本轮三份分析文档。
+- `工程分析/经验记录.md`。
+
+## 提交与部署策略
+
+- 暂存本轮程序改动与工程分析文档。
+- 避免提交软著材料、运行态导出文件、旧历史文档删除状态。
+- commit message 包含 `2026-05-20-14-19-23`。
+- 构建通过后重启 `tmux` 会话 `revoxelseg-dicom` 并验证服务。
+
+## 实际实现记录
+
+- 后端 `segmentationResults` 归一化改为只保留最新一条，并扩展保存切片、显示、边界与切割状态字段。
+- 导出接口默认使用最新保存结果的位姿、构件样式和类别范围。
+- 逆向工作区进入时恢复最新保存结果，退出时注册保存确认守卫。
+- 项目库“逆向分割结果”改为两张预览图加右侧统一导出面板。
+- 顶部保存按钮迁移到导出按钮旁，并加入保存成功悬浮渐隐提示。

工程分析/测试方案-2026-05-20-14-19-23.md

@@ -0,0 +1,58 @@
+# 测试方案：逆向分割结果保存与导出 UI 验证
+
+测试方案文档路径：`工程分析/测试方案-2026-05-20-14-19-23.md`
+
+## 静态检查
+
+- 全局搜索确认“导出全部 NII.GZ”文案已替换为“导出项目及结果”。
+- 全局搜索确认项目库页签“分割结果”改为“逆向分割结果”。
+- 检查“逆向分割映射视图”标题旁不再存在 `NII`、`NII.GZ` 小下载按钮。
+- 检查保存接口后端只保留一条结果。
+
+## 构建检查
+
+- 在 `WebSite/` 执行 `npm run build`。
+
+## 关键业务场景验证
+
+- 进入项目库，确认“逆向分割结果”页签存在。
+- 在逆向工作区顶部确认“保存至项目库”与“导出项目及结果”并列。
+- 点击保存后，确认顶部出现“已保存至项目库的分割结果区域”悬浮提示并自动消失。
+- 从逆向工作区切换到其他模块时，确认出现是否保存当前结果的弹窗。
+- 重新进入逆向工作区，确认读取项目库最新逆向分割结果的位姿、构件样式、切片范围等上下文。
+- 项目库“逆向分割结果”区域仅展示融合视角和映射视图两张结果预览图，并有导出按钮。
+
+## 医学影像数据相关边界验证
+
+- 导出包仍使用现有后端导出能力，位姿和构件样式来自最新保存结果或当前工作区结果。
+- 不改变 DICOM/STL 原始数据。
+- 不提交运行态导出文件。
+
+## 部署验证
+
+- 验证 `http://127.0.0.1:4000/api/health`。
+- 验证 `http://127.0.0.1:4000/` 返回 200。
+
+## Git/Gitea 备份验证
+
+- commit message 包含 `2026-05-20-14-19-23`。
+- 推送 Gitea 成功后记录 commit。
+- 确认未暂存软著文档、运行态导出文件和历史删除状态。
+
+## 风险与回归关注点
+
+- 覆盖保存会改变旧多条结果历史展示方式，需确认项目库只保留当前结果。
+- 退出弹窗若在保存失败时仍切换页面，可能丢状态，需处理失败阻断。
+- 恢复保存结果时需防止不完整旧数据造成 NaN 或空样式。
+
+## 实际执行记录
+
+- 已执行 `rg` 静态搜索，确认 `导出全部 NII.GZ` 文案已替换为 `导出项目及结果`。
+- 已执行 `rg` 静态搜索，确认项目库页签使用 `逆向分割结果`。
+- 已删除逆向工作区映射视图标题旁的 `NII`、`NII.GZ` 小下载按钮入口。
+- 已执行 `npm run lint`，结果通过。
+- 已执行 `npm run build`，结果通过；仅保留 Vite 大 chunk 体积提示。
+- 已重启 `tmux` 会话 `revoxelseg-dicom`，服务监听 `http://0.0.0.0:4000/`。
+- 已验证 `http://127.0.0.1:4000/api/health` 返回 `ok: true`。
+- 已验证 `http://127.0.0.1:4000/` 返回 HTTP 200。
+- 已验证默认项目接口中 `segmentationResults` 数量为 1，最新结果名称为 `逆向分割结果`。

工程分析/经验记录.md

@@ -1243,3 +1243,21 @@ C. 解决问题方案
 D. 后续如何避免问题
 
 软著截图默认采用完整页面截图；只有用户明确要求“局部图”“放大细节图”时才裁剪。若同一完整页面用于多个章节，校验 Word 时应统计正文图片位置数量，而不能只看 `word/media` 文件数，因为 Word 会复用相同图片二进制。
+
+## 2026-05-20-14-19-23 逆向分割结果单结果化需要前后端同时收口
+
+A. 具体问题
+
+用户要求项目库“分割结果”改为“逆向分割结果”，并且只保留一个当前结果，同时逆向工作区退出时询问是否保存、再次进入时读取项目库结果。如果只改前端展示，后端仍保存多条记录，导出和重新进入工作区会继续使用不一致的状态。
+
+B. 产生问题原因
+
+原有设计把 `segmentationResults` 作为历史列表保存，前端项目库按列表展示，后端导出接口默认使用当前请求参数或项目样式。新的业务语义改成项目级唯一当前结果，涉及保存接口、状态归一化、导出默认参数、工作区加载恢复和视图切换守卫多个链路。
+
+C. 解决问题方案
+
+后端归一化和保存接口均改为只保留最新一条逆向分割结果，并把位姿、构件样式、切片范围、映射切片和显示状态一起保存；导出接口默认读取最新保存结果。前端项目库改为两张结果预览图和统一导出面板；逆向工作区顶部集中保存与导出按钮，保存后显示渐隐提示；主应用视图切换时调用工作区离开守卫，保存失败时阻断退出。
+
+D. 后续如何避免问题
+
+凡是把“历史记录”改为“当前唯一状态”的需求，都要同步检查数据模型、归一化逻辑、保存接口、列表 UI、导出默认参数和重新进入页面的恢复逻辑。提交前用 `rg` 搜索旧文案和旧入口，避免残留重复下载按钮或旧命名造成用户误解。

工程分析/需求分析-2026-05-20-14-19-23.md

@@ -0,0 +1,67 @@
+# 需求分析：逆向分割结果保存、展示与导出入口调整
+
+开始时间：`2026-05-20-14-19-23`
+
+## 原始需求摘要
+
+用户要求修改程序：
+
+1. 项目库中“分割结果”改名为“逆向分割结果”，该区域只显示“影像与模型融合视角”和“逆向分割映射视图”两张图；右侧也提供“导出全部 NII.GZ”同等功能按钮。
+2. 逆向工作区中“保存至项目库”按钮移动到顶部“导出全部 NII.GZ”按钮旁边，按钮样式相近。
+3. 项目库分割结果只保留一个；从逆向工作区退出时弹窗询问是否保存当前结果；每次进入逆向工作区读取项目库中“逆向分割结果”的结果。
+4. 删除“逆向分割映射视图”旁边的 `NII`、`NII.GZ` 下载按钮。
+5. 全部“导出全部 NII.GZ”文案改为“导出项目及结果”。
+6. 点击保存至项目库后，在上方悬浮显示“已保存至项目库的分割结果区域”，并渐隐消失。
+
+## 业务目标
+
+- 将“逆向分割结果”从多条历史记录改为项目级单一当前结果，便于用户明确当前项目最终分割状态。
+- 统一导出入口，避免右侧映射视图附近存在重复的 NII/NII.GZ 小按钮。
+- 在项目库中以两张关键视图预览保存状态，强化“融合视角 + 映射视图”的复核语义。
+- 保证工作区退出和重新进入时，用户的位姿、构件样式、切片范围等关键上下文能够延续。
+
+## 输入与输出
+
+输入：
+
+- `WebSite/src/components/ProjectLibrary.tsx`
+- `WebSite/src/components/ReverseWorkspace.tsx`
+- `WebSite/src/App.tsx`
+- `WebSite/src/types.ts`
+- `WebSite/src/lib/api.ts`
+- `WebSite/server.ts`
+
+输出：
+
+- 项目库页签和内容改名为“逆向分割结果”。
+- 逆向工作区顶部新增/迁移“保存至项目库”按钮。
+- 删除映射视图标题旁边的 `NII`、`NII.GZ` 下载按钮。
+- 导出按钮文案统一为“导出项目及结果”。
+- 保存结果只保留单条，并支持退出弹窗保存与进入工作区读取。
+- 保存后显示顶部悬浮渐隐提示。
+
+## 影响范围
+
+- 前端主框架、项目库和逆向工作区交互。
+- 后端项目状态归一化与分割结果保存接口。
+- 项目导出包入口复用现有后端导出逻辑。
+
+## 关键约束
+
+- 保留现有导出包功能和参数能力，不破坏 DICOM、分割影像、位姿数据、STL 原始模型的可选导出。
+- 只保留最新一个逆向分割结果，旧多条结果列表不再展示。
+- 退出逆向工作区时不能直接丢弃当前工作状态，需要询问是否保存。
+- 重新进入逆向工作区时应读取项目库中保存的位姿、构件样式和分割范围。
+- UI 风格贴合现有医疗工具风格，避免过度装饰。
+
+## 风险点
+
+- `App.tsx` 当前直接切换工作区，退出工作区弹窗需要在视图切换链路中接入。
+- 保存结果如果写入多个历史记录，会与“只保留一个”要求冲突，需要前后端一致改为覆盖。
+- 若前端只恢复位姿而不恢复构件样式，项目库中的逆向分割结果与重新进入工作区显示会不一致。
+- 当前工作区存在历史工程分析文档删除状态和软著未跟踪目录，提交时需精确暂存。
+
+## 默认假设
+
+- “两个图”优先采用当前项目库中的可视化预览卡片表达：影像与模型融合视角、逆向分割映射视图。若没有保存结果则显示空状态。
+- 本轮不引入真实截图持久化文件，先以保存上下文驱动两张结果预览图和导出入口；避免在运行态中持久化大体积 base64 图片。