diff --git a/src/UI/WPF/ViewModels/PathEditingViewModel.cs b/src/UI/WPF/ViewModels/PathEditingViewModel.cs
index 215c9b5..09aa62a 100644
--- a/src/UI/WPF/ViewModels/PathEditingViewModel.cs
+++ b/src/UI/WPF/ViewModels/PathEditingViewModel.cs
@@ -2236,28 +2236,6 @@ namespace NavisworksTransport.UI.WPF.ViewModels
             }
         }
 
-        private async Task ExecuteSelectAssemblyInstallationPointAsync(RailAssemblyWorkflowMode workflowMode)
-        {
-            await SafeExecuteAsync(() =>
-            {
-                if (_pathPlanningManager == null)
-                {
-                    throw new InvalidOperationException("路径规划管理器未初始化,无法选择安装点。");
-                }
-
-                if (_assemblyTerminalObject == null || !ModelItemAnalysisHelper.IsModelItemValid(_assemblyTerminalObject))
-                {
-                    throw new InvalidOperationException("终点箱体未设置或已失效,请先捕获终点箱体。");
-                }
-
-                PrepareRailAssemblyWorkflowForMode(
-                    workflowMode,
-                    editActionDescription: "请先选中一条需要编辑安装点的 Rail 路径。",
-                    syncMountModeFromRoute: false);
-
-                BeginAssemblyInstallationSelection();
-            }, "选择安装点");
-        }
 
         private async void OnAssemblyReferenceMouseClicked(object sender, PickItemResult pickResult)
         {
@@ -2290,50 +2268,6 @@ namespace NavisworksTransport.UI.WPF.ViewModels
             }
         }
 
-        private async void OnAssemblyInstallationMouseClicked(object sender, PickItemResult pickResult)
-        {
-            try
-            {
-                if (!_isSelectingAssemblyInstallationPoint || pickResult == null)
-                {
-                    return;
-                }
-
-                await SafeExecuteAsync(() =>
-                {
-                    if (!IsPickOnAssemblyTerminalObject(pickResult))
-                    {
-                        UpdateMainStatus("请点击当前终点箱体表面,不要点到其他对象。");
-                        return;
-                    }
-
-                    _assemblyInstallationSeedPoints.Add(pickResult.Point);
-                    RenderAssemblyInstallationPickPoints(_assemblyInstallationSeedPoints);
-
-                    int pickedCount = _assemblyInstallationSeedPoints.Count;
-                    LogManager.Info($"[直线装配] 已记录安装面点 {pickedCount}: ({pickResult.Point.X:F3}, {pickResult.Point.Y:F3}, {pickResult.Point.Z:F3})");
-
-                    if (pickedCount < 2)
-                    {
-                        UpdateMainStatus("已记录安装面点 1/2,请继续在同一安装面上点击第二个点。");
-                        return;
-                    }
-
-                    BuildAndRenderAssemblyInstallationReference(
-                        _assemblyInstallationSeedPoints[0],
-                        _assemblyInstallationSeedPoints[1]);
-
-                    ApplyAssemblyInstallationReferenceForCurrentWorkflow();
-                    CleanupAssemblyInstallationSelection(clearVisuals: false);
-                }, "处理安装点拾取");
-            }
-            catch (Exception ex)
-            {
-                LogManager.Error($"[直线装配] 安装点计算失败: {ex.Message}", ex);
-                UpdateMainStatus($"安装点计算失败: {ex.Message}");
-                CleanupAssemblyInstallationSelection(clearVisuals: true);
-            }
-        }
 
         private void PrepareRailAssemblyWorkflowForMode(
             RailAssemblyWorkflowMode workflowMode,
@@ -2643,30 +2577,6 @@ namespace NavisworksTransport.UI.WPF.ViewModels
             }
         }
 
-        private void BeginAssemblyInstallationSelection()
-        {
-            CleanupAssemblyReferenceSelection();
-            CleanupAssemblyEndFaceSelection(clearVisuals: false);
-            CleanupAssemblyInstallationSelection();
-            ClearAssemblyInstallationReferenceVisuals();
-
-            _pathPlanningManager.DisableMouseHandling();
-            _isSelectingAssemblyInstallationPoint = true;
-            NotifyRailAssemblyCommandStateChanged();
-
-            PathClickToolPlugin.MouseClicked -= OnAssemblyInstallationMouseClicked;
-            PathClickToolPlugin.MouseClicked += OnAssemblyInstallationMouseClicked;
-
-            if (!ForceReinitializeToolPlugin(subscribeToEvents: false))
-            {
-                CleanupAssemblyInstallationSelection();
-                throw new InvalidOperationException("ToolPlugin 初始化失败,请重试。");
-            }
-
-            _assemblyInstallationSeedPoints.Clear();
-            UpdateMainStatus("请在终点箱体表面连续点击两个安装面点,系统将按两点和光轴计算安装参考面与安装点。");
-            LogManager.Info($"[直线装配] 已进入安装点拾取模式,模式={GetRailAssemblyWorkflowLabel(_railAssemblyWorkflowMode)}");
-        }
 
         private void ApplyAssemblyStartPointForCurrentWorkflow(Point3D projectedStartPoint)
         {
@@ -3359,49 +3269,6 @@ namespace NavisworksTransport.UI.WPF.ViewModels
                 RenderStyleName.AssemblyGuideLine);
         }
 
-        private void BuildAndRenderAssemblyInstallationReference(Point3D firstPickPoint, Point3D secondPickPoint)
-        {
-            Point3D opticalAxisReferencePoint = GetAssemblyOpticalAxisReferencePoint();
-            Point3D sphereCenterPoint = new Point3D(
-                AssemblySphereCenterX,
-                AssemblySphereCenterY,
-                AssemblySphereCenterZ);
-
-            Vector3 opticalAxisDirection = new Vector3(
-                (float)(opticalAxisReferencePoint.X - sphereCenterPoint.X),
-                (float)(opticalAxisReferencePoint.Y - sphereCenterPoint.Y),
-                (float)(opticalAxisReferencePoint.Z - sphereCenterPoint.Z));
-
-            AssemblyInstallationReferenceResult result = AssemblyInstallationReferenceBuilder.Build(
-                new Vector3((float)opticalAxisReferencePoint.X, (float)opticalAxisReferencePoint.Y, (float)opticalAxisReferencePoint.Z),
-                opticalAxisDirection,
-                new Vector3((float)firstPickPoint.X, (float)firstPickPoint.Y, (float)firstPickPoint.Z),
-                new Vector3((float)secondPickPoint.X, (float)secondPickPoint.Y, (float)secondPickPoint.Z));
-
-            _hasAssemblyInstallationReference = true;
-            _assemblyInstallationPickPoint = AssemblyEndFaceAnalyzer.ToPoint3D((result.PickPoint + result.SecondaryPickPoint) * 0.5f);
-            _assemblyInstallationBaseAnchorPoint = AssemblyEndFaceAnalyzer.ToPoint3D(result.AnchorPoint);
-            _assemblyInstallationPlaneNormal = result.PlaneNormal;
-            _assemblyInstallationPlaneSpanDirection = result.PlaneSpanDirection;
-            _assemblyInstallationOffsetDistanceInMeters = UnitsConverter.ConvertToMeters(result.OffsetDistance);
-            _assemblyAnchorVerticalOffsetInMeters = DefaultAssemblyAnchorVerticalOffsetInMeters;
-            OnPropertyChanged(nameof(AssemblyAnchorVerticalOffsetInMeters));
-            UpdateAssemblyInstallationAnchorFromVerticalOffset();
-
-            RenderAssemblyInstallationPickPoints(_assemblyInstallationSeedPoints);
-            RenderAssemblyInstallationCenterLine(AssemblyEndFaceAnalyzer.ToPoint3D(result.InstallLineBasePoint), result.OpticalAxisDirection);
-
-            RefreshAssemblyTerminalObjectInfo();
-            RefreshAssemblyReferenceRodIfNeeded();
-            UpdateMainStatus(
-                $"安装参考已计算:安装点=({_assemblyInstallationAnchorPoint.X:F2}, {_assemblyInstallationAnchorPoint.Y:F2}, {_assemblyInstallationAnchorPoint.Z:F2}),偏距={_assemblyInstallationOffsetDistanceInMeters:F3}m,可继续取起点");
-            LogManager.Info(
-                $"[直线装配] 安装参考已计算: 安装面点1=({firstPickPoint.X:F3}, {firstPickPoint.Y:F3}, {firstPickPoint.Z:F3}), " +
-                $"安装面点2=({secondPickPoint.X:F3}, {secondPickPoint.Y:F3}, {secondPickPoint.Z:F3}), " +
-                $"安装点=({_assemblyInstallationAnchorPoint.X:F3}, {_assemblyInstallationAnchorPoint.Y:F3}, {_assemblyInstallationAnchorPoint.Z:F3}), " +
-                $"偏距={_assemblyInstallationOffsetDistanceInMeters:F3}m, 平面法向=({result.PlaneNormal.X:F4}, {result.PlaneNormal.Y:F4}, {result.PlaneNormal.Z:F4})");
-            NotifyRailAssemblyCommandStateChanged();
-        }
 
         private void RenderAssemblyInstallationPickPoints(IReadOnlyList<Point3D> pickPoints)
         {