315 lines
13 KiB
C#
315 lines
13 KiB
C#
using System.Collections.ObjectModel;
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using System.Windows;
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using Autodesk.Revit.DB;
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using CommunityToolkit.Mvvm.ComponentModel;
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using CommunityToolkit.Mvvm.Input;
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using Nice3point.Revit.Toolkit.External.Handlers;
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namespace ShrlAlgoToolkit.RevitAddins.RvView;
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public partial class SectionBoxControllerViewModel : ObservableObject
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{
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public SectionBoxControllerViewModel(UIApplication uiapp)
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{
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uiapp.ViewActivated -= Application_ViewActivated;
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uiapp.ViewActivated += Application_ViewActivated;
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if (uiapp.ActiveUIDocument.ActiveView is View3D view3d)
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{
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using var trans = new Transaction(uiapp.ActiveUIDocument.Document, "激活剖面框");
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trans.Start();
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if (!view3d.IsSectionBoxActive)
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{
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view3d.IsSectionBoxActive = true;
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}
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//defaultSectionBox = view3D.GetSectionBox();
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trans.Commit();
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CanModify = true;
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}
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else
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{
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CanModify = false;
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}
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setSectionBoxHandler = new ActionEventHandler();
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this.uiapp = uiapp;
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}
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private void Application_ViewActivated(object sender, Autodesk.Revit.UI.Events.ViewActivatedEventArgs e)
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{
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CanModify = e.CurrentActiveView is View3D view3d && view3d.IsSectionBoxActive;
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}
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[ObservableProperty]
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[NotifyCanExecuteChangedFor(nameof(RevitAddins.RvView.SectionBoxControllerViewModel.RecordSectionBoxCommand), nameof(RevitAddins.RvView.SectionBoxControllerViewModel.UpdateSectionBoxCommand))]
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public partial bool CanModify { get; set; }
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[ObservableProperty]
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public partial SectionBoxType SectionBoxType { get; set; }
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[ObservableProperty]
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public partial bool NeedExtend { get; set; }
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/// <summary>
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/// 记录剖面框修改
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/// </summary>
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public ObservableCollection<SectionBox> BoundingBoxes { get; set; } = [];
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private readonly ActionEventHandler setSectionBoxHandler;
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private readonly UIApplication uiapp;
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private int index = 1;
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[RelayCommand(CanExecute = nameof(RevitAddins.RvView.SectionBoxControllerViewModel.CanModify))]
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private void RecordSectionBox()
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{
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if (uiapp.ActiveUIDocument.Document.ActiveView is View3D { IsSectionBoxActive: true } view3D)
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{
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BoundingBoxes.Insert(0, new SectionBox($"剖面框 {index}", view3D.GetSectionBox()));
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index++;
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}
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}
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[RelayCommand]
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private void RemoveSectionBox(SectionBox sectionBox)
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{
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BoundingBoxes.Remove(sectionBox);
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}
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[RelayCommand]
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private void ResetSectionBox()
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{
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setSectionBoxHandler.Raise(uiapp =>
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{
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var uidoc = uiapp.ActiveUIDocument;
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switch (SectionBoxType)
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{
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case SectionBoxType.Element:
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ResetSectionBoxByElement(uidoc);
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break;
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case SectionBoxType.Rectangle:
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ResetSectionBoxByRectangle(uidoc);
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break;
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case SectionBoxType.ViewSection:
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ResetSectionBoxByViewSection(uidoc);
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break;
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default:
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break;
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}
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});
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}
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/// <summary>
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/// 重设元素剖面框
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/// </summary>
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private void ResetSectionBoxByElement(UIDocument uidoc)
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{
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var doc = uidoc.Document;
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doc.Invoke(
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ts =>
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{
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if (doc.ActiveView is not View3D view3D)
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{
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var viewFamilyType = doc.OfClass<ViewFamilyType>()
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.Cast<ViewFamilyType>()
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.FirstOrDefault(vft => vft.ViewFamily == ViewFamily.ThreeDimensional);
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view3D = View3D.CreateIsometric(doc, viewFamilyType.Id);
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view3D.DisplayStyle = DisplayStyle.ShadingWithEdges;
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view3D.DetailLevel = ViewDetailLevel.Fine;
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}
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var elements = uidoc.GetSelectedElements();
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if (elements.Count == 0)
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{
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return;
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}
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XYZ gmax = XYZ.Zero;
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XYZ gmin = XYZ.Zero;
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doc.InvokeSub(
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sub =>
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{
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//var boundingBox = elements[0].get_BoundingBox(view3D);
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//var maxX = boundingBox.Max.X;
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//var maxY = boundingBox.Max.Y;
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//var maxZ = boundingBox.Max.Z;
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//var minX = boundingBox.Min.X;
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//var minY = boundingBox.Min.Y;
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//var minZ = boundingBox.Min.Z;
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//foreach (var elem in elements)
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//{
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// var box = elem.get_BoundingBox(view3D);
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// maxX = Math.Max(box.Max.X, maxX);
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// maxY = Math.Max(box.Max.Y, maxY);
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// maxZ = Math.Max(box.Max.Z, maxZ);
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// minX = Math.Min(box.Min.X, minX);
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// minY = Math.Min(box.Min.Y, minY);
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// minZ = Math.Min(box.Min.Z, minZ);
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//}
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var elementIds = elements.Select(e => e.Id).ToList();
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var g = doc.Create.NewGroup(elementIds);
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var boundingBox = g.get_BoundingBox(null);
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gmax = g.get_BoundingBox(null).Max;
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gmin = g.get_BoundingBox(null).Min;
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sub.RollBack();
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if (!boundingBox.Enabled)
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{
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MessageBox.Show("当前三维剖面框不可用", "错误");
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}
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});
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//var newbox = new BoundingBoxXYZ
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//{
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// Max = new XYZ(maxX, maxY, maxZ),
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// Min = new XYZ(minX, minY, minZ)
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//};
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var newbox = new BoundingBoxXYZ
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{
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Max = gmax,
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Min = gmin
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};
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//XYZ origin = new XYZ(0, 0, 0);
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//XYZ axis = new XYZ(0, 0, 1);
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//Transform rotate = Transform.CreateRotationAtPoint(axis, 2, origin);
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//box.Transform = box.Transform.Multiply(rotate);
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newbox = NeedExtend ? newbox.Extend() : newbox;
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view3D?.SetSectionBox(newbox);
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ts.Commit();
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uidoc.ActiveView = view3D;
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},
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"重设(元素)剖面框");
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}
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/// <summary>
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/// 重设框选剖面框
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/// </summary>
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private void ResetSectionBoxByRectangle(UIDocument uidoc)
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{
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var doc = uidoc.Document;
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doc.Invoke(
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ts =>
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{
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if (uidoc.ActiveView is not ViewPlan viewPlane)
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{
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MessageBox.Show("请在平面上框选范围", "提示", MessageBoxButton.OK, MessageBoxImage.Information);
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return;
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}
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var box = uidoc.Selection.PickBox(Autodesk.Revit.UI.Selection.PickBoxStyle.Directional);
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var max = box.Max;
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var min = box.Min;
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var currentLevel = viewPlane.GenLevel;
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var level = doc.OfClass<Level>()
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.Cast<Level>()
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.OrderBy(l => l.Elevation)
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.FirstOrDefault(l => l.Elevation > currentLevel.Elevation);
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var boundMax = new XYZ(Math.Max(max.X, min.X), Math.Max(max.Y, min.Y), level.Elevation);
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var boundMin = new XYZ(Math.Min(max.X, min.X), Math.Min(max.Y, min.Y), min.Z);
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var bounding = new BoundingBoxXYZ() { Max = boundMax, Min = boundMin };
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var viewFamilyType = doc.OfClass<ViewFamilyType>()
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.Cast<ViewFamilyType>()
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.FirstOrDefault(vft => vft.ViewFamily == ViewFamily.ThreeDimensional);
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var view3D = View3D.CreateIsometric(doc, viewFamilyType.Id);
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view3D.IsSectionBoxActive = true;
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bounding = NeedExtend ? bounding : bounding.Extend();
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view3D.SetSectionBox(bounding);
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view3D.DisplayStyle = DisplayStyle.ShadingWithEdges;
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view3D.DetailLevel = ViewDetailLevel.Fine;
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ts.Commit();
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uidoc.ActiveView = view3D;
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},
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"重设(框选)剖面框");
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}
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/// <summary>
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/// 重设剖面视图范围的剖面框
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/// </summary>
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private void ResetSectionBoxByViewSection(UIDocument uidoc)
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{
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var reference = uidoc.Selection.PickObject(Autodesk.Revit.UI.Selection.ObjectType.Element, new FuncFilter(elem => elem.Category?.GetHashCode() == -2000278), "请选择剖面视图");
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var doc = uidoc.Document;
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var element = doc.GetElement(reference);
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if (element != null)
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{
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doc.Invoke(
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ts =>
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{
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var viewFamilyType = doc.OfClass<ViewFamilyType>()
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.Cast<ViewFamilyType>()
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.FirstOrDefault(vft => vft.ViewFamily == ViewFamily.ThreeDimensional);
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//新建的三维视图
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var view3D = View3D.CreateIsometric(doc, viewFamilyType.Id);
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if (doc.ActiveView is not ViewSection viewSection)
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{
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viewSection = doc.OfClass<View>().Cast<View>().FirstOrDefault(v => v.Name == element.Name && v.ViewType == ViewType.Section && !v.IsTemplate) as ViewSection;
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}
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view3D.IsSectionBoxActive = true;
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doc.Regenerate();
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//最新添加的即是当前复制视图的剖面框
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//var cropBoxElement = view3D.OfCategory(BuiltInCategory.OST_SectionBox).Last();
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//实际位置的BoundingBox
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//var bounding = element.get_BoundingBox(viewSection);
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//相对剖面的BoundingBox,准确的剖面框大小,具有transform
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var boundingBox = viewSection.CropBox;
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//var b = Transform.CreateRotationAtPoint(viewSection.RightDirection, Math.PI / 2, viewSection.Origin);
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//重新构造一个变换，由于视图的变换r x v = u满足左手定则，与全局坐标系右手定则不一样，将其坐标轴修改为全局坐标系的一样的右手定则
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var transform = Transform.Identity;
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transform.BasisX = viewSection.RightDirection;
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//Y轴取反
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transform.BasisY = -viewSection.ViewDirection;
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transform.BasisZ = viewSection.UpDirection;
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transform.Origin = boundingBox.Transform.Origin;
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//boundingBox.Max.Z固定等于0，因为ViewDirection朝外面向用户，Min的Z值始终小于0，即反向
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var max = new XYZ(boundingBox.Max.X, -boundingBox.Min.Z, boundingBox.Max.Y);
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var min = new XYZ(boundingBox.Min.X, -boundingBox.Max.Z, boundingBox.Min.Y);
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boundingBox.Max = max;
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boundingBox.Min = min;
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boundingBox.Transform = transform;
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boundingBox = NeedExtend ? boundingBox : boundingBox.Extend();
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view3D.SetSectionBox(boundingBox);
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//ElementTransformUtils.MoveElement(doc, cropBoxElement.Id, viewSection.Origin);
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view3D.DisplayStyle = DisplayStyle.ShadingWithEdges;
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view3D.DetailLevel = ViewDetailLevel.Fine;
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ts.Commit();
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uidoc.ActiveView = view3D;
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},
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"重设(剖面)剖面框");
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}
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}
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[RelayCommand(CanExecute = nameof(RevitAddins.RvView.SectionBoxControllerViewModel.CanModify))]
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private void UpdateSectionBox(object obj)
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{
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if (obj is BoundingBoxXYZ boundingBoxXyz)
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{
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setSectionBoxHandler.Raise(uiapp =>
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{
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var uidoc = uiapp.ActiveUIDocument;
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if (uidoc.ActiveView is View3D view3d)
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{
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uidoc.Document.Invoke(_ =>
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{
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view3d?.SetSectionBox(boundingBoxXyz);
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}, "更新剖面框");
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}
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});
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}
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}
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}
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public class SectionBox(string name, BoundingBoxXYZ bounding)
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{
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public string Name { get; set; } = name;
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public BoundingBoxXYZ Bounding { get; set; } = bounding;
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}
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public enum SectionBoxType
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{
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Element,
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Rectangle,
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ViewSection,
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}
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