Revit API C# 窗户模型预览窗体代码示例

以下是使用Revit API和C#编写的窗体预览模型代码示例，该代码将创建一个外部命令，当用户选择窗户元素时，会创建一个预览视图并在一个窗体中显示。预览视图是窗户类型的Dependent View，缩放比例设置为1/8。窗体包含一个PictureBox控件来显示预览视图，并包含一个Label控件来显示窗户类型的名称。

using Autodesk.Revit.ApplicationServices;
using Autodesk.Revit.Attributes;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI;
using Autodesk.Revit.UI.Selection;

namespace WindowPreview
{
    [Transaction(TransactionMode.Manual)]
    [Regeneration(RegenerationOption.Manual)]
    public class WindowPreviewCommand : IExternalCommand
    {
        public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
        {
            // 获取当前文档
            UIDocument uiDoc = commandData.Application.ActiveUIDocument;
            Document doc = uiDoc.Document;

            // 选择窗户元素
            Reference pickedRef = uiDoc.Selection.PickObject(ObjectType.Element, new WindowSelectionFilter(), 'Select a window');
            ElementId windowId = pickedRef.ElementId;

            // 获取窗户元素
            FamilyInstance window = doc.GetElement(windowId) as FamilyInstance;

            // 获取窗户类型
            FamilySymbol windowType = window.Symbol;

            // 获取窗户类型的预览视图
            ViewFamilyType viewFamilyType = doc.GetElement(windowType.GetDependentViewType()) as ViewFamilyType;
            View view = ViewSection.CreateSection(doc, viewFamilyType.Id, BoundingBoxXYZ);
            view.Scale = 1 / 8.0;

            // 在窗体中显示预览视图
            WindowPreviewForm form = new WindowPreviewForm(view, windowType);
            form.ShowDialog();

            return Result.Succeeded;
        }
    }

    // 窗户选择过滤器
    public class WindowSelectionFilter : ISelectionFilter
    {
        public bool AllowElement(Element elem)
        {
            return elem is FamilyInstance && elem.Category.Name == 'Windows';
        }

        public bool AllowReference(Reference reference, XYZ position)
        {
            return AllowElement(reference.Element);
        }
    }

    // 窗体预览视图
    public class WindowPreviewForm : Form
    {
        private PictureBox pictureBox;
        private Label label;

        public WindowPreviewForm(View view, FamilySymbol windowType)
        {
            // 初始化窗体
            this.Text = windowType.Family.Name;
            this.Width = 800;
            this.Height = 600;

            // 初始化PictureBox
            pictureBox = new PictureBox();
            pictureBox.Dock = DockStyle.Fill;
            pictureBox.SizeMode = PictureBoxSizeMode.Zoom;
            pictureBox.Image = view.GetImage(new ImageExportOptions());

            // 初始化Label
            label = new Label();
            label.Dock = DockStyle.Bottom;
            label.Text = 'Window Type: ' + windowType.Name;

            // 添加控件到窗体
            this.Controls.Add(pictureBox);
            this.Controls.Add(label);
        }
    }
}