添加项目文件。

DotNet.Exchange.Revit/Test.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Autodesk.Revit.Attributes;
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+using Autodesk.Revit.Utility;
+using System.Diagnostics;
+using Autodesk.Revit.ApplicationServices;
+using DotNet.Exchange.Revit.Export;
+
+namespace DotNet.Exchange.Revit
+{
+    /// <summary>
+    /// 自定义导出测试代码。
+    /// 备注：自定义导出未经过长时间测试，在此开源是提供一个思路和方法，如果有遇到问题，可联系本人进行讨论.
+    /// </summary>
+    /// <seealso cref="Autodesk.Revit.UI.IExternalCommand" />
+    [Transaction(TransactionMode.Manual)]
+    public class Test : IExternalCommand
+    {
+        public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
+        {
+            var uiDoc = commandData.Application.ActiveUIDocument;
+
+            var doc = uiDoc.Document;
+
+            var refer = uiDoc.Selection.PickObject(Autodesk.Revit.UI.Selection.ObjectType.Element);
+
+            var elem = doc.GetElement(refer);
+
+
+            var export = new ExportElment();
+            var exportFactory = new ExportFactory(doc, export);
+            exportFactory.ExportLevel = 3;
+            exportFactory.Export(elem);
+
+            // 绘制测试，因绘制线速度较慢，所以当需要绘制测试时，请测试少量模型
+
+            doc.Invoke(m =>
+            {
+                foreach (var polygonMesh in export.PolygonMeshNodes)
+                {
+                    foreach (var triangleFaces in polygonMesh.TriangleFaces)
+                    {
+                        var p1 = polygonMesh.Points[triangleFaces.V1];
+                        var p2 = polygonMesh.Points[triangleFaces.V2];
+                        var p3 = polygonMesh.Points[triangleFaces.V3];
+
+                        CreateModelLine(doc, p1, p2);
+                        CreateModelLine(doc, p2, p3);
+                        CreateModelLine(doc, p3, p1);
+                    }
+                }
+            });
+            return Result.Succeeded;
+        }
+
+        private void CreateModelLine(Document doc, XYZ p1, XYZ p2)
+        {
+            using (var line = Line.CreateBound(p1, p2))
+            {
+                using (var skPlane = SketchPlane.Create(doc, this.ToPlane(p1, p2)))
+                {
+                    if (doc.IsFamilyDocument)
+                    {
+                        doc.FamilyCreate.NewModelCurve(line, skPlane);
+                    }
+                    else
+                    {
+                        doc.Create.NewModelCurve(line, skPlane);
+                    }
+                }
+            }
+        }
+
+        private Autodesk.Revit.DB.Plane ToPlane(XYZ point, XYZ other)
+        {
+            var v = other - point;
+            var angle = v.AngleTo(XYZ.BasisX);
+            var norm = v.CrossProduct(XYZ.BasisX).Normalize();
+
+            if (Math.Abs(angle - 0) < 1e-4)
+            {
+                angle = v.AngleTo(XYZ.BasisY);
+                norm = v.CrossProduct(XYZ.BasisY).Normalize();
+            }
+
+            if (Math.Abs(angle - 0) < 1e-4)
+            {
+                angle = v.AngleTo(XYZ.BasisZ);
+                norm = v.CrossProduct(XYZ.BasisZ).Normalize();
+            }
+            return new Autodesk.Revit.DB.Plane(norm, point);
+        }
+    }
+
+    public static class DocumentExtension
+    {
+        /// <summary>
+        /// 使用委托启动事务.事务内自动进行事务启动，提交、回滚等处理。
+        /// </summary>
+        /// <param name="doc">The document.</param>
+        /// <param name="action">The action.</param>
+        /// <param name="name">The name.</param>
+        public static void Invoke(this Document doc, Action<Transaction> action, string name = "default")
+        {
+            using (var tr = new Transaction(doc, name))
+            {
+                tr.Start();
+
+                action(tr);
+
+                var status = tr.GetStatus();
+                switch (status)
+                {
+                    case TransactionStatus.Started:
+                        tr.Commit();
+                        return;
+                    case TransactionStatus.Committed:
+                    case TransactionStatus.RolledBack:
+                        break;
+                    case TransactionStatus.Error:
+                        tr.RollBack();
+                        return;
+                    default:
+                        return;
+                }
+            }
+        }
+    }
+}
+