[Revit二次开发] 创建一个柱的族

完整项目代码：

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;using Autodesk.Revit.DB;using Autodesk.Revit.UI;using Autodesk.Revit.Attributes;using Autodesk.Revit.ApplicationServices; //Application的引用namespace FamilyAPI{[TransactionAttribute(TransactionMode.Manual)]public class Class1 : IExternalCommand{public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements){string rftPath = @"C:\ProgramData\Autodesk\RVT \Family Templates\Chinese\公制柱.rft";UIApplication uiapp = commandData.Application;Application app = uiapp.Application;UIDocument uidoc = commandData.Application.ActiveUIDocument;Document doc = uidoc.Document;Document faDoc = app.NewFamilyDocument(rftPath);//创建族文件Transaction trans = new Transaction(faDoc, "创建族");//创建事务trans.Start();FamilyManager manager = faDoc.FamilyManager;FamilyParameter mfp = manager.AddParameter("材质", BuiltInParameterGroup.PG_MATERIALS, ParameterType.Material, false);//创建材质CurveArrArray arry = GetCurve();SketchPlane skplane = GetSketchPlane(faDoc);Extrusion extruction = faDoc.FamilyCreate.NewExtrusion(true, arry, skplane, 4000 / 304.8);faDoc.Regenerate();Reference topFaceRef = null;Options opt = new Options();puteReferences = true;opt.DetailLevel = ViewDetailLevel.Fine;GeometryElement gelm = extruction.get_Geometry(opt);foreach(GeometryObject gobj in gelm){if(gobj is Solid){Solid s = gobj as Solid;foreach(Face face in s.Faces){if (puteNormal(new UV()).IsAlmostEqualTo(new XYZ(0, 0, 1))){topFaceRef = face.Reference;}}}}View v = GetView(faDoc);Reference r = GetTopLevel(faDoc);Dimension d = faDoc.FamilyCreate.NewAlignment(v, r, topFaceRef);d.IsLocked = true;faDoc.Regenerate();Parameter p = extruction.get_Parameter(BuiltInParameter.MATERIAL_ID_PARAM);manager.AssociateElementParameterToFamilyParameter(p, mfp);mit();Family fa = faDoc.LoadFamily(doc);faDoc.Close(false);trans = new Transaction(doc, "创建柱");trans.Start();fa.Name = "我的柱子";mit();return Result.Succeeded;}private Reference GetTopLevel(Document doc){FilteredElementCollector temc = new FilteredElementCollector(doc);temc.OfClass(typeof(Level));Level lvl = temc.First(m => m.Name== "高于参照标高") as Level;return new Reference(lvl);}private View GetView(Document doc){FilteredElementCollector viewFilter = new FilteredElementCollector(doc);viewFilter.OfClass(typeof(View));View v = viewFilter.First(m => m.Name == "前") as View;return v;}private SketchPlane GetSketchPlane(Document doc){FilteredElementCollector temc = new FilteredElementCollector(doc);temc.OfClass(typeof(SketchPlane));SketchPlane sketchPlane = temc.First(m => m.Name == "低于参照标高") as SketchPlane;return sketchPlane;}private CurveArrArray GetCurve(){double len = 300 / 304.8;//对英制单位进行转换//创建4个点XYZ p1 = new XYZ(-len, -len, 0);XYZ p2 = new XYZ(len, -len, 0);XYZ p3 = new XYZ(len, len, 0);XYZ p4 = new XYZ(-len, len, 0);//创建闭合曲线Line l1 = Line.CreateBound(p1, p2);Line l2 = Line.CreateBound(p2, p3);Line l3 = Line.CreateBound(p3, p4);Line l4 = Line.CreateBound(p4, p1);CurveArrArray ary = new CurveArrArray();CurveArray arry = new CurveArray();arry.Append(l1);arry.Append(l2);arry.Append(l3);arry.Append(l4);ary.Append(arry);return ary;}}}

参考文献：

周婧祎《Autodesk Revit 二次开发入门教程》