Revit二次开发之基于面和工作平面布置实例

public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)

        {

            UIApplication uiApp = commandData.Application;

            UIDocument uidoc = uiApp.ActiveUIDocument;

            Document doc = uidoc.Document;

 

           

            //基于面的引用 doc.Create.NewFamilyInstance(face, xyz, xyz, symbol);

            using (Transaction ts = new Transaction(doc, "BIM"))

            {

                ts.Start();

                Reference refer = uidoc.Selection.PickObject(ObjectType.Element, "");

                Wall wall = doc.GetElement(refer) as Wall;

                Face face = PaintFace(uiApp, wall);

                PlanarFace pf = face as PlanarFace;

                XYZ xyz = refer.GlobalPoint;

                xyz = face.Project(xyz).XYZPoint;

                XYZ normal = pf.FaceNormal;

                //XYZ normal = wall.Orientation;

                XYZ refdir = normal.CrossProduct(XYZ.BasisZ);

                FamilySymbol symbol = new FilteredElementCollector(doc).OfClass(typeof(FamilySymbol)).OfCategory(BuiltInCategory.OST_SecurityDevices).Where(o => o.Name == "左右通用").First() as FamilySymbol;

                symbol.Activate();

                FamilyInstance instance = doc.Create.NewFamilyInstance(face, xyz, refdir, symbol);

                ts.Commit();

            }

           // 基于SketchPlane

            using (Transaction tt = new Transaction(doc, "BIM"))

            {

                tt.Start();

                SubTransaction sub = new SubTransaction(doc);

                sub.Start();

                Plane plane = new Plane(new XYZ(1, 0, 0), XYZ.Zero);

                SketchPlane sp = SketchPlane.Create(doc, plane);

                doc.ActiveView.SketchPlane = sp;

                doc.ActiveView.ShowActiveWorkPlane();

                sub.Commit();

                Level level=new FilteredElementCollector(doc).OfClass(typeof(Level)).OrderBy(o=>(o as Level).ProjectElevation).First() as Level;

                FamilySymbol symbol = new FilteredElementCollector(doc).OfClass(typeof(FamilySymbol)).OfCategory(BuiltInCategory.OST_SecurityDevices).Where(o => o.Name == "左右通用").First() as FamilySymbol;

                symbol.Activate();

                FamilyInstance instance = doc.Create.NewFamilyInstance(XYZ.Zero,symbol,sp,level,StructuralType.NonStructural);

 

                tt.Commit();

            }

           

          

 

            return Result.Succeeded;

        }