BuildingCoder.CmdSlabBoundary.Execute C# (CSharp) Метод

        public Result Execute(
            ExternalCommandData commandData,
            ref string message,
            ElementSet elements)
        {
            UIApplication app = commandData.Application;
              UIDocument uidoc = app.ActiveUIDocument;
              Document doc = uidoc.Document;

              // retrieve selected floors, or all floors, if nothing is selected:

              List<Element> floors = new List<Element>();

              if( !Util.GetSelectedElementsOrAll(
            floors, uidoc, typeof( Floor ) ) )
              {
            Selection sel = uidoc.Selection;

            message = ( 0 < sel.GetElementIds().Count )
              ? "Please select some floor elements."
              : "No floor elements found.";

            return Result.Failed;
              }

              Options opt = app.Application.Create.NewGeometryOptions();

              List<List<XYZ>> polygons
            = GetFloorBoundaryPolygons( floors, opt );

              int n = polygons.Count;

              Debug.Print(
            "{0} boundary loop{1} found.",
            n, Util.PluralSuffix( n ) );

              Creator creator = new Creator( doc );

              using( Transaction t = new Transaction( doc ) )
              {
            t.Start( "Draw Slab Boundaries" );

            creator.DrawPolygons( polygons );

            t.Commit();
              }

              return Result.Succeeded;
        }