BuildingCoder.CmdPickPoint3d.Execute C# (CSharp) Метод

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

              //PickPointsForArea( uidoc );

              XYZ point_in_3d;

              if( PickFaceSetWorkPlaneAndPickPoint(
            uidoc, out point_in_3d ) )
              {
            TaskDialog.Show( "3D Point Selected",
              "3D point picked on the plane"
              + " defined by the selected face: "
              + Util.PointString( point_in_3d ) );

            return Result.Succeeded;
              }
              else
              {
            message = "3D point selection cancelled or failed";
            return Result.Failed;
              }
        }