BuildingCoder.Creator.DrawPolygon C# (CSharp) Метод

        public void DrawPolygon(
            List<XYZ> loop)
        {
            XYZ p1 = XYZ.Zero;
              XYZ q = XYZ.Zero;
              bool first = true;
              foreach( XYZ p in loop )
              {
            if( first )
            {
              p1 = p;
              first = false;
            }
            else
            {
              CreateModelLine( _doc, p, q );
            }
            q = p;
              }
              CreateModelLine( _doc, q, p1 );
        }

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

            Element e = Util.SelectSingleElement(
                uidoc, "an element");

            if (null == e)
            {
                message = "No element selected";
                return(Result.Failed);
            }

            // Trying to call this property returns the
            // compile time error: Property, indexer, or
            // event 'BoundingBox' is not supported by
            // the language; try directly calling
            // accessor method 'get_BoundingBox( View )'

            //BoundingBoxXYZ b = e.BoundingBox[null];

            View v = null;

            BoundingBoxXYZ b = e.get_BoundingBox(v);

            if (null == b)
            {
                v = commandData.View;
                b = e.get_BoundingBox(v);
            }

            if (null == b)
            {
                Util.InfoMsg(
                    Util.ElementDescription(e)
                    + " has no bounding box.");
            }
            else
            {
                using (Transaction tx = new Transaction(doc))
                {
                    tx.Start("Draw Model Line Bounding Box Outline");

                    Debug.Assert(b.Transform.IsIdentity,
                                 "expected identity bounding box transform");

                    string in_view = (null == v)
            ? "model space"
            : "view " + v.Name;

                    Util.InfoMsg(string.Format(
                                     "Element bounding box of {0} in "
                                     + "{1} extends from {2} to {3}.",
                                     Util.ElementDescription(e),
                                     in_view,
                                     Util.PointString(b.Min),
                                     Util.PointString(b.Max)));

                    Creator creator = new Creator(doc);

                    creator.DrawPolygon(new List <XYZ>(
                                            Util.GetBottomCorners(b)));

                    Transform rotation = Transform.CreateRotation(
                        XYZ.BasisZ, 60 * Math.PI / 180.0);

                    b = RotateBoundingBox(b, rotation);

                    Util.InfoMsg(string.Format(
                                     "Bounding box rotated by 60 degrees "
                                     + "extends from {0} to {1}.",
                                     Util.PointString(b.Min),
                                     Util.PointString(b.Max)));

                    creator.DrawPolygon(new List <XYZ>(
                                            Util.GetBottomCorners(b)));

                    tx.Commit();
                }
            }
            return(Result.Succeeded);
        }