Create Broken-Out Section Example (C#)

//----------------------------------------------------------------------------
// Preconditions:
// 1. Open a drawing.
// 2. Select Drawing View1.
//
// Postconditions: A broken-out section is created in Drawing View1
// using the specified closed spline.
// ---------------------------------------------------------------------------
using Microsoft.VisualBasic;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Diagnostics;
using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using System.Runtime.InteropServices;
namespace CreateBreakOutSection_CSharp.csproj
{
    partial class SolidWorksMacro
    {
        ModelDoc2 Part;
        object pointArray;
        double[] points = new double[12];
        SketchSegment skSegment;
        SelectData selectData = null;
        DrawingDoc dDoc;

        public void Main()
        {
            Part = (ModelDoc2)swApp.ActiveDoc;

            points[0] = -0.0544316967839374;
            points[1] = 0.0413619530906299;
            points[2] = 0;
            points[3] = 0.0530556603589196;
            points[4] = 0.0413619530906299;
            points[5] = 0;
            points[6] = 0.00783232107320536;
            points[7] = 0.00720299635749822;
            points[8] = 0;
            points[9] = -0.0544316967839374;
            points[10] = 0.0413619530906299;
            points[11] = 0;

            pointArray = points;

            skSegment = Part.SketchManager.CreateSpline((pointArray));
            skSegment.Select4(true, selectData);

            dDoc = (DrawingDoc)Part;
            dDoc.CreateBreakOutSection(0.00254);

            Part.ClearSelection2(true);
        }

        public SldWorks swApp;
    }

}