贝塞尔曲线

IGeometryBridge接口。 
private void button19_Click(object sender, EventArgs e)

        {

            ISegment[] segementArray = new ISegment[10];

            IPolyline polyline = new PolylineClass();

            for (int i = 0; i < 10;i++ )

            {

                ILine line = new LineClass();

                IPoint frompoint = new PointClass();

                frompoint.PutCoords(i * 10, i * 10);

                IPoint topoint = new PointClass();

                topoint.PutCoords(i * 15, i * 15);

                line.PutCoords(frompoint, topoint);

                segementArray[i] = line as ISegment;

            }

            ISegmentCollection segementcollection = new PolylineClass();