private IElement createPolylineElement() throws Exception	{		ISegmentCollection segmentCollection = new Path();				CircularArc arc = new CircularArc();		Point start = new Point();		Point end = new Point();		Point middle = new Point();		start.putCoords(200, 200);		end.putCoords(400, 200);		middle.putCoords(300, 250);		arc.constructThreePoints(start, end, middle, false);		segmentCollection.addSegment(arc, null, null);				Polyline polyline = new Polyline();		IGeometry geometry = (IGeometry)(segmentCollection);		polyline.addGeometry(geometry, null, null);				ILineSymbol lineSymbol = MakeNewSimpleLineSymbol();		LineElement lineElement = new LineElement();		lineElement.setSymbol(lineSymbol);		lineElement.setGeometry(polyline);				return lineElement;	}