The Polar chart  shows data in circular plot area in polar coordinates where each data point 
		is represented by a distance/radius and an angle, beginning of the coordinate system. 
		A point's location in the polar coordinate systems is defined by the Value 
		property of the PolarSeriesItem which determines the radial coordinate (the radius) and the 
		Angle property which determines the angular coordinate. 	
	
		The ASP.NET AJAX Chart supports three types of Polar series. They are only different in the graphical 
		primitives that are drawn. The primitives are a polyline, polygon and point.
	
	
		- 
			PolarAreaSeries — in this series type the data points are connected with 
			straight line segments that enclose a filled area together with the chart pole.
- 
			PolarLineSeries — this series type is represented on the chart as data points connected with straight line segments.
- 
			PolarScatterSeries — this series type is represented on the chart as non-connected data points.