'宣言
Public Interface IPolarCoordinateValue Inherits GrapeCity.DataVisualization.Chart.ICloneable(Of IPolarCoordinateValue), GrapeCity.DataVisualization.Chart.IEquatable(Of IPolarCoordinateValue)
public interface IPolarCoordinateValue : GrapeCity.DataVisualization.Chart.ICloneable<IPolarCoordinateValue>, GrapeCity.DataVisualization.Chart.IEquatable<IPolarCoordinateValue>