private void CreateRenderingOptions()
		{
			renderingOptions = null;
			if (dataSet != null)
			{
				renderingOptions = new RenderingOptions();
				renderingOptions.MinValue = double.MaxValue;
				renderingOptions.MaxValue = double.MinValue;

				int startIndex = (dataSet.Length < DataPointCount) ? 0 : dataSet.Length - DataPointCount;

				for (int i = startIndex; i < dataSet.Length; i++)
				{
					renderingOptions.MinValue = Math.Min(dataSet[i].Beat, renderingOptions.MinValue);
					renderingOptions.MaxValue = Math.Max(dataSet[i].Beat, renderingOptions.MaxValue);
				}
			}
		}