CBCGPPoint CBCGPChartVisualObject::ScreenPointFromChartData	(	const CBCGPChartData &	chartData,
		int	nDataPointIndex,
		BOOL &	bIsEmpty,
		CBCGPChartSeries *	pSeries
	)		const

Given a chart data returns a screen point in chart's owner client coordinates.

This method can be called to convert ChartData (which can be extracted from a data point) to a screen point in chart owner's client coordinates.

You can call CBCGPChartAxis::PointFromValue to convert a specific value to a screen coordinate (X or Y, depending on axis orientation).