CBCGPChartTransitionFormula::CBCGPChartTransitionFormula	(	BCGPCHART_TRANSITION_CALLBACK	pCallback,
		LPARAM	lParam = NULL
	)

Constructs a CBCGPChartTransitionFormula object.

The constructor.

The transition callback is defined as following: typedef CBCGPChartData (CALLBACK* BCGPCHART_TRANSITION_CALLBACK)(const CArray<CBCGPChartData, CBCGPChartData>& arData, int nDataPointIndex, CBCGPChartSeries* pFormulaSeries, LPARAM lp);

Input parameters:

• arData - array of chart data extracted from all data points located at the specified by nDataPointIndex index
• nDataPointIndex - a zero-based data point index
• pFormulaSeries - a pointer to a parent series (a series whose data points are calculated as a result of the transition)
• lp - user-defined data

Returns: Should return empty data if values at the specified data point index can't be calculated. Otherwise should contain calculated Y value at CBCGPChartData::CI_Y component index.

Parameters

pCallback	A pointer to a callback.
lParam	User-defined data. Will be passed to a callback.