BCGSuite for MFC
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.

pCallbackA pointer to a callback.
lParamUser-defined data. Will be passed to a callback.