^{ICurveFittingFunction.GetCurveYValue
ICurveFittingFunction}

<sup>function GetCurveYValue(X: Double): Double;

Type Library
TeeChartx

Description
The GetCurveYValue function returns the Y vertical value that corresponds to the X value parameter.</sup>

^{The internal Curve fitting polynomy is used to calculate the Y value.}

^{This function can be called after the Series has been displayed.}

^{The internal polynomy coefficients are calculated just before the Series is drawn.}

^{CurveFittingFunction draws one point for each of the DataSource Series points.}

^{It internally calls the GetCurveYValue function to calculate the correct Y value that corresponds to each point X coordinate.}

^{X and Y values are expressed in the associated Axis scales.}