void CBCGPChartTrendFormula::SetTrendRange | ( | double | dblMinVal, |
double | dblMaxVal | ||
) |
Sets trend line range.
Call this method to set trend line displayed range (in X axis coordinates). If dblMinVal and dblMaxVal are equal, the range is considered empty and the trend line is drawn between minimum and maximum displayed values of X axis.
You should set the range if the formula series is a single series displayed on the X axis. Alternatively you can call CBCGPChartAxis::SetFixedDisplayRange.
dblMinVal | Minimum range value. |
dblMaxVal | Maximum range value. |