BCGControlBar Pro for MFC
void CBCGPChartBoxPlotSeries::SetColumnOverlapPercent ( int  nPercent = 0)

Sets the distance between boxes.

The distance is measured in percents from a box size. It specifies a gap between boxes in a group (a "group" means a couple of data points of distinct series having the same X coordinate and therefore placed on the same major unit).

This setting has the same effect for all series displayed on the same axis, e.g. it's enough to call this method for one series. For example:


"Series1" and "Series2" will be displayed with distance -25%.

Negative value specifies separation, positive - overlapping.

nPercentSpecifies the overlap percent and should be in range [-100, 100].