BCGControlBar Pro for MFC
BOOL CBCGPChartScaleBreakOptions::m_bStartFromZero

Specifies how to calculate major unit within scale parts.

Consider the following example.

Input data values: 300, 400, 500, 10000, 10500.

A scale break will be created to separate range (300-500) and (10000-10500).

If m_bStartFromZero is TRUE, the first major unit will be calculated for the range 0 - 500, otherwise for range 300-500.

Setting this parameter to FALSE may be important when all ranges are far from 0.