Hi Oka,
You may use Axis.setAutoScale to ask ChartDirector to always start the y-axis from 0 when auto-scaling the axis. For example, in Java/C#, the code is like:
c.yAxis().setAutoScale(0.05, 0.05, 1);
In PHP, the code is like:
$c->yAxis->setAutoScale(0.05, 0.05, 1);
Hope this can help.
Regards
Peter Kwan |