Gantt chart image size

[syella]

Hi all,
i have a problem with image generated by a gantt chart...
here is a screenshot :

As you can see, more i have tick, more i have space at the top of the image (i have highlighted the area with the green line). when i reduce the image size, the area in green stays the same. i would like to dispatch more uniformly the ticks, in order to delete the space at the top of the image.
Any ideas please?
thanks a lot,
syella

[mourid]

I ve the same problem, do you find a solution for this please

[syella]

No, sorry

[david.gilbert]

Did you try the setLowerMargin() and setUpperMargin() methods in the CategoryAxis class?

[mourid]

i try this
chart.getCategoryPlot().getRangeAxis().setUpperMargin(0);

but there is not any change

[david.gilbert]

The range axis is the one at the top showing the time of day.

[mourid]

Ok you have right, thank you
so what is for the margin like in the photo up
Thnak you