how to make values in X axis horizontal in a JFreeChart?

Question

I am working with JFreeChart in java in order to show some charts. I want to make the value in the X axis vertical to save the space between two dots in the chart ( line chart ).

The picture below shows what i mean:

Thanks

Answer 1

Try it:

...
XYDataset dataset = createDataset();
JFreeChart chart = createChart(dataset);
CategoryAxis categoryAxis = chart.getCategoryPlot().getDomainAxis();
categoryAxis.setCategoryLabelPositions(CategoryLabelPositions.UP_90);
// categoryAxis.setVerticalTickLabels(true);
...