Axis *xAxis();

Retrieves the Axis object representing the primary x-axis of the XYChart.

By default, the primary x-axis is the x-axis on the bottom side of the plot area (left side if XYChart.swapXY is in effect), and the secondary x-axis is on the top side of the plot area (right side if XYChart.swapXY is in effect). You may interchange their positions using XYChart.setXAxisOnTop.

None

The Axis object representing the primary x-axis of the XYChart.