This sample is to rotate the Y-axis label to -45 degrees.
"labelRotation:-45" is defined to rotate the Y-axis label to -45 degrees.
The label can be rotated only if the internal fonts are used.

●Layout
<horizontalAxisRenderers>
	<Axis2DRenderer axis="{vAxis}" labelRotation="-45"
	fontSize="13" tickPlacement="none"/>
</horizontalAxisRenderers>