Angle lines

The angle lines options are used to configure angled lines that radiate from the center of the chart to the point labels.

caution

The angle lines can be ONLY applied to radial axes.
These options only apply if display is true.

The RadialAngleLines provides all set and get methods to manage the configuration, as following:

// creates a radial axis 
RadialAxis axis = new RadialAxis(chart);
// enables the angle lines
axis.getAngleLines().setDisplay(true);
// sets and gets the line width value
axis.getAngleLines().setLineWidth(2);

int lineWidth = axis.getAngleLines().getLineWidth();

Table with options:

Name	Type	Scriptable	Description
borderDash	int[]	Yes	Length and spacing of dashes on grid lines. See MDN.
borderDashOffset	double	Yes	Offset for line dashes. See MDN.
color	String - IsColor	Yes	Color of angled lines.
display	boolean	-	If true, angle lines are shown.
lineWidth	int	Yes	Width of angled lines.

Scriptable

Scriptable options at grid level accept a callback which is called for each of the underlying data values. See more details in Configuring charts section.

All scriptable options callbacks will get a ScaleContext instance.

// creates a radial axis 
RadialAxis axis = new RadialAxis(chart);
// enables the angle lines
axis.getAngleLines().setDisplay(true);
// sets the option by a callback 
axis.getAngleLines().setColor(new ColorCallback<ScaleContext>(){

   @Override
   public IsColor invoke(ScaleContext context){
      // logic
      return color;
   }
});

The following options can be set by a callback:

Name	Callback	Returned types
borderDash	BorderDashCallback<ScaleContext>	int
borderDashOffset	BorderDashOffsetCallback<ScaleContext>	double
color	ColorCallback<ScaleContext>	String - IsColor
lineWidth	WidthCallback<ScaleContext>	int