arc(arguments…) Generates an arc for the given arguments. The arguments are arbitrary; they are simply propagated

radialArea.angle([angle]) Equivalent to area

area.x1([x]) If x is specified, sets the x1 accessor to the specified function or number and returns this area

radialArea.context([context]) Equivalent to

d3.curveLinear(context)

pie.sortValues([compare]) If compare is specified, sets the value comparator to the specified function and

d3.symbolCircle The circle symbol type.

radialArea.innerRadius([radius]) Equivalent to

d3.stack() Constructs a new stack generator with the default settings.

d3.curveNatural(context)