radialLine.radius([radius]) Equivalent to line

area.x0([x]) If x is specified, sets the x0 accessor to the specified function or number and returns this area

radialLine.context([context]) Equivalent to

line.y([y]) If y is specified, sets the y accessor to the specified function or number and returns this line

radialArea.outerRadius([radius]) Equivalent to

d3.symbols An array containing the set of all built-in symbol types:

d3.curveStepBefore(context)

bundle.beta(beta) Returns a bundle curve with the specified beta in the range [0, 1], representing the bundle

radialArea.defined([defined]) Equivalent to

radialArea.lineEndAngle() Returns a new radial