catmullRom.alpha(alpha) Returns a cubic Catmull–Rom curve with the specified alpha in the range [0, 1]. If

d3.curveStepBefore(context)

radialArea(data) Equivalent to area.

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

arc.outerRadius([radius]) If radius is specified, sets the outer radius to the specified function or number

area(data) Generates an area for the given array of data. Depending on this area generator’s associated

curve.point(x, y) Indicates a new point in the current line segment with the given x- and y-values

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

d3.symbolStar The pentagonal star (pentagram) symbol type.

arc.cornerRadius([radius]) If radius is specified, sets the corner radius to the specified function or number