arc.centroid(arguments…) Computes the midpoint [x, y] of the center line of the arc that would be

arc.context([context]) If context is specified, sets the context and returns this arc generator. If context

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

radialArea.context([context]) Equivalent to

arc.padRadius([radius]) If radius is specified, sets the pad radius to the specified function or number and

d3.curveCatmullRomOpen(context)

radialArea.lineOuterRadius() Returns a new radial

d3.curveCardinalClosed(context)

d3.radialLine()

d3.stackOffsetSilhouette(series, order) Shifts the baseline down such that the center of the streamgraph is always at