d3.easePolyIn(t) Polynomial easing; raises t to the specified exponent. If the exponent is not specified, it defaults to 3, equivalent to cubicIn.

node.copy() Return a deep copy of the subtree starting at this node. (The returned deep copy shares the same data, however.) The returned node is the root of a new tree; the returned node’s parent is always null and its depth is always zero.

transform.applyY(y) Returns the transformation of the specified y-coordinate, y × k + ty.

d3.interpolateHslLong(a, b) Like interpolateHsl, but does not use the shortest path between hues.

d3.geoConicEqualArea() d3.geoConicEqualAreaRaw Alber’s conic equal-area projection; see d3-geo.

transition.nodes() Returns an array of all (non-null) elements in this transition. Equivalent to selection.nodes.

d3.interpolateOrRd(t) d3.schemeOrRd Given a number t in the range [0,1], returns the corresponding color from the “OrRd” sequential color scheme represented as an RGB string.

radialArea.innerRadius([radius]) Equivalent to area.y0, except the accessor returns the radius: the distance from the origin ⟨0,0⟩.

dsv2json [options…] [file] Converts the specified DSV input file to JSON. If file is not specified, defaults to reading from stdin. For example, to convert to CSV to JSON: csv2json < example.csv > example.json Or to convert CSV to a newline-delimited JSON stream: csv2json -n < example.csv > example.ndjson

projection.clipExtent([extent]) If extent is specified, sets the projection’s viewport clip extent to the specified bounds in pixels and returns the projection. The extent bounds are specified as an array [[x₀, y₀], [x₁, y₁]], where x₀ is the left-side of the viewport, y₀ is the top, x₁ is the right and y₁ is the bottom. If extent is null, no viewport clipping is performed. If extent is not specified, returns the current viewport clip extent which defaults to null. Viewport clipping is indep