tile.scale([scale]) If scale is specified, sets this tile layout’s scale to the specified number scale and returns this tile layout. If scale is not specified, returns the current layout scale.

projection.clipAngle([angle]) If angle is specified, sets the projection’s clipping circle radius to the specified angle in degrees and returns the projection. If angle is null, switches to antimeridian cutting rather than small-circle clipping. If angle is not specified, returns the current clip angle which defaults to null. Small-circle clipping is independent of viewport clipping via projection.clipExtent.

d3.treemapBinary(node, x0, y0, x1, y1) Recursively partitions the specified nodes into an approximately-balanced binary tree, choosing horizontal partitioning for wide rectangles and vertical partitioning for tall rectangles.

d3.schemeSet2 An array of eight categorical colors represented as RGB hexadecimal strings.

d3.csvParse(string[, row]) Equivalent to dsvFormat(",").parse.

d3.easeCircle(t) d3.easeCircleInOut(t) Symmetric circular easing; scales circleIn for t in [0, 0.5] and circleOut for t in [0.5, 1].

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

gingery.lobes([lobes]) Defaults to 6.

elastic.period(p) Returns a new elastic easing with the specified period p.

selection.property(name[, value]) Some HTML elements have special properties that are not addressable using attributes or styles, such as a form field’s text value and a checkbox’s checked boolean. Use this method to get or set these properties. If a value is specified, sets the property with the specified name to the specified value on selected elements. If the value is a constant, then all elements are given the same property value; otherwise, if the value is a function, then the function