d3.geoTwoPointEquidistant(point0, point1) d3.geoTwoPointEquidistantRaw(z0) The two-point equidistant projection. This projection does not support projection.rotate, as the rotation is fixed by the two given points. Note: to show the whole Earth, this projection requires clipping to spherical polygons, which is not yet supported in D3. However, you can typically show most of the Earth by using D3’s great-circle clipping.

locale.format(specifier) Returns a new format function for the given string specifier. The returned function takes a number as the only argument, and returns a string representing the formatted number. The general form of a specifier is: [​[fill]align][sign][symbol][0][width][,][.precision][type] The fill can be any character. The presence of a fill character is signaled by the align character following it, which must be one of the following: > - Forces the field to be right-aligned wit

selection.exit() Returns the exit selection: existing DOM elements in the selection for which no new datum was found. The exit selection is determined by the previous selection.data, and is thus empty until the selection is joined to data. If the exit selection is retrieved more than once after a data join, subsequent calls return the empty selection. The exit selection is typically used to remove “superfluous” elements corresponding to old data. For example, to update the DIV elements creat

d3.path() Constructs a new path serializer that implements CanvasPathMethods.

d3.geoGinzburg4() d3.geoGinzburg4Raw The Ginzburg IV projection.

path.rect(x, y, w, h) Creates a new subpath containing just the four points ⟨x, y⟩, ⟨x + w, y⟩, ⟨x + w, y + h⟩, ⟨x, y + h⟩, with those four points connected by straight lines, and then marks the subpath as closed. Equivalent to context.rect and uses SVG’s “lineto” commands.

circle.precision([angle]) If precision is specified, sets the circle precision to the specified angle in degrees, and returns this circle generator. The precision may also be specified as a function; this function will be invoked whenever a circle is generated, being passed any arguments passed to the circle generator. If precision is not specified, returns the current precision accessor, which defaults to: function precision() { return 6; } Small circles do not follow great arcs and thus

d3.geoMtFlatPolarQuartic() d3.geoMtFlatPolarQuarticRaw The McBryde–Thomas flat-polar quartic pseudocylindrical equal-area projection.

d3.geoHill() d3.geoHillRaw(K) Hill eucyclic projection is psuedoconic and equal-area.

d3.geoBromley() d3.geoBromleyRaw The Bromley projection is a rescaled Mollweide projection.