d3-svg-legend/src/web.js

A legend component for d3. Given a d3.scale it can create either a color legend, size legend, or symbol legend.

import color from './color'
import size from './size'
import symbol from './symbol'
import helpers from './helpers'

d3.legendColor = color
d3.legendSize = size
d3.legendSymbol = symbol
d3.legendHelpers = helpers