Visualization toolmaker. Founder @observablehq. Creator @d3. Former @nytgraphics. Pronounced BOSS-tock.
data = cstParseRows(source, ([name, value, color = fillColor]) => ({
name,
value: value === undefined ? undefined : +value,
color
}))
treemap = data => d3.treemap()
.tile(d3.treemapBinary) // TODO Allow d3.treemapSquarify?
.size([width, height])
.padding(1)
.round(true)
(d3.hierarchy(data)
.sum(d => d.children ? 0 : isNaN(d.value) ? 1 : d.value)
.sort((a, b) => b.height - a.height || b.value - a.value))
format = d3.format(",d")
height = 640
fillColor = "#e4e4e4"
lightColor = "#fff"
darkColor = "#000"
import {rasterize, serialize} from "@mbostock/saving-svg"
import {cstParseRows} from "@mbostock/comma-separated-tree"
d3 = require("d3@6")
One platform to build and deploy the best data apps
Experiment and prototype by building visualizations in live JavaScript notebooks. Collaborate with your team and decide which concepts to build out.
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