{
const context = DOM.context2d(width, height)
yield context.canvas;
const path = d3.geoPath(projection, context)
const response = await fetch('https://flatgeobuf.org/test/data/UScounties.fgb')
for await (let feature of flatgeobuf.deserialize(response.body))
context.beginPath(), path(feature), context.stroke()
}
projection = d3.geoAlbersUsa()
.scale(1272)
.translate([width / 2, height / 2])
width = 954
height = 600
d3 = require("d3-geo@3")
flatgeobuf = require("flatgeobuf@4/dist/flatgeobuf-geojson.min.js")
Purpose-built for displays of data
Observable is your go-to platform for exploring data and creating expressive data visualizations. Use reactive JavaScript notebooks for prototyping and a collaborative canvas for visual data exploration and dashboard creation.
