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// reupload from https://www.census.gov/geo/maps-data/data/cbf/cbf_tracts.html
buffer = fetch('https://gist.githubusercontent.com/asg017/2cdeb7063740a52ebd69237bb0994039/raw/470a676a35c3d08b221b9998cf722aa55a113a56/cb_2017_72_tract_500k.zip')
.then(r=>r.arrayBuffer())
data = zip(buffer, {base64: false, checkCRC32: true}).files
geojson = {
const fileNames = Object.keys(data);
const name = fileNames[0].substring(0, fileNames[0].indexOf('.'))
if( !data[`${name}.shp`] || !data[`${name}.dbf`]) {
throw Error(`No .shp or .dbf for ${name}!`)
}
return shapefile.read(data[`${name}.shp`].asArrayBuffer(),data[`${name}.dbf`].asArrayBuffer() )
}
plot(geojson)
shapefile = require('shapefile')
zip = require("https://bundle.run/node-zip")
import {plot} from '@asg017/quick-map'
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