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chriswhong/convert csv with WKT to GeoJson

Last active March 5, 2020 13:19
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How to parse a CSV with a well-known text geometry column and convert to geojson FeatureCollection with the 'wellknown' package
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convert csv with WKT to GeoJson
// Use papa parse to download and parse a CSV
Papa.parse('data/nyc_zoning_lots.csv', {
download: true,
header: true,
complete: ({ data }) => {
// transform array of objects to geojson FeatureCollection
const FC = {
type: 'FeatureCollection',
features: data.map((row) => { // map csv rows to geojson features
const geometry = wellknown.parse(row.geom) // WKT to geojson geometry
delete row.geom
const properties = {
...row // the rest of the row becomes properties
}
return {
geometry,
properties,
}
})
}
customLayerSetup(FC)
}
})
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