mapcomplete/scripts/postal_code_tools/prepPostalCodesHulls.ts
2021-12-09 19:18:36 +01:00

54 lines
No EOL
1.6 KiB
TypeScript

import * as fs from "fs";
import ScriptUtils from "../ScriptUtils";
import {writeFileSync} from "fs";
function handleFile(file: string, postalCode: number) {
const geojson = JSON.parse(fs.readFileSync(file, "UTF8"))
geojson.properties = {
type: "boundary",
"boundary": "postal_code",
"postal_code": postalCode + ""
}
return geojson
}
function getKnownPostalCodes(): number[] {
return fs.readFileSync("./scripts/postal_code_tools/knownPostalCodes.csv", "UTF8").split("\n")
.map(line => Number(line.split(",")[1]))
}
function main(args: string[]) {
const dir = args[0]
const knownPostals = new Set<number>(getKnownPostalCodes())
const files = ScriptUtils.readDirRecSync(dir, 1)
const allFiles = []
const skipped = []
for (const file of files) {
const nameParts = file.split("-")
const postalCodeStr = nameParts[nameParts.length - 1]
const postalCode = Number(postalCodeStr.substr(0, postalCodeStr.length - ".geojson.convex.geojson".length))
if (isNaN(postalCode)) {
console.error("Not a number: ", postalCodeStr)
continue
}
if (knownPostals.has(postalCode)) {
skipped.push(postalCode)
ScriptUtils.erasableLog("Skipping boundary for ", postalCode, "as it is already known - skipped ", skipped.length, "already")
continue
}
allFiles.push(handleFile(file, postalCode))
}
writeFileSync("all_postal_codes_filtered.geojson", JSON.stringify({
type: "FeatureCollection",
features: allFiles
}))
}
let args = [...process.argv]
args.splice(0, 2)
main(args)