mapcomplete/scripts/generateTileOverview.ts

50 lines
No EOL
1.4 KiB
TypeScript

/**
* Generates an overview for which tiles exist and which don't
*/
import ScriptUtils from "./ScriptUtils";
import {writeFileSync} from "fs";
function main(args: string[]) {
const directory = args[0]
let zoomLevel = args[1]
const files = ScriptUtils.readDirRecSync(directory, 1)
.filter(f => f.endsWith(".geojson"))
const indices /* Map<string, number[]>*/ = {}
for (const path of files) {
const match = path.match(".*_\([0-9]*\)_\([0-9]*\)_\([0-9]*\).geojson")
if (match === null) {
continue
}
const z = match[1]
if(zoomLevel === undefined){
zoomLevel = z
}else if(zoomLevel !== z){
throw "Mixed zoomlevels detected"
}
const x = match[2]
const y = match[3]
if(indices[x] === undefined){
indices[x] = []
}
indices[x].push(Number(y))
}
indices["zoom"] = zoomLevel;
const match = files[0].match("\(.*\)_\([0-9]*\)_\([0-9]*\)_\([0-9]*\).geojson")
const path = match[1]+"_"+zoomLevel+"_overview.json"
writeFileSync( path, JSON.stringify(indices))
console.log("Written overview for", files.length, " tiles at", path)
}
let args = [...process.argv]
args.splice(0, 2)
args.forEach(file => {
try {
main(args)
} catch (e) {
console.error("Could not handle file ", file, " due to ", e)
}
})