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Scripts(offline): skip already existing columns

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This commit is contained in:
Pieter Vander Vennet 2025-07-31 11:57:23 +02:00
parent 7cd31b204d
commit a23b829e44
1 changed files with 19 additions and 2 deletions
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21
scripts/generatePmTilesExtracts.ts
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@ -3,6 +3,7 @@ import { Tiles } from "../src/Models/TileRange"
import { OfflineBasemapManager } from "../src/service-worker/OfflineBasemapManager"
import { spawn } from "child_process"
import { existsSync } from "fs"
class GeneratePmTilesExtracts extends Script {
@ -33,18 +34,27 @@ class GeneratePmTilesExtracts extends Script {
if(maxzoom !== undefined){
maxzoomflag = " --maxzoom="+maxzoom
}
return this.startProcess(`extract planet-latest.pmtiles --download-threads=1 --minzoom=${z}${maxzoomflag} --bbox=${[min_lon, min_lat + 0.0001, max_lon, max_lat].join(",")} ${z}-${x}-${y}.pmtiles`)
return this.startProcess(`extract planet-latest.pmtiles --download-threads=1 --minzoom=${z}${maxzoomflag} --bbox=${[min_lon, min_lat + 0.0001, max_lon, max_lat].join(",")} ${this.getFilename(z, x, y)}`)
}
private* generateField(z: number, maxzoom?: number): Generator<Promise<void>> {
const boundary = 2 << (z - 1)
for (let x = 0; x < boundary; x++) {
if (existsSync(this.getFilename(z, x, boundary))) {
// Skip this column, already exists
console.log("Skipping column ", x, "at zoom", z)
continue
}
for (let y = 0; y < boundary; y++) {
yield this.generateArchive(z, x, y, maxzoom)
}
}
}
private getFilename(z: number, x: number, y: number) {
return `${z}-${x}-${y}.pmitles`
}
private* generateAll(): Generator<Promise<void>> {
const zoomlevels: Record<number, number> = OfflineBasemapManager.zoomelevels
for (const key in zoomlevels) {
@ -74,6 +84,12 @@ class GeneratePmTilesExtracts extends Script {
console.log("Please specify a target directory")
return
}
let estimate = 0
for (const key in OfflineBasemapManager.zoomelevels) {
const z: number = Number(key)
const boundary = 2 << (z - 1)
estimate += boundary * boundary
}
console.log("Target dir is:", this.targetDir)
const numberOfThreads = 512
const generator = this.generateAll()
@ -83,7 +99,8 @@ class GeneratePmTilesExtracts extends Script {
batch = this.createBatch(generator, numberOfThreads)
await Promise.all(batch)
done += batch.length
console.log("Completed", numberOfThreads, "processes; finished: " + done)
const perc = ("" + ((done / estimate) / 100)).substring(0, 5)
console.log("Completed", numberOfThreads, `processes; ${done} / ${estimate}, ${perc}%`)
} while (batch.length > 0)
}