uniformly distributed points inside a geojson feature / polygon

1-README.md

Description

This script generates points inside a given geojson feature / polygon using turf.

You can use geojson for visualization or creating your own geojson by hand.

Input

Output

2-script.js

import { readFileSync } from 'fs'
import { URL } from 'url'
import bbox from '@turf/bbox'
import pointGrid from '@turf/point-grid'

const FEATURE_FILE_PATH = new URL('./4-my-polygon.geojson', import.meta.url).pathname
const POINT_DISTANCE_IN_KM = 5;

const feature = JSON.parse(readFileSync(FEATURE_FILE_PATH, 'utf-8'))
const boundingBox = bbox(feature)
const points = pointGrid(boundingBox, POINT_DISTANCE_IN_KM, { unit: 'kilometers', mask: feature })

console.log(JSON.stringify(points))

3-package.json

{
  "name": "geopoints",
  "version": "1.0.0",
  "type": "module",
  "description": "calculate the geopoints inside the given polygon",
  "main": "2-script.js",
  "author": "Yengas",
  "license": "ISC",
  "dependencies": {
    "@turf/bbox": "^6.5.0",
    "@turf/point-grid": "^6.5.0"
  }
}

4-my-polygon.geojson