Check if images are inside a polygon

is-inside.js

#!/usr/bin/env node

// Example usage:
//
//  ./is-inside.js base/path/to/images -21,149 -21.1,152 -24,152.2 -24.1,148.9

import glob from "glob";
import * as fs from "fs";
import * as path from "path";
import * as turf from "@turf/turf";
import * as process from "process";
import ExifReader from "exifreader";

const args = process.argv.slice(2);
const files = glob.sync(path.join(args.shift(), "**/*.JPG"));

const poly = turf.polygon([
  [...args, args[0]].map(str => {
    return str
      .split(",")
      .map(d => parseFloat(d))
      .reverse();
  })
]);

function isInside(file) {
  const buffer = fs.readFileSync(file);
  const tags = ExifReader.load(buffer, { expanded: true });
  const point = turf.point([tags.gps.Longitude, tags.gps.Latitude]);
  return turf.booleanPointInPolygon(point, poly);
}

files.forEach(file => {
  if (isInside(file)) {
    process.stdout.write(`${file}\n`);
  }
});