I'm trying to automatically remove a self-intersection from a geojson file. Another stackexchange site suggested I use a package called turf.
I'm not quite familiar with how I should set up the IO. The file I am trying to fix is here:
I am trying this:
const fname="ks_kansas_zip_codes_geo.min.json";
const fout="fixed_kansas.json";
const turf = require('@turf/turf');
const fs = require('fs');
var tmp = fs.readFile(fname, function(err, x) {
var fixed = turf.unkinkPolygon(turf.polygon(x));
console.log(fixed);
return(fixed)
});
// fs.writeFileSync(fout, tmp);
The error I get is:
Error: coordinates is required
at polygon (/home/username/node_modules/@turf/helpers/main.js:229:29)
The error I get is:
undefined
> { type: 'FeatureCollection', features: [] }
> tmp
undefined
Not really sure how to use this library to operate on a geojson file. I see a couple of other examples, but nothing end-to-end that would help me even load it so I can make what I'm looking for, which is more like:
node myscript.js ks_kansas_zip_codes_geo.min.json fixed_ks.json
