geojson-to-tile-images

This is a Node.js package that allows you to convert GeoJSON to tile images.

Installation

npm install geojson-to-tile-images

Usage

import GeoJSONToTileImages from 'geojson-to-tile-images';
import * as fs from 'fs';

const geoJSON = {
	"type": "FeatureCollection",
	"features": [
		{
			"type": "Feature",
			"properties": {
				"fill": "red",
				"fill-opacity": 0.75
			},
			"geometry": {
				"coordinates": [
					[
						[
							-77.01321657760587,
							38.89222010921145
						],
						[
							-77.01321657760587,
							38.88703541565883
						],
						[
							-77.00512620244129,
							38.88703541565883
						],
						[
							-77.00512620244129,
							38.89222010921145
						],
						[
							-77.01321657760587,
							38.89222010921145
						]
					]
				],
				"type": "Polygon"
			}
		}
	]
};

(async () => {
	const image = await GeoJSONToTileImages(geoJSON, [15, 9374, 12536], {
		"backgroundColor": {
			"r": 0,
			"g": 0,
			"b": 0,
			"alpha": 0.5
		},
		"size": 256
	});
	fs.writeFileSync('image.png', image);
})();

Supported GeoJSON Types

• Polygon
• LineString

Supported GeoJSON Properties

• fill (only for Polygon)
• fill-opacity (only for Polygon)
• stroke (only for LineString)
• stroke-opacity (only for LineString)
• stroke-width (only for LineString)

License

MIT