@turf/hex-grid

What is @turf/hex-grid?

@turf/hex-grid is a module from the Turf.js library that allows you to create a hexagonal grid within a bounding box. This can be useful for spatial analysis, data visualization, and geographic information system (GIS) applications.

What are @turf/hex-grid's main functionalities?

Create a Hexagonal Grid

This feature allows you to create a hexagonal grid within a specified bounding box. The `bbox` parameter defines the bounding box, `cellSide` specifies the length of each hexagon's side, and `options` can include units of measurement.

const turf = require('@turf/turf');

const bbox = [-96, 31, -84, 40];
const cellSide = 50;
const options = { units: 'miles' };
const hexgrid = turf.hexGrid(bbox, cellSide, options);

console.log(JSON.stringify(hexgrid));

Other packages similar to @turf/hex-grid

d3-hexbin

d3-hexbin is a module from the D3.js library that provides tools for creating hexagonal binning layouts. It is particularly useful for data visualization in web applications. Compared to @turf/hex-grid, d3-hexbin is more focused on visual representation and less on spatial analysis.

h3-js

h3-js is a JavaScript library for working with Uber's H3 hexagonal hierarchical geospatial indexing system. It offers more advanced features for spatial indexing and analysis compared to @turf/hex-grid, which is more focused on simple hexagonal grid creation.

README

@turf/hex-grid

hexGrid

Takes a bounding box and a cell size in degrees and returns a FeatureCollection of flat-topped hexagons (Polygon features) aligned in an "odd-q" vertical grid as described in Hexagonal Grids.

Parameters

• bbox Array<number> extent in [minX, minY, maxX, maxY] order
• cellSize number dimension of cell in specified units
• units [string] used in calculating cellSize, can be degrees, radians, miles, or kilometers (optional, default kilometers)
• triangles [boolean] whether to return as triangles instead of hexagons (optional, default false)

Examples

var bbox = [-96,31,-84,40];
var cellSize = 50;
var units = 'miles';

var hexgrid = turf.hexGrid(bbox, cellSize, units);

//addToMap
var addToMap = [hexgrid]

Returns FeatureCollection<Polygon> a hexagonal grid

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This module is part of the Turfjs project, an open source module collection dedicated to geographic algorithms. It is maintained in the Turfjs/turf repository, where you can create PRs and issues.

Installation

Install this module individually:

$ npm install @turf/hex-grid

Or install the Turf module that includes it as a function:

$ npm install @turf/turf