turf-bbox

turf-bbox

bbox

Takes a set of features, calculates the bbox of all input features, and returns a bounding box.

Parameters

• geojson (Feature | FeatureCollection) input features

Examples

var input = {
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Point",
        "coordinates": [114.175329, 22.2524]
      }
    }, {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Point",
        "coordinates": [114.170007, 22.267969]
      }
    }, {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Point",
        "coordinates": [114.200649, 22.274641]
      }
    }, {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Point",
        "coordinates": [114.186744, 22.265745]
      }
    }
  ]
};

var bbox = turf.bbox(input);

var bboxPolygon = turf.bboxPolygon(bbox);

var resultFeatures = input.features.concat(bboxPolygon);
var result = {
  "type": "FeatureCollection",
  "features": resultFeatures
};

//=result

Returns Array<number> the bounding box of input given as an array in WSEN order (west, south, east, north)

---

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-bbox

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

$ npm install turf