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