turf-envelope

turf envelope module

turf.envelope(fc)

Takes any number of features and returns a rectangular Polygon that encompasses all vertices.

Parameters

parameter	type	description
fc	FeatureCollection	input features

Example

var fc = {
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {
        "name": "Location A"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [-75.343, 39.984]
      }
    }, {
      "type": "Feature",
      "properties": {
        "name": "Location B"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [-75.833, 39.284]
      }
    }, {
      "type": "Feature",
      "properties": {
        "name": "Location C"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [-75.534, 39.123]
      }
    }
  ]
};

var enveloped = turf.envelope(fc);

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

//=result

Returns Feature.<Polygon>, a rectangular Polygon feature that encompasses all vertices

Installation

Requires nodejs.

$ npm install turf-envelope

Tests

$ npm test