# turf-convex

> # convex

Latest version **3.0.12** (published 2016-07-05) · ISC license · 0 weekly downloads

> **Deprecated.** This package is deprecated.

## Install

```sh
npm install turf-convex
pnpm add turf-convex
yarn add turf-convex
bun add turf-convex
```

## Health

**Score 10/100 (F)** — status: deprecated.

Negative: deprecated.

## Facts

| | |
|---|---|
| Version | 3.0.12 |
| Published | 2016-07-05 |
| First published | 2014-05-29 |
| Weekly downloads | 0 |
| License | ISC |
| TypeScript types | none |
| Module format | CommonJS |
| Dependencies | 3 |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 3 |
| Author | Morgan Herlocker |
| Maintainers | cspanring, cwmma, jseppi, jvrousseau, lyzidiamond, morganherlocker, mourner, tcql, tmcw |
| Keywords | turf, gis |

## Links

- npm: https://www.npmjs.com/package/turf-convex
- Repository: https://github.com/Turfjs/turf-convex
- Issues: https://github.com/Turfjs/turf-convex/issues
- npm.io page: https://npm.io/package/turf-convex

## Dependencies (3)

- [turf-meta](https://npm.io/package/turf-meta.md) ^3.0.12
- [convex-hull](https://npm.io/package/convex-hull.md) ^1.0.3
- [turf-helpers](https://npm.io/package/turf-helpers.md) ^3.0.12

## Recent versions

- 3.0.12 (latest) — 2016-07-05
- 3.0.7-canary.ae89c8b3 (canary) — 2016-06-14
- 3.0.10 — 2016-06-15
- 3.0.7 — 2016-06-13
- 3.0.5 — 2016-05-17
- 3.0.1 — 2016-05-16
- 3.0.0-canary.7879bf6c — 2016-05-16
- 3.0.0-canary.2f5f7167 — 2016-05-16
- 1.0.1 — 2015-02-06
- 1.0.0 — 2014-12-11
- 0.1.1 — 2014-08-08
- 0.0.2 — 2014-08-07
- 0.1.0 — 2014-07-01
- 0.0.1 — 2014-06-03
- 0.0.0 — 2014-05-29

## README

# turf-convex

# convex

Takes a set of [points](Point) and returns a
[convex hull](http://en.wikipedia.org/wiki/Convex_hull) polygon.

Internally this uses
the [convex-hull](https://github.com/mikolalysenko/convex-hull) module that
implements a [monotone chain hull](http://en.wikibooks.org/wiki/Algorithm_Implementation/Geometry/Convex_hull/Monotone_chain).

**Parameters**

-   `featurecollection` **FeatureCollection<Point>** input points

**Examples**

```javascript
var points = {
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Point",
        "coordinates": [10.195312, 43.755225]
      }
    }, {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Point",
        "coordinates": [10.404052, 43.8424511]
      }
    }, {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Point",
        "coordinates": [10.579833, 43.659924]
      }
    }, {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Point",
        "coordinates": [10.360107, 43.516688]
      }
    }, {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Point",
        "coordinates": [10.14038, 43.588348]
      }
    }, {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Point",
        "coordinates": [10.195312, 43.755225]
      }
    }
  ]
};

var hull = turf.convex(points);

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

//=result
```

Returns **Feature<Polygon>** a convex hull

---

This module is part of the [Turfjs project](http://turfjs.org/), an open source
module collection dedicated to geographic algorithms. It is maintained in the
[Turfjs/turf](https://github.com/Turfjs/turf) repository, where you can create
PRs and issues.

### Installation

Install this module individually:

```sh
$ npm install turf-convex
```

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

```sh
$ npm install turf
```

---
_Source: https://npm.io/package/turf-convex · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._