React leaflet markercluster

React wrapper of Leaflet.markercluster for react-leaflet

Examples with the Documentation: https://yuzhva.github.io/react-leaflet-markercluster/ CodeSandbox Getting Started

Description

If you are faced with an issue with markers or polygons overlapping during map zooming, or they are overlapping because they are close to each other - you probably need to group them. That is what you can do with react-leaflet-markercluster.

Just grab your markers or ClusterableRegions inside <MarkerClusterGroup /> component, right after <TileLayer />:

import MarkerClusterGroup from "react-leaflet-markercluster";

<MarkerClusterGroup>
  <Marker position={[49.8397, 24.0297]} />
  <Marker position={[52.2297, 21.0122]} />
  <Marker position={[51.5074, -0.0901]} />
</MarkerClusterGroup>;

Note: Before getting started, please see these useful guides:

• Leaflet Quick Start Guide.
• react-leaflet Installation.

Table of Contents

• Getting started
• API
• How to run DEV env
• Contributors ✨
• Contributing
• License

Getting started

1. Install package:

yarn add react-leaflet-markercluster@next # yarn
npm install react-leaflet-markercluster # npm

The react-leaflet-markercluster requires leaflet.markercluster as peerDependency

(Leaflet and react-leaflet also should be installed)

yarn add leaflet.markercluster leaflet react-leaflet # yarn
npm install leaflet.markercluster leaflet react-leaflet # npm

2. Import markercluster and leaflet styles:

//sass
@import '~leaflet/dist/leaflet.css'; 
@import '~react-leaflet-markercluster/styles'; 

//cjs
require('~leaflet/dist/leaflet.css');
require('react-leaflet-markercluster/styles'); 

//esm
import 'leaflet/dist/leaflet.css'
import 'react-leaflet-markercluster/styles'

Or include CSS styles directly to the head of HTML file:

<link rel="stylesheet" href="https://unpkg.com/leaflet/dist/leaflet.css" />

<link
  rel="stylesheet"
  href="https://unpkg.com/react-leaflet-markercluster/styles"
/>

3. Write some simple react-leaflet Map:

import { MapContainer, TileLayer, Marker } from "react-leaflet";

<MapContainer
  className="markercluster-map"
  center={[51.0, 19.0]}
  zoom={4}
  maxZoom={18}
>
  <TileLayer
    url="https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png"
    attribution='&copy; <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'
  />

  <Marker position={[49.8397, 24.0297]} />
  <Marker position={[52.2297, 21.0122]} />
  <Marker position={[51.5074, -0.0901]} />
</MapContainer>;

NOTE: Remember to add map styles .markercluster-map { height: 90vh; }.

4. Just put your markers or ClusterableRegions inside <MarkerClusterGroup /> component, right after <TileLayer />:

import MarkerClusterGroup from "react-leaflet-markercluster";

<MarkerClusterGroup>
  <Marker position={[49.8397, 24.0297]} />
  <Marker position={[52.2297, 21.0122]} />
  <Marker position={[51.5074, -0.0901]} />
</MarkerClusterGroup>;

More examples with the Documentation CodeSandbox Getting Started

API

Just pass whatever option you need from All Leaflet.markercluster Options to MarkerClusterGroup as prop.

For example:

<MarkerClusterGroup showCoverageOnHover={false} />

or:

const createClusterCustomIcon = function (cluster) {
  return L.divIcon({
    html: `<span>${cluster.getChildCount()}</span>`,
    className: 'marker-cluster-custom',
    iconSize: L.point(40, 40, true),
  });
}

<MarkerClusterGroup iconCreateFunction={createClusterCustomIcon} />

P.S: Examples for v1 are available at CHANGELOG.md

Event listeners

You are able to add any listener, supported by Leaflet, with simple on property prefix.

How to run DEV env

1. Clone the repo:

git clone https://github.com/YUzhva/react-leaflet-markercluster.git

2. Install all dependencies:

yarn install --no-lockfile # yarn
npm install # npm

3. Start the server:

yarn dev # yarn
npm run dev # npm

4. After starting the server, storybook should automatically open the following address:

http://localhost:8080/

Contributors ✨

Thanks goes to these wonderful people: Avatars rendered by contributors-img.

Special thanks to:

• @webcarrot for react-leaflet v2 support
• @CodeCutterUK for react-leaflet v3 support

Contributing

All sources are placed in the ./src folder:

1. Fork the repo.

2. Edit react-leaflet-markercluster.js plugin or style.scss style files.

3. Commit your changes and open Pull Request.

:beer: Thank you for contribution :beer:

UMD

UMD builds are available on unpkg:

<!-- unpkg, production code (minified) -->
<script src="https://unpkg.com/react-leaflet-markercluster/dist/index.js"></script>
<!-- unpkg, development code -->
<script src="https://unpkg.com/react-leaflet-markercluster/src/react-leaflet-markercluster.js"></script>

<!-- unpkg, production styles (minified) -->
<link
  rel="stylesheet"
  type="text/css"
  href="https://unpkg.com/react-leaflet-markercluster/styles"
/>
<!-- unpkg, development styles -->
<link
  rel="stylesheet"
  type="text/css"
  href="https://unpkg.com/react-leaflet-markercluster/src/styles.scss"
/>

License

MIT License, see LICENSE file.