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react-geojson

v1.5.4

Published

Easy React component which allows you to create, configure and save different GeoJSON areas

Downloads

86

Readme

react-geojson

A (P)React component to render a Google Maps map with the possibility to add polygons (or view/edit existing polygons).

Installation

To install React GeoJSON run npm i react-geojson in your project

Usage

import ReactGeoJSON from 'react-geojson';

...

<ReactGeoJSON
  apiKey="..."
  onMapInitiated={(map) => console.log('Map initiated', map)}
  onPolygonsDrawn={(polygons) => console.log('Available polygons', polygons)}
  scriptLibraries="geometry"
  existingArea={JSON.parse(localStorage.getItem('geojson'))}
  onSave={(data) => localStorage.setItem('geojson', JSON.stringify(data))}
  mapStyles={mapStyles}
  areaStyles={areaStyles}
  zoom={12}
  center={{ lat: 51.9246562, lng: 4.4763706 }}
/>

Or if there are components that depend on the map, you can utilize render props.

<ReactGeoJSON
  apiKey="..."
  onMapInitiated={(map) => console.log('Map initiated', map)}
  existingArea={JSON.parse(localStorage.getItem('geojson'))}
  onSave={(data) => localStorage.setItem('geojson', JSON.stringify(data))}
  mapStyles={mapStyles}
  areaStyles={areaStyles}
  zoom={12}
  center={{ lat: 51.9246562, lng: 4.4763706 }}
>
  {({ map }) => <Component map={map} />}
</ReactGeoJSON>

Props

  • apiKey* - Your Google Maps api key.\
  • onMapInitiated - Callback for when the map has been initiated.\
  • onPolygonsDrawn - Callback for when polygons have been drawn (or updated).\
  • ExistingArea - An existing GeoJSON object to initially show.\
  • onSave - Callback function on save click. Gets the GeoJSON data as argument.\
  • mapStyles - Map styles, as defined on mapstyle.\
  • areaStyles - Polygon styles, documented on Google Developers - Shapes#polygons\
  • zoom - Initial zoom level of the map.\
  • center - Initial center point of the map.\
  • editable - Default true - disable or enable editing polygons shown on map.\
  • mapOptions - Possibility to add more map options to the Google Map.\
  • scriptLibraries - Possibility to add script libraries to the Google Maps url string (ie Drawing tools or Geometries).\

_* is required

Map options

By passing mapOptions as a prop, you're able to change props that are being passed to the Google Maps api. The following props are always set and cannot be overwritten:

  • center - To set the center of the map.
  • zoom - To set the zoom level of the map.
  • disableDefaultUI - Set to true to disable the UI provided by Google Maps.
  • clickableIcons: - Set to false to disable clickable icons that are shown in the map.
  • styles - Map styles that are set by props.

Licence

MIT