How to use

center

function

in

Array

constructor(props) {
  super(props);

  this.state = {
   viewport: {
    width: window.innerWidth,
    height: 600,
    latitude: mapConfig.center[0],
    longitude: mapConfig.center[1],
    zoom: mapConfig.zoom,
    isDragging: false,
    startDragLngLat: mapConfig.center,
    pitch: 50,
    bearing: 0
   }
  };

  this.onChangeViewport = this.onChangeViewport.bind(this);
 }

render() {
  // create an array with marker components
  const PigeonMarkers = markers.map(marker => (
   <Marker key={`marker_${marker.name}`} anchor={marker.latlng} payload={marker.name} onClick={this.onMarkerClick} />
  ));

  return (
   <div className="map">
    <Map
     width={window.innerWidth}
     height={600}
     defaultCenter={mapConfig.center}
     defaultZoom={mapConfig.zoom}
     provider={getProvider}
    >
     {PigeonMarkers}
    </Map>
   </div>
  );
 }

render() {
  // create an array with marker components
  const LeafletMarkers = markers.map(marker => (
   <Marker position={marker.latlng} key={`marker_${marker.name}`}>
    <Popup>
     <span>{marker.name}</span>
    </Popup>
   </Marker>
  ));

  return (
   <div className="map">
    <Map center={mapConfig.center} zoom={mapConfig.zoom} className="map__reactleaflet">
     <TileLayer
      url="https://cartodb-basemaps-{s}.global.ssl.fastly.net/light_all/{z}/{x}/{y}.png"
      attribution='&copy; <a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a>, &copy; <a href="https://carto.com/attribution">CARTO</a>'
     />
     {LeafletMarkers}
     {/* You can now try to find Alabama on a Map to see how it looks like now with GeoJSON*/}
     <GeoJSON data={data} style={this.getStyle} />
    </Map>
   </div>
  );
 }

render() {
  const GoogleMapsMarkers = markers.map(marker => (
   <CustomMarker
    key={`marker_${marker.name}`}
    lat={marker.latlng[0]}
    lng={marker.latlng[1]}
    text={marker.name}
   />
  ));

  return (
   <GoogleMapReact
    defaultCenter={mapConfig.center}
    defaultZoom={mapConfig.zoom}
    layerTypes={['TrafficLayer', 'TransitLayer']}
    bootstrapURLKeys={{
     key: CONFIG.GOOGLE_MAPS_API_KEY,
     language: 'de'
    }}
   >
    {GoogleMapsMarkers}
   </GoogleMapReact>
  );
 }

constructor(props) {
  super(props);

  this.state = {
   viewport: {
    width: window.innerWidth,
    height: 600,
    latitude: mapConfig.center[0],
    longitude: mapConfig.center[1],
    zoom: mapConfig.zoom,
    isDragging: false,
    startDragLngLat: mapConfig.center,
    pitch: 50,
    bearing: 0
   },
   geojson: null
  };

  requestJson(`${process.env.BASENAME}data/berlin_bezirke.json`, (error, response) => {
   if (!error) {
    this.setState({ geojson: response });
   }
  });


  this.onChangeViewport = this.onChangeViewport.bind(this);
 }