react-map-gl#WebMercatorViewport JavaScript Examples

The following examples show how to use react-map-gl#WebMercatorViewport. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: map.js    From covid19-dashboard with MIT License 5 votes vote down vote up 
Map = ({code, interactiveLayerIds, hideAttribution, onHover, onClick, children}) => {
  const mapRef = useRef()

  const [viewport, setViewport] = useState(defaultViewport)

  const handleResize = useCallback(() => {
    if (mapRef && mapRef.current) {
      const {width, height} = mapRef.current.getBoundingClientRect()

      const {bbox} = geo[code]
      const padding = width > 50 && height > 50 ? 20 : 0
      const viewport = new WebMercatorViewport({width, height})
        .fitBounds([[bbox[0], bbox[1]], [bbox[2], bbox[3]]], {padding})

      setViewport(viewport)
    }
  }, [mapRef, code])

  useEffect(() => {
    handleResize()
    window.addEventListener('resize', handleResize)

    return () => {
      window.removeEventListener('resize', handleResize)
    }
  }, [handleResize])

  return (
    <div ref={mapRef} className='react-map-container'>
      {viewport && (
        <ReactMapGL
          {...viewport}
          width='100%'
          height='100%'
          mapStyle='https://etalab-tiles.fr/styles/osm-bright/style.json'
          interactiveLayerIds={interactiveLayerIds}
          onHover={onHover}
          onClick={onClick}
          scrollZoom={false}
          dragPan={false}
          dragRotate={false}
          doubleClickZoom={false}
          touchZoom={false}
          attributionControl={!hideAttribution}
        >
          {children}
        </ReactMapGL>
      )}

      <style jsx>{`
          .react-map-container {
            flex: 1;
          }
          `}</style>
    </div>
  )
}