react-leaflet#Circle TypeScript Examples

The following examples show how to use react-leaflet#Circle. 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: ThreatCircle.tsx    From project-tauntaun with GNU Lesser General Public License v3.0 6 votes vote down vote up 
export function ThreatCircleNonMemo(props: ThreatCircleProps) {
  const { radius, position, color: colorProp, weight: weightProp } = props;
  const color = colorProp ? colorProp : 'red';
  const weight = weightProp ? weightProp : 3;

  return (
    <Circle
      center={{ lat: position.lat, lng: position.lon }}
      radius={radius}
      stroke={true}
      color={color}
      fill={false}
      fillOpacity={0.01}
      opacity={0.25}
      weight={weight}
    />
  );
}
Example #2
Source File: index.tsx    From aqualink-app with MIT License 4 votes vote down vote up 
HomepageMap = ({
  initialCenter,
  initialZoom,
  initialBounds,
  collection,
  showAlertLevelLegend,
  showWaterMark,
  geolocationEnabled,
  defaultLayerName,
  legendBottom,
  legendLeft,
  classes,
}: HomepageMapProps) => {
  const [legendName, setLegendName] = useState<string>(defaultLayerName || "");
  const [currentLocation, setCurrentLocation] = useState<[number, number]>();
  const [currentLocationAccuracy, setCurrentLocationAccuracy] =
    useState<number>();
  const [currentLocationErrorMessage, setCurrentLocationErrorMessage] =
    useState<string>();
  const loading = useSelector(sitesListLoadingSelector);
  const searchResult = useSelector(searchResultSelector);
  const ref = useRef<Map>(null);

  const onLocationSearch = () => {
    if (navigator.geolocation) {
      navigator.geolocation.getCurrentPosition(
        (position) => {
          const latLng = [
            position.coords.latitude,
            position.coords.longitude,
          ] as [number, number];
          setCurrentLocation(latLng);
          setCurrentLocationAccuracy(position.coords.accuracy);

          // zoom to user location
          const { current } = ref;
          if (current && current.leafletElement) {
            const map = current.leafletElement;
            const newZoom = Math.max(map.getZoom() || 6, 8);
            map.flyTo(latLng, newZoom, { duration: 2 });
          }
        },
        () => {
          setCurrentLocationErrorMessage("Unable to find your location");
        }
      );
    } else {
      setCurrentLocationErrorMessage(
        "Geolocation is not supported by your browser"
      );
    }
  };

  const onLocationErrorAlertClose = () =>
    setCurrentLocationErrorMessage(undefined);

  useEffect(() => {
    const { current } = ref;
    if (current && current.leafletElement) {
      const map = current.leafletElement;
      if (searchResult) {
        map.fitBounds([
          searchResult.bbox.southWest,
          searchResult.bbox.northEast,
        ]);
      }
    }
  }, [searchResult]);

  const onBaseLayerChange = ({ name }: LayersControlEvent) => {
    setLegendName(name);
  };

  return loading ? (
    <div className={classes.loading}>
      <CircularProgress size="4rem" thickness={1} />
    </div>
  ) : (
    <Map
      id="sites-map"
      ref={ref}
      preferCanvas
      maxBoundsViscosity={1.0}
      className={classes.map}
      center={initialCenter}
      zoom={initialZoom}
      minZoom={collection ? 1 : 2} // If we're on dashboard page, the map's wrapping div is smaller, so we need to allow higher zoom
      worldCopyJump
      onbaselayerchange={onBaseLayerChange}
      bounds={initialBounds}
      maxBounds={mapConstants.MAX_BOUNDS}
    >
      <Snackbar
        open={Boolean(currentLocationErrorMessage)}
        autoHideDuration={5000}
        anchorOrigin={{ vertical: "top", horizontal: "right" }}
        onClose={onLocationErrorAlertClose}
      >
        <Alert severity="error" onClose={onLocationErrorAlertClose}>
          {currentLocationErrorMessage}
        </Alert>
      </Snackbar>
      <TileLayer attribution={attribution} url={tileURL} />
      <SofarLayers defaultLayerName={defaultLayerName} />
      <SiteMarkers collection={collection} />
      {currentLocation && (
        <Marker icon={currentLocationMarker} position={currentLocation} />
      )}
      {currentLocation && currentLocationAccuracy && (
        <Circle
          center={{ lat: currentLocation[0], lng: currentLocation[1] }}
          radius={currentLocationAccuracy}
        />
      )}
      <Legend legendName={legendName} bottom={legendBottom} left={legendLeft} />
      {showAlertLevelLegend && <AlertLevelLegend />}
      {showWaterMark && <div className="mapbox-wordmark" />}
      {geolocationEnabled && (
        <div className={classes.locationIconButton}>
          <IconButton onClick={onLocationSearch}>
            <MyLocationIcon color="primary" />
          </IconButton>
        </div>
      )}
    </Map>
  );
}