Arc Layer
Last updated
Last updated
This example shows how to use the ArcLayer to render raised arcs joining pairs of source and target points.
<!DOCTYPE html>
<html>
<head>
<title>Arc Layer</title>
<script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
<script src="https://unpkg.com/deck.gl@^8.8.0/dist.min.js"></script>
<script src="https://unpkg.com/@deck.gl/carto@^8.8.0/dist.min.js"></script>
<style>
#map {
height: 100%;
}
html,
body {
height: 100%;
margin: 0;
padding: 0;
}
</style>
</head>
<body>
<div id="map"></div>
<script
src="https://maps.googleapis.com/maps/api/js?key=AIzaSyDvHtBZM79O5uGTBT1ZOWOKW2_FVMstHNs&callback=initMap&libraries=&v=beta"
async
></script>
</body>
<script type="text/javascript">
let map;
function initMap() {
map = new google.maps.Map(document.getElementById("map"), {
center: { lat: 30, lng: 10 },
zoom: 2,
tilt: 30,
mapId: '74fb72d0338f9316',
fullscreenControl: false,
streetViewControl: false,
zoomControlOptions: {
position: google.maps.ControlPosition.LEFT_BOTTOM,
},
});
deck.carto.setDefaultCredentials({
apiBaseUrl: 'https://gcp-us-east1.api.carto.com',
accessToken: 'eyJhbGciOiJIUzI1NiJ9.eyJhIjoiYWNfbHFlM3p3Z3UiLCJqdGkiOiI1YjI0OWE2ZCJ9.Y7zB30NJFzq5fPv8W5nkoH5lPXFWQP0uywDtqUg8y8c'
});
// Fetch Data from CARTO
const geojsonData = deck.carto.fetchLayerData({
type: deck.carto.MAP_TYPES.QUERY,
source: `SELECT geom, scalerank FROM cartobq.public_account.airports_to_london WHERE scalerank > 7`,
connection: 'bqconn',
format: deck.carto.FORMATS.GEOJSON
});
const deckOverlay = new deck.GoogleMapsOverlay({
layers: [
new deck.ArcLayer({
id: 'arc-layer',
data: geojsonData.then(({ data }) => data.features),
getSourcePosition: f => [-0.4531566, 51.4709959], // London
getTargetPosition: f => f.geometry.coordinates,
getSourceColor: [0, 128, 200],
getTargetColor: [200, 0, 80],
getWidth: 1
})
]
});
deckOverlay.setMap(map);
}
</script>
</html><!DOCTYPE html>
<html>
<head>
<title>Arc Layer</title>
<script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
<script src="https://unpkg.com/deck.gl@^8.8.0/dist.min.js"></script>
<script src="https://unpkg.com/@deck.gl/carto@^8.8.0/dist.min.js"></script>
<style>
#map {
height: 100%;
}
html,
body {
height: 100%;
margin: 0;
padding: 0;
}
</style>
</head>
<body>
<div id="map"></div>
<script
src="https://maps.googleapis.com/maps/api/js?key=AIzaSyDvHtBZM79O5uGTBT1ZOWOKW2_FVMstHNs&callback=initMap&libraries=&v=beta"
async
></script>
</body>
<script type="text/javascript">
let map;
function initMap() {
map = new google.maps.Map(document.getElementById("map"), {
center: { lat: 30, lng: 10 },
zoom: 2,
tilt: 30,
mapId: '74fb72d0338f9316',
fullscreenControl: false,
streetViewControl: false,
zoomControlOptions: {
position: google.maps.ControlPosition.LEFT_BOTTOM,
},
});
deck.carto.setDefaultCredentials({
username: 'public',
apiKey: 'default_public',
apiVersion: deck.carto.API_VERSIONS.V2,
});
// Fetch Data from CARTO
// Notice that you can use any Deck.gl layer with CARTO datasets getting GeoJSON data from CARTO's API.
const fetchData = () => {
const url = 'https://public.carto.com/api/v2/sql?q=SELECT the_geom, scalerank FROM airports_to_london WHERE scalerank > 7&format=geojson';
return(fetch(url).then(response => response.json()));
}
const deckOverlay = new deck.GoogleMapsOverlay({
layers: [
new deck.ArcLayer({
id: 'arc-layer',
data: fetchData().then(geojsonData => geojsonData.features),
getSourcePosition: f => [-0.4531566, 51.4709959], // London
getTargetPosition: f => f.geometry.coordinates,
getSourceColor: [0, 128, 200],
getTargetColor: [200, 0, 80],
getWidth: 1
})
]
});
deckOverlay.setMap(map);
}
</script>
</html>