Trips Layer
This example shows how to use the TripsLayer to render animated paths that represent vehicle trips.
<!DOCTYPE html>
<html>
<head>
<title>Extrusion</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;
const LOOP_LENGTH = 1800;
const ANIMATION_SPEED = 0.4;
let time = 0;
let layerData = [];
let deckOverlay;
function initMap() {
map = new google.maps.Map(document.getElementById("map"), {
center: { lat: 40.73, lng: -74 },
zoom: 13,
tilt: 45,
mapId: '2a9fc80dfecb64f8',
fullscreenControl: false,
streetViewControl: false,
zoomControlOptions: {
position: google.maps.ControlPosition.LEFT_BOTTOM,
},
});
deck.carto.setDefaultCredentials({
apiBaseUrl: 'https://gcp-us-east1.api.carto.com',
apiVersion: deck.carto.API_VERSIONS.V3,
accessToken: 'eyJhbGciOiJIUzI1NiJ9.eyJhIjoiYWNfbHFlM3p3Z3UiLCJqdGkiOiI1YjI0OWE2ZCJ9.Y7zB30NJFzq5fPv8W5nkoH5lPXFWQP0uywDtqUg8y8c'
});
// Fetch Data from CARTO
deck.carto.fetchLayerData({
type: deck.carto.MAP_TYPES.QUERY,
source: `SELECT geom, vendor,
TO_JSON_STRING(timestamps) AS timestamps
FROM cartobq.public_account.new_york_trips`,
connection: 'bqconn',
format: deck.carto.FORMATS.GEOJSON
}).then(({ data: geojsonData }) => {
// TripsLayer needs data in the following format
layerData = geojsonData.features.map(f => ({
vendor: f.properties.vendor,
timestamps: JSON.parse(f.properties.timestamps),
path: f.geometry.coordinates
}));
});
deckOverlay = new deck.GoogleMapsOverlay({});
deckOverlay.setMap(map);
initAnimation();
}
function animate() {
time = (time + ANIMATION_SPEED) % LOOP_LENGTH;
window.requestAnimationFrame(animate);
}
function initAnimation() {
setInterval(() => {
deckOverlay.setProps({
layers: [
new deck.TripsLayer({
id: 'trips-layer',
data: layerData,
getPath: d => d.path,
getTimestamps: d => d.timestamps,
getColor: d => (d.vendor === 0 ? [253, 128, 93] : [23, 184, 190]),
opacity: 0.3,
widthMinPixels: 2,
rounded: true,
trailLength: 180,
currentTime: time,
shadowEnabled: false
})
]
});
}, 50);
window.requestAnimationFrame(animate);
}
</script>
</html><!DOCTYPE html>
<html>
<head>
<title>Extrusion</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;
const LOOP_LENGTH = 1800;
const ANIMATION_SPEED = 0.4;
let time = 0;
let layerData = [];
let deckOverlay;
function initMap() {
map = new google.maps.Map(document.getElementById("map"), {
center: { lat: 40.73, lng: -74 },
zoom: 13,
tilt: 45,
mapId: '2a9fc80dfecb64f8',
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
const query = 'SELECT the_geom, vendor, timestamps FROM new_york_trips';
const url = `https://public.carto.com/api/v2/sql?q=${query}&format=geojson`;
fetch(url)
.then(response => response.json())
.then((geojsonData) => {
// TripsLayer needs data in the following format
layerData = geojsonData.features.map(f => ({
vendor: f.properties.vendor,
timestamps: f.properties.timestamps,
path: f.geometry.coordinates[0]
}));
});
deckOverlay = new deck.GoogleMapsOverlay({});
deckOverlay.setMap(map);
initAnimation();
}
function animate() {
time = (time + ANIMATION_SPEED) % LOOP_LENGTH;
window.requestAnimationFrame(animate);
}
function initAnimation() {
setInterval(() => {
deckOverlay.setProps({
layers: [
new deck.TripsLayer({
id: 'trips-layer',
data: layerData,
getPath: d => d.path,
getTimestamps: d => d.timestamps,
getColor: d => (d.vendor === 0 ? [253, 128, 93] : [23, 184, 190]),
opacity: 0.3,
widthMinPixels: 2,
rounded: true,
trailLength: 180,
currentTime: time,
shadowEnabled: false
})
]
});
}, 50);
window.requestAnimationFrame(animate);
}
</script>
</html>Last updated