Slowly fly to a location
Use flyTo with flyOptions to slowly zoom to a location.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Slowly fly to a location</title>
<meta property="og:description" content="Use flyTo with flyOptions to slowly zoom to a location." />
<meta charset='utf-8'>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel='stylesheet' href='https://unpkg.com/maplibre-gl@4.7.1/dist/maplibre-gl.css' />
<script src='https://unpkg.com/maplibre-gl@4.7.1/dist/maplibre-gl.js'></script>
<style>
body { margin: 0; padding: 0; }
html, body, #map { height: 100%; }
</style>
</head>
<body>
<style>
#fly {
display: block;
position: absolute;
top: 20px;
left: 50%;
transform: translate(-50%);
width: 50%;
height: 40px;
padding: 10px;
border: none;
border-radius: 3px;
font-size: 12px;
text-align: center;
color: #fff;
background: #ee8a65;
}
</style>
<div id="map"></div>
<br />
<button id="fly">Fly</button>
<script>
const start = [-74.5, 40];
const end = [74.5, 40];
const map = new maplibregl.Map({
container: 'map',
style:
'https://api.maptiler.com/maps/streets/style.json?key=get_your_own_OpIi9ZULNHzrESv6T2vL',
center: start,
zoom: 9
});
let isAtStart = true;
document.getElementById('fly').addEventListener('click', () => {
// depending on whether we're currently at point a or b, aim for
// point a or b
const target = isAtStart ? end : start;
// and now we're at the opposite point
isAtStart = !isAtStart;
map.flyTo({
// These options control the ending camera position: centered at
// the target, at zoom level 9, and north up.
center: target,
zoom: 9,
bearing: 0,
// These options control the flight curve, making it move
// slowly and zoom out almost completely before starting
// to pan.
speed: 0.2, // make the flying slow
curve: 1, // change the speed at which it zooms out
// This can be any easing function: it takes a number between
// 0 and 1 and returns another number between 0 and 1.
easing (t) {
return t;
},
// this animation is considered essential with respect to prefers-reduced-motion
essential: true
});
});
</script>
</body>
</html>