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<!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/[email protected]/dist/maplibre-gl.css' /> | ||
<script src='https://unpkg.com/[email protected]/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 | ||
}); | ||
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let isAtStart = true; | ||
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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; | ||
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// and now we're at the opposite point | ||
isAtStart = !isAtStart; | ||
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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, | ||
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// 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 | ||
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// 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; | ||
}, | ||
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// this animation is considered essential with respect to prefers-reduced-motion | ||
essential: true | ||
}); | ||
}); | ||
</script> | ||
</body> | ||
</html> |