Demonstrates animated pan, zoom, and rotation.
This example shows how to use the beforeRender function on the Map to run one or more animations.
<!DOCTYPE html>
<html>
<head>
<title>Animation example</title>
<script src="https://code.jquery.com/jquery-1.11.2.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="http://openlayers.org/en/v3.9.0/css/ol.css" type="text/css">
<script src="http://openlayers.org/en/v3.9.0/build/ol.js"></script>
</head>
<body>
<div class="container-fluid">
<div class="row-fluid">
<div class="span12">
<div id="map" class="map"></div>
</div>
</div>
<div class="row-fluid">
<div class="span12">
<button id="rotate-left" title="Rotate clockwise">↻</button>
<button id="rotate-right" title="Rotate counterclockwise">↺</button>
<button id="rotate-around-rome">Rotate around Rome</button>
<button id="pan-to-london">Pan to London</button>
<button id="elastic-to-moscow">Elastic to Moscow</button>
<button id="bounce-to-istanbul">Bounce to Istanbul</button>
<button id="spin-to-rome">Spin to Rome</button>
<button id="fly-to-bern">Fly to Bern</button>
<button id="spiral-to-madrid">Spiral to Madrid</button>
</div>
</div>
</div>
<script>
// from https://github.com/DmitryBaranovskiy/raphael
function bounce(t) {
var s = 7.5625, p = 2.75, l;
if (t < (1 / p)) {
l = s * t * t;
} else {
if (t < (2 / p)) {
t -= (1.5 / p);
l = s * t * t + 0.75;
} else {
if (t < (2.5 / p)) {
t -= (2.25 / p);
l = s * t * t + 0.9375;
} else {
t -= (2.625 / p);
l = s * t * t + 0.984375;
}
}
}
return l;
}
// from https://github.com/DmitryBaranovskiy/raphael
function elastic(t) {
return Math.pow(2, -10 * t) * Math.sin((t - 0.075) * (2 * Math.PI) / 0.3) + 1;
}
var london = ol.proj.fromLonLat([-0.12755, 51.507222]);
var moscow = ol.proj.fromLonLat([37.6178, 55.7517]);
var istanbul = ol.proj.fromLonLat([28.9744, 41.0128]);
var rome = ol.proj.fromLonLat([12.5, 41.9]);
var bern = ol.proj.fromLonLat([7.4458, 46.95]);
var madrid = ol.proj.fromLonLat([-3.683333, 40.4]);
var view = new ol.View({
// the view's initial state
center: istanbul,
zoom: 6
});
var map = new ol.Map({
layers: [
new ol.layer.Tile({
preload: 4,
source: new ol.source.OSM()
})
],
// Improve user experience by loading tiles while animating. Will make
// animations stutter on mobile or slow devices.
loadTilesWhileAnimating: true,
target: 'map',
controls: ol.control.defaults({
attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
collapsible: false
})
}),
view: view
});
var rotateLeft = document.getElementById('rotate-left');
rotateLeft.addEventListener('click', function() {
var rotateLeft = ol.animation.rotate({
duration: 2000,
rotation: -4 * Math.PI
});
map.beforeRender(rotateLeft);
}, false);
var rotateRight = document.getElementById('rotate-right');
rotateRight.addEventListener('click', function() {
var rotateRight = ol.animation.rotate({
duration: 2000,
rotation: 4 * Math.PI
});
map.beforeRender(rotateRight);
}, false);
var rotateAroundRome = document.getElementById('rotate-around-rome');
rotateAroundRome.addEventListener('click', function() {
var currentRotation = view.getRotation();
var rotateAroundRome = ol.animation.rotate({
anchor: rome,
duration: 1000,
rotation: currentRotation
});
map.beforeRender(rotateAroundRome);
view.rotate(currentRotation + (Math.PI / 2), rome);
}, false);
var panToLondon = document.getElementById('pan-to-london');
panToLondon.addEventListener('click', function() {
var pan = ol.animation.pan({
duration: 2000,
source: /** @type {ol.Coordinate} */ (view.getCenter())
});
map.beforeRender(pan);
view.setCenter(london);
}, false);
var elasticToMoscow = document.getElementById('elastic-to-moscow');
elasticToMoscow.addEventListener('click', function() {
var pan = ol.animation.pan({
duration: 2000,
easing: elastic,
source: /** @type {ol.Coordinate} */ (view.getCenter())
});
map.beforeRender(pan);
view.setCenter(moscow);
}, false);
var bounceToIstanbul = document.getElementById('bounce-to-istanbul');
bounceToIstanbul.addEventListener('click', function() {
var pan = ol.animation.pan({
duration: 2000,
easing: bounce,
source: /** @type {ol.Coordinate} */ (view.getCenter())
});
map.beforeRender(pan);
view.setCenter(istanbul);
}, false);
var spinToRome = document.getElementById('spin-to-rome');
spinToRome.addEventListener('click', function() {
var duration = 2000;
var start = +new Date();
var pan = ol.animation.pan({
duration: duration,
source: /** @type {ol.Coordinate} */ (view.getCenter()),
start: start
});
var rotate = ol.animation.rotate({
duration: duration,
rotation: 2 * Math.PI,
start: start
});
map.beforeRender(pan, rotate);
view.setCenter(rome);
}, false);
var flyToBern = document.getElementById('fly-to-bern');
flyToBern.addEventListener('click', function() {
var duration = 2000;
var start = +new Date();
var pan = ol.animation.pan({
duration: duration,
source: /** @type {ol.Coordinate} */ (view.getCenter()),
start: start
});
var bounce = ol.animation.bounce({
duration: duration,
resolution: 4 * view.getResolution(),
start: start
});
map.beforeRender(pan, bounce);
view.setCenter(bern);
}, false);
var spiralToMadrid = document.getElementById('spiral-to-madrid');
spiralToMadrid.addEventListener('click', function() {
var duration = 2000;
var start = +new Date();
var pan = ol.animation.pan({
duration: duration,
source: /** @type {ol.Coordinate} */ (view.getCenter()),
start: start
});
var bounce = ol.animation.bounce({
duration: duration,
resolution: 2 * view.getResolution(),
start: start
});
var rotate = ol.animation.rotate({
duration: duration,
rotation: -4 * Math.PI,
start: start
});
map.beforeRender(pan, bounce, rotate);
view.setCenter(madrid);
}, false);
</script>
</body>
</html>