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Last active August 29, 2015 14:00
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index.html
<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>Swipe Layers</title>
<meta name='viewport' content='width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no' />
<script src='https://api.tiles.mapbox.com/mapbox.js/v1.6.2/mapbox.js'></script>
<link href='https://api.tiles.mapbox.com/mapbox.js/v1.6.2/mapbox.css' rel='stylesheet' />
<style>
body { margin:0; padding:0; }
#map { position:absolute; top:0; bottom:0; width:100%; }
</style>
</head>
<body>
<style>
#range {
width: 100%;
position: absolute;
}
.leaflet-top .leaflet-control-zoom {
margin-top: 20px;
}
</style>
<div id='map'></div>
<input id="range" type="range" min="0" max="1.0" step="any" style="width: 100%; position: absolute" />
<script>
var map = L.mapbox.map('map');
L.mapbox.tileLayer('nate.map-wn3mlq7o').addTo(map);
var overlay = L.mapbox.tileLayer('nate.brazil').addTo(map);
var range = document.getElementById('range');
function clip() {
var nw = map.containerPointToLayerPoint([0, 0]),
se = map.containerPointToLayerPoint(map.getSize()),
clipX = nw.x + (se.x - nw.x) * range.value;
overlay.getContainer().style.clip = 'rect(' + [nw.y, clipX, se.y, nw.x].join('px,') + 'px)';
}
range['oninput' in range ? 'oninput' : 'onchange'] = clip;
map.on('move', clip);
map.setView([-12.9833, -38.5057], 15);
</script>
</body>
</html>
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