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<?xml version="1.0" encoding="UTF-8"?> | |
<!DOCTYPE html> | |
<html xmlns="http://www.w3.org/1999/xhtml"> | |
<head> | |
<link rel="stylesheet" href="http://c.tile.openstreetmap.pl/leaflet/dist/leaflet.css" /> | |
<script type="application/javascript" src="http://c.tile.openstreetmap.pl/leaflet.bpg/bpgdec.js"></script> | |
<script type="application/javascript" src="http://c.tile.openstreetmap.pl/leaflet/dist/leaflet.js"></script> | |
<script type="application/javascript" src="http://c.tile.openstreetmap.pl/leaflet.bpg/TileLayer.BPG.js"></script> | |
<style> | |
body { margin:0; padding:0; } | |
#map { position:absolute; top:0; bottom:0; width:100%; } | |
</style> | |
</head> | |
<body> | |
<style type='text/css'> | |
body { | |
font:20px/20px 'Helvetica Neue',sans-serif; | |
background:#f2efe9; | |
} | |
#swipe { | |
background:#222; | |
position:absolute; | |
bottom:0; | |
left:0; | |
right:0; | |
z-index:1000; | |
padding:10px; | |
height:30px; | |
} | |
#swipe #handle { | |
position:absolute; | |
height:20px; | |
padding:5px; | |
background:#fff; | |
font-weight:bold; | |
border:1px solid #333; | |
color:blue; | |
cursor:pointer; | |
-webkit-user-select: none; | |
} | |
.map-attribution { | |
bottom: 50px; | |
} | |
#osm1 { | |
position:absolute; | |
left:10px; | |
top:0px; | |
z-index:99; | |
} | |
#osm2 { | |
position:absolute; | |
right:10px; | |
top:0px; | |
z-index:99; | |
} | |
</style> | |
<div id='swipe'> | |
<div id='handle'>drag</div> | |
</div> | |
<div id='map' /> | |
<h1 id='osm1'>.png</h1> | |
<h1 id='osm2'>.bpg at -q 32 (62% ratio)</h1> | |
<script> | |
var map = L.map('map'); | |
var l0 = new L.TileLayer( | |
'http://c.tile.openstreetmap.pl/osmapa.pl/{z}/{x}/{y}.png', { | |
maxZoom: 18, | |
attribution: 'Dane <a href="http://osm.org/">OpenStreetMap</a>', | |
}); | |
var l1 = new L.TileLayer.BPG( | |
'http://c.tile.openstreetmap.pl/osmapa.pl.bpg/{z}/{x}/{y}.bpg', { | |
maxZoom: 18, | |
attribution: 'Dane <a href="http://osm.org/">OpenStreetMap</a>', | |
}); | |
map.addLayer(l0); | |
map.addLayer(l1); | |
map.setView(new L.LatLng(52, 21), 16); | |
var handle = document.getElementById('handle'), | |
dragging = false, | |
divide; | |
handle.onmousedown = function() { dragging = true; return false; } | |
document.onmouseup = function() { dragging = false; } | |
document.onmousemove = function(e) { | |
if (!dragging) | |
return; | |
setDivide(map.mouseEventToContainerPoint(e).x); | |
} | |
function setDivide(x) { | |
var size = map.getSize(); | |
divide = Math.max(40, Math.min(x, size.x - 40)); | |
handle.style.left = (divide - 40) + 'px'; | |
updateClip(); | |
} | |
function updateClip() { | |
var size = map.getSize(); | |
var offset = map.containerPointToLayerPoint(L.point(0, 0)); | |
l0.getContainer().style.clip = 'rect(' + offset.y + 'px ' + | |
(offset.x + divide) + 'px ' + | |
(offset.y + size.y) + 'px ' + | |
offset.x + 'px)'; | |
l1.getContainer().style.clip = 'rect(' + offset.y + 'px ' + | |
(offset.x + size.x) + 'px ' + | |
(offset.y + size.y) + 'px ' + | |
(offset.x + divide) + 'px)'; | |
} | |
setDivide(400); | |
map.on('move', updateClip); | |
</script> | |
</body> | |
</html> |
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