Created
April 11, 2011 16:08
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Demo of OpenLayers with translate3d. Better performance for pinch/pan on iOS devices.
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<!DOCTYPE html> | |
<html> | |
<head> | |
<title>OpenLayers Mobile</title> | |
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> | |
<base href="http://openlayers.org/dev/examples/" /> | |
<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0;"> | |
<meta name="apple-mobile-web-app-capable" content="yes"> | |
<link rel="stylesheet" href="style.mobile.css" type="text/css"> | |
<script src="../OpenLayers.mobile.js"></script> | |
<script src="mobile.js"></script> | |
<style> | |
html, body { | |
margin : 0; | |
padding : 0; | |
height : 100%; | |
width : 100%; | |
} | |
@media only screen and (max-width: 600px) { | |
html, body { | |
height : 117%; | |
} | |
} | |
#map { | |
width : 100%; | |
position : relative; | |
height : 100%; | |
} | |
.olControlAttribution { | |
position : absolute; | |
font-size : 10px; | |
bottom : 0 !important; | |
right : 0 !important; | |
background : rgba(0,0,0,0.1); | |
font-family : Arial; | |
padding : 2px 4px; | |
border-radius : 5px 0 0 0; | |
} | |
div.olControlZoomPanel .olControlZoomInItemInactive, | |
div.olControlZoomPanel .olControlZoomOutItemInactive { | |
background: rgba(0,0,0,0.2); | |
position: absolute; | |
} | |
div.olControlZoomPanel .olControlZoomInItemInactive { | |
border-radius: 5px 5px 0 0; | |
} | |
div.olControlZoomPanel .olControlZoomOutItemInactive { | |
border-radius: 0 0 5px 5px ; | |
top: 37px; | |
} | |
div.olControlZoomPanel .olControlZoomOutItemInactive:after , | |
div.olControlZoomPanel .olControlZoomInItemInactive:after{ | |
font-weight: bold; | |
content : '+'; | |
font-size : 36px; | |
padding: 7px; | |
z-index: 2000; | |
color : #fff; | |
line-height: 1em; | |
} | |
div.olControlZoomPanel .olControlZoomOutItemInactive:after{ | |
content: '–'; | |
line-height: 0.9em; | |
padding: 0 8px; | |
} | |
div.olControlZoomPanel .olControlZoomToMaxExtentItemInactive { | |
display: none; | |
} | |
#title, #tags, #shortdesc { | |
display: none; | |
} | |
img.olTileImage { | |
/* Hack to vastly improve pinch-zoom-performance */ | |
-webkit-transform: translate3d(0, 0, 0); | |
} | |
</style> | |
</head> | |
<body> | |
<h1 id="title">Basic Mobile Example</h1> | |
<div id="tags"> | |
mobile | |
</div> | |
<p id="shortdesc"> | |
A basic full-screen map for mobile devices. | |
</p> | |
<div id="map"></div> | |
<script> | |
init(); | |
</script> | |
</body> | |
</html> |
Not sure. Eric Lemoine has created a patch that use translate3d for panning, but I haven't had time to check it out yet. http://trac.openlayers.org/ticket/3259
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Cool! is it possible to get the same kind of performance benefits for panning the map?