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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
<meta name="apple-mobile-web-app-capable" content="yes">
<title>OpenLayers UTFGrid Demo</title>
<link rel="stylesheet" href="openlayers/theme/default/style.css" type="text/css">
<link rel="stylesheet" href="style.css" type="text/css">
<style>
#attrs {
height: 1.5em;
}
#controlToggle li { list-style: none; }
</style>
</head>
<body>
<h1 id="title">OpenLayers UTFGrid Demo</h1>
<div>
<div id="shortdesc">
This page demonstrates the use of the OpenLayers UTFGrid Controls.
</div>
<div id="map" class="smallmap"></div>
<p>
When the selected event is triggered, the underlying feature
attributes are shown below.
</p>
<div id="attrs"> </div>
<ul id="controlToggle">
<li>
<input type="radio" name="type" value="move" id="moveHandler"
onclick="toggleControl(this);" checked="checked" />
<label for="moveHandler">Move</label>
</li>
<li>
<input type="radio" name="type" value="hover" id="hoverHandler"
onclick="toggleControl(this);" />
<label for="hoverHandler">Hover</label>
</li>
<li>
<input type="radio" name="type" value="click" id="clickHandler"
onclick="toggleControl(this);" />
<label for="clickHandler">Click</label>
</li>
</ul>
</div>
<div id="docs">
<p>UTFGrids can be used to output highly optimized feature "hit grids."
The UTFGrid encoding scheme encodes interactivity data for a tile in a
space efficient manner. It is designed to be used in browsers for
interactive features like displaying tooltips without having to hit the
server for an "info query."
</p>
<p>
See the <a href="utfgrid.js" target="_blank">utfgrid.js source</a> for
detail on using UTFGrids in OpenLayers. For more info, view the
<a href="https://github.com/mapbox/utfgrid-spec">UTFGrid Specification</a>.
</p>
</div>
<script src="openlayers/OpenLayers.js"></script>
<script src="utfgrid.js"></script>
</body>
</html>
|
