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Andreas Hocevar
2015-09-10 15:23:57 +02:00
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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="chrome=1">
<meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css" type="text/css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" type="text/css">
<link rel="stylesheet" href="./resources/prism/prism.css" type="text/css">
<link rel="stylesheet" href="../css/ol.css" type="text/css">
<link rel="stylesheet" href="./resources/layout.css" type="text/css">
<link rel="stylesheet" href="kml-timezones.css">
<script src="./resources/zeroclipboard/ZeroClipboard.min.js"></script>
<title>Timezones in KML</title>
</head>
<body>
<header class="navbar" role="navigation">
<div class="container" id="navbar-inner-container">
<a class="navbar-brand" href="./"><img src="./resources/logo-70x70.png">&nbsp;OpenLayers 3 Examples</a>
</div>
</header>
<div class="container-fluid">
<div class="row-fluid">
<div class="span12">
<div id="map" class="map"><div id="info"></div></div>
</div>
</div>
<div class="row-fluid">
<div class="span12">
<h4 id="title">Timezones in KML</h4>
<p id="shortdesc">Demonstrates rendering timezones from KML.</p>
<div id="docs"><p>This example parses a KML file and renders the features as a vector layer. The layer is given a <code>ol.style.Style</code> that fills timezones yellow with an opacity calculated based on the current offset to local noon.</p>
</div>
<div id="tags">KML, vector, style</div>
<div id="api-links">Related API documentation: <ul class="inline"><li><a href="../apidoc/ol.Map.html" title="API documentation for ol.Map">ol.Map</a></li>,<li><a href="../apidoc/ol.View.html" title="API documentation for ol.View">ol.View</a></li>,<li><a href="../apidoc/ol.format.KML.html" title="API documentation for ol.format.KML">ol.format.KML</a></li>,<li><a href="../apidoc/ol.layer.Tile.html" title="API documentation for ol.layer.Tile">ol.layer.Tile</a></li>,<li><a href="../apidoc/ol.layer.Vector.html" title="API documentation for ol.layer.Vector">ol.layer.Vector</a></li>,<li><a href="../apidoc/ol.source.Stamen.html" title="API documentation for ol.source.Stamen">ol.source.Stamen</a></li>,<li><a href="../apidoc/ol.source.Vector.html" title="API documentation for ol.source.Vector">ol.source.Vector</a></li>,<li><a href="../apidoc/ol.style.Fill.html" title="API documentation for ol.style.Fill">ol.style.Fill</a></li>,<li><a href="../apidoc/ol.style.Stroke.html" title="API documentation for ol.style.Stroke">ol.style.Stroke</a></li>,<li><a href="../apidoc/ol.style.Style.html" title="API documentation for ol.style.Style">ol.style.Style</a></li></ul></div>
</div>
</div>
<div class="row-fluid">
<div id="source-controls">
<a id="copy-button"><i class="fa fa-clipboard"></i> Copy</a>
<a id="jsfiddle-button"><i class="fa fa-jsfiddle"></i> Edit</a>
</div>
<form method="POST" id="jsfiddle-form" target="_blank" action="http://jsfiddle.net/api/post/jquery/1.11.0/">
<textarea class="hidden" name="js">/*
* Compute the style of the feature. Here we want the opacity of polygons to
* be based on the offset from local noon. For example, a timezone where it is
* currently noon would have an opacity of 0.75. And a timezone where it is
* currently midnight would have an opacity of 0. This doesn&#x27;t account for
* daylight savings, so don&#x27;t use it to plan your vacation.
*/
var styleFunction = function(feature, resolution) {
var offset = 0;
var name = feature.get(&#x27;name&#x27;); // e.g. GMT -08:30
var match = name.match(/([\-+]\d{2}):(\d{2})$/);
if (match) {
var hours = parseInt(match[1], 10);
var minutes = parseInt(match[2], 10);
offset = 60 * hours + minutes;
}
var date = new Date();
var local = new Date(date.getTime() +
(date.getTimezoneOffset() + offset) * 60000);
// offset from local noon (in hours)
var delta = Math.abs(12 - local.getHours() + (local.getMinutes() / 60));
if (delta &gt; 12) {
delta = 24 - delta;
}
var opacity = 0.75 * (1 - delta / 12);
return [new ol.style.Style({
fill: new ol.style.Fill({
color: [0xff, 0xff, 0x33, opacity]
}),
stroke: new ol.style.Stroke({
color: &#x27;#ffffff&#x27;
})
})];
};
var vector = new ol.layer.Vector({
source: new ol.source.Vector({
url: &#x27;data/kml/timezones.kml&#x27;,
format: new ol.format.KML({
extractStyles: false
})
}),
style: styleFunction
});
var raster = new ol.layer.Tile({
source: new ol.source.Stamen({
layer: &#x27;toner&#x27;
})
});
var map = new ol.Map({
layers: [raster, vector],
target: &#x27;map&#x27;,
view: new ol.View({
center: [0, 0],
zoom: 2
})
});
var info = $(&#x27;#info&#x27;);
info.tooltip({
animation: false,
trigger: &#x27;manual&#x27;
});
var displayFeatureInfo = function(pixel) {
info.css({
left: pixel[0] + &#x27;px&#x27;,
top: (pixel[1] - 15) + &#x27;px&#x27;
});
var feature = map.forEachFeatureAtPixel(pixel, function(feature, layer) {
return feature;
});
if (feature) {
info.tooltip(&#x27;hide&#x27;)
.attr(&#x27;data-original-title&#x27;, feature.get(&#x27;name&#x27;))
.tooltip(&#x27;fixTitle&#x27;)
.tooltip(&#x27;show&#x27;);
} else {
info.tooltip(&#x27;hide&#x27;);
}
};
map.on(&#x27;pointermove&#x27;, function(evt) {
if (evt.dragging) {
info.tooltip(&#x27;hide&#x27;);
return;
}
displayFeatureInfo(map.getEventPixel(evt.originalEvent));
});
map.on(&#x27;click&#x27;, function(evt) {
displayFeatureInfo(evt.pixel);
});
</textarea>
<textarea class="hidden" name="css">#map {
position: relative;
}
#info {
position: absolute;
height: 1px;
width: 1px;
z-index: 100;
}
</textarea>
<textarea class="hidden" name="html">&lt;div class=&quot;row-fluid&quot;&gt;
&lt;div class=&quot;span12&quot;&gt;
&lt;div id=&quot;map&quot; class=&quot;map&quot;&gt;&lt;div id=&quot;info&quot;&gt;&lt;/div&gt;&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
</textarea>
<input type="hidden" name="wrap" value="l">
<input type="hidden" name="resources" value="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css,https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js,http://openlayers.org/en/v3.8.2/css/ol.css,http://openlayers.org/en/v3.8.2/build/ol.js">
</form>
<pre><code id="example-source" class="language-markup">&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
&lt;title&gt;Timezones in KML&lt;/title&gt;
&lt;script src="https://code.jquery.com/jquery-1.11.2.min.js"&gt;&lt;/script&gt;
&lt;link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css"&gt;
&lt;script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"&gt;&lt;/script&gt;
&lt;link rel="stylesheet" href="http://openlayers.org/en/v3.8.2/css/ol.css" type="text/css"&gt;
&lt;script src="http://openlayers.org/en/v3.8.2/build/ol.js"&gt;&lt;/script&gt;
&lt;style&gt;
#map {
position: relative;
}
#info {
position: absolute;
height: 1px;
width: 1px;
z-index: 100;
}
&lt;/style&gt;
&lt;/head&gt;
&lt;body&gt;
&lt;div class="container-fluid"&gt;
&lt;div class=&quot;row-fluid&quot;&gt;
&lt;div class=&quot;span12&quot;&gt;
&lt;div id=&quot;map&quot; class=&quot;map&quot;&gt;&lt;div id=&quot;info&quot;&gt;&lt;/div&gt;&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;script&gt;
/*
* Compute the style of the feature. Here we want the opacity of polygons to
* be based on the offset from local noon. For example, a timezone where it is
* currently noon would have an opacity of 0.75. And a timezone where it is
* currently midnight would have an opacity of 0. This doesn&#x27;t account for
* daylight savings, so don&#x27;t use it to plan your vacation.
*/
var styleFunction = function(feature, resolution) {
var offset = 0;
var name = feature.get(&#x27;name&#x27;); // e.g. GMT -08:30
var match = name.match(/([\-+]\d{2}):(\d{2})$/);
if (match) {
var hours = parseInt(match[1], 10);
var minutes = parseInt(match[2], 10);
offset = 60 * hours + minutes;
}
var date = new Date();
var local = new Date(date.getTime() +
(date.getTimezoneOffset() + offset) * 60000);
// offset from local noon (in hours)
var delta = Math.abs(12 - local.getHours() + (local.getMinutes() / 60));
if (delta &gt; 12) {
delta = 24 - delta;
}
var opacity = 0.75 * (1 - delta / 12);
return [new ol.style.Style({
fill: new ol.style.Fill({
color: [0xff, 0xff, 0x33, opacity]
}),
stroke: new ol.style.Stroke({
color: &#x27;#ffffff&#x27;
})
})];
};
var vector = new ol.layer.Vector({
source: new ol.source.Vector({
url: &#x27;data/kml/timezones.kml&#x27;,
format: new ol.format.KML({
extractStyles: false
})
}),
style: styleFunction
});
var raster = new ol.layer.Tile({
source: new ol.source.Stamen({
layer: &#x27;toner&#x27;
})
});
var map = new ol.Map({
layers: [raster, vector],
target: &#x27;map&#x27;,
view: new ol.View({
center: [0, 0],
zoom: 2
})
});
var info = $(&#x27;#info&#x27;);
info.tooltip({
animation: false,
trigger: &#x27;manual&#x27;
});
var displayFeatureInfo = function(pixel) {
info.css({
left: pixel[0] + &#x27;px&#x27;,
top: (pixel[1] - 15) + &#x27;px&#x27;
});
var feature = map.forEachFeatureAtPixel(pixel, function(feature, layer) {
return feature;
});
if (feature) {
info.tooltip(&#x27;hide&#x27;)
.attr(&#x27;data-original-title&#x27;, feature.get(&#x27;name&#x27;))
.tooltip(&#x27;fixTitle&#x27;)
.tooltip(&#x27;show&#x27;);
} else {
info.tooltip(&#x27;hide&#x27;);
}
};
map.on(&#x27;pointermove&#x27;, function(evt) {
if (evt.dragging) {
info.tooltip(&#x27;hide&#x27;);
return;
}
displayFeatureInfo(map.getEventPixel(evt.originalEvent));
});
map.on(&#x27;click&#x27;, function(evt) {
displayFeatureInfo(evt.pixel);
});
&lt;/script&gt;
&lt;/body&gt;
&lt;/html&gt;</code></pre>
</div>
</div>
<script src="https://code.jquery.com/jquery-1.11.2.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<script src="./resources/common.js"></script>
<script src="./resources/prism/prism.min.js"></script>
<script src="loader.js?id=kml-timezones"></script>
</body>
</html>