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Add synthetic-data example

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Éric Lemoine
2013-10-21 13:48:09 +02:00
committed by Tom Payne
parent 0c9f7eb616
commit 0d84befe83
2 changed files with 130 additions and 0 deletions
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examples/synthetic-data.html
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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="../css/ol.css" type="text/css">
<link rel="stylesheet" href="../resources/bootstrap/css/bootstrap.min.css" type="text/css">
<link rel="stylesheet" href="../resources/layout.css" type="text/css">
<link rel="stylesheet" href="../resources/bootstrap/css/bootstrap-responsive.min.css" type="text/css">
<title>Synthetic data example</title>
</head>
<body>
<div class="navbar navbar-inverse navbar-fixed-top">
<div class="navbar-inner">
<div class="container">
<a class="brand" href="./"><img src="../resources/logo.png"> OpenLayers 3 Examples</a>
</div>
</div>
</div>
<div class="container-fluid">
<div class="row-fluid">
<div class="span12">
<div id="map" class="map"></div>
</div>
</div>
<div class="row-fluid">
<div class="span12">
<h4 id="title">Synthetic data example</h4>
<p id="shortdesc">Synthetic data example.</p>
<div id="docs">
<p>See the <a href="synthetic-data.js" target="_blank">synthetic-data.js source</a> to see how this is done.</p>
</div>
<div id="tags">vector</div>
</div>
</div>
</div>
<script src="loader.js?id=synthetic-data" type="text/javascript"></script>
<script src="../resources/example-behaviour.js" type="text/javascript"></script>
</body>
</html>
examples/synthetic-data.js
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goog.require('ol.Map');
goog.require('ol.Overlay');
goog.require('ol.RendererHint');
goog.require('ol.View2D');
goog.require('ol.expr');
goog.require('ol.layer.Tile');
goog.require('ol.layer.Vector');
goog.require('ol.parser.GeoJSON');
goog.require('ol.proj');
goog.require('ol.source.MapQuestOpenAerial');
goog.require('ol.source.Vector');
goog.require('ol.style.Fill');
goog.require('ol.style.Rule');
goog.require('ol.style.Shape');
goog.require('ol.style.ShapeType');
goog.require('ol.style.Stroke');
goog.require('ol.style.Style');
var raster = new ol.layer.Tile({
source: new ol.source.MapQuestOpenAerial()
});
// build up some GeoJSON features
var count = 20000;
var features = new Array(count);
var e = 18000000;
for (var i = 0; i < count; ++i) {
features[i] = {
type: 'Feature',
properties: {
i: i,
size: i % 2 ? 10 : 20
},
geometry: {
type: 'Point',
coordinates: [
2 * e * Math.random() - e, 2 * e * Math.random() - e
]
}
};
}
var vector = new ol.layer.Vector({
source: new ol.source.Vector({
projection: ol.proj.get('EPSG:3857'),
parser: new ol.parser.GeoJSON(),
data: {
type: 'FeatureCollection',
features: features
}
}),
style: new ol.style.Style({rules: [
new ol.style.Rule({
symbolizers: [
new ol.style.Shape({
type: ol.style.ShapeType.CIRCLE,
size: ol.expr.parse('size'),
stroke: new ol.style.Stroke({color: '#666666'}),
fill: new ol.style.Fill({color: '#bada55'})
})
]
})
]})
});
var popup = new ol.Overlay({
element: document.getElementById('popup')
});
var map = new ol.Map({
layers: [vector],
renderer: ol.RendererHint.CANVAS,
target: 'map',
view: new ol.View2D({
center: [0, 0],
zoom: 2
}),
overlays: [popup]
});