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Add regular shape example

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tsauerwein
2014-11-13 11:52:35 +01:00
parent e9e76954b2
commit f07e59d63f
2 changed files with 141 additions and 0 deletions
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examples/symbol-stars.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>Regular shape symbols</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">Regular shape symbols</h4>
<p id="shortdesc">Drawing stars with regular shape symbols.</p>
<div id="docs">
<p>See the <a href="symbol-stars.js" target="_blank">symbol-stars.js source</a> to see how this is done.</p>
</div>
<div id="tags">symbol, regular, star, vector, point</div>
</div>
</div>
</div>
<script src="../resources/jquery.min.js" type="text/javascript"></script>
<script src="../resources/bootstrap/js/bootstrap.min.js" type="text/javascript"></script>
<script src="../resources/example-behaviour.js" type="text/javascript"></script>
<script src="loader.js?id=symbol-stars" type="text/javascript"></script>
</body>
</html>
examples/symbol-stars.js
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goog.require('ol.Feature');
goog.require('ol.Map');
goog.require('ol.View');
goog.require('ol.geom.Point');
goog.require('ol.layer.Vector');
goog.require('ol.source.Vector');
goog.require('ol.style.Fill');
goog.require('ol.style.RegularShape');
goog.require('ol.style.Stroke');
goog.require('ol.style.Style');
var symbolInfo = [{
opacity: 1.0,
scale: 1.0,
fillColor: 'rgba(255, 153, 0, 0.4)',
strokeColor: 'rgba(255, 204, 0, 0.2)'
}, {
opacity: 0.75,
scale: 1.25,
fillColor: 'rgba(70, 80, 224, 0.4)',
strokeColor: 'rgba(12, 21, 138, 0.2)'
}, {
opacity: 0.5,
scale: 1.5,
fillColor: 'rgba(66, 150, 79, 0.4)',
strokeColor: 'rgba(20, 99, 32, 0.2)'
}, {
opacity: 1.0,
scale: 1.0,
fillColor: 'rgba(176, 61, 35, 0.4)',
strokeColor: 'rgba(145, 43, 20, 0.2)'
}];
var radiuses = [3, 6, 9, 15, 19, 25];
var symbolCount = symbolInfo.length * radiuses.length;
var symbols = [];
var i, j;
for (i = 0; i < symbolInfo.length; ++i) {
var info = symbolInfo[i];
for (j = 0; j < radiuses.length; ++j) {
symbols.push(new ol.style.RegularShape({
points: 8,
opacity: info.opacity,
scale: info.scale,
radius: radiuses[j],
radius2: radiuses[j] * 0.7,
angle: 1.4,
fill: new ol.style.Fill({
color: info.fillColor
}),
stroke: new ol.style.Stroke({
color: info.strokeColor,
width: 1
})
}));
}
}
var featureCount = 5000;
var features = new Array(featureCount);
var feature, geometry;
var e = 25000000;
for (i = 0; i < featureCount; ++i) {
geometry = new ol.geom.Point(
[2 * e * Math.random() - e, 2 * e * Math.random() - e]);
feature = new ol.Feature(geometry);
feature.setStyle(
new ol.style.Style({
image: symbols[i % (symbolCount - 1)]
})
);
features[i] = feature;
}
var vectorSource = new ol.source.Vector({
features: features
});
var vector = new ol.layer.Vector({
source: vectorSource
});
var map = new ol.Map({
layers: [vector],
target: document.getElementById('map'),
view: new ol.View({
center: [0, 0],
zoom: 3
})
});