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Add hue/saturation example

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Tom Payne
2013-03-07 01:42:14 +01:00
parent f942333f48
commit f0466ef9c7
2 changed files with 109 additions and 0 deletions
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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="bootstrap/css/bootstrap.min.css" type="text/css">
<link rel="stylesheet" href="examples.css" type="text/css">
<link rel="stylesheet" href="bootstrap/css/bootstrap-responsive.min.css" type="text/css">
<title>Hue/saturation example</title>
</head>
<body>
<div class="navbar navbar-inverse navbar-fixed-top">
<div class="navbar-inner">
<div class="container">
<a class="brand" href="example-list.html">OpenLayers 3 Examples</a>
<ul class="nav pull-right">
<li><a href="https://github.com/openlayers/ol3"><i class="icon-github"></i></a></li>
<li><a href="https://twitter.com/openlayers"><i class="icon-twitter"></i></a></li>
</ul>
</div>
</div>
</div>
<div class="container-fluid">
<div class="row-fluid">
<div class="span12">
<div id="map" class="map"></div>
<div class="btn-group">
<button id="increase-hue"><i class="icon-plus"></i></button>
<button id="reset-hue">Hue</button>
<button id="decrease-hue"><i class="icon-minus"></i></button>
</div>
<div class="btn-group">
<button id="increase-saturation"><i class="icon-plus"></i></button>
<button id="reset-saturation">Saturation</button>
<button id="decrease-saturation"><i class="icon-minus"></i></button>
</div>
</div>
</div>
<div class="row-fluid">
<div class="span4">
<h4 id="title">Hue/saturation example</h4>
<p id="shortdesc">Example of hue/saturation control on the client (WebGL only).</p>
<div id="docs">
<p>See the <a href="hue-saturation.js" target="_blank">hue-saturation.js source</a> to see how this is done.</p>
</div>
<div id="tags">hue, saturation, webgl</div>
</div>
</div>
</div>
<script src="loader.js?id=hue-saturation" type="text/javascript"></script>
</body>
</html>

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goog.require('ol.Coordinate');
goog.require('ol.Map');
goog.require('ol.RendererHint');
goog.require('ol.View2D');
goog.require('ol.layer.TileLayer');
goog.require('ol.source.MapQuestOpenAerial');
var layer = new ol.layer.TileLayer({
source: new ol.source.MapQuestOpenAerial()
});
var map = new ol.Map({
layers: [layer],
renderer: ol.RendererHint.WEBGL,
target: 'map',
view: new ol.View2D({
center: new ol.Coordinate(0, 0),
zoom: 2
})
});
var increaseHue = document.getElementById('increase-hue');
increaseHue.addEventListener('click', function() {
layer.setHue(layer.getHue() + 0.25);
}, false);
var resetHue = document.getElementById('reset-hue');
resetHue.addEventListener('click', function() {
layer.setHue(0);
}, false);
var decreaseHue = document.getElementById('decrease-hue');
decreaseHue.addEventListener('click', function() {
layer.setHue(layer.getHue() - 0.25);
}, false);
var increaseSaturation = document.getElementById('increase-saturation');
increaseSaturation.addEventListener('click', function() {
layer.setSaturation(layer.getSaturation() + 0.25);
}, false);
var resetSaturation = document.getElementById('reset-saturation');
resetSaturation.addEventListener('click', function() {
layer.setSaturation(1);
}, false);
var decreaseSaturation = document.getElementById('decrease-saturation');
decreaseSaturation.addEventListener('click', function() {
layer.setSaturation(layer.getSaturation() - 0.25);
}, false);