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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>Extended clustering example</title>
- <link rel="stylesheet" href="../theme/default/style.css" type="text/css">
- <link rel="stylesheet" href="style.css" type="text/css">
- <style type="text/css">
- label {
- cursor: pointer
- }
-
- #wrap {
- width: 925px;
- margin: 10px;
- }
-
- #strategy-chooser, #generalinfo, #info {
- width: 400px;
- padding: 0;
- float: right;
- clear: right;
- margin-bottom: 4px;
- }
-
- #map {
- float: left;
- }
- </style>
- </head>
- <body>
- <h1 id="title">Extended clustering</h1>
- <div id="tags">
- cluster, advanced
- </div>
- <p id="shortdesc">
- Shows the usage of custom classes for a fine grained control about
- the clustering behaviour.
- </p>
- <div id="wrap">
- <div id="map" class="smallmap">
- </div>
- <div id="strategy-chooser">
- <p>
- Select the desired clustering strategy:
- </p>
- <label>
- <input type="radio" name="strategy" value="none" id="no-strategy" checked="checked">No strategy
- </label>
- <br>
- <label>
- <input type="radio" name="strategy" value="cluster" id="cluster-strategy">Simple cluster-strategy
- </label>
- <br>
- <label>
- <input type="radio" name="strategy" value="attribute-cluster" id="attributive-cluster-strategy">Attributive cluster-strategy
- </label>
- <br>
- <label>
- <input type="radio" name="strategy" value="rule-cluster" id="rulebased-cluster-strategy">Rulebased cluster-strategy
- </label>
- </div>
- <div id="generalinfo">
- </div>
- <div id="info">
- </div>
- </div>
- <div id="docs" style="clear: both; padding-top: 10px">
- <p>
- The vectorlayer in this example contains random data with an
- attribute "clazz" that can take the values 1, 2, 3 and 4. The
- features with clazz = 4 are considered more important than the
- others.
- </p>
- <p>
- The radiobuttons on the right of the map control the
- cluster strategy to be applied to the features.
- </p>
- <ul>
- <li>
- <strong>No strategy</strong>
- means that all features are
- rendered, no clustering shall be applied
- </li>
- <li>
- <strong>Simple cluster-strategy</strong>
- applies the cluster
- strategy with default options to the layer. You should notice
- that many of the important features with clazz = 4 are getting
- lost, since clustering happens regardless of feature attributes
- </li>
- <li>
- <strong>Attributive cluster-strategy</strong>
- uses a
- customized cluster strategy. This strategy is configured to
- cluster features of the same clazz only. You should be able to see all
- red points (clazz = 4) even though the data is clustered. A
- cluster now contains only features of the same clazz.
- </li>
- <li>
- <strong>Rulebased cluster-strategy</strong>
- uses another
- customized cluster strategy. This strategy is configured to
- cluster features that follow a certain rule only. In this case only
- features with a clazz different from 4 are considered as
- candidates for clustering. That means that usually you have fewer
- clusters on the map, yet all with clazz = 4 are easily
- distinguishable
- </li>
- </ul>
- <p>
- Hover over the features to get a short infomation about the
- feature or cluster of features.
- </p>
- </div>
- <p>
- View the <a href="strategy-cluster-extended.js" target="_blank">strategy-cluster-extended.js</a>
- source to see how this is done.
- </p>
- <script type="text/javascript" src="../lib/OpenLayers.js"></script>
- <script type="text/javascript" src="strategy-cluster-extended.js"></script>
- </body>
-</html>