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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>OpenLayers StyleMap</title>
- <link rel="stylesheet" href="../theme/default/style.css" type="text/css">
- <link rel="stylesheet" href="style.css" type="text/css">
- <script src="../lib/OpenLayers.js"></script>
- <script type="text/javascript">
- var map;
-
- function init() {
- map = new OpenLayers.Map('map');
- var wms = new OpenLayers.Layer.WMS(
- "OpenLayers WMS",
- "http://vmap0.tiles.osgeo.org/wms/vmap0",
- {layers: 'basic'}
- );
-
- // Create 50 random features, and give them a "type" attribute that
- // will be used to style them by size.
- var features = new Array(50);
- for (var i=0; i<features.length; i++) {
- features[i] = new OpenLayers.Feature.Vector(
- new OpenLayers.Geometry.Point(
- (360 * Math.random()) - 180, (180 * Math.random()) - 90
- ), {
- type: 5 + parseInt(5 * Math.random())
- }
- );
- }
-
- // Create a styleMap to style your features for two different
- // render intents. The style for the 'default' render intent will
- // be applied when the feature is first drawn. The style for the
- // 'select' render intent will be applied when the feature is
- // selected.
- var myStyles = new OpenLayers.StyleMap({
- "default": new OpenLayers.Style({
- pointRadius: "${type}", // sized according to type attribute
- fillColor: "#ffcc66",
- strokeColor: "#ff9933",
- strokeWidth: 2,
- graphicZIndex: 1
- }),
- "select": new OpenLayers.Style({
- fillColor: "#66ccff",
- strokeColor: "#3399ff",
- graphicZIndex: 2
- })
- });
-
- // Create a vector layer and give it your style map.
- var points = new OpenLayers.Layer.Vector("Points", {
- styleMap: myStyles,
- rendererOptions: {zIndexing: true}
- });
- points.addFeatures(features);
- map.addLayers([wms, points]);
-
- // Create a select feature control and add it to the map.
- var select = new OpenLayers.Control.SelectFeature(points, {hover: true});
- map.addControl(select);
- select.activate();
-
- map.setCenter(new OpenLayers.LonLat(0, 0), 1);
- }
- </script>
- </head>
- <body onload="init()">
- <h1 id="title">StyleMap Example</h1>
-
- <div id="tags">
- vector, feature, stylemap, light
- </div>
-
- <p id="shortdesc">
- Shows how to use a StyleMap to style features with rule based styling.
- A style map references one or more OpenLayers.Style objects. These
- OpenLayers.Style objects are collections of OpenLayers.Rule objects
- that determine how features are styled. An OpenLayers.Rule object
- combines an OpenLayers.Filter object with a symbolizer. A filter is used
- to determine whether a rule applies for a given feature, and a symbolizer
- is used to draw the feature if the rule applies.
- </p>
-
- <div id="map" class="smallmap"></div>
-
- <div id="docs">
- <p>A style map is used with vector layers to define styles for various
- rendering intents. The style map used here has styles defined for the
- "default" and "select" rendering intents. This map also has an active
- select feature control. When you hover over features, they are selected
- and drawn with the style corresponding the the "select" render intent.
- </p>
- </div>
- </body>
-</html>