<!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>All Overlays Example</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({ div: "map", allOverlays: true, maxExtent: new OpenLayers.Bounds( 1549471.9221, 6403610.94, 1550001.32545, 6404015.8 ) }); // give the features some style var styles = new OpenLayers.StyleMap({ "default": { strokeWidth: 2 }, "select": { strokeColor: "#0099cc", strokeWidth: 4 } }); // add rules from the above lookup table styles.addUniqueValueRules("default", "RP_TYPE", { 10: {strokeColor: "#000000", strokeWidth: 2}, 12: {strokeColor: "#222222", strokeWidth: 2}, 14: {strokeColor: "#444444", strokeWidth: 2}, 16: {strokeColor: "#666666", strokeWidth: 2}, 18: {strokeColor: "#888888", strokeWidth: 2}, 19: {strokeColor: "#666666", strokeWidth: 1} }); var vectors = new OpenLayers.Layer.Vector("Lines", { strategies: [new OpenLayers.Strategy.Fixed()], protocol: new OpenLayers.Protocol.HTTP({ url: "data/roads.json", format: new OpenLayers.Format.GeoJSON() }), styleMap: styles }); map.addLayer(vectors); map.addControl(new OpenLayers.Control.LayerSwitcher()); map.zoomToMaxExtent(); } </script> </head> <body onload="init()"> <h1 id="title">OpenLayers Overlays Only Example</h1> <div id="tags"> overlay, baselayer, light </div> <p id="shortdesc"> Demonstrates a map with overlays only. </p> <div id="map" class="smallmap"></div> <div id="docs"> To create a map that allows any draw order with all layer types and lets you set the visibility of any layer independently, set the allOverlays property on the map to true. </div> </body> </html>