1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Resize a Marker</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, layer; var size, icon; function init(){ map = new OpenLayers.Map('map'); layer = new OpenLayers.Layer.WMS( "OpenLayers WMS", "http://labs.metacarta.com/wms/vmap0", {layers: 'basic'} ); map.addLayer(layer); var markers = new OpenLayers.Layer.Markers( "Markers" ); map.addLayer(markers); size = new OpenLayers.Size(50,50); calculateOffset = function(size) { return new OpenLayers.Pixel(-(size.w/2), -size.h); }; icon = new OpenLayers.Icon( 'http://boston.openguides.org/markers/AQUA.png', size, null, calculateOffset); markers.addMarker( new OpenLayers.Marker(new OpenLayers.LonLat(-71,40), icon)); map.addControl(new OpenLayers.Control.LayerSwitcher()); map.zoomToMaxExtent(); } function resize() { size = new OpenLayers.Size(size.w + 10, size.h + 10); icon.setSize(size); } </script> </head> <body onload="init()"> <div id="title">Resize a Marker</div> <div id="tags"></div> <div id="shortdesc">Dynamically resize a marker</div> <div id="map" class="smallmap"></div> <div id="docs"> This example shows how to create a OpenLayers.Layer.Markers layer, add an icon, put it into a marker, and add the marker to the layer. Once the marker has been added it is possible to use setSize() on the icon in order to resize the marker. </div> <div style="background-color:purple" onclick="resize()"> click to resize marker</div> </body> </html> |