acb9f950df
Previously examples would either use the now deprecated `window.$` or the non-API-method `OpenLayers.Util.getElement`. This was well caught by @probins and @elemoine.
171 lines
6.7 KiB
HTML
171 lines
6.7 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
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<meta name="apple-mobile-web-app-capable" content="yes">
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<title>SelectFeature Control on Layer.Vector</title>
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<link rel="stylesheet" href="../theme/default/style.css" type="text/css">
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<link rel="stylesheet" href="style.css" type="text/css">
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<style type="text/css">
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#controlToggle li {
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list-style: none;
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}
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</style>
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<script src="../lib/OpenLayers.js"></script>
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<script type="text/javascript">
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var map, drawControls;
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OpenLayers.Feature.Vector.style['default']['strokeWidth'] = '2';
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function init(){
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map = new OpenLayers.Map('map');
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var wmsLayer = new OpenLayers.Layer.WMS(
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"OpenLayers WMS",
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"http://vmap0.tiles.osgeo.org/wms/vmap0",
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{layers: 'basic'}
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);
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// allow testing of specific renderers via "?renderer=Canvas", etc
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var renderer = OpenLayers.Util.getParameters(window.location.href).renderer;
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renderer = (renderer) ? [renderer] : OpenLayers.Layer.Vector.prototype.renderers;
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var vectors = new OpenLayers.Layer.Vector("Vector Layer", {
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renderers: renderer
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});
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vectors.events.on({
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'featureselected': function(feature) {
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document.getElementById('counter').innerHTML = this.selectedFeatures.length;
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},
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'featureunselected': function(feature) {
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document.getElementById('counter').innerHTML = this.selectedFeatures.length;
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}
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});
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map.addLayers([wmsLayer, vectors]);
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map.addControl(new OpenLayers.Control.LayerSwitcher());
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drawControls = {
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point: new OpenLayers.Control.DrawFeature(
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vectors, OpenLayers.Handler.Point
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),
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line: new OpenLayers.Control.DrawFeature(
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vectors, OpenLayers.Handler.Path
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),
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polygon: new OpenLayers.Control.DrawFeature(
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vectors, OpenLayers.Handler.Polygon
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),
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select: new OpenLayers.Control.SelectFeature(
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vectors,
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{
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clickout: false, toggle: false,
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multiple: false, hover: false,
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toggleKey: "ctrlKey", // ctrl key removes from selection
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multipleKey: "shiftKey", // shift key adds to selection
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box: true
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}
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),
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selecthover: new OpenLayers.Control.SelectFeature(
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vectors,
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{
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multiple: false, hover: true,
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toggleKey: "ctrlKey", // ctrl key removes from selection
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multipleKey: "shiftKey" // shift key adds to selection
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}
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)
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};
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for(var key in drawControls) {
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map.addControl(drawControls[key]);
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}
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map.setCenter(new OpenLayers.LonLat(0, 0), 3);
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}
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function toggleControl(element) {
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for(key in drawControls) {
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var control = drawControls[key];
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if(element.value == key && element.checked) {
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control.activate();
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} else {
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control.deactivate();
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}
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}
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}
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function update() {
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var clickout = document.getElementById("clickout").checked;
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if(clickout != drawControls.select.clickout) {
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drawControls.select.clickout = clickout;
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}
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var box = document.getElementById("box").checked;
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if(box != drawControls.select.box) {
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drawControls.select.box = box;
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if(drawControls.select.active) {
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drawControls.select.deactivate();
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drawControls.select.activate();
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}
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}
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}
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</script>
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</head>
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<body onload="init()">
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<h1 id="title">OpenLayers Select Feature Example</h1>
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<div id="tags">
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vector, feature, selecting, selection, advanced
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</div>
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<p id="shortdesc">
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Select a feature on hover or click with the Control.SelectFeature on a
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vector layer.
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</p>
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<div id="map" class="smallmap"></div>
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<ul id="controlToggle">
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<li>
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<input type="radio" name="type" value="none" id="noneToggle"
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onclick="toggleControl(this);" checked="checked" />
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<label for="noneToggle">navigate</label>
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</li>
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<li>
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<input type="radio" name="type" value="point" id="pointToggle"
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onclick="toggleControl(this);" />
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<label for="pointToggle">draw point</label>
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</li>
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<li>
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<input type="radio" name="type" value="line" id="lineToggle"
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onclick="toggleControl(this);" />
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<label for="lineToggle">draw line</label>
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</li>
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<li>
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<input type="radio" name="type" value="polygon" id="polygonToggle"
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onclick="toggleControl(this);" />
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<label for="polygonToggle">draw polygon</label>
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</li>
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<li>
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<input type="radio" name="type" value="selecthover" id="selecthoverToggle"
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onclick="toggleControl(this);" />
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<label for="selecthoverToggle">Select features on hover</label>
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</li>
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<li>
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<input type="radio" name="type" value="select" id="selectToggle"
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onclick="toggleControl(this);" />
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<label for="selectToggle">select feature (<span id="counter">0</span> features selected)</label>
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<ul>
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<li>
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<input id="box" type="checkbox" checked="checked"
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name="box" onchange="update()" />
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<label for="box">select features in a box</label>
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</li>
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<li>
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<input id="clickout" type="checkbox"
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name="clickout" onchange="update()" />
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<label for="clickout">click out to unselect features</label>
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</li>
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</ul>
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</li>
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</ul>
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<p>Use the shift key to select multiple features. Use the ctrl key to
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toggle selection on features one at a time. Note: the "clickout" option has no
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effect when "hover" is selected.</p>
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</body>
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</html>
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