<!DOCTYPE html> <html> <head> <title>Icon Symbolizer</title> <link rel="stylesheet" href="https://openlayers.org/en/v4.0.1/css/ol.css" type="text/css"> <!-- The line below is only needed for old environments like Internet Explorer and Android 4.x --> <script src="https://cdn.polyfill.io/v2/polyfill.min.js?features=requestAnimationFrame,Element.prototype.classList,URL"></script> <script src="https://openlayers.org/en/v4.0.1/build/ol.js"></script> <script src="https://code.jquery.com/jquery-2.2.3.min.js"></script> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css"> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script> <style> #map { position: relative; } </style> </head> <body> <div id="map" class="map"><div id="popup"></div></div> <script> var iconFeature = new ol.Feature({ geometry: new ol.geom.Point([0, 0]), name: 'Null Island', population: 4000, rainfall: 500 }); var iconStyle = new ol.style.Style({ image: new ol.style.Icon(/** @type {olx.style.IconOptions} */ ({ anchor: [0.5, 46], anchorXUnits: 'fraction', anchorYUnits: 'pixels', src: 'https://openlayers.org/en/v4.0.1/examples/data/icon.png' })) }); iconFeature.setStyle(iconStyle); var vectorSource = new ol.source.Vector({ features: [iconFeature] }); var vectorLayer = new ol.layer.Vector({ source: vectorSource }); var rasterLayer = new ol.layer.Tile({ source: new ol.source.TileJSON({ url: 'https://api.tiles.mapbox.com/v3/mapbox.geography-class.json?secure', crossOrigin: '' }) }); var map = new ol.Map({ layers: [rasterLayer, vectorLayer], target: document.getElementById('map'), view: new ol.View({ center: [0, 0], zoom: 3 }) }); var element = document.getElementById('popup'); var popup = new ol.Overlay({ element: element, positioning: 'bottom-center', stopEvent: false, offset: [0, -50] }); map.addOverlay(popup); // display popup on click map.on('click', function(evt) { var feature = map.forEachFeatureAtPixel(evt.pixel, function(feature) { return feature; }); if (feature) { var coordinates = feature.getGeometry().getCoordinates(); popup.setPosition(coordinates); $(element).popover({ 'placement': 'top', 'html': true, 'content': feature.get('name') }); $(element).popover('show'); } else { $(element).popover('destroy'); } }); // change mouse cursor when over marker map.on('pointermove', function(e) { if (e.dragging) { $(element).popover('destroy'); return; } var pixel = map.getEventPixel(e.originalEvent); var hit = map.hasFeatureAtPixel(pixel); map.getTarget().style.cursor = hit ? 'pointer' : ''; }); </script> </body> </html>
OpenLayers示例代码:图标符号化器
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