本文實例為大家分享了openlayers4實現點的擴散效果，供大家參考，具體內容如下
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <link rel="stylesheet" rel="external nofollow" 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/v4.6.4/build/ol.js"></script> <style> .css_animation{ height:100px; width:100px; border-radius: 50%; background: rgba(255, 0, 0, 0.9); transform: scale(0); animation: myfirst 3s; animation-iteration-count: infinite; } @keyframes myfirst{ to{ transform: scale(2); background: rgba(0, 0, 0, 0); } } </style> </head> <body> <div id="map" style="width: 100%;height: 100%"></div> <script> var map = new ol.Map({ layers:[new ol.layer.Tile({ source:new ol.source.OSM() })], target:'map', view:new ol.View({ center: [12950000, 4860000], zoom:7 }) }); var point_div = document.createElement('div'); point_div.className = 'css_animation'; point_overlay = new ol.Overlay({ element:point_div, positioning:'center-center' }); map.addOverlay(point_overlay); point_overlay.setPosition([12950000, 4860000]); </script> </body> </html> 以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持武林網。
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