ure({
                geometry: new ol.geom["Point"](coordinates)
            });
            tFeature.set('weight', att - 5);
            return tFeature;
        }
    </script>
</head>

<body onload="init()">
    <div id="mapCon">
    </div>
    <fieldset id="layertree" style="position: absolute;width: 180px;top: 18px;left: 50px;background-color: black;opacity: 0.65;border-radius: 10px;padding: 10px 6px;">
        <ul>
            <li>
                <span>热力参数</span>
                <fieldset i