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<!--********************************************************************
* Copyright© 2000 - 2018 SuperMap Software Co.Ltd. All rights reserved.
*********************************************************************-->
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title data-i18n="resources.title_heatMapLayer"></title>
<style type="text/css">
body {
margin: 0;
overflow: hidden;
background: #fff;
width: 100%;
height: 100%
}
#map {
position: absolute;
width: 100%;
height: 100%;
border: 1px solid #3473b7;
}
#toolbar {
position: absolute;
top: 50px;
right: 10px;
width: 300px;
text-align: center;
z-index: 100;
border-radius: 4px;
}
</style>
</head>
<body>
<div id="toolbar" class="panel panel-primary">
<div class='panel-heading'>
<h5 class='panel-title text-center' data-i18n="resources.text_fastHeatMapLayer"></h5></div>
<div class='panel-body content'>
<div class='panel'>
<div class='input-group'>
<span class='input-group-addon' data-i18n="resources.text_countsDraw"></span>
<input type='text' class='form-control' id='heatNums' value='200'/>
</div>
</div>
<div class='panel'>
<div class='input-group'>
<span class='input-group-addon' data-i18n="resources.text_radius"></span>
<input class='form-control' style='width: 50px' value='50' id='heatradius'/>
<select class='form-control' style='width:auto' id='radiusUnit'>
<option value='px'>px</option>
<option data-i18n='[value]resources.text_degree;resources.text_degree'></option>
</select>
</div>
</div>
<input type="button" class="btn btn-default" data-i18n="[value]resources.btn_startDraw"
onclick="createHeatPoints()"/>
<input type="button" class="btn btn-default" data-i18n="[value]resources.text_input_value_clear"
onclick="clearHeatPoints()"/>
</div>
</div>
<div id="map"></div>
<script type="text/javascript" include="bootstrap" src="../js/include-web.js"></script>
<script type="text/javascript" src="../../dist/mapboxgl/include-mapboxgl.js"></script>
<script type="text/javascript">
var host = window.isLocal ? window.server : "http://support.supermap.com.cn:8090";
var map, heatMapLayer,
url = host + "/iserver/services/map-world/rest/maps/World";
var attribution = "<a href='https://www.mapbox.com/about/maps/' target='_blank'>© Mapbox </a>" +
" with <span>© <a href='http://iclient.supermap.io' target='_blank'>SuperMap iClient</a> | </span>" +
" Map Data <span>© <a href='http://support.supermap.com.cn/product/iServer.aspx' target='_blank'>SuperMap iServer</a></span> ";
var map = new mapboxgl.Map({
container: 'map',
style: {
"version": 8,
"sources": {
"raster-tiles": {
"attribution": attribution,
"type": "raster",
"tiles": [url + '/zxyTileImage.png?z={z}&x={x}&y={y}'],
"tileSize": 256,
},
},
"layers": [{
"id": "simple-tiles",
"type": "raster",
"source": "raster-tiles",
"minzoom": 0,
"maxzoom": 9
}]
},
center: [0, 0],
zoom: 1
});
map.addControl(new mapboxgl.NavigationControl(), 'top-left');
map.addControl(new mapboxgl.supermap.LogoControl(), 'bottom-right');
heatMapLayer = new mapboxgl.supermap.HeatMapLayer(
"heatMap",
{
"map": map,
"id": "heatmap",
"radius": 45,
// 设置图层透明度：（参数方式）
// "opacity": 0.5,
//featureWeight指定以哪个属性值为热力权重值创建热力图：
"featureWeight": "value",
}
);
function createHeatPoints() {
clearHeatPoints();
var heatPoints = [];
var num = parseInt(document.getElementById('heatNums').value);
var radius = parseInt(document.getElementById('heatradius').value);
var unit = document.getElementById("radiusUnit").value;
//resources.text_degree 表示 id=radiusUnit 选项的第一选项值
if (resources.text_degree == unit) {
//热力半径单位使用地理单位
heatMapLayer.useGeoUnit = true;
} else {
//热力半径单位不使用用地理单位
heatMapLayer.useGeoUnit = false;
}
heatMapLayer.radius = radius;
var features = [];
for (var i = 0; i < num; i++) {
features[i] =
{
"type": "feature",
"geometry": {
"type": "Point",
"coordinates": [
Math.random() * 360 - 180,
Math.random() * 160 - 80]
},
"properties": {
"value": Math.random() * 9,
}
};
}
var heatPoints = {
"type": "FeatureCollection",
"features": features
};
heatMapLayer.addFeatures(heatPoints);
// 设置图层透明度：（函数方式）
// heatMapLayer.setOpacity(0.5);
map.addLayer(heatMapLayer);
}
function clearHeatPoints() {
if (map.getLayer("heatmap")) {
map.removeLayer("heatmap");
}
}
</script>
</body>
</html>