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GeezerVison is showing github.com — iClient-JavaScript/examples/mapboxgl/earthquakeHeatMap.html at master · SuperMap/iClient-JavaScript

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<!--********************************************************************
* 该示例需要引入
* PapaParse (https://github.com/mholt/PapaParse)
* mapbox-gl-enhance (https://iclient.supermap.io/web/libs/mapbox-gl-js-enhance/1.12.1-13/mapbox-gl-enhance.js)
*********************************************************************-->
<!DOCTYPE html>
<html>
<head>
<meta charset='utf-8' />
<title data-i18n="resources.title_ChinaEarthquakeHeatWGS84"></title>
<meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
<script type="text/javascript" include="jquery,papaparse" src="../js/include-web.js"></script>
<style>
body {
margin: 0;
padding: 0;
}
#map {
position: absolute;
top: 0;
bottom: 0;
width: 100%;
}
</style>
</head>
<body>
<div id='map'></div>
<script type="text/javascript" include='mapbox-gl-enhance' src="../../dist/mapboxgl/include-mapboxgl.js"></script>
<script>
var host = window.isLocal ? window.server : "https://iserver.supermap.io";
var map = new mapboxgl.Map({
container: 'map',
style: {
"version": 8,
"sources": {
"raster-tiles": {
"type": "raster",
"tiles": [host + '/iserver/services/map-world/rest/maps/World'],
"rasterSource":"iserver",
"tileSize": 256
}
},
"layers": [{
"id": "simple-tiles",
"type": "raster",
"source": "raster-tiles",
"minzoom": 0,
"maxzoom": 22
}]
},
crs: mapboxgl.CRS.EPSG4326,
center: [112, 37.94],
zoom: 3
});
map.on('load', function () {
$.get("../data/chinaEarthquake.csv", function (response) {
var dataObj = Papa.parse(response, {
skipEmptyLines: true,
header: true
});
var data = dataObj.data;
var geojson = {
"type": "FeatureCollection",
"features": []
};
for (var i = 0; i < data.length; i++) {
var item = data[i];
var date = new Date(item.date);
var year = date.getFullYear();
//2w+地震数据
if (year > 2000 && year < 2015) {
var feature = {
"type": "feature",
"geometry": {
"type": "Point",
"coordinates": []
},
"properties": {
"value": parseFloat(item.level)
}
};
feature.geometry.coordinates = [parseFloat(item.X), parseFloat(item.Y)];
geojson.features.push(feature);
}
}
map.addSource('earthquakes', {
"type": "geojson",
"data": geojson
});
map.addLayer({
"id": "earthquakes-heat",
"type": "heatmap",
"source": "earthquakes",
"maxzoom": 9,
"paint": {
"heatmap-weight": [
"interpolate",
["linear"],
["get", "level"],
0, 0,
6, 1
],
"heatmap-intensity": [
"interpolate",
["linear"],
["zoom"],
0, 1,
9, 3
],
"heatmap-color": [
"interpolate",
["linear"],
["heatmap-density"],
0, "rgba(33,102,172,0)",
0.2, "rgb(103,169,207)",
0.4, "rgb(209,229,240)",
0.6, "rgb(253,219,199)",
0.8, "rgb(239,138,98)",
1, "rgb(178,24,43)"
],
"heatmap-radius": [
"interpolate",
["linear"],
["zoom"],
0, 2,
9, 20
],
"heatmap-opacity": [
"interpolate",
["linear"],
["zoom"],
7, 1,
9, 0
],
}
});
map.addLayer({
"id": "earthquakes-point",
"type": "circle",
"source": "earthquakes",
"minzoom": 7,
"paint": {
"circle-radius": [
"interpolate",
["linear"],
["zoom"],
7, [
"interpolate",
["linear"],
["get", "level"],
1, 1,
6, 4
],
16, [
"interpolate",
["linear"],
["get", "level"],
1, 5,
6, 50
]
],
"circle-color": [
"interpolate",
["linear"],
["get", "level"],
1, "rgba(33,102,172,0)",
2, "rgb(103,169,207)",
3, "rgb(209,229,240)",
4, "rgb(253,219,199)",
5, "rgb(239,138,98)",
6, "rgb(178,24,43)"
],
"circle-stroke-color": "white",
"circle-stroke-width": 1,
"circle-opacity": [
"interpolate",
["linear"],
["zoom"],
7, 0,
8, 1
]
}
});
});
});
</script>
</body>
</html>
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