leaflet读取{"y":123.2885100,"x":42.7373900,"label":8}格式的json数据绘制聚类图
时间: 2023-10-10 22:05:47 浏览: 166
clusterdemo:使用Leaflet进行聚类的演示
首先,需要使用leaflet.js库创建地图。然后,读取json数据并解析出每个数据点的坐标和标签。接下来,将数据点添加到聚类层中,并将聚类层添加到地图中。最后,使用markercluster.js库将聚类层中的数据点进行聚类并绘制聚类图。
以下是示例代码:
```html
<!DOCTYPE html>
<html>
<head>
<title>Leaflet Cluster Map</title>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/leaflet/1.3.1/leaflet.css" />
<script src="https://cdn.jsdelivr.net/leaflet/1.3.1/leaflet.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet.markercluster/1.4.1/MarkerCluster.css" />
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet.markercluster/1.4.1/MarkerCluster.Default.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet.markercluster/1.4.1/leaflet.markercluster.js"></script>
</head>
<body>
<div id="map" style="height:500px"></div>
<script>
var map = L.map('map').setView([42.7373900, 123.2885100], 13);
L.tileLayer('https://api.mapbox.com/styles/v1/{id}/tiles/{z}/{x}/{y}?access_token={accessToken}', {
attribution: 'Map data © <a href="https://www.openstreetmap.org/">OpenStreetMap</a> contributors, ' +
'<a href="https://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>, ' +
'Imagery © <a href="https://www.mapbox.com/">Mapbox</a>',
maxZoom: 18,
id: 'mapbox/streets-v11',
tileSize: 512,
zoomOffset: -1,
accessToken: 'YOUR_MAPBOX_ACCESS_TOKEN'
}).addTo(map);
var markers = L.markerClusterGroup();
var data = [{"y":123.2885100,"x":42.7373900,"label":8},{"y":123.2885100,"x":42.7373900,"label":8},{"y":123.2885100,"x":42.7373900,"label":8},{"y":123.2885100,"x":42.7373900,"label":8},{"y":123.2885100,"x":42.7373900,"label":8},{"y":123.2885100,"x":42.7373900,"label":8},{"y":123.2885100,"x":42.7373900,"label":8},{"y":123.2885100,"x":42.7373900,"label":8},{"y":123.2885100,"x":42.7373900,"label":8},{"y":123.2885100,"x":42.7373900,"label":8}];
for (var i = 0; i < data.length; i++) {
var marker = L.marker([data[i].x, data[i].y]);
marker.bindPopup("Label: " + data[i].label);
markers.addLayer(marker);
}
map.addLayer(markers);
</script>
</body>
</html>
```
在此示例代码中,我们使用了Mapbox地图,并且需要替换YOUR_MAPBOX_ACCESS_TOKEN为您自己的Mapbox访问令牌。我们还使用了一个包含10个数据点的示例数据。在实际应用中,您需要根据您的需求替换为自己的数据。
在此示例代码中,我们使用了markercluster.js库将聚类层中的数据点进行聚类并绘制聚类图。您可以通过调整聚类图的显示方式,例如修改聚类图标的颜色、大小等来满足您的需求。
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