Question

我查看了Google Maps v3 Utility Libraries，找到了MarkerClusterer和MarkerManager个库。但是，我正在使用多个google.maps.Data图层来阅读和编写数据。

有没有办法为这些图层上的POINT功能执行群集（可以从公共源和应用程序数据动态加载），而无需将数据转换为标记？

我们可以在使用AJAX请求加载数据的同时在服务器端进行标记聚类吗？

Answer 1

这个问题相当陈旧，但我遇到了完全相同的问题，我花了很长时间才找到解决方案。

您可以使用我刚刚增强的https://github.com/Connum/data-layer-clusterer，使其适用于LineString和Polygon功能。

这是一个有效的例子：

＆＃13;

"myAttachmentName.docx"

＆＃13;

window.initMap = function() {
  map = new google.maps.Map(document.getElementById('map'), {
  center: {lat: 49.0192242, lng: 8.4051448},
  zoom: 13,
  scaleControl: false,
  streetViewControl: false,
  rotateControl: false,
  });

  var s = document.createElement( 'script' );
  s.setAttribute( 'src', 'https://cdn.rawgit.com/Connum/data-layer-clusterer/master/src/datalayerclusterer.js' );
  s.async = false;
  document.head.appendChild( s );
  s.onload = function() {
var cluster = new DataLayerClusterer({
"map": map
  });

  cluster.addGeoJson({
"type": "FeatureCollection",
"features": [
{
  "type": "Feature",
  "geometry": {
"type": "Point",
"coordinates": [
  8.404455900017638,
  49.013533476349956
]
  }
},
{
  "type": "Feature",
  "geometry": {
"type": "Point",
"coordinates": [
  8.401044130150694,
  49.01396272155595
]
  }
},
{
  "type": "Feature",
  "geometry": {
"type": "Point",
"coordinates": [
  8.400035619561095,
  49.01183053267183
]
  }
},
{
  "type": "Feature",
  "geometry": {
"type": "Point",
"coordinates": [
  8.40565752965631,
  49.01064125233564
]
  }
},
{
  "type": "Feature",
  "geometry": {
"type": "Point",
"coordinates": [
  8.402932405297179,
  49.01073977367939
]
  }
},
{
  "type": "Feature",
  "geometry": {
"type": "Point",
"coordinates": [
  8.403726339165587,
  49.01247793961102
]
  }
},
{
  "type": "Feature",
  "geometry": {
"type": "Point",
"coordinates": [
  8.404820680443663,
  49.01244275466763
]
  }
},
{
  "type": "Feature",
  "geometry": {
"type": "Point",
"coordinates": [
  8.404724120919127,
  49.01104237373055
]
  }
},
{
  "type": "Feature",
  "geometry": {
"type": "Point",
"coordinates": [
  8.403586864296813,
  49.011105708392215
]
  }
},
{
  "type": "Feature",
  "geometry": {
"type": "Point",
"coordinates": [
  8.409692287095822,
  49.012400532702735
]
  }
},
{
  "type": "Feature",
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"type": "Point",
"coordinates": [
  8.411816596635617,
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]
  }
},
{
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"type": "Point",
"coordinates": [
  8.409027099260129,
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]
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},
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"type": "Point",
"coordinates": [
  8.398555755265988,
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]
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"type": "Point",
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]
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]
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基于数据层的集群解决方案

1 个答案: