寻找具有半径的具有重叠地质点的地质点

Question

如你所见，我有

具有一定半径的3 GeoPoint A，B，C

1 GeoPoint K，

​

​

我想找到所有半径重叠的GeoPoint

所以答案应该是B，C。

那么，如何才能做到这一点呢？

目前我正在使用Mongodb。但是任何其他的数据库也是可以的。

Answer 1

这个问题是基于意见的，正如“任何其他数据库都没问题”这句话一样。但要记录在案，在ES中这样做的方法如下：

PUT circles
{
  "mappings": {
    "properties": {
      "location": {
        "type": "geo_shape",
        "strategy": "recursive"
      }
    }
  }
}

PUT circles/_doc/A
{
  "location": {
    "type": "circle",
    "coordinates": [
      16.34817123413086,
      48.20968893477074
    ],
    "radius": "2km"
  }
}

PUT circles/_doc/B
{
  "location": {
    "type": "circle",
    "coordinates": [
      16.374435424804688,
      48.20122291334052
    ],
    "radius": "3km"
  }
}

PUT circles/_doc/C
{
  "location": {
    "type": "circle",
    "coordinates": [
      16.386451721191406,
      48.21586595914765
    ],
    "radius": "4km"
  }
}

GET circles/_search
{
  "query": {
    "geo_shape": {
      "location": {
        "shape": {
          "type": "point",
          "coordinates": [
            16.386795043945312,
            48.208773756674425
          ]
        },
        "relation": "intersects"
      }
    }
  }
}

屈服

[
  {
    "_index":"circles",
    "_type":"_doc",
    "_id":"B",
    "_score":1.0,
    "_source":{

    }
  },
  {
    "_index":"circles",
    "_type":"_doc",
    "_id":"C",
    "_score":1.0,
    "_source":{

    }
  }
]