sql - 查找半径重叠的Geopoint

Question

如下所示，我有

3具有一定半径的GeoPoint A，B，C
1个GeoPoint K，



我想找到半径重叠为K Geo的所有GeoPoint

因此答案应该是B，C。

那么如何实现呢？

目前，我正在使用Mongodb。但是任何其他数据库也可以。

Answer 1

这个问题是基于观点的，就像“任何其他数据库都可以”这样的陈述一样。
但是，记录下来，在ES中实现的方式如下:

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":{

    }
  }
]