mongoDB 地理空间查询 $geoWithin 出现错误 'Loop is not closed'

Question

我是 mongodb 地理空间查询的新手，我尝试在具有如下代码的多边形内搜索点:

db.properties.find({
  location:{
    $geoWithin : {
      $geometry : {
        type:"Polygon",
        coordinates: [[
            [104.9172382, 11.57934524],
            [104.9146632, 11.5724502],
            [104.92753788, 11.57976566]
        ]]
        } 
      } 
    }
  })

我的数据表如下所示:

我想得到所有点都在多边形内的结果。但我真的不知道

这个错误总是弹出

|____/ Mongo Server error (MongoQueryException): Query failed with error code 2 and error message 'Loop is not closed: [ [ 104.9172382, 11.57934524 ], [ 104.9146632, 11.5724502 ], [ 104.92753788, 11.57976566 ] ]' on server

感谢任何想法!

Answer 1

我找到了答案，我们需要开始坐标和结束坐标是相同的值。

db.properties.find({
  location:{
    $geoWithin : {
      $geometry : {
        type:"Polygon",
        coordinates:[
            [
                [ 104.9212999921292 , 11.575955591122819 ] , // start loop
                [ 104.92129194550216 , 11.575198826419006 ] ,
                [ 104.92298978380859 , 11.575238241297862 ] ,
                [ 104.92291736416519 , 11.576023910057827 ] ,
                [ 104.9212999921292 , 11.575955591122819 ] // close loop
            ]   
        ]
       }
     } 
   }
})