Mongodb点内多边形没有得到结果- Mongodb + Rails

Question

我想检查一个点是否在mongodb的多边形内(mongodb 2.6)。我像这样在集合中插入数据:

db.areas.insert({"polygons":
                      {"type":"Polygon",
                         coordinates:
                          [[[-23.0651232, -45.6374645],
                            [-23.0557255, -45.6435585],
                            [-23.0370072, -45.6383228],
                            [-23.0299772, -45.6351471],
                            [-23.0025649, -45.6480217],
                            [-22.9723022, -45.6554031],
                            [-22.9340493, -45.6032181],
                            [-22.9353140, -45.5925751],
                            [-22.9383177, -45.5855370],
                            [-22.9601320, -45.5560112],
                            [-22.9645577, -45.5597878],
                            [-22.9938740, -45.5675125],
                            [-22.9939530, -45.5690575],
                            [-23.0217620, -45.5712891],
                            [-23.0241319, -45.5719757],
                            [-23.0258697, -45.5711174],
                            [-23.0268966, -45.5721474],
                            [-23.0656365, -45.6372499],
                            [-23.0651232, -45.6374645]
                        ]]
                      }
                 });

和这样的查询:

db.areas.find({polygons:
                 {$geoIntersects:
                     {$geometry:{ "type" : "Point",
                          "coordinates" : [ -22.112, -45.56 ] }
                      }
                  }
             });

但是我没有得到任何结果。什么好主意吗?

我看过这个链接:Mongodb检查点是否为多边形搜索mongodb中包含一系列点的所有多边形

如有任何帮助，不胜感激

Answer 1

我找到了答案。问题是，当我试图保存，多边形的坐标从一个Rails形式它被保存为字符串，而不是双。