Mongodb 多边形内的点未获得结果 - Mongoid + Rails

Question

我正在尝试检查一个点是否在具有 mongodb (mongodb 2.6) 的多边形内。我像这样在 de collection 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]
                        ]]
                      }
                 });

并像这样查询：

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

但我没有得到任何结果。有什么想法吗？

我看过这个链接： mongodb check if point is in polygon Search all polygons that contains a series of points in mongodb

任何帮助将不胜感激

Answer 1

我找到了答案。问题是，当我尝试保存时，Rails 形式的多边形坐标被保存为字符串而不是双精度。我在保存之前修改过，问题解决了。

Mongodb 多边形内的点未获得结果 - Mongoid + Rails

Mongodb Point inside a Polygon not getting results - Mongoid + Rails

mongodb

mongoid

ruby-on-rails-4