Geo Bounds Aggregation
该指标聚合用于计算某字段中所有geo_point值的边界框(矩形区域)。
示例:
PUT /museums
{
"mappings": {
"doc": {
"properties": {
"location": {
"type": "geo_point"
}
}
}
}
}
POST /museums/doc/_bulk?refresh
{"index":{"_id":1}}
{"location": "52.374081,4.912350", "name": "NEMO Science Museum"}
{"index":{"_id":2}}
{"location": "52.369219,4.901618", "name": "Museum Het Rembrandthuis"}
{"index":{"_id":3}}
{"location": "52.371667,4.914722", "name": "Nederlands Scheepvaartmuseum"}
{"index":{"_id":4}}
{"location": "51.222900,4.405200", "name": "Letterenhuis"}
{"index":{"_id":5}}
{"location": "48.861111,2.336389", "name": "Musée du Louvre"}
{"index":{"_id":6}}
{"location": "48.860000,2.327000", "name": "Musée d'Orsay"}
POST /museums/_search?size=0
{
"query" : {
"match" : { "name" : "musée" }
},
"aggs" : {
"viewport" : {
"geo_bounds" : {
"field" : "location", #1
"wrap_longitude" : true #2
}
}
}
}
1 用于指定获取边界数据来源的字段
2 wrap_longitude是一个可选参数，用于指定是否允许边界框与国际日期变更线(international date line)重合。默认为true。
针对业务类型为商店(shop)的所有文档，上述聚合会计算所有商店所在的矩形区域。
其响应为：
{
...
"aggregations": {
"viewport": {
"bounds": {
"top_left": {
"lat": 48.86111099738628,
"lon": 2.3269999679178
},
"bottom_right": {
"lat": 48.85999997612089,
"lon": 2.3363889567553997
}
}
}
}
}
全部指标聚合，请参考
单值指标聚合
多值指标聚合
地理位置相关聚合
可执行Map-Reduce计算的聚合
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