原文地址: https://www.elastic.co/guide/en/elasticsearch/guide/current/geo-aggs.html, 版权归 www.elastic.co 所有
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Geo Aggregationsedit
Although filtering or scoring results by geolocation is useful, it is often more useful to be able to present information to the user on a map. A search may return way too many results to be able to display each geo-point individually, but geo-aggregations can be used to cluster geo-points into more manageable buckets.
Three aggregations work with fields of type geo_point:
-
geo_distance - Groups documents into concentric circles around a central point.
-
geohash_grid - Groups documents by geohash cell, for display on a map.
-
geo_bounds -
Returns the
lat/loncoordinates of a bounding box that would encompass all of the geo-points. This is useful for choosing the correct zoom level when displaying a map.
- Elasticsearch - The Definitive Guide:
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