Geo Bounds Aggregation
editGeo Bounds Aggregation
editA metric aggregation that computes the bounding box containing all geo values for a field.
Example:
PUT /museums
{
"mappings": {
"properties": {
"location": {
"type": "geo_point"
}
}
}
}
POST /museums/_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",
"wrap_longitude": true
}
}
}
}
The above aggregation demonstrates how one would compute the bounding box of the location field for all documents with a business type of shop.
The response for the above aggregation:
{
...
"aggregations": {
"viewport": {
"bounds": {
"top_left": {
"lat": 48.86111099738628,
"lon": 2.3269999679178
},
"bottom_right": {
"lat": 48.85999997612089,
"lon": 2.3363889567553997
}
}
}
}
}
Geo Bounds Aggregation on geo_shape fields
editThe Geo Bounds Aggregation is also supported on geo_shape fields.
If wrap_longitude is set to true
(the default), the bounding box can overlap the international date line and
return a bounds where the top_left longitude is larger than the top_right
longitude.
For example, the upper right longitude will typically be greater than the lower left longitude of a geographic bounding box. However, when the area crosses the 180° meridian, the value of the lower left longitude will be greater than the value of the upper right longitude. See Geographic bounding box on the Open Geospatial Consortium website for more information.
Example:
PUT /places
{
"mappings": {
"properties": {
"geometry": {
"type": "geo_shape"
}
}
}
}
POST /places/_bulk?refresh
{"index":{"_id":1}}
{"name": "NEMO Science Museum", "geometry": "POINT(4.912350 52.374081)" }
{"index":{"_id":2}}
{"name": "Sportpark De Weeren", "geometry": { "type": "Polygon", "coordinates": [ [ [ 4.965305328369141, 52.39347642069457 ], [ 4.966979026794433, 52.391721758934835 ], [ 4.969425201416015, 52.39238958618537 ], [ 4.967944622039794, 52.39420969150824 ], [ 4.965305328369141, 52.39347642069457 ] ] ] } }
POST /places/_search?size=0
{
"aggs": {
"viewport": {
"geo_bounds": {
"field": "geometry"
}
}
}
}
{
...
"aggregations": {
"viewport": {
"bounds": {
"top_left": {
"lat": 52.39420966710895,
"lon": 4.912349972873926
},
"bottom_right": {
"lat": 52.374080987647176,
"lon": 4.969425117596984
}
}
}
}
}