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Querying Geo Shapesedit
The unusual thing about the geo_shape query is that it allows us to query and filter using shapes, rather than just points.
For instance, if our user steps out of the central train station in Amsterdam, we could find all landmarks within a 1km radius with a query like this:
GET /attractions/landmark/_search
{
"query": {
"geo_shape": {
"location": {
"shape": {
"type": "circle",
"radius": "1km",
"coordinates": [
4.89994,
52.37815
]
}
}
}
}
}
|
The query looks at geo-shapes in the |
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The |
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The shape is a circle, with a radius of 1km. |
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This point is situated at the entrance of the central train station in Amsterdam. |
By default, the query (or filter—do the same job) looks for indexed
shapes that intersect with the query shape. The relation parameter can be
set to disjoint to find indexed shapes that don’t intersect with the query
shape, or within to find indexed shapes that are completely contained by the
query shape.
For instance, we could find all landmarks in the center of Amsterdam with this query:
GET /attractions/landmark/_search
{
"query": {
"geo_shape": {
"location": {
"relation": "within",
"shape": {
"type": "polygon",
"coordinates": [[
[4.88330,52.38617],
[4.87463,52.37254],
[4.87875,52.36369],
[4.88939,52.35850],
[4.89840,52.35755],
[4.91909,52.36217],
[4.92656,52.36594],
[4.93368,52.36615],
[4.93342,52.37275],
[4.92690,52.37632],
[4.88330,52.38617]
]]
}
}
}
}
}