import grails.mongodb.geo.*
...
class Entry {
ObjectId id
Shape shape
static mapping = {
shape geoIndex:'2dsphere'
}
}
...
new Entry(shape: Polygon.valueOf([[[3, 1], [1, 2], [5, 6], [9, 2], [4, 3], [3, 1]]]) ).save()
new Entry(shape: LineString.valueOf([[5, 2], [7, 3], [7, 5], [9, 4]]) ).save()
new Entry(shape: Point.valueOf([5, 2])).save()Purpose
Executes a MongoDB $geoIntersects query
Examples
Given:
And then use the findBy*GeoIntersects method to figure out whether shapes intersect with each other:
assert Entry.findByShapeGeoIntersects( Polygon.valueOf( [[ [0,0], [3,0], [3,3], [0,3], [0,0] ]] ) )
assert Entry.findByShapeGeoIntersects( LineString.valueOf( [[1,4], [8,4]] ) )
// native query
assert Entry.findByShapeGeoIntersects( [ $geometry : [type: "Polygon" ,
coordinates: [ [ [ 0 , 0 ] , [ 3 , 6 ] , [ 6 , 1 ] , [ 0 , 0 ] ] ]
]
])Description
The $geoIntersects operator is a geospatial query operator that selects all locations that intersect with a GeoJSON object. See $geoIntersects.