@

语法

bool @(GeomGrid A, GeomGrid B);
bool @(GeomGrid A, Geometry B);
bool @(Geometry A, GeomGrid B);
bool @(H3Grid A, H3Grid B);
bool @(H3Grid A, Geometry B);
bool @(Geometry A, H3Grid B);

返回值

若对象A的外包框被对象B的外包框包含，则返回true，否则返回false。

参数

描述

• 判断两个GeomGrid/Geometry对象或两个H3Grid/Geometry对象的外包框的空间包含关系，若对象A的外包框被对象B的外包框包含，返回true，否则返回false。

• GeomGrid或H3Grid会转换为Geometry对象后再进行外包框空间关系判断。

• 默认会将GeomGrid对象转换为4490坐标系的Geometry对象。

• 默认会将H3Grid对象转换为4326坐标系的Geometry对象。

示例

--@(GeomGrid, GeomGrid)
SELECT COUNT(*) from geomgrid_gist_test WHERE code @ 'G00'::GeomGrid;

-------
     5

--@(GeomGrid, Geometry)
SELECT COUNT(*) from geomgrid_gist_test WHERE code @ 'SRID=4490;POLYGON((88 24,88.8 24,88.8 24.5,88 24.5,88 24))'::Geometry;

-------
     2

--@(H3Grid, H3Grid)
SELECT COUNT(*) from h3grid_gist_test where code @ ST_H3FromLatLng(-17.5, -65.0, 1);

-------
     1

--@(H3Grid, Geometry)
SELECT COUNT(*) from h3grid_gist_test WHERE code @ 'SRID=4490;POLYGON((0 30,5 30,5 38,0 38,0 30))'::Geometry;

-------
     1