- ST_Distance(geom1, geom2):计算两个几何对象之间的距离 - ST_Contains(geom1, geom2):判断一个几何对象是否包含另一个几何对象 - ST_Within(geom1, geom2):判断一个几何对象是否在另一个几何对象内 以上是一些常见的PostgreSQL空间函数,实际上PostgreSQL和其扩展PostGIS提供了更多的空间函数,具体使用哪些函数...
SELECT find_polygon_code(ST_GeomFromText('POINT(5 5)', 4326)); 这个查询将返回 'A',因为点 (5, 5) 位于多边形 'A' 内。 这个函数使用PostGIS的ST_Contains函数来检查一个点是否位于一个多边形内。如果找到了包含该点的多边形,它将返回该多边形的编码。如果没有找到,它将抛出一个异常。你可以根据需...
FROM city, superhero WHERE ST_Contains(city.geom, superhero.geom) AND city.name = 'Gotham'; In addition to basic location awareness, PostGIS offers many features rarely found in other competing spatial databases such as Oracle Locator/Spatial and SQL Server. 安装 不同系统不同安装方式 不再此处...
ST_Contains(polygon.geom,point.geom) 1. 判断两个几何对象是否是重叠 ST_Overlaps(geometry, geometry) 1. 判断两个几何对象是否互相穿过 ST_Crosses(geometry, geometry) 1. 验证几何图形是否有效 ST_MakeValid(geom) 1. 构建线 ST_LineFromText("linestring(115.99595273353 39.716924496395,115.99633092501 39.716964...
判断两个几何对象的边缘是否接触ST_Touches(geometry, geometry) 判断两个几何对象是否互相穿过ST_Crosses(geometry, geometry) 判断两个几何对象是否是重叠ST_Overlaps(geometry, geometry) 判断A是否包含BST_Contains(geometry A, geometry B) 判断A是否覆盖BST_Covers(geometry A, geometry B) ...
selectid,name,ST_AsText(geom),ST_DistanceSphere(ST_GeomFromText('POINT(113.667096 34.753029)',4326),geom)frommytable order by geom<->ST_GeomFromText('POINT(113.667096 34.753029)',4326)limit3; 查看此对象1000 米内的所有对象与距离 SELECTid,name,lon,lat,ST_DistanceSphere(ST_GeomFromText('POINT...
(It is an indirect dependency of osm2pgsql, so it has to be installed.) The proj package contains a list of projections standardised by the EPSG in /usr/share/proj/epsg. The osm2pgsql option -E allows to choose any of them by number. The projections with dedicated options can also ...
ST_Contains(b.geom , st_geometryfromtext(concat('POINT(', a.lon, ' ', a.lat, ')'),4326) ) 是否包含函数 ST_Contains(geometry1, geometry2) 版权声明:本文为L_sliang原创文章,遵循 CC 4.0 BY-SA 版权协议,转载请附上原文出处链接和本声明。 本文链接:https://blog.csdn.net/L_sliang/...
> (st_convexhull("rast")); > ANALYZE "public"."rasters_outdb"; > SELECT > AddRasterConstraints('public','rasters_outdb','rast',TRUE,TRUE,TRUE,TRUE,TRUE,TRUE,FALSE,TRUE,TRUE,TRUE,TRUE,TRUE); > END; > VACUUM ANALYZE "public"."rasters_outdb"; ...
@@ -36,7 +36,9 @@ extern ObjectAddress CreateExtension(ParseState *pstate, CreateExtensionStmt *st extern void RemoveExtensionById(Oid extId); extern ObjectAddress InsertExtensionTuple(const char *extName, Oid extOwner, - Oid schemaOid, bool relocatable, const char *extVersion, ...