当前所处在的位置（113.858202 , 22.583819 ）,需要查询我附近1000米内的小区，并安装由近到远的顺序排列 SELECT s.id,s.name,s.lng,s.lat, round ((st_distance
point(116.3424590000,40.0497810000)) as juli FROM table ORDER BY juli ASC 没用除以1000，所以是以米为单位 方式2：st_distance...SELECT *, (st_distance(point(lng,lat),point(116.3424590000,40.0497810000))*111195/1000 ) as juli FROM...table ORDER BY juli ASC st_distance 计算的结果单位是度，需要乘111195（地球半径6371000*PI/180）是将值转化为米。
116.28828 40.053257)')); 读取坐标 select *,astext(location) from service; 查询距离 SELECT name,content,tel, (st_distance...AS distance FROM service ORDER BY distance; 判断距离 SELECT name,content,tel,astext(location),FLOOR(st_distance
ST_DISTANCE(ST_TRANSFORM(geometry g1,900913),ST_TRANSFORM(geometry g2,900913)) 计算两个点之间的距离（单位米） ST_Distance
两个点之间的距离 距离计算函数 ST_Distance 文本转换地理几何类型函数 ST_GeogFromText 。...文本转换为地理几何类型函数 ST_GeographyFromText 计算距离，单位是m的方法 -- 921.37629155 select ST_Distance(ST_GeographyFromText...ST_GeographyFromText('SRID=4326;POINT(114.025919 22.534866)') ); -- 921.37629155 SELECT ST_Distance...22.534866)', 4326 ),26986) ); 计算距离，单位是度 # unit=degrees result=0.00891134108875483 SELECT ST_Distance...';', ',') ||'))' , 4326) 计算gps附近30m内的围栏 使用函数ST_DWithin 判断一个几何对象是否在另一个的r距离以内： SELECT ST_Distance
30.594)')); -- 线段的点数 SELECT ST_NumPoints(ST_GeomFromText('LINESTRING(0 0, 1 1)')); -- 两点之间的距离 SELECT ST_DISTANCE...port_id FROM t_port_main WHERE ST_Contains(ST_BUFFER(@point1,@radius),port_lonlat)=1 LIMIT 10; SELECT ST_Distance...point1,@radius),port_lonlat) AS contain, port_id FROM t_port_main ORDER BY contain ASC LIMIT 10; SELECT ST_Distance...一个几何是否与另一个几何相交 83 ST_Intersects() 一个几何是否与另一个相交 84 ST_Overlaps() 一个几何是否与另一个重叠 85 ST_Within() 一个几何是否在另一个之内 86 ST_Distance...ST_CoveredBy ST_CoveredByFilter ST_Covers ST_CoversFilter ST_Crosses ST_Difference ST_Dimension ST_Disjoint ST_Distance
select uid, name, ST_AsText(location), ST_Distance(ST_GeomFromText('POINT(116.404177 39.909652)',4326...116.404177 39.909652)'::geometry limit 5; 第六步：查看此对象 1000米以内的所有对象与距离： select uid, name, ST_AsText(location),ST_Distance
距离，长度和面积计算 可以通过函数st_distance(geom,geom)或者st_distance(wkt,wkt)函数计算两点的距离 ?
(ST_Transform(geom1, 26986), ST_Transform(geom2, 26986)) ST_Distance(geom1::geography, geom1::geograpy...) ST_Distance(geom1, geom2, false) (推荐方法) ST_DistanceSphere 以几何所定义的SRID椭球体进行计算，返回单位为米；比ST_DistanceSpheroid...快； ST_DistanceSpheroid 需要另外提供椭球体信息进行计算，返回单位为米； ST_Distance 返回二维平面上的笛卡尔距离，单位是投影单位。...SELECT ST_Distance( ST_GeomFromText('POINT(-72.1235 42.3521)',4326), ST_GeomFromText...(uc.geom,ua.geom) = ( select min(ST_Distance(uc.geom,ua.geom)) from uscities uc, usaccidents ua where
city, longitude, latitude, round( ( st_distance
Y(location),Astext(location) from points where INTERSECTS( location, GEOMFROMTEXT(@rect) ) ;常用查询语句案列st_distance...两点之间地理距离： 求两点之间的直线距离select st_distance(ST_GEOMFROMTEXT("POINT(0 0)"),p.pot),p.
where->group by ->having 1.2 地理位置函数 lng经度 lat 纬度 point(lng,lat)--> 描述成为一个点 st_distance--> 对两个点进行计算 st_distance...log,lat),point(106.485737,29.531308))这个结果要乘以111195 得到的数据就是两点之间的直接距离，单位是米 所以可以用它来进行数据定位的查询 select *,(st_distance
Place1', ST_MakePoint(-74.0060, 40.7128)), ('Place2', ST_MakePoint(-118.2437, 34.0522)); 2.2 空间查询 我们可以用 ST_Distance...SELECT name, ST_Distance(location::geography, ST_MakePoint(-75, 40)::geography) AS distance...FROM Places ORDER BY distance LIMIT 1; 在这个查询中，ST_MakePoint 用于创建一个新的地理空间点，而 ST_Distance 则用于计算这个点与 Places
环境 geometry推荐在5.6版本以上使用，尽管大部分功能在5.5已经可用，除了距离计算函数st_distance等新增函数。 2....8.2 MySQL中的计算距离，长度，面积等绝对数值的空间计算函数（area(), GLength(), st_distance()）存在一定的误差，尽量不要使用。
检查数据库几何字段并在geometry_columns中归档 ST_SetSRID(geometry, integer) 给几何对象设置空间参考（在通过一个范围做空间查询时常用） 几何对象关系函数 函数 说明 ST_Distance...计算两点之间的距离 -- 两个点之间的距离,距离单位是mselect ST_Distance(ST_GeographyFromText('SRID=4326;POINT(114.017299 22.537126...)'), ST_GeographyFromText('SRID=4326;POINT(114.025919 22.534866)'));-- 两点之间的斜度数 SELECT ST_Distance(ST_GeomFromText...'srid=4326;point(-110 29)':: geography, 1000000); -- 计算从西雅图(-122.33 47.606)飞往伦敦(0.0 51.5)的距离select st_distance...linestring(-122.33 47.606, 0.0 51.5)'::geography, 'point(-21.96 64.15)'::geography); -- 计算点线之间的距离select st_distance
function ST_Latitude [1] New function ST_Longitude [1] New function ST_Transform [1] Geography support in ST_Distance...ST_Validate, ST_Area [1 2 3 4 5 6 7 8] ST_Distance_Sphere for geographic geometries [1] Ellipsoidal ST_Distance...GEOMETRYCOLLECTION [1 2 3] Optional SPATIAL keyword in R-tree index clauses [1] Ability to specify length unit in ST_Distance
function ST_Latitude [1] New function ST_Longitude [1] New function ST_Transform [1] Geography support in ST_Distance...GEOMETRYCOLLECTION [1 2 3] Optional SPATIAL keyword in R-tree index clauses [1] Ability to specify length unit in ST_Distance
)检查数据库几何字段并在geometry_columns中归档ST_SetSRID(geometry, integer)给几何对象设置空间参考（在通过一个范围做空间查询时常用）几何对象关系函数函数说明ST_Distance...计算两点之间的距离-- 两个点之间的距离,距离单位是mselect ST_Distance(ST_GeographyFromText('SRID=4326;POINT(114.01729922.537126...)'),ST_GeographyFromText('SRID=4326;POINT(114.025919 22.534866)'));-- 两点之间的斜度数SELECT ST_Distance(ST_GeomFromText...location,'srid=4326;point(-110 29)'::geography, 1000000);-- 计算从西雅图(-122.33 47.606)飞往伦敦(0.0 51.5)的距离select st_distance...linestring(-122.33 47.606, 0.0 51.5)'::geography,'point(-21.9664.15)'::geography);-- 计算点线之间的距离select st_distance
RETURN ST_Distance(ST_Point(13.13, -87.65),ST_Point(13.12, -87.60)) AS distance; +-------------------...`user`.name, ST_Distance(a_start.address.geo_point, a_end.address.geo_point) AS distance, a_start.address.address...`user`.name AS e_name, ST_Distance(a_start.address.geo_point, a_end.address.geo_point) AS distance RETURN...`user`.name AS e_name, ST_Distance(a_start.address.geo_point, a_end.address.geo_point) AS distance WITH...`user`.name AS e_name, ST_Distance(a_start.address.geo_point, a_end.address.geo_point) AS distance WITH
CREATE TABLE geom (g GEOMETRY NOT NULL); CREATE SPATIAL INDEX g ON geom (g); 常用的空间计算函数 1、判断两点之间的距离 ST_Distance
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