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--二进制（WKB）表示形式 SELECT geography::STGeomFromText('LINESTRING( -122.360 47.656, -122.343 47.656)', 4326).STAsBinary() --WKT表示形式 SELECT geography::STGeomFromText('LINESTRING(-122.360 47.656, -122.343 47.656)', 4326).STAsText() --空间参考 SELECT geography::STGeomFromText('LINESTRING(-122.360 47.656, -122.343 47.656)', 4326).STSrid --类型 SELECT geometry::STGeomFromText('POLYGON((-122.358 47.653, -122.348 47.649, -122.348 47.658, -122.358 47.658, -122.358 47.653))', 4326).STGeometryType() --判断是否为空 SELECT geography::STGeomFromText('POLYGON EMPTY', 4326).STIsEmpty() --判断是否为有效 Geography 格式 SELECT geography::STGeomFromText('LINESTRING(0 0, 2 2, 1 0)', 4326).STIsValid() --是否不相联 SELECT geography::STGeomFromText('LINESTRING(-122.360 47.656, -122.343 47.656)', 4326).STDisjoint(geography::STGeomFromText('POINT( -122.343 47.656)', 4326)) --点与点之间的距离 SELECT geography::STGeomFromText('POINT(118.816053 32.108986)', 4326).STDistance(geography::STGeomFromText('POINT(118.920491 31.904084)', 4326)) --返回值：:24771.3216754072 --查询某点经纬度距离1000米范围内的记录 DECLARE @GGP_LOCATE_POINT GEOGRAPHY = GEOGRAPHY::Point(31.972224,118.727901, 4326); SELECT * FROM [dbo].[Points] WHERE @GGP_LOCATE_POINT.STDistance(GEOGRAPHY::Point([LATITUDE],[LONGITUDE], 4326))<=1000 --注意经度和纬度的顺序 --点与线之间的距离 SELECT geography::STGeomFromText('LINESTRING(118.816053 32.108986, 118.920491 31.904084)', 4326).STDistance(geography::STGeomFromText('POINT(118.727901 31.972224)', 4326)) --返回值：13687.5877193686 --缓冲区 SELECT geography::STGeomFromText('LINESTRING(-122.360 47.656, -122.343 47.656)', 4326).STBuffer(1) --指定点 SELECT geography::STGeomFromText('LINESTRING(-122.360 47.656, -122.343 47.656)', 4326).STPointN(2) --起点 SELECT geography::STGeomFromText('LINESTRING(-122.360 47.656, -122.343 47.656)', 4326).STStartPoint() --终点 SELECT geography::STGeomFromText('LINESTRING(-122.360 47.656, -122.343 47.656)', 4326).STEndPoint() --最大维度 SELECT geography::STGeomFromText('POLYGON((-122.358 47.653, -122.348 47.649, -122.348 47.658, -122.358 47.658, -122.358 47.653))', 4326).STDimension() --判断是否闭合 SELECT geography::STGeomFromText('POLYGON((-122.358 47.653, -122.348 47.649, -122.348 47.658, -122.358 47.658, -122.358 47.653))', 4326).STIsClosed() --边长总长度 SELECT geography::STGeomFromText('POLYGON((-122.358 47.653, -122.348 47.649, -122.348 47.658, -122.358 47.658, -122.358 47.653))', 4326).STLength() --总表面积 SELECT geography::STGeomFromText('POLYGON((-122.358 47.653, -122.348 47.649, -122.348 47.658, -122.358 47.658, -122.358 47.653))', 4326).STArea() --判断是否相交 SELECT geography::STGeomFromText('POLYGON((-122.358 47.653, -122.348 47.649, -122.348 47.658, -122.358 47.658, -122.358 47.653))', 4326).STIntersects(geography::STGeomFromText('LINESTRING(-122.360 47.656, -122.343 47.656)', 4326)) --交集 SELECT geography::STGeomFromText('POLYGON((-122.358 47.653, -122.348 47.649, -122.348 47.658, -122.358 47.658, -122.358 47.653))', 4326).STIntersection(geography::STGeomFromText('LINESTRING(-122.360 47.656, -122.343 47.656)', 4326)) --并集 SELECT geography::STGeomFromText('POLYGON((-122.358 47.653, -122.348 47.649, -122.348 47.658, -122.358 47.658, -122.358 47.653))', 4326).STUnion(geography::STGeomFromText('POLYGON((-122.351 47.656, -122.341 47.656, -122.341 47.661, -122.351 47.661, -122.351 47.656))', 4326)) --差集 SELECT geography::STGeomFromText('POLYGON((-122.358 47.653, -122.348 47.649, -122.348 47.658, -122.358 47.658, -122.358 47.653))', 4326).STDifference(geography::STGeomFromText('LINESTRING(-122.360 47.656, -122.343 47.656)', 4326)) --余集 SELECT geography::STGeomFromText('POLYGON((-122.358 47.653, -122.348 47.649, -122.348 47.658, -122.358 47.658, -122.358 47.653))', 4326).STSymDifference(geography::STGeomFromText('POLYGON((-122.351 47.656, -122.341 47.656, -122.341 47.661, -122.351 47.661, -122.351 47.656))', 4326)) --返回指定的曲线 SELECT geography::STGeomFromText('COMPOUNDCURVE (CIRCULARSTRING (-122.358 47.653, -122.348 47.649, -122.348 47.658), CIRCULARSTRING(-122.348 47.658, -122.358 47.658, -122.358 47.653))',4326).STCurveN(2) --圆弧线段的多边形近似值 SELECT geography::STGeomFromText('CIRCULARSTRING(-122.358 47.653, -122.348 47.649, -122.348 47.658, -122.358 47.658, -122.358 47.653)',4326).STCurveToLine() --判断是否相等 SELECT geography::STGeomFromText('GEOMETRYCOLLECTION(POLYGON((-122.368 47.658, -122.338 47.649, -122.338 47.658, -122.368 47.658, -122.368 47.658)), LINESTRING(-122.360 47.656, -122.343 47.656), POINT (-122.35 47.656))', 4326).STEquals(geography::STGeomFromText('POLYGON((-122.368 47.658, -122.338 47.649, -122.338 47.658, -122.368 47.658, -122.368 47.658))', 4326)) --查找 GeometryCollection 中第n个实例 SELECT geography::STGeomFromText('MULTIPOINT(-122.360 47.656, -122.343 47.656)', 4326).STGeometryN(2) |
本文转载自 博客园·贝尔格里尔斯，内容有改动，原文链接为 http://www.cnblogs.com/ytwy/p/5977848.html
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