INSERT INTO sample_geoms VALUES (6, ST_Geometry('linestring(20 20, 30 30, 30 20, 20 30 )' ,0)) INSERT INTO sample_geoms VALUES (7, ST_Geometry('polygon((40 40, 50 40, 50 50, 40 40 ))' ,0)) SELECT id, ST_IsSimple(geometry) Is_Simple FROM sample_geoms 結果: ID IS_SIM...
(6, QSYS2.ST_LINESTRING('linestring(20 20, 30 30, 30 20, 20 30)')), (7, QSYS2.ST_POLYGON('polygon((40 40, 50 40, 50 50, 40 40))')); SELECT id, CASE QSYS2.ST_ISSIMPLE(geometry) WHEN 0 THEN 'Geometry is not simple' WHEN 1 THEN 'Geometry is simple' END AS simple F...
SELECTpid,sde.st_issimple(g1)ASIs_it_simpleFROMissimple_test;pidis_it_simple1t2f SQLite CREATETABLEissimple_test(pidinteger);SELECTAddGeometryColumn(NULL,'issimple_test','g1',4326,'linestring','xy','null'); INSERTINTOissimple_testVALUES(1,st_linestring('linestring (10 10, 20 20, 30 ...
此INSERT 语句用于向 issimple_test 表中插入两条记录。第一条记录是一个简单线串,因为它不与内部相交。按照 OGC 的定义,第二条是非简单线串,因为它与内部相交。 此查询将返回 ST_IsSimple 函数的结果。因为第一条记录的线串是简单线串,所以返回 1 或 t;而第二条记录的线串是非简单线串,所以返回 0 或 ...
st - Simple Test micro-framework for Go. Contribute to nbio/st development by creating an account on GitHub.
ST_IsSimple,ApsaraDB RDS:當輸入參數是一個沒有自相交點的簡單Geometry對象時,返回true。 boolean ST_IsSimple(geometry geomA);參數參數名稱描述geomA目標Geometry對象。描述該函數支援3D對象,並且不會刪除Z座標。
如果geometry執行個體是簡單的執行個體 (如開放地理空間協會 (Open Geospatial Consortium,OGC) 所定義),就會傳回 1。 如果geometry執行個體不是簡單的執行個體,就會傳回 0。 語法 .STIsSimple ( ) 傳回型別 SQL Server 傳回類型:bit CLR 傳回類型:SqlBoolean ...
st - simple terminal st is a simple terminal emulator for X which sucks less. Notes about this fork This is a fork of st, the original repo can be found here:https://git.suckless.org/st/ The original st webpage is here:https://st.suckless.org/ ...
boolean ST_IsSimple(geometry geomA); 参数 参数名称描述 geomA 目标Geometry对象。 描述 该函数支持3D对象,并且不会删除Z坐标。 示例 返回true的情况: SELECT ST_IsSimple('LINESTRING(0 0,0 2,2 0,0 0)'::geometry); st_issimple --- t (1 row) 返回false的情况: SELECT ST_IsSimple('LINEST...
ST_IsSimple returns true if the 2D projection of the input geometry is simple. For more information about the definition of a simple geometry, seeGeometric simplicity. Syntax ST_IsSimple(geom) Arguments geom A value of data typeGEOMETRYor an expression that evaluates to aGEOMETRYtype. ...