ST_MaxM

Definición

ST_MaxM toma una geometría como un parámetro de entrada y devuelve la coordenada m máxima.

Sintaxis

sde.st_maxm (g1 sde.st_geometry)

Tipo de devolución

Número

Ejemplo

Oracle

CREATE TABLE maxm_test (id integer, geometry sde.st_geometry);  INSERT INTO MAXM_TEST VALUES ( 1901, sde.st_polygon ('polygon zm((110 120 20 3, 110 140 22 3, 120 130 26 4, 110 120 20 3))', 0) );  INSERT INTO MAXM_TEST VALUES ( 1902, sde.st_polygon ('polygon zm((0 0 40 7, 0 4 35 9, 5 4 32 12, 5 0 31 5, 0 0 40 7))', 0) );  SELECT id, sde.st_maxm (geometry) Max_M FROM MAXM_TEST;          ID             MAX_M        1901                 4       1902                12

PostgreSQL

CREATE TABLE maxm_test (id integer, geometry sde.st_geometry);  INSERT INTO maxm_test VALUES ( 1901, sde.st_polygon ('polygon zm((110 120 20 3, 110 140 22 3, 120 130 26 4, 110 120 20 3))', 0) );  INSERT INTO maxm_test VALUES ( 1902, sde.st_polygon ('polygon zm((0 0 40 7, 0 4 35 9, 5 4 32 12, 5 0 31 5, 0 0 40 7))', 0) );  SELECT id, sde.st_maxm (geometry)  AS Max_M FROM maxm_test;          id             max_m        1901                 4       1902                12