Hello, I've tried to make a linestring with z value as below
select st_isvalid(a.p), st_isvalid(b.q) from (select st_geomfromtext ('LINESTRING Z(0 0 0, 1 0 0)') as p) as a, (select st_geomfromtext('LINESTRING Z(0 0 0, 0 0 1)') as q) as b the result shows that linestring from table b is not valid,,it's caused too few points.. is it impossible to make linestring (0 0 0, 0 0 1) ? how to make it valid? thanks.. --t -- View this message in context: http://postgis.17.n6.nabble.com/LinestringZ-not-valid-tp5000695.html Sent from the PostGIS - User mailing list archive at Nabble.com. _______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users