Se aplican las funciones estándar de modificación de secuencias: round, setInterp, shiftTime, scaleTime, shiftScaleTime, deleteTimestamp, etc.
Redondear todos los componentes numéricos a un número dado de posiciones decimales
round(trgeometry, integer) → trgeometry
SELECT asText(round( trgeometry 'Polygon((0 0,1 0,1 1,0 1,0 0));Pose(Point(1.123456789 1.123456789), 0.123456)@2001-01-01', 3)); -- POLYGON((0 0,1 0,1 1,0 1,0 0));Pose(POINT(1.123 1.123),0.123)@...
Convertir entre interpolaciones lineal y escalonada
setInterp(trgeometry, text) → trgeometry
SELECT asText(setInterp(trgeometry 'Interp=Step;Polygon((0 0,1 0,1 1,0 1,0 0));
[Pose(Point(0 0), 0.0)@2001-01-01, Pose(Point(10 0), 0.0)@2001-01-02]', 'linear'));
-- POLYGON((0 0,1 0,1 1,0 1,0 0));
-- {[Pose(POINT(0 0),0)@2001-01-01, Pose(POINT(0 0),0)@2001-01-02),
-- [Pose(POINT(10 0),0)@2001-01-02]}
Desplazar, escalar, o desplazar y escalar el dominio temporal de una trgeometry
shiftTime(trgeometry, interval) → trgeometry scaleTime(trgeometry, interval) → trgeometry shiftScaleTime(trgeometry, interval, interval) → trgeometry
SELECT asText(shiftTime(trgeometry 'Polygon((0 0,1 0,1 1,0 1,0 0)); [Pose(Point(0 0), 0.0)@2001-01-01, Pose(Point(10 0), 0.0)@2001-01-02]', interval '1 day')); -- POLYGON((0 0,1 0,1 1,0 1,0 0)); -- [Pose(POINT(0 0),0)@2001-01-02, Pose(POINT(10 0),0)@2001-01-03] SELECT asText(scaleTime(trgeometry 'Polygon((0 0,1 0,1 1,0 1,0 0)); [Pose(Point(0 0), 0.0)@2001-01-01, Pose(Point(10 0), 0.0)@2001-01-02]', interval '2 days')); -- POLYGON((0 0,1 0,1 1,0 1,0 0)); -- [Pose(POINT(0 0),0)@2001-01-01, Pose(POINT(10 0),0)@2001-01-03] SELECT asText(shiftScaleTime(trgeometry 'Polygon((0 0,1 0,1 1,0 1,0 0)); [Pose(Point(0 0), 0.0)@2001-01-01, Pose(Point(10 0), 0.0)@2001-01-02]', interval '1 day', interval '2 days')); -- POLYGON((0 0,1 0,1 1,0 1,0 0)); -- [Pose(POINT(0 0),0)@2001-01-02, Pose(POINT(10 0),0)@2001-01-04]