Devuelve los valores

getValues(tnpoint) → npoint[]

SELECT getValues(tnpoint '{[NPoint(1, 0.3)@2001-01-01, NPoint(1, 0.5)@2001-01-02)}');
-- {"NPoint(1,0.3)","NPoint(1,0.5)"}
SELECT getValues(tnpoint '{[NPoint(1, 0.3)@2001-01-01, NPoint(1, 0.3)@2001-01-02)}');
-- {"NPoint(1,0.3)"}

Devuelve los identificadores de ruta

routes(tnpoint) → bigintset

SELECT routes(tnpoint '{NPoint(3, 0.3)@2001-01-01, NPoint(1, 0.5)@2001-01-02}');
-- {1, 3}

Devuelve el valor en una marca de tiempo

valueAtTimestamp(tnpoint,timestamptz) → npoint

SELECT valueAtTimestamp(tnpoint '[NPoint(1, 0.3)@2001-01-01, NPoint(1, 0.5)@2001-01-03)',
  '2001-01-02');
-- NPoint(1,0.4)

Devuelve la longitud atravesada por el punto de red temporal

length(tnpoint) → float

SELECT length(tnpoint '[NPoint(1, 0.3)@2001-01-01, NPoint(1, 0.5)@2001-01-02]');
-- 54.3757408468784

Devuelve la longitud acumulada atravesada por el punto de red temporal

cumulativeLength(tnpoint) → tfloat

SELECT cumulativeLength(tnpoint '{[NPoint(1, 0.3)@2001-01-01, NPoint(1, 0.5)@2001-01-02,
  NPoint(1, 0.5)@2001-01-03], [NPoint(1, 0.6)@2001-01-04, NPoint(1, 0.7)@2001-01-05]}');
/* {[0@2001-01-01, 54.3757408468784@2001-01-02, 54.3757408468784@2001-01-03],
   [54.3757408468784@2001-01-04, 81.5636112703177@2001-01-05]} */

Devuelve la velocidad del punto de red temporal en unidades por segundo

speed({tnpointSeq, tnpointSeqSet}) → tfloatSeqSet

SELECT speed(tnpoint '[NPoint(1, 0.1)@2001-01-01, NPoint(1, 0.4)@2001-01-02,
  NPoint(1, 0.6)@2001-01-03]') * 3600 * 24;
/* Interp=Step;[21.4016800272077@2001-01-01, 14.2677866848051@2001-01-02,
   14.2677866848051@2001-01-03] */