Transform a temporal circular buffer to another subtype

tcbufferInst(tcbuffer) → tcbufferInst

tcbufferSeq(tcbuffer) → tcbufferSeq

tcbufferSeqSet(tcbuffer) → tcbufferSeqSet

SELECT asText(tcbufferSeq(tcbuffer 'Cbuffer(Point(1 1), 0.5)@2001-01-01', 'discrete'));
-- {Cbuffer(Point(1 1),0.5)@2001-01-01}
SELECT asText(tcbufferSeq(tcbuffer 'Cbuffer(Point(1 1), 0.5)@2001-01-01'));
-- [Cbuffer(Point(1 1),0.5)@2001-01-01]
SELECT asText(tcbufferSeqSet(tcbuffer 'Cbuffer(Point(1 1), 0.5)@2001-01-01'));
-- {[Cbuffer(Point(1 1),0.5)@2001-01-01]}

Transform a temporal circular buffer to another interpolation

setInterp(tcbuffer, interp) → tcbuffer

SELECT asText(setInterp(tcbuffer 'Cbuffer(Point(1 1),0.2)@2001-01-01','linear'));
-- [Cbuffer(Point(1 1),0.2)@2001-01-01]
SELECT asText(setInterp(tcbuffer '{[Cbuffer(Point(1 1),0.1)@2001-01-01], 
  [Cbuffer(Point(1 1),0.2)@2001-01-02]}', 'discrete'));
-- {Cbuffer(Point(1 1),0.1)@2001-01-01, Cbuffer(Point(1 1),0.2)@2001-01-02}

Round the points and the radii of the temporal circular buffer to the number of decimal places

round(tcbuffer,integer) → tcbuffer

SELECT asText(round(tcbuffer '{[Cbuffer(Point(1 1.123456789),0.123456789)@2001-01-01, 
  Cbuffer(Point(1 1),0.5)@2001-01-02)}', 3));
/* {[Cbuffer(Point(1 1.123),0.123)@2001-01-01, Cbuffer(Point(1 1),0.5)@2001-01-02)} */