Return the total length traversed by the centroid, or its cumulative length over time

length(trgeometry) → float

cumulativeLength(trgeometry) → tfloat

SELECT length(trgeometry 'Polygon((0 0,1 0,1 1,0 1,0 0));[Pose(Point(0 0),0)@2001-01-01, Pose(Point(3 4),0)@2001-01-02]');
-- 5

Return the speed of the centroid as a temporal float

speed(trgeometry) → tfloat

Return the time-weighted centroid of the centroid trajectory as a geometry

twCentroid(trgeometry) → geometry

SELECT ST_AsText(twCentroid(trgeometry 'Polygon((0 0,1 0,1 1,0 1,0 0));[Pose(Point(0 0),0)@2001-01-01, Pose(Point(3 4),0)@2001-01-02]'));
-- POINT(1.5 2)