This function returns a new trajectory object that indicates the intersection of a trajectory object and the specified geometry object within the specified time range.

Syntax

trajectory[] ST_intersection(trajectory traj, tsrange range, geometry g);
trajectory[] ST_intersection(trajectory traj, timestamp t1, timestamp t2, geometry g);

Parameters

Parameter Description
traj The trajectory object.
t1 The start time.
t2 The end time.
range The time range.
g The specified geometry object.

If the trajectory object and the geometry object intersect at multiple spatial points, this function returns multiple sub-trajectories.

Examples

Select ST_intersection(traj, '2010-1-1 13:00:00', '2010-1-1 14:00:00', 'LINESTRING(0 0, 5 5, 9 9)'::geometry) from traj_table;