This function returns true if the distance between a trajectory object within the specified time range and the specified geometry object is within the reference distance.
Syntax
boolean ST_distanceWithin(trajectory traj, tsrange range, geometry g, float8 d);
boolean ST_distanceWithin(trajectory traj, timestamp t1, timestamp t2, geometry g, float8 d);
Parameters
Parameter | Description |
traj | The trajectory object. |
t1 | The start time. |
t2 | The end time. |
range | The time range. |
g | The specified geometry object. |
d | The reference distance. |
Example
Select ST_distanceWithin(traj, '2010-1-1 13:00:00', '2010-1-1 14:00:00', 'LINESTRING(0 0, 5 5, 9 9)'::geometry, 10) from traj_table;
st_distancewithin
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