econtains_geo_tpoint edisjoint_tpoint_geo edisjoint_tpoint_tpoint edwithin_tpoint_geo edwithin_tpoint_tpoint eintersects_tpoint_geo eintersects_tpoint_tpoint etouches_tpoint_geo tcontains_geo_tpoint tdisjoint_tpoint_geo tdwithin_tpoint_geo tdwithin_tpoint_tpoint tintersects_tpoint_geo ttouches_tpoint_geo

tdisjoint_tpoint_geo() Temporal * tdisjoint_tpoint_geo ( const Temporal *  temp, const GSERIALIZED *  geo, bool  restr, bool  atvalue  ) Temporal spatial relationships for temporal points. These relationships are applied at each instant and result in a temporal Boolean. The following relationships are supported for a temporal geometry point and a geometry: tcontains, tdisjoint, tintersects, ttouches, and tdwithin. The following relationships are supported for two temporal geometry points: tdwithin. The following relationships are supported for two temporal geography points: tdisjoint, tintersects, tdwithin. tintersects and tdisjoint for a temporal point and a geometry allow a fast implementation by (1) using bounding box tests, and (2) splitting temporal sequence points into an array of simple (that is, not self-intersecting) fragments and the answer is computed for each fragment without any additional call to PostGIS. The implementation of tcontains and ttouches involving a temporal point and a geometry is derived from the above by computing the boundary of the geometry and (1) tcontains(geo, tpoint) = tintersects(geo, tpoint) & ~ tintersects(st_boundary(geo), tpoint) where & and ~ are the temporal boolean operators and and not (2) ttouches(geo, tpoint) = tintersects(st_boundary(geo), tpoint) Notice also that twithin has a custom implementation as follows In the case of a temporal point and a geometry we (1) call PostGIS to compute a buffer of the geometry and the distance parameter d, and (2) compute the result from tpointseq_at_geometry(seq, geo_buffer) In the case of two temporal points we need to compute the instants at which two temporal sequences have a distance d between each other, which amounts to solve the equation distance(seg1(t), seg2(t)) = d. Return the temporal intersects relationship between a temporal point and a geometry SQL Function: tdisjoint()