ensure_valid_tcbuffer_cbuffer ensure_valid_tcbuffer_geo ensure_valid_tcbuffer_stbox ensure_valid_tcbuffer_tcbuffer tcbuffer_at_cbuffer tcbuffer_at_geom tcbuffer_at_stbox tcbuffer_end_value tcbuffer_expand tcbuffer_in tcbuffer_make tcbuffer_members tcbuffer_minus_cbuffer tcbuffer_minus_geom tcbuffer_minus_stbox tcbuffer_points tcbuffer_radius tcbuffer_restrict_cbuffer tcbuffer_restrict_geom tcbuffer_restrict_stbox tcbuffer_start_value tcbuffer_to_tfloat tcbuffer_to_tgeompoint tcbuffer_value_at_timestamptz tcbuffer_value_n tcbuffer_values tcbufferinst_in tcbufferinst_make tcbufferinst_members tcbufferinst_tfloatinst tcbufferinst_tgeompointinst tcbuffersegm_distance_at_time tcbuffersegm_distance_turnpt tcbuffersegm_dwithin_turnpt tcbuffersegm_intersection tcbuffersegm_intersection_value tcbufferseq_in tcbufferseq_make tcbufferseq_members tcbufferseq_tfloatseq tcbufferseq_tgeompointseq tcbufferseqset_in tcbufferseqset_make tcbufferseqset_members tcbufferseqset_tfloatseqset tcbufferseqset_tgeompointseqset tgeometry_to_tcbuffer tgeominst_tcbufferinst tgeomseq_tcbufferseq tgeomseqset_tcbufferseqset

tcbuffersegm_distance_turnpt() int tcbuffersegm_distance_turnpt ( Datum  start1, Datum  end1, Datum  start2, Datum  end2, Datum dist  UNUSED, TimestampTz  lower, TimestampTz  upper, TimestampTz *  t1, TimestampTz *  t2  ) Return 1 or 2 if two temporal circular buffer segments are at a minimum distance during the period defined by the output timestamps, return 0 otherwise. These are the turning points when computing the temporal distance. Parameters [in] start1,end1 Circular buffers defining the first segment [in] start2,end2 Circular buffers the second segment [in] dist Distance, unused parameter [out] lower,upper Timestamps defining the segments [out] t1,t2 Timestamps defining the resulting period, may be equal Precondition The segments are not constant.