cbuffersegm_distance_turnpt nad_cbuffer_stbox nad_tcbuffer_cbuffer nad_tcbuffer_geo nad_tcbuffer_stbox nad_tcbuffer_tcbuffer nai_tcbuffer_cbuffer nai_tcbuffer_geo nai_tcbuffer_tcbuffer shortestline_tcbuffer_cbuffer shortestline_tcbuffer_geo shortestline_tcbuffer_tcbuffer tcbuffer_cbuffer_distance_turnpt tcbuffer_tcbuffer_distance_turnpt tdistance_tcbuffer_cbuffer tdistance_tcbuffer_geo tdistance_tcbuffer_tcbuffer

cbuffersegm_distance_turnpt() int cbuffersegm_distance_turnpt ( const Cbuffer *  start1, const Cbuffer *  end1, const Cbuffer *  start2, const Cbuffer *  end2, TimestampTz  lower, TimestampTz  upper, TimestampTz *  t1, TimestampTz *  t2  ) Return 1 or 2 if two temporal circular buffers 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 [out] lower,upper Timestamps defining the segments [out] t1,t2 Timestamps defining the resulting period, may be equal Precondition The segments are not constant.