tpoint_get_coord tpointseq_azimuth tpointseq_cumulative_length tpointseq_direction tpointseq_is_simple tpointseq_length tpointseq_linear_trajectory tpointseq_speed tpointseq_twcentroid tpointseqset_azimuth tpointseqset_cumulative_length tpointseqset_direction tpointseqset_is_simple tpointseqset_length tpointseqset_linear_trajectory tpointseqset_speed tpointseqset_twcentroid

tpointseq_speed() TSequence * tpointseq_speed ( const TSequence *  seq ) Return the speed of a temporal point sequence. Parameters [in] seq Temporal sequence Precondition The temporal point has linear interpolation @csqlfn Tpoint_speed()