AsMVTGeom DELTA_UNIX_POSTGRES_EPOCH dist2d_pt_pt dist2d_pt_seg dist3d_pt_pt dist3d_pt_seg dist4d_pt_pt dist4d_pt_seg geo_to_tpoint geo_to_tpointinst geo_to_tpointinstset geo_to_tpointseq geo_to_tpointseqset int_cmp point_measure_to_geo_measure point_to_trajpoint tfloat_simplify tfloatseq_dp_findsplit tfloatseq_simplify tfloatseqset_simplify tpoint_affine tpoint_decouple tpoint_grid tpoint_mvt tpoint_remove_repeated_points tpoint_simplify tpoint_simplify_internal tpoint_to_geo tpoint_to_geo_measure tpointinst_affine tpointinst_affine_iterator tpointinst_decouple tpointinst_grid tpointinst_speed tpointinst_to_geo tpointinst_to_geo_measure tpointinstset_affine tpointinstset_decouple tpointinstset_grid tpointinstset_remove_repeated_points tpointinstset_to_geo tpointinstset_to_geo_measure tpointseq_affine tpointseq_decouple tpointseq_decouple1 tpointseq_dp_findsplit tpointseq_grid tpointseq_remove_repeated_points tpointseq_simplify tpointseq_to_geo tpointseq_to_geo1 tpointseq_to_geo_measure tpointseq_to_geo_measure1 tpointseq_to_geo_measure_segmentize tpointseq_to_geo_measure_segmentize1 tpointseq_to_geo_segmentize tpointseq_to_geo_segmentize1 tpointseqset_affine tpointseqset_decouple tpointseqset_grid tpointseqset_remove_repeated_points tpointseqset_simplify tpointseqset_to_geo tpointseqset_to_geo_measure tpointseqset_to_geo_measure_segmentize tpointseqset_to_geo_segmentize trajpoint_to_tpointinst

tpointinst_speed() static double tpointinst_speed ( const TInstant *  inst1, const TInstant *  inst2, datum_func2  func  ) static Returns the speed of the temporal point in the segment. Parameters [in] inst1,inst2 Instants defining the segment [in] func Distance function (2D, 3D, or geodetic)