common_rid_tnpoint_npoint common_rid_tnpoint_npointset common_rid_tnpoint_tnpoint datum_npoint_round DatumGetNpointP DatumGetNsegmentP ensure_valid_tnpoint_geo ensure_valid_tnpoint_npoint ensure_valid_tnpoint_npointset ensure_valid_tnpoint_stbox ensure_valid_tnpoint_tnpoint GEOM_TO_NPOINT npoint_collinear npoint_set NPOINT_TO_GEOM npoint_wkt_out npointarr_geom NpointPGetDatum npointsegm_interpolate npointsegm_locate nsegment_set nsegmentarr_geom nsegmentarr_normalize NsegmentPGetDatum PG_GETARG_NPOINT_P PG_GETARG_NSEGMENT_P PG_RETURN_NPOINT_P PG_RETURN_NSEGMENT_P tgeompointinst_tnpointinst tgeompointseq_tnpointseq tgeompointseqset_tnpointseqset tnpoint_restrict_npoint tnpoint_restrict_npointset tnpoint_restrict_stbox tnpointinst_positions tnpointinst_route tnpointinst_routes tnpointinst_tgeompointinst tnpointseq_cont_routes tnpointseq_disc_routes tnpointseq_linear_positions tnpointseq_positions tnpointseq_tgeompointseq_cont tnpointseq_tgeompointseq_disc tnpointseqset_positions tnpointseqset_routes tnpointseqset_tgeompointseqset

npointsegm_interpolate() Npoint * npointsegm_interpolate ( const Npoint *  start, const Npoint *  end, long double  ratio  ) Return a network point interpolated from a network point segment with respect to a fraction of its total length. Parameters [in] start,end Network points defining the segment [in] ratio Float between 0 and 1 representing the fraction of the total length of the segment where the interpolated network point is located