doublen_to_point geoaggstate_check geoaggstate_check_state geoaggstate_check_temp tpoint_extent_transfn tpoint_tcentroid_transfn tpoint_transform_tcentroid tpointdiscseq_transform_tcentroid tpointinst_tcentroid_finalfn tpointinst_transform_tcentroid tpointseq_tcentroid_finalfn tpointseq_transform_tcentroid tpointseqset_transform_tcentroid

tpoint_tcentroid_transfn() SkipList * tpoint_tcentroid_transfn ( SkipList *  state, Temporal *  temp  ) Transition function for temporal centroid aggregation of temporal point values.