gserialized_from_lwgeom lwflags_t lwgeom_as_lwpoint lwgeom_from_gserialized lwgeom_get_srid lwgeom_has_m lwgeom_has_z lwpoint_get_m lwpoint_get_x lwpoint_get_y lwpoint_get_z lwpoint_make WKB_EXTENDED WKB_HEX WKB_ISO WKB_NDR WKB_NO_NPOINTS WKB_NO_SRID WKB_SFSQL WKB_XDR WKT_EXTENDED WKT_ISO WKT_SFSQL

lwpoint_get_y() double lwpoint_get_y ( const LWPOINT *  point )