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>From: Mike Trexler <address@hidden> >Organization: . >Keywords: 199910182037.OAA18592 >Steve, > >I'm trying create a rather small grid file using gdcfil >and then putting the data into the grid with gdedit. Is >there some minimum limit on the size. I tried making a >2X2 grid which gdcfil did, but then when I tried putting >data into it, it gave me errors.... > > [GR -6] Invalid navigation block. > [GDEDIT -8] The output grid file new.grd is invalid. > >Just wondering if you knew. > >Thanks >Mike > >-- >__________________________________________________ >************************************************** >****** C. Michael Trexler ****** >****** N C State Univ. - Box 8208 ****** >****** Dept. of Mar/Earth/Atmos. Sciences ****** >****** Research III Rm. 100 ****** >****** Raleigh, NC 27695-8208 ****** >****** (919) 515-1447 Phone ****** >****** (919) 515-1683 Fax ****** >************************************************** >-------------------------------------------------- >****** address@hidden ****** >__________________________________________________ > Mike, You need at least 3 grid points for both kx,ky due to the requirements of calculating many of the grid functions. The gr -6 errtor you get is from grrnav.f which has: IF ( (ier .ne. 0) .or. (kx .le. 2) .or. (ky .le. 2) ) THEN iret = -6 RETURN END IF Steve Chiswell