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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
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> These latter two functions accept NF90_GLOBAL as “varid” but an error is > thrown when this is used for varid in nf90_inquire_variable(). This may be a bug. The netCDF Fortran 90 document did not say using NF90_GLOBAL in the varid argument is illegal. As nf90_inquire_variable() calls nc_inq_var() internally, the netCDF-C 4.3.3.1 document for nc_inq_var() also did not say using NC_GLOBAL is illegal. Although nf90_inquire() can get you the desired result as pointed out by Nick Papior, but you may still want to report this possible bug to the Unidata netCDF Support <support-netcdf@xxxxxxxxxxxxxxxx> Wei-keng On Jul 14, 2015, at 11:13 AM, <Jim.Enright@xxxxxxxxxxxxxx> <Jim.Enright@xxxxxxxxxxxxxx> wrote: > Hi, > > I’m wondering if it is possible to use the nf90_inquire_variable() function > to find information about global attributes in a similar way to > nf90_inquire_attribute()? > For example, should it be possible to set varid to be NF90_GLOBAL to find the > number of global attributes? i.e.: > call check(nf90_inquire_variable(ncid, NF90_GLOBAL, nAtts = numAttr)) > > The reason for this query is because we have a code block (snippet shown > below) which prints some header information by looping over an array of > variables. > It first calls nf90_inquire_variable to get the number of attributes and then > uses this to get more details about the attributes by calling > nf90_inq_attname() and nf90_inquire_attribute(). > These latter two functions accept NF90_GLOBAL as “varid” but an error is > thrown when this is used for varid in nf90_inquire_variable(). > Is this the expected behaviour of nf90_inquire_variable? If so, can you > recommend the best alternative way to get the number of global attributes – > nf90_inquire() perhaps? > > do idxVar = varBegin, numVars > > varName = varInfoArray%varInfoArr(idxVar)%varName > > if( varName .eq. 'UNDEFINED' ) then > varid = nf90_global > else > varid = varInfoArray%varInfoArr(idxVar)%varId > end if > > call check( nf90_inquire_variable( ncid, varid, nAtts = numAttr ) > … > … > do idxAttr = 1, numAttr > > ! Get the names & details of the attributes > call check( nf90_inq_attname( ncid, varid, idxAttr, attrName )) > > call check( nf90_inquire_attribute( ncid, varid, attrName, netCDFType, > numAttrValues )) > end do > … > end do > > Best regards, > Jim > ______________________________________________________________________ > > Fujitsu Laboratories of Europe Limited > Hayes Park Central, Hayes End Road, Hayes, Middlesex, UB4 8FE > Registered No. 4153469 > > This e-mail and any attachments are for the sole use of addressee(s) and > may contain information which is privileged and confidential. Unauthorised > use or copying for disclosure is strictly prohibited. The fact that this > e-mail has been scanned by Trendmicro Interscan does not guarantee that > it has not been intercepted or amended nor that it is virus-free. > > _______________________________________________ > netcdfgroup mailing list > netcdfgroup@xxxxxxxxxxxxxxxx > For list information or to unsubscribe, > visit:http://www.unidata.ucar.edu/mailing_lists/
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