Hi, I've now added a sample data file and sample opendx program to read the data, using the ImportCOARDShdf module which I wrote myself, using the 'import' source code as a basis. I am using OpenDX versions 4.2.0 and 4.3.0, and hdf version 4.1r5.
I compiled HDF myself from the tar file on the NCSA site. HDF was compiled with the -DHAVE_NETCDF option although I don't think this relevant in this case. The data and opendx network are here: ftp.soc.soton.ac.uk /pub/jods/opendx/use_importhdf.tar.gz John Michael Wiltberger wrote: > > Hi John, > Thanks for the code. I hope you don't mind if I ask you a few > questions because I'm having the same problem with your modules as I did > with mine. Namely SDstart returns -1 when I try to open the file. What > versions of HDF and OpenDX are you using? Did you compile either set > yourself or use precompiled binaries? Would you mind sending putting a > datafile on your ftp site so I can see if the problem is with my data? > > Thanks, > Mike > > John Stark wrote: > > Hi, > > > > I've written a runtime loadable hdf 4 import module designed for single > > file SD data - I've put the code on our ftp site: > > ftp.soc.soton.ac.uk > > It can be found here: > > mporthdf.tar.gz > > > > The code contains makefiles for IRIX, Solaris, and linux - see > > importhdf.make.[platform]. > > > > The code imports array data from a file, taking a start, stride and edge > > as vectors. It attempts to assign the axes to X,Y,Z,T in a similar > > method to the ferret package for netcdf data. There are some hacks in > > there specifically for our ocean model data sets - sorry. > > > > John > > ------------------------------------------ > > John Stark > > Applications Programmer > > Southampton Oceanography Centre, UK > > Tel. +44 (0)23 8059 6571 > > e-mail jods at soc . soton . ac . uk > > ------------------------------------------ > > > > Michael Wiltberger wrote: > > > >>Hi All, > >> I'm trying to write a runtime loadable module which uses the SD or > >>Multifile Scientific Data Interface to HDF 4.x. The problem is that if > >>I use the SDstart command to open my file it returns an error code. If > >>I use the DFSD or Single-file Scientific Data Interface I can open the > >>file, but I loose the random access features which make HDF so useful. > >>Has anyone else had any success with writing HDF 4.x modules which use > >>the SD interface? > >> Another option would be to use an outboard module (which worked for > >>4.1.3), but I'm encountering the previously reported problems with > >>outboard modules for version greater than 4.2. > >> Any assistance is greatly appreciated since I'm growing desperate. > >> > >>Thanks, > >>Mike > >> > >>-- > >>_______________________________________________________ > >>|Michael Wiltberger, Ph.D | | > >>|NCAR/HAO | Life's unfair - | > >>|3450 Mitchel Lane | but the root | > >>|Boulder, CO 80301 | password helps! | > >>| | | > >>|Ph: (303)497-1532 | VI VI VI | > >>|Fx: (303)497-2180 | The editor of the | > >>|email: [EMAIL PROTECTED] | beast | > >>|_____________________________|_______________________| > > > > > > -- > > > > > > -- > _______________________________________________________ > |Michael Wiltberger, Ph.D | | > |NCAR/HAO | Life's unfair - | > |3450 Mitchel Lane | but the root | > |Boulder, CO 80301 | password helps! | > | | | > |Ph: (303)497-1532 | VI VI VI | > |Fx: (303)497-2180 | The editor of the | > |email: [EMAIL PROTECTED] | beast | > |_____________________________|_______________________| -- ------------------------------------------ John Stark Applications Programmer Southampton Oceanography Centre Tel. +44 (0)23 8059 6571 e-mail [EMAIL PROTECTED] ------------------------------------------
