[Nexus] Re: NeXus Digest, Vol 8, Issue 4

[Timothy Kelley]

Hi Hartmut,

I do not know why the writers of the nexus API chose to do this, but they
did: if you look around line 1390 (give or take) of napi5.c you'll see that
the temporary dimensions array, which already has been assigned via
get_..._dims, is overwritten:

if (data_id == H5T_STRING){
    for ( i=0; i < iRank; i++)
   {
        myDim[i] = H5Tget_size( ...)
    }
}

This doesn't happen in napi4.c. If you comment out these lines, perhaps
you'll get the array dimensions.

Good luck,
Tim Kelley
tkelley at caltech.edu

----- Original Message ----- 
From: <nexus-request at anl.gov>
To: <nexus at anl.gov>
Sent: Thursday, March 25, 2004 10:00 AM
Subject: NeXus Digest, Vol 8, Issue 4


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>    1. NXgetinfo for NX_CHAR datasets (Hartmut Gilde)
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> ----------------------------------------------------------------------
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> Date: Wed, 24 Mar 2004 17:36:52 +0100
> From: Hartmut Gilde <Hartmut.Gilde at frm2.tum.de>
> To: nexus at anl.gov
> Subject: [Nexus] NXgetinfo for NX_CHAR datasets
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> Hi all,
>
> when i create a dataset of type NX_CHAR using NXmakedata
> a following call to NXgetinfo obviously doesn't return the proper
dimensions.
> instead, it always delivers the size of the current data type in any
dimension
> array element.
>
> It works fine for any other data type however.
> What is the purpose of this behaviour and how can the actual dimensions
for
> NX_CHAR datasets be retrieved ???
>
> Thanks in advance,
> Hartmut Gilde
>
>
>
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