Thanks Mark !!!
Filename is complete. The file_id that is returned from hdfopen_f
(filename, H5F_ACC_RDONLY_F, file_id, error) is 16777217 and
error code is 0.
How do I find if 'BeamTime' is in root group or sub group ?
The H5Dump is as below I guess the BeamTime is inside a GROUP "All_Data",
GROUP "All_Data" {
GROUP "AMS-SDR_All" {
DATASET "BeamTime" {
DATATYPE H5T_STD_I64BE
DATASPACE SIMPLE { ( 12, 96 ) / ( H5S_UNLIMITED, H5S_UNLIMITED
) }
DATA {
(0,0): 1816819231684734, 1816819231702752, 1816819231720770,
(0,3): 1816819231738788, 1816819231756806, 1816819231774824
Gompie
On Tue, Aug 4, 2015 at 2:52 PM, Miller, Mark C. <[email protected]> wrote:
> Are you sure you are getting a valid file_id back from the h5fopen_f call?
> Are you by chance missing an extension on the filename such as
> 'satfilename.h5' and is the dataset 'BeamTime' in the 'root group' of the
> file or perhaps some sub-group?
>
> Mark
>
>
> From: Hdf-forum <[email protected]> on behalf of Richa
> Mathur <[email protected]>
> Reply-To: HDF Users Discussion List <[email protected]>
> Date: Tuesday, August 4, 2015 10:42 AM
> To: "[email protected]" <[email protected]>
> Subject: [Hdf-forum] h5dopen returns error
>
>
>
> Hi
> I am trying to read a hdf5 file in fortran95 ( gfortran). Peice of code is
>
> INTEGER(HID_T) :: file_id ! File identifier
> INTEGER(HID_T) :: dset_id ! Dataset identifier
>
> INTEGER :: error ! Error flag
> INTEGER :: i, j
>
> INTEGER, DIMENSION(96,12) :: dset_data, data_out ! Data buffers
> INTEGER(HSIZE_T), DIMENSION(2) :: data_dims
>
> filename='satfilename'
>
> CALL h5fopen_f(filename, H5F_ACC_RDONLY_F, file_id, error)
>
> CALL h5dopen_f(file_id,"BeamTime", dset_id, error)
>
>
> print *,"Data Set(ATMS) ID ERROR",dset_id, error .
> The h5dopen_f returns error as -1.
>
> Later on when I use
>
> CALL h5dread_f(dset_id, H5T_STD_I64BE, data_out, data_dims, error)
>
> error -1 is returned from this function as well and I get incorrect
> values of my variable in data_out.
>
> Can you help
> Gompie
>
>
>
> The h5dump of my hdf5 file has
>
>
> GROUP "All_Data" {
> GROUP "AMS-SDR_All" {
> DATASET "BeamTime" {
> DATATYPE H5T_STD_I64BE
> DATASPACE SIMPLE { ( 12, 96 ) / ( H5S_UNLIMITED,
> H5S_UNLIMITED ) }
> DATA {
> (0,0): 1816819231684734, 1816819231702752, 1816819231720770,
> (0,3): 1816819231738788, 1816819231756806, 1816819231774824
>
>
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> Hdf-forum is for HDF software users discussion.
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>
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