Thanks Mark and Corey.
after CALL h5fopen_f(filename, H5F_ACC_RDONLY_F, file_id, error)
I gave CALL h5gopen_f(file_id,"All_data" , grp_id1, grp_hdferr) as the
first call to open the group and got grp_hdrerr as -1.
I guess there is an error opening the group All_data.
the h5dump -n output is
HDF5
"SAMS_npp_d20150728_t2359556_e0000273_b19431_c20150729063134831043_nasa_ops.h5"
{
FILE_CONTENTS {
group /
group /All_Data
group /All_Data/AMS-SDR_All
dataset /All_Data/AMS-SDR_All/BeamTime
dataset /All_Data/AMS-SDR_All/BrightnessTemperature
dataset /All_Data/AMS-SDR_All/BrightnessTemperatureFactors
Any help....
On Tue, Aug 4, 2015 at 3:11 PM, Miller, Mark C. <[email protected]> wrote:
> yeah, agree. "BeamTime" is in group "All_Data". To get to BeamTime, you
> have to H5Gopen the group and use the hid_t you get from that group in
> place of 'file_id' arg in h5dopen. Don't forget to close the group (and
> dataset) after you're done.
>
> 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 12:03 PM
> To: HDF Users Discussion List <[email protected]>
> Subject: Re: [Hdf-forum] h5dopen returns error
>
> 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
>>
>>
>> _______________________________________________
>> Hdf-forum is for HDF software users discussion.
>> [email protected]
>> http://lists.hdfgroup.org/mailman/listinfo/hdf-forum_lists.hdfgroup.org
>> Twitter: https://twitter.com/hdf5
>>
>
>
> _______________________________________________
> Hdf-forum is for HDF software users discussion.
> [email protected]
> http://lists.hdfgroup.org/mailman/listinfo/hdf-forum_lists.hdfgroup.org
> Twitter: https://twitter.com/hdf5
>
_______________________________________________
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