Actually, I am wrong. Wasn't looking closely, BeamTime is at path "All_Data/AMS-SDR_All/BeamTime".
I don't honestly remember if in HDF5 you can pass the slash-separated string above to open the dataset itself without having to open the intervening groups or not. Try it. I think h5dopen on the string "All_Data/AMS-SDR_All/BeamTime" may work. Otherwise, you'll have to open All_Data group and then open AMS-SDR_All group before you can open BeamTime. Mark From: Hdf-forum <[email protected]<mailto:[email protected]>> on behalf of Richa Mathur <[email protected]<mailto:[email protected]>> Reply-To: HDF Users Discussion List <[email protected]<mailto:[email protected]>> Date: Tuesday, August 4, 2015 12:03 PM To: HDF Users Discussion List <[email protected]<mailto:[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]<mailto:[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]<mailto:[email protected]>> on behalf of Richa Mathur <[email protected]<mailto:[email protected]>> Reply-To: HDF Users Discussion List <[email protected]<mailto:[email protected]>> Date: Tuesday, August 4, 2015 10:42 AM To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[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]<mailto:[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
