HDFView 3.1.3 - attribute with compound type

HDFView / Java HDF Object Package
1

test-data.h5 (18.1 KB)

In the attached file I’ve added a single row of data of a compound type as an attribute and as a data-set.
HDFView can display the data-set but when I double click the attribute I get “Error occured when instantiating TableView class.”

2

Could be an HDFView bug. The h5dump output is shown below. What happened to that dataset /MeasurementConfigurations? How did you create this file?

HDF5 "Downloads/test-data.h5" {
GROUP "/" {
   GROUP "Measurement:12019" {
      ATTRIBUTE "MeasurementConfiguration" {
         DATATYPE  H5T_COMPOUND {
            H5T_STD_I64LE "Id";
            H5T_IEEE_F64LE "Timestamp";
            H5T_STRING {
               STRSIZE 50;
               STRPAD H5T_STR_NULLTERM;
               CSET H5T_CSET_ASCII;
               CTYPE H5T_C_S1;
            } "Name";
            H5T_STRING {
               STRSIZE 255;
               STRPAD H5T_STR_NULLTERM;
               CSET H5T_CSET_ASCII;
               CTYPE H5T_C_S1;
            } "Description";
            H5T_STRING {
               STRSIZE 255;
               STRPAD H5T_STR_NULLTERM;
               CSET H5T_CSET_ASCII;
               CTYPE H5T_C_S1;
            } "ModuleName";
            H5T_STRING {
               STRSIZE 255;
               STRPAD H5T_STR_NULLTERM;
               CSET H5T_CSET_ASCII;
               CTYPE H5T_C_S1;
            } "ScannerName";
            H5T_STRING {
               STRSIZE 8000;
               STRPAD H5T_STR_NULLTERM;
               CSET H5T_CSET_ASCII;
               CTYPE H5T_C_S1;
            } "ScannerConfiguration";
            H5T_STRING {
               STRSIZE 32;
               STRPAD H5T_STR_NULLTERM;
               CSET H5T_CSET_ASCII;
               CTYPE H5T_C_S1;
            } "SessionKey";
         }
         DATASPACE  SIMPLE { ( 1 ) / ( H5S_UNLIMITED ) }
         DATA {
         (0): {
               4075,
               44460.5,
               "Measurement name",
               "Measurement description",
               "WiperBladeModule",
               "WiperBladeScanner",
               "{
               "__class__": "tvlsystem.acquisition_params.WiperBladeAcquisitionParams",
               "ave_tol_neg": 0.0,
               "ave_tol_pos": 0.0,
               "coav_interval": 2.0,
               "coaverages": 1,
               "max_tol_neg": 0.0,
               "max_tol_pos": 0.0,
               "min_tol_neg": 0.0,
               "min_tol_pos": 0.0,
               "optical_delay_extent": 35.0,
               "optical_delay_offset": 0.0,
               "oversample": 1,
               "prepulse_extent": 10.0,
               "reference_coaves": 100,
               "rsdl_amplitude": 45.0,
               "split_directions": false,
               "track_peak": false,
               "waveform_rate": 15.0
           }",
               "5ddbe25795ad48118f105d0442ef7bfc"
            }
         }
      }
      DATASET "MeasurementConfigurations" {
         DATATYPE  H5T_COMPOUND {
            H5T_STD_I64LE "Id";
            H5T_IEEE_F64LE "Timestamp";
            H5T_STRING {
               STRSIZE 50;
               STRPAD H5T_STR_NULLTERM;
               CSET H5T_CSET_ASCII;
               CTYPE H5T_C_S1;
            } "Name";
            H5T_STRING {
               STRSIZE 255;
               STRPAD H5T_STR_NULLTERM;
               CSET H5T_CSET_ASCII;
               CTYPE H5T_C_S1;
            } "Description";
            H5T_STRING {
               STRSIZE 255;
               STRPAD H5T_STR_NULLTERM;
               CSET H5T_CSET_ASCII;
               CTYPE H5T_C_S1;
            } "ModuleName";
            H5T_STRING {
               STRSIZE 255;
               STRPAD H5T_STR_NULLTERM;
               CSET H5T_CSET_ASCII;
               CTYPE H5T_C_S1;
            } "ScannerName";
            H5T_STRING {
               STRSIZE 8000;
               STRPAD H5T_STR_NULLTERM;
               CSET H5T_CSET_ASCII;
               CTYPE H5T_C_S1;
            } "ScannerConfiguration";
            H5T_STRING {
               STRSIZE 32;
               STRPAD H5T_STR_NULLTERM;
               CSET H5T_CSET_ASCII;
               CTYPE H5T_C_S1;
            } "SessionKey";
         }
         DATASPACE  SIMPLE { ( 1 ) / ( H5S_UNLIMITED ) }
         DATA {h5dump error: unable to print data

         }
      }
   }
}
}
3

What version is hdfview? We have fixed a number of issues since the release of hdfview 3.1.1
Current development (soon to be released) does display correctly.

Allen

4

What do you mean ‘what happened to …’? If you mean why is it only one row, then it’s just a test.

My code here: https://github.com/PhilPJL/HDF5Test

5

It’s version 3.1.3 - annoyingly this post has to be > 20 characters :slight_smile:

6

The attribute value seems sensible, but the dataset value looks uninitialized(?).

7

Looks ok in the viewer

image
image1170×447 9.46 KB

8

We do have binaries of the latest hdfview development for some platforms we could make available.
On my system, fedora 35, i have development builds of both hdf5 and hdfview that display this file correctly.
HDF5 1.12.2 will be released within a couple of weeks and HDFView 3.2.0 (based on hdf5 1.12.2) should be released shortly after that.

9

ok great - no hurry. My client wants attributes as simple types for now anyway.