Creating HDF5 file with HDFView

Hdf-forum archives
1

I am trying to create a trivial HDF5 formatted file with HDFView. I created 4 datasets of single diminsion with 1 item and unlimited max size each for testing.
I assumed I could load the data using import data from file, but that doesn't seem to work.

Am I attempting to do something not intended? Otherwise what approch should I use?

Thanks,

Jonathan

2

Hi Jonathan,

Could you be more specific how you did it?

Thanks
--pc

···

On 12/3/2010 11:22 AM, Hillman, Jonathan E wrote:

I am trying to create a trivial HDF5 formatted file with HDFView. I created 4 datasets of single diminsion with 1 item and unlimited max size each for testing.
I assumed I could load the data using import data from file, but that doesn't seem to work.

Am I attempting to do something not intended? Otherwise what approch should I use?

Thanks,

Jonathan

_______________________________________________
Hdf-forum is for HDF software users discussion.
Hdf-forum@hdfgroup.org
http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org

3

Thanks for replying... this is the path I thought would let me create a test HDF5 file with 4 datasets and importing
data from a file...

HDFView:
1) New -> HDF5 (Test.h5)
2) Right click on Test.h5, New -> Dataset
   Dataset Name: Sensor1
   Datatype class: Float, Size: native, Byte ordering: native
   Number of diminsions: 1, Current size: 1, Set max size: unlimited
   Storage layout: Contiguous
   No compression
3) added 3 more datasets similarly as above, Sensor2, Sensor3, Sensor4
4) selected item 0
5) Double-click on Sensor1 dataset
6) From Sensor1, Table -> Import Data from File, open the selected file
   containing 10 measurements: 0.00 0.01 0.03 0.30 0.60 0.99 1.11 1.21 1.74 1.88
   "Do you want to paste selected data?" <Yes>

Nothing happens. I was expecting (hoping for) imported data to populate the 1-dim table.

Was this a bogus approach?

Thanks again, :slight_smile:

Jonathan

···

-----Original Message-----
From: hdf-forum-bounces@hdfgroup.org [mailto:hdf-forum-bounces@hdfgroup.org] On Behalf Of Peter Cao
Sent: Friday, December 03, 2010 11:56 AM
To: HDF Users Discussion List
Subject: Re: [Hdf-forum] Creating HDF5 file with HDFView

Hi Jonathan,

Could you be more specific how you did it?

Thanks
--pc

On 12/3/2010 11:22 AM, Hillman, Jonathan E wrote:

I am trying to create a trivial HDF5 formatted file with HDFView. I created 4 datasets of single diminsion with 1 item and unlimited max size each for testing.
I assumed I could load the data using import data from file, but that doesn't seem to work.

Am I attempting to do something not intended? Otherwise what approch should I use?

Thanks,

Jonathan

_______________________________________________
Hdf-forum is for HDF software users discussion.
Hdf-forum@hdfgroup.org
http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org

_______________________________________________
Hdf-forum is for HDF software users discussion.
Hdf-forum@hdfgroup.org
http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org

4

Jonathan,

Importing data will not extend the size of a dataset, only copies the data to the
current size.

Try to set the current size to 10 when you creating the dataset.

Thanks
--pc

···

On 12/3/2010 12:13 PM, Hillman, Jonathan E wrote:

Thanks for replying... this is the path I thought would let me create a test HDF5 file with 4 datasets and importing
data from a file...

HDFView:
1) New -> HDF5 (Test.h5)
2) Right click on Test.h5, New -> Dataset
    Dataset Name: Sensor1
    Datatype class: Float, Size: native, Byte ordering: native
    Number of diminsions: 1, Current size: 1, Set max size: unlimited
    Storage layout: Contiguous
    No compression
3) added 3 more datasets similarly as above, Sensor2, Sensor3, Sensor4
4) selected item 0
5) Double-click on Sensor1 dataset
6) From Sensor1, Table -> Import Data from File, open the selected file
    containing 10 measurements: 0.00 0.01 0.03 0.30 0.60 0.99 1.11 1.21 1.74 1.88
    "Do you want to paste selected data?"<Yes>

Nothing happens. I was expecting (hoping for) imported data to populate the 1-dim table.

Was this a bogus approach?

Thanks again, :slight_smile:

Jonathan

-----Original Message-----
From: hdf-forum-bounces@hdfgroup.org [mailto:hdf-forum-bounces@hdfgroup.org] On Behalf Of Peter Cao
Sent: Friday, December 03, 2010 11:56 AM
To: HDF Users Discussion List
Subject: Re: [Hdf-forum] Creating HDF5 file with HDFView

Hi Jonathan,

Could you be more specific how you did it?

Thanks
--pc

On 12/3/2010 11:22 AM, Hillman, Jonathan E wrote:

I am trying to create a trivial HDF5 formatted file with HDFView. I created 4 datasets of single diminsion with 1 item and unlimited max size each for testing.
I assumed I could load the data using import data from file, but that doesn't seem to work.

Am I attempting to do something not intended? Otherwise what approch should I use?

Thanks,

Jonathan

_______________________________________________
Hdf-forum is for HDF software users discussion.
Hdf-forum@hdfgroup.org
http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org

_______________________________________________
Hdf-forum is for HDF software users discussion.
Hdf-forum@hdfgroup.org
http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org

_______________________________________________
Hdf-forum is for HDF software users discussion.
Hdf-forum@hdfgroup.org
http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org