Hi Martijn,
In h5dump, I see that datasets that use a committed types have the path
to the type identified. E.g.:
DATASET "dset1" {
DATATYPE "/dtype1"
DATASPACE SIMPLE { ( 10 ) / ( 10 ) }
DATA {
(0): 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
}
}
DATATYPE "dtype1" H5T_IEEE_F32LE;
Is that not sufficient to see how the committed type is used?
In HDFView, the committed types are shown in the Tree View, but
dataset’s that reference them don’t indicate this. So that would be a good
feature to add. I’ve created an issue to track this request.
Regards,
John Readey
The HDF Group
From: Werner Benger <werner@cct.lsu.edu>
Reply-To: "hdf-forum@lists.hdfgroup.org" <hdf-forum@lists.hdfgroup.org>
Date: Sunday, November 16, 2014 at 6:41 AM
To: "hdf-forum@lists.hdfgroup.org" <hdf-forum@lists.hdfgroup.org>
Subject: Re: [Hdf-forum] Committed datatypes in HDFView/h5dump
Hi Martijn,
if you use h5ls, then it will indicate named data types as being "shared"
such as:
h5ls -rv
LOD.f5/t=000000000.0000000000/Triangulation/Faces/Points/Positions
Opened "LOD.f5" with sec2 driver.
t=000000000.0000000000/Triangulation/Faces/Points/Positions Dataset
{94525/94525}
Location: 1:1442029
Links: 1
Modified: 2014-09-17 01:34:18 Central Daylight Time
Storage: 1134300 logical bytes, 1134300 allocated bytes, 100.00%
utilization
Type: shared-1:1440965 struct {
"i" +0 native 32-bit field
"j" +4 native 32-bit field
"k" +8 native 32-bit field
} 12 bytes
If you do an h5ls on the type itself, it will show its attributes and the
shared-identifier as well:
h5ls -rv LOD.f5/Charts/triangular/SinglePrecision/Point
Opened "LOD.f5" with sec2 driver.
Charts/triangular/SinglePrecision/Point Type
Attribute: ChartDomain scalar
Type: 11-byte null-terminated ASCII string
Data: "triangular"
Attribute: F5::CellDimensionality scalar
Type: native int
Data: 2
Attribute: MemoryOrder {3}
Type: native int
Data: 1, 0, -1
Location: 1:1440965
Links: 2
Modified: 2014-09-17 01:34:18 Central Daylight Time
Type: shared-1:1440965 struct {
"i" +0 native 32-bit field
"j" +4 native 32-bit field
"k" +8 native 32-bit field
} 12 bytes
Cheers,
Werner
On 16.11.2014 02:12, Martijn Jasperse wrote:
Hi all,
I'd like to be able to tell in HDFView/h5dump when a dataset has a
committed datatype. Ideally I'd like a path to the committed type be
provided (a la H5Iget_name), but it would be sufficient to identify it as
being a committed type. It would be very useful to me for the debugging
tools to display this and not have to use my tools to check their files.
I'm using committed types to implement a type of units handling, and it
works great, except that the standard tools are not very helpful in working
with them. It would be excellent to add this feature to HDFView and/or
h5dump, but I would also be interested in other approaches and/or
workarounds.
Cheers,
Martijn
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Twitter: https://twitter.com/hdf5
--
___________________________________________________________________________
Dr. Werner Benger Visualization Research
Center for Computation & Technology at Louisiana State University (CCT/LSU)
2019 Digital Media Center, Baton Rouge, Louisiana 70803
Tel.: +1 225 578 4809 Fax.: +1 225 578-5362
_______________________________________________
Hdf-forum is for HDF software users discussion.
Hdf-forum@lists.hdfgroup.org
http://mail.lists.hdfgroup.org/mailman/listinfo/hdf-forum_lists.hdfgroup.org
Twitter: https://twitter.com/hdf5
