[vtkusers] Fwd: XDMF and hyperslabs

David E DeMarle dave.demarle at kitware.com
Wed Aug 26 10:55:17 EDT 2015 

That is in fact the xdmf 3 repository.

The lib's versioning scheme and ParaView's versioning scheme have disagreed
since xdmf 1.

lib: 1  1.5 2
pv: 1  2.0 3

Sorry for the confusion I introduced it back in xdmf2 as a workaround for
technical issues with the old CVS repository.









David E DeMarle
Kitware, Inc.
R&D Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909

On Wed, Aug 26, 2015 at 6:31 AM, victor sv <victorsv at gmail.com> wrote:

> Hi David,
>
> it seems that if I go to the "Version 3" (
> http://www.xdmf.org/index.php/Version_3) section of the XDMF web page it
> only has a link to XDMF version 2 git repository (git://
> public.kitware.com/Xdmf2.git).
>
> I cannot find a public repo for XDMF v3, could you send me a link to the
> public git repo for XDMF v3?
>
> Thanks again,
> Víctor.
>
> 2015-08-26 5:38 GMT+02:00 David E DeMarle <dave.demarle at kitware.com>:
>
>> Hi Victor,
>>
>> ARL and Kitware are the primary developers of Xdmf, but everyone is
>> invited to contribute  to the project.
>>
>> Yes xdmf3 has not yet replaced xdmf2 within ParaView. The binaries for
>> the next ParaView release (the release candidate should have it) will have
>> both turned on. Over the next few releases xdmf2 will be deprecated and
>> then removed from ParaView.
>>
>> xdmf itself can be built apart from VTK. On the xdmf wiki there are links
>> to the repositories that you can check out to build it standalone. What you
>> see in VTK/Thirdparty is a clone of parts of that standalone library. The
>> VTK interface to it is in VTK/IO.
>>
>> hth
>>
>>
>>
>> David E DeMarle
>> Kitware, Inc.
>> R&D Engineer
>> 21 Corporate Drive
>> Clifton Park, NY 12065-8662
>> Phone: 518-881-4909
>>
>> On Wed, Aug 19, 2015 at 12:03 PM, victor sv <victorsv at gmail.com> wrote:
>>
>>> Thanks Dan,
>>>
>>> it was an error in the XDMF file and it seems that is a valid format for
>>> Xdmf2. I comment the error between lines below.
>>>
>>> In a post that I sent to XDMF mailing list they say me that Xdmf3 is not
>>> by default in Paraview and I have to compile the sources with the correct
>>> options enabling Xdmf3.
>>>
>>> My problem with the versions is that the XDMF documentation and library
>>> versions is not "synchronized". It seems that Kitware is who is developing
>>> Xdmf3, but there isn't an stand-alone library, it only exists inside VTK
>>> project. I'm right?
>>>
>>> Thanks again,
>>> Víctor.
>>>
>>>
>>> 2015-08-18 4:09 GMT+02:00 Dan Lipsa <dan.lipsa at kitware.com>:
>>>
>>>> There are (advanced) options to enable either xdmf2 or xdmf3 in VTK.
>>>>
>>>> On Fri, Aug 14, 2015 at 6:27 AM, victor sv <victorsv at gmail.com> wrote:
>>>>
>>>>>
>>>>> ---------- Forwarded message ----------
>>>>> From: victor sv <victorsv at gmail.com>
>>>>> Date: 2015-08-14 12:25 GMT+02:00
>>>>> Subject: XDMF and hyperslabs
>>>>> To: vtkdev <vtk-developers at vtk.org>, vtk-users at vtk.org, "
>>>>> paraview at paraview.org" <paraview at paraview.org>
>>>>>
>>>>>
>>>>> Hello all,
>>>>>
>>>>> I'm trying to create and visualize an XDMF/HDF5 file containing a
>>>>> partitioned mesh using hyperslabs.
>>>>>
>>>>> Is this supported by Paraview/VTK ??
>>>>>
>>>>> The HDF5 (solution1.h5) looks as follows:
>>>>>
>>>>> GROUP "/" {
>>>>>    GROUP "Grid" {
>>>>>       DATASET "Connectivities" {
>>>>>          DATATYPE  H5T_STD_I32BE
>>>>>          DATASPACE  SIMPLE { ( 18 ) / ( 18 ) }
>>>>>          DATA {
>>>>>          (0): 0, 1, 2, 3, 2, 1, 4, 5, 6, 7, 6, 5, 6, 7, 8, 9, 8, 7
>>>>>          }
>>>>>       }
>>>>>       DATASET "Coordinates" {
>>>>>          DATATYPE  H5T_IEEE_F64BE
>>>>>          DATASPACE  SIMPLE { ( 20 ) / ( 20 ) }
>>>>>          DATA {
>>>>>          (0): 0, 0, 1, 0, 0, 0.5, 1, 0.5, 0, 0.5, 1, 0.5, 0, 1, 1, 1,
>>>>> 0, 1.5,
>>>>>          (18): 1, 1.5
>>>>>          }
>>>>>       }
>>>>>       DATASET "Solution" {
>>>>>          DATATYPE  H5T_IEEE_F64BE
>>>>>          DATASPACE  SIMPLE { ( 10 ) / ( 10 ) }
>>>>>          DATA {
>>>>>          (0): 0, 0, 0, 0, 1, 1, 1, 1, 1, 1
>>>>>          }
>>>>>       }
>>>>>    }
>>>>> }
>>>>>
>>>>> And the XDMF file to represent  a 2-triangle (4 points) piece of the
>>>>> full mesh is:
>>>>>
>>>>> <?xml version="1.0" encoding="utf-8"?>
>>>>> <Xdmf xmlns:xi="http://www.w3.org/2001/XInclude">
>>>>>   <Domain>
>>>>>     <Grid CollectionType="Spatial" GridType="Collection" Name="Mesh">
>>>>>       <Grid Name="Grid1">
>>>>>         <Topology Dimensions="6" Type="Triangle">
>>>>>           <DataItem ItemType="HyperSlab" Dimensions="6"
>>>>> Type="HyperSlab">
>>>>>
>>>>
>>> The problem is here, the correct dimensions are 2 (triangles) and not 6
>>> (integers)
>>>
>>>             <DataItem Dimensions="3 1" Format="XML"> 0 1 6 </DataItem>
>>>>>             <DataItem DataType="Int" Dimensions="18" Format="HDF"
>>>>> Precision="4">solution1.h5:Grid/Connectivities</DataItem>
>>>>>           </DataItem>
>>>>>         </Topology>
>>>>>         <Geometry GeometryType="XY">
>>>>>           <DataItem ItemType="HyperSlab" Dimensions="8"
>>>>> Type="HyperSlab">
>>>>>             <DataItem Dimensions="3 1" Format="XML"> 0 1 8 </DataItem>
>>>>>             <DataItem DataType="Float" Dimensions="20" Format="HDF"
>>>>> Precision="8">solution1.h5:Grid/Coordinates</DataItem>
>>>>>           </DataItem>
>>>>>         </Geometry>
>>>>>       </Grid>
>>>>>     </Grid>
>>>>>   </Domain>
>>>>> </Xdmf>
>>>>>
>>>>> I'm trying to use the syntax explained at the XDMF webpage (
>>>>> http://www.xdmf.org/index.php/XDMF_Model_and_Format ), but I'm
>>>>> feeling confused about the version of the documentation and current version
>>>>> of XDMF library included in VTK library.
>>>>>
>>>>> Can anyone give me some info about this?
>>>>> It is XDMFv3 already public ?
>>>>>
>>>>>
>>>>> Thanks in advance,
>>>>> Víctor.
>>>>>
>>>>>
>>>>>
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>>>>
>>>
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>
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