[petsc-users] vtk output ASCII or binary

[Matthew Knepley]

On Tue, Mar 4, 2014 at 12:58 PM, Xiangdong <epscodes at gmail.com> wrote:

> Thanks, Matt.
>
> Given that the FILE_MODE_APPEND is not supported for VTK format, is it
> possible to write two vectors into the same VTK data file?
>

Yes, just call VecView() twice.

   Matt


> Thank you.
>
> Xiangdong
>
>
> On Tue, Mar 4, 2014 at 1:52 PM, Matthew Knepley <knepley at gmail.com> wrote:
>
>> On Tue, Mar 4, 2014 at 12:31 PM, Xiangdong <epscodes at gmail.com> wrote:
>>
>>> What is the difference between PetscViewerSetType and
>>> PetscViewerSetFormat? It seems that the first one take argument like
>>> PETSCVIEWERVTK, while the second one takes PETSC_VIEWER_VTK_VTS.
>>>
>>
>> A viewer type is the object type, just like other PETSc object, e.g. KSP.
>> The format is a particular version
>> of that output. For example, ASCII viewer is a type, whereas Matlab is a
>> format.
>>
>>
>>> By the way, how can I find a full list of formats? Clearly,
>>> PETSC_VIEWER_VTK_VTS is not listed in online documentation for
>>> PetscViewerSetFormat
>>>
>>> http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Viewer/PetscViewerSetFormat.html
>>>
>>
>> It is listed in the complete list:
>>
>>
>> http://www.mcs.anl.gov/petsc/petsc-dev/docs/manualpages/Viewer/PetscViewerFormat.html
>>
>>     Matt
>>
>>
>>>  Thank you.
>>>
>>> Xiangdong
>>>
>>>
>>> On Tue, Mar 4, 2014 at 1:02 PM, Matthew Knepley <knepley at gmail.com>wrote:
>>>
>>>> On Tue, Mar 4, 2014 at 11:44 AM, Xiangdong <epscodes at gmail.com> wrote:
>>>>
>>>>> Hello everyone,
>>>>>
>>>>> When I use PetsViewerVTKOpen to output vec in vtk format, is it in
>>>>> ASCII format or binary format? Are there any options to choose between them?
>>>>>
>>>>
>>>> It is determined by the format, e.g. PETSC_VIEWER_VTK_VTU.
>>>>
>>>>    Matt
>>>>
>>>>
>>>>> Thank you.
>>>>>
>>>>> Xiangdong
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> What most experimenters take for granted before they begin their
>>>> experiments is infinitely more interesting than any results to which their
>>>> experiments lead.
>>>> -- Norbert Wiener
>>>>
>>>
>>>
>>
>>
>> --
>> What most experimenters take for granted before they begin their
>> experiments is infinitely more interesting than any results to which their
>> experiments lead.
>> -- Norbert Wiener
>>
>
>


-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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