[Paraview] Using real timesteps in pvd files

[Berk Geveci]

Hmmm. Weird. We are using strtod to make the conversion from string to
double. That must somehow obey localization settings. Looking at here
http://www.mkssoftware.com/docs/man3/strtod.3.asp I see that we need
to somehow set the localization properly for the right radix. Should
we always set it to . ?

-berk


On Thu, Jan 29, 2009 at 7:21 AM, Christian Wellmann
<wellmann at ikm.uni-hannover.de> wrote:
> Hi all. As I now figured out, the problem with my real timestep values
> seems to be the decimal separator. Strangely my ParaView 3.4
> installation seems to require a comma as decimal separator. So
>
> <DataSet timestep="0,5e-5" group="0" part="0"
> file="hour_5121_fall_se0000000.vtp"/>
>
> is interpreted correctly and gives the time value 0.5e-5.
> The idea of using a comma as decimal separator came into my mind
> using the "Annotate Time" filter, which shows comma separated values
> in my installation.
>
>
> 2009/1/29 Christian Wellmann <wellmann at ikm.uni-hannover.de>:
>> Thanks Stephen and John for your quick answers.
>> Unfortunately any changes to the group and/or part tag not seem to
>> solve the problem.
>> What is strange is that, although ParaView seems to read an int value,
>> it is able
>> to handle
>>
>> <DataSet timestep="-922337203685477580825263735124730" group=""
>> part="0" file="sp_test0000000.vtp"/>
>> <DataSet timestep=" 922337203685477580825263735124730" group=""
>> part="0" file="sp_test0002498.vtp"/>
>>
>> correctly, what gives me
>>
>> Index      Value
>> 0            -9.22337e+32
>> 1             9.22337e+32
>>
>> in the time table although the values are out of range of any standard
>> integer representation I guess.
>> However, as a workaround -considering the large range of representable
>> integer values- I will simpliy
>> change my scale to micro- or even nano-seconds to get integer time values.
>>
>>
>> 2009/1/29 John Biddiscombe <biddisco at cscs.ch>:
>>> Christian
>>>
>>> <?xml version="1.0"?>
>>> <VTKFile type="Collection" version="0.1" byte_order="LittleEndian">
>>>  <Collection>
>>>  <DataSet timestep="1.08267" file="1800_001-static-00000.vtmb"/>
>>>  <DataSet timestep="1.08367" file="1800_001-static-00001.vtmb"/>
>>>  <DataSet timestep="1.08467" file="1800_001-static-00002.vtmb"/>
>>> ...
>>>  <DataSet timestep="1.34967" file="1800_001-static-00267.vtmb"/>
>>>  </Collection>
>>> </VTKFile>
>>>
>>> This works for me. Can't comment on why you are having trouble, but maybe
>>> try to remove the group, part unused tags.
>>>
>>> I use CVS paraview (3.4 should work)
>>>
>>> JB
>>>
>>>> Dear all,
>>>>
>>>> I'm using ParaView 3.4 to load the results of a transient simulation
>>>> via a pvd file and a set
>>>> of vtp XML PolyData files. Each vtp file corresponds to a particular real
>>>> time
>>>> value which are not evenly spaced. I tried to provide the real time
>>>> values via the timestep key
>>>> in the pvd file:
>>>>
>>>> <?xml version="1.0"?>
>>>> <VTKFile type="Collection" version="0.1" byte_order="LittleEndian">
>>>> <Collection>
>>>> <DataSet timestep="1.23"  group="" part="0" file="sp_test0000000.vtp"/>
>>>> <DataSet timestep="2.34"  group="" part="0" file="sp_test0002498.vtp"/>
>>>> <DataSet timestep="3.15"  group="" part="0" file="sp_test0004496.vtp"/>
>>>> </Collection>
>>>> </VTKFile>
>>>>
>>>> It seems that ParaView expects integer values for the timestep key,
>>>> because
>>>> it loads the files like expected but the time table in the Object
>>>> Inspector -> Information
>>>> tab shows for the above pvd file:
>>>> Index   Value
>>>> 0         1
>>>> 1         2
>>>> 2         3
>>>>
>>>> I would be grateful for any help/suggestions.
>>>>
>>>> Thanks,
>>>> Christian Wellmann
>>>> _______________________________________________
>>>> ParaView mailing list
>>>> ParaView at paraview.org
>>>> http://www.paraview.org/mailman/listinfo/paraview
>>>>
>>>
>>>
>>> --
>>> John Biddiscombe,                            email:biddisco @ cscs.ch
>>> http://www.cscs.ch/
>>> CSCS, Swiss National Supercomputing Centre  | Tel:  +41 (91) 610.82.07
>>> Via Cantonale, 6928 Manno, Switzerland      | Fax:  +41 (91) 610.82.82
>>>
>>>
>>>
>>
>
>
>
> --
> Christian Wellmann
> Institute of Continuum Mechanics
> Leibniz Universitaet Hannover
> Appelstr. 11
> 30167 Hannover, Germany
> phone: +49 511 762 2285
> fax: +49 511 762 5496
> email: wellmann at ikm.uni-hannover.de
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