dolfin team mailing list archive

["Johan Hoffman" <jhoffman@xxxxxxxxxx>]

>
>
> Anders Logg wrote:
>> On Fri, May 11, 2007 at 03:54:42PM +0200, Johan Hoffman wrote:
>>
>>> Do we have support for reading time dependent functions? And if so, is
>>> there a demo around? I couldn't find such a functionality in
>>> XMLFunction?
>>>
>>> /Johan
>>
>> No, we just have static functions at this point. So you need to have
>> one function per file.
>>
>> We could add something like a new class TimeSeries and implement XML
>> input/output for that:
>>
>> <timeseries>
>>     <frame t="0.0">
>>         <function>
>>             ...
>>         </function>
>>     </frame>
>> </timeseries>
>>
>
> What about using that same approach as for VTK files?  The function at
> each time step can be written to a file with a number appended (000,
> 001, etc). A "main" xml file can contain a list of the files and the
> time corresponding to each one.

Sounds like a good idea; and then we can use the main-xml file for reading
a linear interpolation of the function for arbitrary time.

/Johan


> Garth
>
>> This might be useful to have, but for efficient reading/writing of
>> functions, one may consider a binary format that just reads and writes
>> the dofs.
>>
>> /Anders
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