[Dune] UG and DGF with element parameters

[Oliver Sander]

Hi Nicolas,

 > Using a dgf file with elementwise parameters and a UG grid throws me 
the aforementioned error so that I assumed that I do not need the 
insertionIndex methods directly but it is needed to handle elementwise 
parameters. I actually don't know why it is not needed for vertex 
parameters.

Maybe that's a bug in the dgf reader?  Or there is some magic default 
implementation
for the vertices?  I do not know.
>
> Anyhow I want to implement the missing methods. I followed the 
> implementation for Alberta and ALU. Where I begin to struggle is: What 
> is the method in UG  (in Alberta it is somehow integrated/hidden in 
> elementInfo() and in ALU it is getIndex() ) which gives me the index 
> for an entity which I can then forward (because you said there will be 
> simply no re-ordering)? Could you please help me on this one?
>
Have a look at the implementation of UGGridLevelIndexSet.  There you'll 
find how to extract
indices from UG.

best,
Oliver

> Best,
> Nicolas
>
> On 08/21/2012 06:07 PM, Oliver Sander wrote:
>> Hi Nicolas,
>> I never implemented that insertion order stuff for UG, because I could
>> convince UG not ro reorder elements and vertices to begin with, and
>> because I have so far not met anybody who actually needed those methods.
>>
>> If you do need those methods I would ask you to implement them and send
>> me a patch.  Implementation is trivial: there is simply no reordering.
>>
>> best,
>> Oliver
>>
>> Am 16.08.2012 15:03, schrieb Nicolas Schwenck:
>>> Dear DUNE,
>>>
>>> Running the testug in dune-grid/dune/grid/io/file/dgfparser/test with
>>> the file dune-grid/doc/grids/dgf/examplegrid10a.dgf on the trunk breaks
>>> for me with
>>>
>>> NotImplemented
>>> [insertionIndex:../../../../../../dune/grid/common/gridfactory.hh:181]:
>>> insertion indices have not yet been implemented.
>>>
>>> I assume that there is a problem with elementwise parameters for UG
>>> grids. Is this a bug or is it just not yet implemented as the error
>>> suggests? Does anybody uses ug for dgfs with elementwise parameters and
>>> can throw me a hint?
>>>
>>> Best,
>>> Nicolas
>>>
>>>
>>
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>>
>
>


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* Oliver Sander                ** email: sander at mi.fu-berlin.de        *
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